Pramana (PRAMANA-J PHYS)

Publisher: Indian Academy of Sciences; Indian National Science Academy; Indian Physics Association, Indian Academy of Sciences

Journal description

Pramana - Journal of Physics is a monthly research journal in English published by the Indian Academy of Sciences in collaboration with Indian National Science Academy and Indian Physics Association. The journal publishes refereed papers covering current research in Physics, both original contributions - research papers, brief reports or rapid communications - and invited reviews. Pramana also publishes special issues devoted to advances in specific areas of Physics and proceedings of select high quality conferences.

Current impact factor: 0.72

Impact Factor Rankings

2015 Impact Factor Available summer 2015
2013 / 2014 Impact Factor 0.72
2012 Impact Factor 0.562
2011 Impact Factor 0.575
2010 Impact Factor 0.561
2009 Impact Factor 0.349
2008 Impact Factor 0.274
2007 Impact Factor 0.383
2006 Impact Factor 0.417
2005 Impact Factor 0.38
2004 Impact Factor 0.301
2003 Impact Factor 0.333
2002 Impact Factor 0.324
2001 Impact Factor 0.283
2000 Impact Factor 0.314
1999 Impact Factor 0.278
1998 Impact Factor 0.284
1997 Impact Factor 0.34
1996 Impact Factor 0.354
1995 Impact Factor 0.349
1994 Impact Factor 0.345
1993 Impact Factor 0.383
1992 Impact Factor 0.39

Impact factor over time

Impact factor
Year

Additional details

5-year impact 0.49
Cited half-life 7.90
Immediacy index 0.10
Eigenfactor 0.00
Article influence 0.17
Website Pramana - Journal of Physics website
Other titles Pramāṇa (Online), Epramana, Pramāṇa, journal of physics
ISSN 0304-4289
OCLC 51300167
Material type Document, Periodical, Internet resource
Document type Internet Resource, Computer File, Journal / Magazine / Newspaper

Publisher details

Indian Academy of Sciences

  • Pre-print
    • Author can archive a pre-print version
  • Post-print
    • Author cannot archive a post-print version
  • Conditions
    • Publisher's version/PDF must be used
    • On author's personal website and/or institutional repository
    • All titles are open access journals
  • Classification
    ​ green

