# European Physical Journal C Impact Factor & Information

Publisher: Springer Verlag (Germany)

## Journal description

The European Physical Journal C Particles and Fields A merger of Il Nuovo Cimento A and Zeitschrift für Physik C The physics of elementary particles lies at the frontier of our understanding of nature. The journal EPJ C publishes most recent experimental and theoretical results obtained in this field. Experimental results come from the high energy physics laboratories such as CERN (Switzerland) DESY (Germany) SLAC and Fermilab (both USA) and KEK (Japan) with their accelerators and experimentral facilities and also from nonaccelerator laboratories such as Kamioka (Japan) Gran-Sasso (Italy) and others. Theoretical topics include studies and tests of the Standard Model computer simulations of Quantum Chromodynamics search for the Higgs particle and supersymmetry and the investigation of new ideas beyond the standard model. Experimental Physics e + e - experiments Lepton nucleon scattering Hadron hadron scattering B physics Neutrino physics Non-accelerator experiments High-energy nuclear reactions Theoretical Physics The standard model: Electroweak interactions and QCD Nonperturbative strong interactions Soft hadron physics Lattice field theory High temperature QCD and heavy ion physics Beyond the standard model Astroparticle physics and cosmology Quantum field theory

## Impact Factor Rankings

2015 Impact Factor Available summer 2015 5.436 5.247 3.631 3.248 2.746 2.805 3.255 3.251 3.209 3.486 3.58 6.162 5.194 5.408 6.872

## Impact factor over time

Impact factor
.
Year

5-year impact 3.60 4.00 2.22 0.05 1.52 European Physical Journal C (EPJ C), The - Particles and Fields website European physical journal., Particles and fields, EPJ., Eur. phys. j 1434-6044 39166324 Document, Periodical, Internet resource Internet Resource, Computer File, Journal / Magazine / Newspaper

## Publisher details

• Pre-print
• Author can archive a pre-print version
• Post-print
• Author can archive a post-print version
• Conditions
• On open access repositories
• Published source must be acknowledged
• Publisher's version/PDF may be used
• Applies to Journal of High Energy Physics and European Physical Journal C: Particles and Fields
• All titles are open access journals
• Titles are funded by SCOAP3
• This policy is an exception to the default policies of 'Springer Verlag (Germany)'
• Classification
​ green

