Elementary Particles - Science topic

Dear Colleagues, Quantum mechanics has become a universal language for microscopic models, from elementary particles to nuclear, molecular, and solid state physics. The identification of the underlying symmetries of the system is directly connected with conservation laws. The symmetry breaking, on the other hand, indicates the existence of a chara...

Superheavy dark matter has been attractive as a candidate of particle dark matter. We propose a "natural" particle model, in which the dark matter serves as the inflaton in natural inflation, while decaying to high-energy particles at energies of $10^{9}-10^{13} \, \text{GeV}$ from the prediction of the inflation. A scalar field responsible to dilu...

Recently, the LHCb Collaboration achieved the observation of CP violation (CPV) in baryon decays through the process of $\Lambda_b^0\to pK^-\pi^+\pi^-$, reporting an asymmetry of $(2.45\pm0.46\pm0.10)\%$ with a significance of 5.2$\sigma$. This marks a breakthrough and a milestone in particle physics, six decades after the first observation of CPV...

We examine the most general nucleon decay interactions that involve three light quarks without being acted upon by a derivative. We identify four generic operator structures that correspond to the irreducible representations in the chiral group ${\rm SU(3)}_{\tt L}\otimes {\rm SU(3)}_{\tt R}$ of QCD, {$\pmb{8}_{\tt L}\otimes \pmb{1}_{\tt R}$, $\bar...

I believe my research on granular dynamics has demonstrated the uncertainty of complex systems in the macro world. The two proposed principles are my perspectives on complex systems, showing my initial cognition on the objective world, i.e., uncertainty is an ontological property of nature. I reject any attempt to "incorporate all forms of understa...

Recent results from ALICE and CMS show a low-transverse-momentum enhancement of charm baryon-to-meson production ratios over model predictions based on e+e⁻ collisions. Several mechanisms are proposed to understand this phenomenon. New measurements by the LHCb and ALICE experiments show a similar enhancement in the beauty sector. We explore this en...

We investigate the resonant baryonic B decay B − → P c s 0 p ¯ , P c s 0 → J / ψ Λ , where P c s 0 ≡ P c s ( 4338 ) 0 is identified as a hidden charm pentaquark candidate with strangeness. By interpreting P c s 0 as the Ξ c D ¯ molecule that strongly decays into J / ψ Λ and η c Λ , we discover a dominant triangle rescattering effect for B − → P c s...

Any unified description of motion that includes the two Lagrangians of general relativity and of the standard model of particle physics with massive neutrinos must conform to the observed invariant Planck limits for speed, action, entropy, and force. First, these four Planck limits are shown to imply that all observed motion - the motion of black h...

Context:Halo formation time, which quantifies the mass assembly history of dark-matter halos, directly impacts galaxy properties and evolution. Although not directly observable, it can be inferred through proxies like star formation history or galaxy spatial distributions. Recent advances in machine learning enable more accurate predictions of halo...

Mahendra Samarawickrama's Conscious Model of Particle Physics repositions consciousness as a fundamental dimension in physical law and introduces the primion, an elementary particle that governs non-local awareness and preserves the integrity of entangled systems. Using the Oscillatory Dynamics Transductive-Bridging Theorem (ODTBT), this article an...

We investigate potential deviations from cold dark matter (CDM) using the latest Baryon Acoustic Oscillations (BAO) measurements from the Dark Energy Spectroscopic Instrument (DESI). Analyzing DESI data alone constrains the dark matter equation of state parameter $w_{\mathrm{dm}} = -0.042^{+0.047}_{-0.024}$, revealing a mild preference for non-cold...

Starting from Euler's equations for an incompressible and inviscid cosmic fluid that permeates the entire Universe, we include the Lorentz-like acceleration from the gravito-electromagnetic field on the right-hand side of the equation, as an additional contribution to the total acceleration field acting on particles. A physically consistent solutio...

We construct an effective chiral theory for the nucleon, based on the low-energy effect quantum chromodynamics (QCD) partition function from the QCD instanton vacuum. We fully consider the momentum-dependent dynamical quark mass whose value at the zero virtuality of the quark is determined by the gap equation from the instanton vacuum, M 0 = 359 Me...