Publications in this journal

  • [Show abstract] [Hide abstract]
    ABSTRACT: The aim of this paper is to extend the applications of (\(G^{\prime }/G\))-expansion method to solve a generalized sinh-Gordon equation. In fact, the binary (\(G^{\prime }/G\))-expansion method is introduced for finding different new exact solutions. It is shown that this method is a powerful mathematical tool for solving nonlinear evolution equations with time-dependent coefficients in mathematical physics.
    Pramana 06/2015; DOI:10.1007/s12043-014-0896-1
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    ABSTRACT: The presence of trapped ions in electron storage rings causes considerable degradation in the performances of the beam, such as increase in beam size, reduction in beam lifetime, shifting of betatron tune, beam instabilities etc. This paper discusses the effects of ion trapping and its mitigation in Indus-2 electron storage ring. Ion-induced instability generating partial beam loss is one of the main barriers in higher beam current accumulation in any electron storage ring. Though there are several techniques to clear the ions from the electron beam path, in Indus-2, it is addressed mainly by filling the storage ring in partial bunch filling pattern. In order to improve the electron beam performance and to mitigate the ion-related problem, a suitable bunch filling pattern has been determined. The theoretical prediction and the result of optimal bunch filling pattern are presented in this paper.
    Pramana 06/2015; DOI:10.1007/s12043-014-0919-y
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    ABSTRACT: We examine the dynamical evolution of wave packets in a cubical billiard where three quantum numbers (n x , n y , n z ) determine its energy spectrum and consequently its dynamical behaviour. We have constructed the wave packet in the cubical billiard and have observed its time evolution for various closed orbits. The closed orbits are possible for certain specific values of quantum numbers (n x , n y , n z ) and initial momenta (k x , k y , k z ). We observe that a cubical billiard exhibits degenerate energy levels and the path lengths of the closed orbits for these degenerate energy levels are identical. In spite of the identical path lengths, the shapes of the closed orbits for degenerate levels are different and depend upon angles 𝜃 and ϕ which we term as the sweep and the elevation angles, respectively. These degenerate levels owe their origin to the symmetries prevailing in the cubical billiard and these levels disappear completely or partially for a parallelepiped billiard as the symmetry breaks due to commensurate or incommensurate ratio of sides.
    Pramana 06/2015; DOI:10.1007/s12043-015-0959-y
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    ABSTRACT: The confinement effects of electrons in ultrathin films and nanowires grown on metallic and semiconducting substrates investigated using band mapping of their electronic structures using angle-resolved photoemission spectroscopy is discussed here. It has been shown that finite electron reflectivity at the interface is sufficient to sustain the formation of quantum well states and weak quantum well resonance states even in closely matched metals. The expected parabolic dispersion of sp-derived quantum well states for free-standing layers undergoes deviations from parabolic behaviour and modifications due to the underlying substrate bands, suggesting the effects of strong hybridization between the quantum well states and the substrate bands. Electron confinement effects in low dimensions as observed from the dispersionless features in the band structures are also discussed.
    Pramana 06/2015; DOI:10.1007/s12043-015-0999-3
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    ABSTRACT: In this paper, a hierarchy of nonisospectral equations with variable coefficients is derived from the compatibility condition of Toda spectral problem and its time evolution. In order to solve the derived Toda lattice hierarchy, the inverse scattering transformation is utilized. As a result, new and more general exact solutions are obtained. It is shown that the inverse scattering transformation can be generalized to solve some other nonisospectral lattice hierarchies with variable coefficients.
    Pramana 05/2015; DOI:10.1007/s12043-014-0918-z
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    ABSTRACT: Plasma heating with the fast magnetosonic waves in the ion cyclotron range of frequencies (ICRF) is one of the auxiliary heating schemes of Aditya tokamak. Numerical simulation of second-harmonic resonance heating scenarios in low-temperature, low-density Aditya plasma has been carried out for fast magnetosonic wave absorption in ICRF range, using full-wave ion cyclotron heating code TORIC combined with Fokker-Planck quasilinear solver SSFPQL and the results are explained. In such low-temperature, low-density plasma, ion absorption for second-harmonic resonance heating is less but significant amount of direct electron heating is observed.
    Pramana 05/2015; DOI:10.1007/s12043-014-0908-1
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    ABSTRACT: A brief overview of the QCD phase diagram at nonzero temperature and density is provided. It is explained why standard lattice QCD techniques are not immediately applicable for its determination, due to the sign problem. A selection of recent lattice approaches that attempt to evade the sign problem are then discussed and classified according to the underlying principle: constrained simulations (density of states, histograms), holomorphicity (complex Langevin, Lefschetz thimbles), partial summations (clusters, subsets, bags) and change in integration order (strong coupling, dual formulations).
    Pramana 05/2015; 84(5):787-799. DOI:10.1007/s12043-015-0981-0
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    ABSTRACT: We review the transport models that are widely used to study the properties of the quark-gluon plasma formed in relativistic heavy-ion collisions at RHIC and LHC. We show that transport model analysis of two important and complementary observables, the anisotropic flow of bulk hadrons and suppression of hadron yields at high transverse momentum, provide exciting new information on the properties of the plasma formed.