## Publications in this journal

• ##### Article: On the possibility to detect the Higgs decay $$H\rightarrow b\bar{b}$$ H → b b ¯ in the associated $$Z+ b\bar{b}$$ Z + b b ¯ production at the LHC
European Physical Journal C 05/2015; 75(5). DOI:10.1140/epjc/s10052-015-3419-4
• ##### Article: Hamiltonian analysis of interacting fluids
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ABSTRACT: Ideal fluid dynamics is studied as a relativistic field theory with particular importance on its hamiltonian structure. The Schwinger condition, whose integrated version yields the stress tensor conservation, is explicitly verified both in equal-time and light-cone coordinate systems. We also consider the hamiltonian formulation of fluids interacting with an external gauge field. The complementary roles of the canonical(Noether) stress tensor and the symmetric one obtained by metric variation are discussed. Finally, a non-relativistic reduction of the system in light-cone coordinates has been carried out which reproduces results found earlier in the literature.
European Physical Journal C 05/2015; 75(5). DOI:10.1140/epjc/s10052-015-3412-y
• ##### Article: Semileptonic $$B_{s} \rightarrow D_{s2}^{*}(2573)\ell \bar{\nu }_{\ell }$$ B s → D s 2 ∗ ( 2573 ) ℓ ν ¯ ℓ transition in QCD
European Physical Journal C 05/2015; 75(5). DOI:10.1140/epjc/s10052-015-3402-0
• ##### Article: Radially excited states of $$\eta _c$$ η c
European Physical Journal C 05/2015; 75(5). DOI:10.1140/epjc/s10052-015-3418-5
• ##### Article: Twelve-dimensional effective action and $$T$$ T -duality
European Physical Journal C 05/2015; 75(5). DOI:10.1140/epjc/s10052-015-3423-8
• ##### Article: Hadronic decays of the highly excited $$2D$$ 2 D $$D_s$$ D s resonances
European Physical Journal C 05/2015; 75(5). DOI:10.1140/epjc/s10052-015-3400-2
• Source
##### Article: Thin accretion disks around cold Bose-Einstein Condensate stars
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ABSTRACT: Due to their superfluid properties some compact astrophysical objects, like neutron or quark stars, may contain a significant part of their matter in the form of a Bose-Einstein Condensate. Observationally distinguishing between neutron/quark stars and Bose-Einstein Condensate stars is a major challenge for this latter theoretical model. An observational possibility of indirectly distinguishing Bose-Einstein Condensate stars from neutron/quark stars is through the study of the thin accretion disks around compact general relativistic objects. In the present paper, we perform a detailed comparative study of the electromagnetic and thermodynamic properties of the thin accretion disks around rapidly rotating Bose-Einstein Condensate stars, neutron stars and quark stars, respectively. Due to the differences in the exterior geometry, the thermodynamic and electromagnetic properties of the disks (energy flux, temperature distribution, equilibrium radiation spectrum and efficiency of energy conversion) are different for these classes of compact objects. Hence in this preliminary study we have pointed out some astrophysical signatures that may allow to observationally discriminate between Bose-Einstein Condensate stars and neutron/quark stars, respectively.
European Physical Journal C 04/2015; 75(5). DOI:10.1140/epjc/s10052-015-3428-3
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##### Article: Numerical evidence for universality in the excited instability spectrum of magnetically charged Reissner-Nordstr\"om black holes
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ABSTRACT: It is well-known that the SU(2) Reissner-Nordstr\"om black-hole solutions of the Einstein-Yang-Mills theory are characterized by an infinite set of unstable (imaginary) eigenvalues $\{\omega_n(T_{\text{BH}})\}_{n=0}^{n=\infty}$ (here $T_{\text{BH}}$ is the black-hole temperature). In this paper we analyze the excited instability spectrum of these magnetically charged black holes. The numerical results suggest the existence of a universal behavior for these black-hole excited eigenvalues. In particular, we show that unstable eigenvalues in the regime $\omega_n\ll T_{\text{BH}}$ are characterized, to a very good degree of accuracy, by the simple universal relation $\omega_n(r_+-r_-)={\text{constant}}$, where $r_{\pm}$ are the horizon radii of the black hole.
European Physical Journal C 04/2015; 75(5). DOI:10.1140/epjc/s10052-015-3414-9
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##### Article: On the (1+3) threading of spacetime with respect to an arbitrary timelike vector field