We study the productions of $\Lambda$-hypernuclei $^3_{\Lambda}$H, $^4_{\Lambda}$H and $^4_{\Lambda}$He in the coalescence mechanism in Au-Au collisions at $\sqrt{s_{NN}}=3$ GeV. Considering the abundance and great importance of baryons and light (hyper-)nuclei on the collision dynamics, we include not only nucleon$+\Lambda$ coalescence but also nu...

We introduce a novel method to constrain the Hubble constant ($H_0$) by combining fast radio bursts (FRBs) and their persistent radio sources (PRSs) through the observationally validated Yang relation, $ L_{\nu} \propto | \mathrm{RM} | $, which links PRS luminosity to the rotation measure (RM) of the associated FRB. Using a mock sample of PRSs, we...

A recent study using weak gravitational lensing reveals that there are some isolated galaxies having almost flat rotation curves at very large distance from the galactic centres. According to the authors of the study this provides a strong challenge the standard cold dark matter model, since the dark haloes are too small to explain their observatio...

The estimation of uncertainties in cosmological parameters is an important challenge in Large-Scale-Structure (LSS) analyses. For standard analyses such as Baryon Acoustic Oscillations (BAO) and Full-Shape two approaches are usually considered. First: analytical estimates of the covariance matrix use Gaussian approximations and (nonlinear) clusteri...

We study a scale invariant inverse seesaw model that radiatively generates the electroweak scale, the Standard Model (SM) neutrino masses, and stabilizes the electroweak vacuum. Previous studies have noted that the SM Higgs potential and the electroweak scale can be radiatively generated via the minimal seesaw mechanism. This scenario, called the `...

Recursive Fractal Cosmology (RFC) presents a unifying symbolic framework in which reality emergesnot from fixed particles or immutable laws, but from recursive entropy compression across a metaphysical triad: the Quantum Vacuum (QV), the Cosmic Infinite Field (CIF), and the Recursive Fractal Lattice (RFL). These three symbolic domains govern the em...

This paper presents novel elementary particle predictions emerging from Laur-sian Dimensionality Theory (LDT), which reconceptualizes spacetime as a "2+2" dimensional structure with two rotational spatial dimensions and two temporal dimensions. This dimensional reinterpretation naturally predicts the existence of previously undetected particles bey...

The sum of neutrino masses can be measured cosmologically, as the sub-eV particles behave as “hot” dark matter whose main effect is to suppress the clustering of matter compared to a universe with the same amount of purely cold dark matter. Current astronomical data provide an upper limit on ∑ m ν between 0.07–0.12 eV at 95% confidence, depending o...

We present two approaches for "painting" baryonic properties relevant to the Sunyaev-Zel'dovich (SZ) effect - optical depth and Compton-$y$ - onto 3-dimensional $N$-body simulations, using the MillenniumTNG suite as a benchmark. The goal of these methods is to produce fast and accurate reconstruction methods to aid future analyses of baryonic feedb...

Modified cosmology based on Barrow entropy arises from the gravity-thermodynamics conjecture, in which the standard Bekenstein-Hawking entropy is replaced by the Barrow entropy of quantum-gravitational origin, characterized by the Barrow parameter $\Delta$. Interestingly, this framework exhibits similarities with cosmology based on Tsallis $\delta$...

The Epoch of Reionization (EoR) marks a pivotal period in the history of the universe when the first luminous sources ionized the intergalactic medium (IGM). Despite the wealth of observational and computational progress, a fundamental question persists: Can reionization be modelled accurately and completely within the framework of current cosmolog...

The Chameleon Effect is a compelling mechanism in scalar field theories wherein the scalar field's mass depends on the local matter density, allowing it to evade detection in high-density environments while influencing cosmology in low-density regimes. In this paper, we revisit the theoretical underpinnings of the Chameleon mechanism and explore it...

The intergalactic medium (IGM) comprises all the matter that lies between galaxies. Hosting the vast majority ($\gtrsim 90\%$) of the baryons in the Universe, the IGM is a critical reservoir and probe for cosmology and astrophysics, providing insights into large-scale structure formation and galaxy evolution. In this Chapter, we present an overview...

Dark matter (DM) particles can interact with particles of the Standard Model. Although there exist constraints from direct and indirect detection experiments, the dynamical evolution of astrophysical objects could provide a promising probe for these interactions. Obtaining astrophysical predictions is challenging and limited by our ability to simul...