    Pramana 05/2015; 84(5). DOI:10.1007/s12043-015-0976-x
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    ABSTRACT: This review summarizes recent discoveries in high-energy proton + proton and proton + nucleus collisions, with particular attention on the observation of long-range azimuthal correlations in high multiplicity collisions. These correlations, which resemble those seen in ultra-relativistic nucleus-nucleus collisions, provide a unique window into the physics of the very early collision stage in high energy nuclear interactions. Here we present a compilation of the most important experimental results and briefly discuss successes and challenges for a selection of theoretical approaches.
    Pramana 05/2015; 84(5):731-746. DOI:10.1007/s12043-015-0985-9
  • Pramana 05/2015; DOI:10.1007/s12043-015-0944-5
  • Pramana 05/2015; 84(5):669-669. DOI:10.1007/s12043-015-0987-7
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    ABSTRACT: The nuclear matter under extreme conditions of temperatures (T) and baryonic densities ( n B) undergoes a phase transition to quark gluon plasma (QGP). It is expected that such extreme conditions can be achieved by colliding nuclei at ultrarelativistic energies. In the present review, the suitability of photons and dileptons as diagnostic tools of QGP has been discussed. The photon and dilepton spectra originating from heavy-ion collisions at LHC energies have been explicitly displayed in this article. Results from SPS and RHIC have been discussed adequately with appropriate references. The role of single electron spectra originating from the decays of heavy flavoured mesons on QGP detection has also been discussed briefly.
    Pramana 05/2015; 84(5):861-880. DOI:10.1007/s12043-015-0978-8
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    ABSTRACT: We briefly review recent advances in the subject of hadron production in relativistic heavy-ion collisions. We focus on the issues of chemical freeze-out, chemical equilibration and the role of post-hadronization inelastic collisions. From the observations collected in elementary and heavy-ion collisions, a picture emerges in which hadrons are born in chemical equilibrium at hadronization, thereafter undergoing inelastic and elastic collisions whose impact on the primordial distribution depends on the system size.
    Pramana 05/2015; 84(5). DOI:10.1007/s12043-015-0977-9
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    ABSTRACT: By exploiting supersymmetry and factorization method, higher partial wave nucleon–nucleon potentials (� = 1, 2, 3) for a few selected triplet and singlet states are generated from the ground-state interaction and wave function. The nuclear Hulthen potential and the corresponding wave function with the parameters of Arnold and MacKellar which fit the deuteron binding energy are used as the starting point of our calculation. The scattering phase shifts are computed for the constructed potentials using phase function method to examine the merit of our approach to the problem.
    Pramana 04/2015; 84(04):555-567. DOI:10.1007/s12043-014-0845-z;
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    ABSTRACT: The nonlinear wave modulation of planar and non-planar (cylindrical and spherical) dust-acoustic waves (DAW) propagating in dusty plasmas, in the presence of non-extensive distributions for ions and electrons is investigated. By employing multiple scales technique, a cylindrically and spherically modified nonlinear Schrödinger equation (NLSE) is derived. The presence of hot non-extensive q-distributed ions and electron is shown to influence the modulational instability (MI) of the waves. It is shown that the properties of the MI of DAW in cylindrical and spherical geometry differ from those in a planar one-dimensional geometry. Furthermore, it is observed that the non-extensive distributed ions have more effect on the MI of the DAW than electrons. Also, it is found that there is a MI period for cylindrical and spherical wave modulations, which does not exist in the one-dimensional case.
    Pramana 04/2015; 84(4). DOI:10.1007/s12043-014-0866-7
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    ABSTRACT: An analysis of the data based on 924 inelastic interaction events induced by 28Si nuclei in a nuclear emulsion is presented. The nuclear fragmentation process is studied by analysing the total charge ( Q) distribution of the projectile spectators for different emulsion target groups along with the comparison of Monte Carlo Glauber model results. Probability distributions for total disintegrated events as a function of different projectile masses are shown and compared with cascade evaporation model results at same energy per nucleon. Further, mean multiplicities of different charged secondaries for different classes of events are presented and for each event, variation of mean multiplicities as a function of total charge ( Q) is also presented. The pseudorapidity distributions and normalized pseudorapidity distributions of the produced charged particles in nucleus–nucleus collisions at 3.7 A GeV are analysed for total disintegration (TD) as well as minimum-bias events.
    Pramana 04/2015; 84(4):591-608. DOI:10.1007/s12043-014-0849-8
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    ABSTRACT: In this paper, one of the newest analytical methods, new homotopy perturbation method (NHPM), is considered to solve thermoelasticity equations. Results obtained by NHPM, which does not need small parameters, are compared with the numerical results and a very good agreement is found. This method provides a convenient way to control the convergence of approximation series and adjust convergence regions when necessary. The results reveal that the proposed method is explicit, effective and easy to use.
    Pramana 03/2015; DOI:10.1007/s12043-014-0899-y