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ABSTRACT: We develop a new approach on the (1+3) threading of spacetime $(M, g)$ with respect to a congruence of curves defined by an arbitrary timelike vector field. The study is based on spatial tensor fields and on the Riemannian spatial connection $\nabla^{\star}$, which behave as $3D$ geometric objects. We obtain new formulas for local components of the Ricci tensor field of $(M, g)$ with respect to the threading frame field, in terms of the Ricci tensor field of $\nabla^{\star}$ and of kinematic quantities. Also, new expressions for time covariant derivatives of kinematic quantities are stated. In particular, a new form of Raychaudhuri's equation enables us to prove Lemma 6.2, which completes a well known lemma used in the proof of Penrose-Hawking singularity theorems.Finally, we apply the new $(1+3)$ formalism to the study of the dynamics of a Kerr-Newman black hole.
European Physical Journal C 04/2015; 75(4). DOI:10.1140/epjc/s10052-015-3390-0
• ##### Article: On some aspects of isospin breaking in the decay $$K^\pm \rightarrow \pi ^0 \pi ^0 e^\pm \mathop {\nu _e}\limits ^{_{(-)}}$$ K ± → π 0 π 0 e ± ν e ( - )
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ABSTRACT: Two aspects of isospin breaking in the decay $$K^\pm \rightarrow \pi ^0 \pi ^0 e^\pm \mathop {\nu _e}\limits ^{_{(-)}}$$ are studied and discussed. The first addresses the possible influence of the phenomenological description of the unitarity cusp on the extraction of the normalization of the form factor from data. Using the scalar form factor of the pion as a theoretical laboratory, we find that this determination is robust under variations of the phenomenological parameterizations of the form factor. The second aspect concerns the issue of radiative corrections. We compute the radiative corrections to the total decay rate for $$K^\pm \rightarrow \pi ^0 \pi ^0 e^\pm \mathop {\nu _e}\limits ^{_{(-)}}$$ in a setting that allows comparison with the way radiative corrections were handled in the channel $$K^\pm \rightarrow \pi ^+ \pi ^- e^\pm \mathop {\nu _e}\limits ^{_{(-)}}$$ . We find that, once radiative corrections are included, the normalizations of the form factor as determined experimentally from data in the two decay channels come to a better agreement. The remaining discrepancy can easily be accounted for by other isospin-breaking corrections, mainly those due to the difference between the masses of the up and down quarks.
European Physical Journal C 04/2015; 75(4). DOI:10.1140/epjc/s10052-015-3359-z
• ##### Article: Analysis of the semileptonic $$B_c\rightarrow D_1^0$$ B c → D 1 0 transition in QCD sum rules and HQET
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ABSTRACT: We investigate the structure of the $$D_{1}^0(2420[2430])(J^P=1^+)$$ mesons via analyzing the semileptonic $$B_{c}\rightarrow D_{1}^0 l\nu$$ transition in the frame work of the three-point QCD sum rules and the heavy-quark effective theory. We consider the $$D_{1}^0$$ meson in three ways: as a pure $$|c\bar{u}\rangle$$ state, as a mixture of the two $$|^3P_1\rangle$$ and $$|^1P_1\rangle$$ states with a mixing angle $$\theta$$ , and as a combination of the two mentioned states with mixing angle $$\theta =35.3^\circ$$ in the heavy-quark limit. Taking into account the gluon condensate contributions, the relevant form factors are obtained for the three above conditions. These form factors are numerically calculated for $$|c\bar{u}\rangle$$ and the heavy-quark limit cases. The obtained results for the form factors are used to evaluate the decay rates and the branching ratios. Also for mixed states, all of the mentioned physical quantities are plotted with respect to the unknown mixing angle $$\theta$$ .
European Physical Journal C 04/2015; 75(4). DOI:10.1140/epjc/s10052-015-3382-0
• ##### Article: A dispersive treatment of $$K_{\ell 4}$$ K ℓ 4 decays
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ABSTRACT: $$K_{\ell 4}$$ decays have several features of interest: they allow an accurate measurement of $$\pi \pi$$ -scattering lengths; they provide the best source for the determination of some low-energy constants of $$\chi$$ PT; one form factor is directly related to the chiral anomaly, which can be measured here. We present a dispersive treatment of $$K_{\ell 4}$$ decays that provides a resummation of $$\pi \pi$$ - and $$K\pi$$ -rescattering effects. The free parameters of the dispersion relation are fitted to the data of the high-statistics experiments E865 and NA48/2. The matching to $$\chi$$ PT at NLO and NNLO enables us to determine the LECs $$L_1^r$$ , $$L_2^r$$ and $$L_3^r$$ . With recently published data from NA48/2, the LEC $$L_9^r$$ can be determined as well. In contrast to a pure chiral treatment, the dispersion relation describes the observed curvature of one of the form factors, which we understand as a rescattering effect beyond NNLO.
European Physical Journal C 04/2015; 75(4). DOI:10.1140/epjc/s10052-015-3357-1