Based on the model of three-fluid dynamics (3FD), the global $\Lambda$ polarization ($P_\Lambda$) is calculated in Au+Au collisions at 3 $\leq\sqrt{s_{NN}}\leq$ 9 GeV, in which high baryon density is achieved. Various contributions to $P_\Lambda$ are considered: those from the thermal vorticity, meson field, thermal shear and spin-Hall effect. Feed...

A precise measurement of the top-Higgs coupling is essential in particle physics, as it offers a powerful probe of potential new physics beyond the Standard Model (BSM), particularly scenarios involving ${\cal CP}$ violation, which is a key condition in addressing the problem of baryon asymmetry of the universe. In this article, we review the recen...

Dark energy, the enigmatic force driving the accelerated cosmic expansion of the universe, is conventionally described as a cosmological constant in the standard ΛCDM model. However, measurements from the Dark Energy Spectroscopic Instrument (DESI) reports a >2.5σ preference for dynamical dark energy, with baryon acoustic oscillation (BAO) data fav...

We critically review the evidence for time-varying dark energy from recent Baryon Acoustic Oscillations (BAO) and Supernova (SN) observations. First, we show that such evidence is present at the 3σ level, even without the new BAO data from the dark energy Spectroscopic Instrument (DESI), by instead using BAO data from the dark energy Survey (DES),...

I proposed a unified model of particle physic and cosmology in \cite {1}, which can successfully account for many things of the inflation, dark energy, dark matter, neutrino mass and baryogenesis. Based on the model, I here focus on the fermion flavour issues. I introduce a realistic flavour symmetry to generate the fermion mass and mixing. From th...

Galaxy formation models predict that local galaxies are surrounded by hot X-ray-emitting halos, which are technically difficult to detect due to their extended and low surface brightness nature. Previous X-ray studies have mostly focused on disk galaxies more massive than the Milky Way, with essentially no consensus on the halo X-ray properties at...

Hot- and cold-start planet formation models predict differing luminosities for the young, bright planets that direct imaging surveys are most sensitive to. However, precise mass estimates are required to distinguish between these models observationally. The presence of two directly imaged planets, PDS 70 b and c, in the PDS 70 protoplanetary disk p...

This paper presents a novel derivation of the Standard Model particle spectrum based on a reformulation of Einstein's mass-energy equivalence from E = mc 2 to Et 2 = md 2. By interpreting spacetime as a "2+2" dimensional structure-with two rotational spatial dimensions and two temporal dimensions, one of which manifests as the perceived third spati...

The recent discovery that abundant water was already present in the universe 100-200 million years after the Big Bang supports an earlier proposal that water nanoclusters ejected from cosmic dust, produced by supernovae, may be a form of baryonic dark matter. They also function as dynamical Casimir cages that capture vacuum virtual photons and canc...

We consider the $f\left( Q \right) $-theory for the description of dark energy with a non-trivial connection defined in the non-coincident gauge. The resulting field equations form a two-scalar-field, quintom-like gravitational model. For the power-law model $f\left( Q \right) \simeq Q^{\frac{n}{n-1}}$, we construct an analytic expression for the d...

A bstract The Standard Model extended by a real scalar singlet S with an approximate ℤ 2 symmetry offers a minimal framework for realizing electroweak baryogenesis (EWBG) during a first-order electroweak phase transition. In this work, we explore a novel mechanism where spontaneous ℤ 2 breaking enables EWBG via domain walls separating two distinct...

We explore the cosmological implications of generalized entropic models within the framework of Gravity-Thermodynamics (GT) approaches. These models, characterized by three or four additional free parameters, are designed to capture deviations from the standard Bekenstein-Hawking entropy and can reproduce well-known entropic formulations, including...

We explore the speculative but intriguing prospect that dark matter (DM) interactions with ordinary matter can produce antimatter through intermediate production and decay of beauty (bottom) hadrons. In particular, we investigate processes in which dark matter annihilates or up scatters to produce bottom quarks, which hadronize into B-mesons or Λ b...

We study the $P$-wave single charmed baryons of the $SU(3)$ flavor $\bf\bar3_F$ within the framework of heavy quark effective theory. We systematically calculate their strong and radiative decay properties using the light-cone sum rule method. Besides the $\Lambda_c(2595)$, $\Lambda_c(2625)$, $\Xi_c(2790)$, and $\Xi_c(2815)$, our results suggest th...

We study the angular power spectrum of gravitational-wave and galaxy catalogs in tomographic redshift and distance bins as a probe of late-time cosmology, focusing specifically on next-generation ground-based interferometers in combination with the Euclid photometric survey. We assess the potential of this technique to constrain the Hubble constant...

In the theory with a Majorana fermion ( X ) coupled to quarklike fermions ( Q ) via a dimension-six four-fermion vector-vector interaction, we have computed in an earlier work the baryon asymmetry generated in the decay and scattering processes of the X with Q . In this work we consider such processes in the expanding early Universe, set up the Bol...

We investigate whether a violation of the distance duality relation (DDR), $D_L(z) = (1+z)^2 D_A(z)$, connecting the angular diameter and luminosity distances, can explain the Hubble tension and alter the evidence for dynamical dark energy in recent cosmological observations. We constrain five phenomenological parameterisations of DDR violation usi...

Muons are elementary particles and provide cleaner collision events that can explore higher energies compared to composite particles like protons. Muons are also far heavier than their electron cousins, meaning that they emit less synchrotron radiation that effectively limits the energies of circular electron-positron colliders. These characteristi...

We propose a theoretical model wherein a stable, self-gravitating object composed primarily of neutrinos-termed a neutrino-ball-simultaneously addresses three major open problems in modern cosmology and particle physics: the baryon asymmetry of the Universe (BAU), the nature of dark matter, and the origin of neutrino masses. Utilizing a framework b...

More and more excited baryons have been reported experimentally, but many properties are still unclear. This work attempts to simultaneously study the masses and strong decay widths of some singly heavy baryons, in order to provide possible quantum numbers for these states. The chiral quark model and the $^{3}P_{0}$ decay model are employed to calc...

We conduct an investigation on the spin 3 2 → 1 2 semileptonic weak transition of single heavy baryons for the exclusive decay Σ b * 0 → Σ c + ℓ ν ¯ ℓ in three possible lepton channels within the three point QCD sum rule method. We compute the responsible form factors of this semileptonic decay by incorporating both perturbative and nonperturbative...

We develop a generalization of low-mode averaging in which the number of low quark modes of the Dirac operator required for a constant variance reduction can be kept independent of the volume by exploiting their local coherence. Typically in lattice QCD simulations, the benefit of translation averaging quark propagators over the space-time volume i...

We present an analysis of DESI Data Release 1 (DR1) that incorporates Halo Occupation Distribution (HOD)-informed priors into Full-Shape (FS) modeling of the power spectrum based on cosmological perturbation theory (PT). By leveraging physical insights from the galaxy-halo connection, these HOD-informed priors on nuisance parameters substantially m...

This paper proposes a re-evaluation of the fundamental nature of nuclear forces by introducing the concept of the Deep Dirac Level (DDL) electron. Contrary to the conventional view where the neutron is treated as a fundamental particle composed of quarks (udd), we propose a model in which the neutron is a bound state of a proton and a DDL electron....

We present a new approach for understanding how galaxies lose or retain baryons by utilizing a pipeline of two machine learning methods applied the IllustrisTNG100 simulation. We employed a Random Forest Regressor and Explainable Boosting Machine (EBM) model to connect the retained baryon fraction of $\approx10^5$ simulated galaxies to their proper...

This paper extends our reformulation of Einstein's mass-energy equivalence from E = mc 2 to Et 2 = md 2 to explain the nature of antimatter. We demonstrate that interpreting spacetime as a "2+2" dimensional structure-with two rotational spatial dimensions and two temporal dimensions, one of which manifests as the perceived third spatial dimension-o...

Dark Matter (DM), although weakly interacting with baryonic matter, constitutes nearly 85% of the Universe's mass content. Traditional models suggest its influence is primarily gravitational and diffuse. However, this paper explores a speculative but theoretically grounded scenario wherein a cascade of dense DM clumps or exotic particles interacts...

We investigate the theoretical landscape in which Dark Matter (DM) interacts non-gravitationally with Standard Model (SM) matter. Although current astrophysical observations confirm the gravitational presence of DM, the nature of its interaction with baryonic matter remains elusive. This study explores several plausible outcomes of weak-scale or su...

High-velocity clouds (HVCs) are composed of neutral hydrogen (HI) moving at velocities that deviate from the general rotational motion of the Milky Way. Currently, the origins of the HVCs remain poorly known due to the difficulty in determining their distance and the lack of any other suitable identification. Here we report the detection of a compa...

We study the cosmological constraints of the time variation of the electron mass $m_e$ and the fine-structure constant $\alpha$, using data of cosmic microwave background, supernovae light curve and baryon acoustic oscillation (BAO) data including the recent DESI BAO DR2 measurements. The results are slightly depending on the BAO data set included...

We investigate the potential role of decaying hyper-magnetic fields during the electroweak epoch in generating the observed baryon asymmetry of the Universe (BAU). In the Standard Model, baryon number violation is mediated by sphaleron transitions, active at high temperatures. Simultaneously, the presence of long-range hypermagnetic fields, coupled...

This paper extends the reformulation of Einstein's mass-energy equivalence from E = mc 2 to Et 2 = md 2 to explain the baryon asymmetry of the universe. We demonstrate that interpreting spacetime as a "2+2" dimensional structure-with two rotational spatial dimensions and two temporal dimensions, one of which manifests as the perceived third spatial...

We study lattice two-color QCD with two flavors of staggered fermions at imaginary and real quark chemical potential μ q and T > T c . We employ various methods of extrapolation of the quark number density from imaginary to real quark chemical potentials μ q , including series expansions as well as analytic continuation based on phenomenological mo...

We investigate the particle production by the Nambu-Goldstone boson in the spontaneous baryogenesis scenario for large misalignment angles. Studying numerically the case of an arbitrary initial phase, we reproduce the cubic dependence on the initial value of the phase of baryon asymmetry in the case of small oscillations and present our results for...

Observations have largely ruled out macroscopic dark matter across a wide range of masses, leaving an experimentally interesting window in the asteroid-mass region. Yet, theoretical motivation for this mass window is still insufficient. We initiate a new pattern of nontopological solitons, where a charge asymmetry is inherited from baryogenesis and...

Leptogenesis provides an elegant mechanism to explain the observed baryon asymmetry of the Universe (BAU), yet its experimental verification remains challenging due to requirements of either extremely heavy right-handed neutrinos or precisely fine-tuned mass splittings. We adapt a solution by introducing an extra scalar field that significantly enh...

That neutrinos carry a nonvanishing rest mass is evidence of physics beyond the Standard Model of elementary particles. Their absolute mass holds relevance in fields from particle physics to cosmology. We report on the search for the effective electron antineutrino mass with the KATRIN experiment. KATRIN performs precision spectroscopy of the triti...

The rare hyperon decay $\Sigma^+ \to p \ell^+ \ell^-$ is a flavour-changing neutral current process mediated by an $s \to d$ transition that occurs only at loop level within the Standard Model. Consequently, this decay is highly suppressed, making it a promising avenue for probing potential new physics. While phenomenological calculations have made...

We propose that cosmic expansion, traditionally modeled as spatial stretching in the Friedmann-Lemaître-Robertson-Walker (FLRW) metric, reflects the continuous creation of spacetime volume driven by a scalar field ϕ. Distinct from quintessence, ϕ couples to vacuum energy with a theoretically motivated parameter, generating new spatial manifold. Wit...

In this paper, we investigate gravitational collapse scenarios involving baryonic matter transitioning into quark-gluon plasma under extreme astrophysical conditions, focusing on their implications for the formation of regular black holes. Standard gravitational collapse models inevitably predict central singularities, highlighting the limitations...

We explore dark matter genesis beyond the WIMP paradigm, focusing on the mechanism of conversion-driven freeze-out. This mechanism enables the thermalization of dark matter despite its very weak couplings. While the scenario evades conventional WIMP searches, it predicts novel signatures of long-lived particles at colliders, making it a prime targe...

Affleck-Dine (AD) baryogenesis can produce the baryon asymmetry of the Universe through the $CP$-violating dynamics of AD field. The field generally fragments into Q-balls, whose rapid decay induces enhanced gravitational waves. In this Letter, we investigate the anisotropies in this gravitational wave background as a new essential observable for A...

We study the temperature fluctuations in hot quantum chromodynamics (QCD) matter. A new thermodynamic state function is introduced to describe the mean transverse momentum fluctuations of charged particles in heavy-ion collisions, enabling analytic expressions for the temperature fluctuations of different orders. This formalism is applied to the QC...

We present a joint analysis of the cosmic microwave background (CMB) lensing power spectra measured from the Data Release 6 of the Atacama Cosmology Telescope (ACT) and PR4, cross-correlations between the ACT and lensing reconstruction and galaxy clustering from unWISE, and the unWISE clustering auto-spectrum. We obtain 1.5% constraints on the matt...

CP invariance is a very attractive solution to the strong CP problem in QCD. This solution requires the vanishing ${\rm arg}\,[{\rm det}\, M_d\, {\rm det} M_u]$, where the $M_d$ and $M_u$ are the mass matrices for the down- and up-type quarks. It happens if we have several zeros in the quark mass matrices. We proceed a systematic construction, in t...

Fast Radio Bursts (FRBs) have emerged as powerful probes in cosmology. An optimized method for extracting the cosmic baryon density from localized FRBs, based on maximizing the joint likelihood function of the extragalactic dispersion measure ($\mathrm{DM}_{\mathrm{ext}}$), was proposed by Macquart et al. [Nature 581, 391 (2020)]. In this Letter, w...

We study the nonperturbative properties of the nucleon’s chiral-odd generalized parton distributions (transversity GPDs) in the large- N c limit of QCD. This includes the parametric ordering of the spin-flavor components, the polynomiality property of the moments, and the sum rules connecting the GPDs with the tensor form factors. A multipole expan...

In this paper, written in memory of Alexei Starobinsky, we discuss the observational viability of the Ph-$\Lambda_{\rm s}$CDM model - a dynamical dark energy scenario based on a phantom scalar field undergoing an anti-de Sitter (AdS) to de Sitter (dS) transition - and revisit the Sahni-Shtanov braneworld model in light of updated BAO Ly-$\alpha$ da...

Observations of massive pulsars suggest that the central density of neutron stars can exceed several times the nuclear saturation density, which is a favourable environment for the appearance of exotic states such as strange and non-strange baryons, meson condensates, and deconfined quark matter. The antikaon condensate is the most studied and plau...

We extend the derivation of second-order relativistic viscous hydrodynamics to incorporate the effects of baryon current, a nonvanishing chemical potential, and a realistic equation of state. Starting from a microscopic quantum theory, we employ a quasiparticle approximation to describe the evolution of hydrodynamic degrees of freedom and establish...

A class of extensions to the Standard Model adds hypothetical long-lived particles (LLPs) that have mass- or kinetic-mixing with neutral mesons, such as pions or rho mesons. The mixing can contribute significantly to the production of LLPs at proton accelerator experiments, and no consistent description of these production modes exists in the liter...

We calculate the masses and residues of triply heavy baryons with spin-3/2, including $\Omega^*_{ccc}$, $\Omega^*_{ccb}$, $\Omega^*_{bbc}$ and $\Omega^*_{bbb}$, using the QCD sum rules method. Our calculations primarily focus on obtaining the masses of the first three resonances, that is, the ground state (1S), the first orbital excited state (1P),...

We study the impact of molecular (H 2 ) and atomic (H i ) hydrogen cooling on the galaxy formation threshold. We calculate the fraction of dark matter (DM) halos that exceeds a critical mass required for star formation, M crit ( z ), as a function of their peak mass. By convolving analytic halo mass accretion histories (MAHs) with models for M crit...

The first observation of the $\Sigma^+ \to p \mu^+ \mu^-$ decay is reported with high significance using proton-proton collision data, corresponding to an integrated luminosity of $5.4\,\rm{fb}^{-1}$, collected with the LHCb detector at a centre-of-mass energy of 13~TeV. A yield of $237\pm 16$ $\Sigma^+ \to p \mu^+ \mu^-$ decays is obtained, where...

We propose a novel mechanism to generate primordial magnetic fields (PMFs) strong enough to explain the observed cosmic magnetic fields. We employ a scalar field charged under U(1) gauge symmetry with a non-trivial VEV to provide an effective mass term to the EM field and thus break its conformal invariance. The primordial magneto-genesis takes pla...

We study the P -wave bottom baryons of the S U ( 3 ) flavor antitriplet and systematically calculate their strong decay properties, including their D -wave decays into ground-state bottom baryons with light pseudoscalar mesons and S -wave decays into ground-state bottom baryons with light vector mesons. Together with [W. H. Tan , Predicted Ξ b ( 60...

In this article, we investigate the gravitational baryogenesis mechanism in the framework of Extended Proca-Nuevo (EPN) gravity, a theory where a massive vector field is non-minimally coupled to the curvature. This analysis is carried out for an early universe, encompassing three separate cosmological scenarios defined by power-law, exponential, an...

We estimate the global signal in the redshifted hyperfine structure line 21 cm of hydrogen atoms formed during the dark ages and cosmic dawn epochs. The evolution of the brightness temperature in this line was computed to study its dependence on the physical conditions in the intergalactic medium. We show that the profile of this line crucially dep...

A bstract We present the production systematics of open charm hadron yields in high-energy collisions and their description based on the Statistical Hadronization Model of charm (SHMc). The rapidity density of D ⁰ , D ⁺ , D *+ , $$ {D}_s^{+} $$ D s + mesons and $$ {\Lambda}_c^{+} $$ Λ c + baryons in heavy ion and proton-proton collisions is analyze...

We examine the new physics sensitivity of the rare decay Λ b → Λ ν ν ¯ , which can be accessible at future Z -pole machines like Future Circular Collider and Circular Electron Positron Collider. We find that the longitudinal polarization of Λ b baryons produced in Z decays introduces a novel observable, the forward-backward asymmetry A FB ↑ in the...

The ηCDM framework by [1] is a new cosmological model aimed to cure some drawbacks of the standard ΛCDM scenario, such as the origin of the accelerated expansion at late times, the cosmic tensions, and the violation of the cosmological principle due to the progressive development of inhomogeneous/anisotropic conditions in the Universe during struct...

Based on the experimental measurements of the electron-positron annihilation reactions into a baryon ($B$) and anti-baryon ($\bar{B}$) pair, the electromagnetic form factors of hyperons in the time-like region can be investigated within the vector meson dominance model. The theoretical model parameters are determined by fitting them to the total cr...

The integrity of the universe thesis is the most generalized form of relativity principle. It agrees with the biological principle that no part of the human body is unrelated to the integrity of the organism's function. The advances in modern science confirm the widely accepted assumption that space-time symmetry and relativity (STSR) are the commo...

A search for the doubly-charmed-baryon decay ${\it \Xi}_{cc}^{++}\to{\it \Xi}_{c}^{0}(\to p K^{-}K^{-}\pi^{+})\pi^{+}\pi^{+}$ is performed using proton-proton collision data collected by the LHCb experiment at a centre-of-mass energy of 13 $\text{TeV}$ and corresponding to an integrated luminosity of 5.4 $\text{fb}^{-1}$. A significant structure co...

We present the DESI 2024 galaxy and quasar baryon acoustic oscillations (BAO) measurements using over 5.7 million unique galaxy and quasar redshifts in the range 0.1 < z < 2.1. Divided by tracer type, we utilize 300,017 galaxies from the magnitude-limited Bright Galaxy Survey with 0.1 < z < 0.4, 2,138,600 Luminous Red Galaxies with 0.4 < z < 1.1, 2...

In the present paper, we focus on the process where two neutrons are allowed to transit into two dark photons ($nn \rightarrow VV$) via new Higgs-like scalar bosons. This process violates baryon number by two units ($|\Delta \mathcal{B}| = 2$). Since neutron stars contain a large number of neutrons, the $nn \rightarrow VV$ process can be greatly en...

We study a modified version of the Standard Model that includes a scalar doublet and two right-handed neutrinos, forming the neutrinophillic two higgs doublet ($\nu\text{2HDM}$) framework. For $v_2 << v_1$, this model operates at a TeV scale, bringing the RHNs within experimental reach. To further enhance its predictive power, we introduce an $S_4...

This is a truncated archive of suppressed science. It omits all reference to the topic of suppressed vaccine science. The subjects to be covered include two attached approaches to the cure for cancer, informational pharmacology, the existence and weaponization of negative energy, scalar wave physics and the suppressed science of Ruggero Santilli, i...

A new method was proposed recently to investigate the location of the putative critical point of strongly interacting matter, governed by quantum chromodynamics. By approximating contours of constant entropy density at finite baryon chemical potential, the conditions for the existence of a critical point are solved. In this work, we analyze this me...

In this study, we present constraints on the parameters of three well-known $f(R)$ gravity models, viz. (i) Hu-Sawicki, (ii) Starobinsky, and (iii) ArcTanh by using a joint analysis of recent cosmological observations. We drive the analytical approximations for the Hubble parameter, $H(z)$, and cosmological distances in terms of the Hubble constant...