European Physical Journal C Impact Factor & Information
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) GranSasso (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 Nonaccelerator experiments Highenergy 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
Current impact factor: 5.44
Impact Factor Rankings
2015 Impact Factor  Available summer 2015 

2013 / 2014 Impact Factor  5.436 
2012 Impact Factor  5.247 
2011 Impact Factor  3.631 
2010 Impact Factor  3.248 
2009 Impact Factor  2.746 
2008 Impact Factor  2.805 
2007 Impact Factor  3.255 
2006 Impact Factor  3.251 
2005 Impact Factor  3.209 
2004 Impact Factor  3.486 
2003 Impact Factor  3.58 
2002 Impact Factor  6.162 
2001 Impact Factor  5.194 
2000 Impact Factor  5.408 
1999 Impact Factor  6.872 
1998 Impact Factor 
Impact factor over time
Additional details
5year impact  3.60 

Cited halflife  4.00 
Immediacy index  2.22 
Eigenfactor  0.05 
Article influence  1.52 
Website  European Physical Journal C (EPJ C), The  Particles and Fields website 
Other titles  European physical journal., Particles and fields, EPJ., Eur. phys. j 
ISSN  14346044 
OCLC  39166324 
Material type  Document, Periodical, Internet resource 
Document type  Internet Resource, Computer File, Journal / Magazine / Newspaper 
Publisher details

Preprint
 Author can archive a preprint version

Postprint
 Author can archive a postprint version

Conditions
 On open access repositories
 Creative Commons Attribution License
 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

European Physical Journal C 05/2015; 75(5). DOI:10.1140/epjc/s1005201534194

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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 equaltime and lightcone 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 nonrelativistic reduction of the system in lightcone 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/s100520153412y 
European Physical Journal C 05/2015; 75(5). DOI:10.1140/epjc/s1005201534020

European Physical Journal C 05/2015; 75(5). DOI:10.1140/epjc/s1005201534185

European Physical Journal C 05/2015; 75(5). DOI:10.1140/epjc/s1005201534238

European Physical Journal C 05/2015; 75(5). DOI:10.1140/epjc/s1005201534002

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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 BoseEinstein Condensate. Observationally distinguishing between neutron/quark stars and BoseEinstein Condensate stars is a major challenge for this latter theoretical model. An observational possibility of indirectly distinguishing BoseEinstein 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 BoseEinstein 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 BoseEinstein Condensate stars and neutron/quark stars, respectively.European Physical Journal C 04/2015; 75(5). DOI:10.1140/epjc/s1005201534283 
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ABSTRACT: It is wellknown that the SU(2) ReissnerNordstr\"om blackhole solutions of the EinsteinYangMills 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 blackhole 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 blackhole 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/s1005201534149 
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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 PenroseHawking singularity theorems.Finally, we apply the new $(1+3)$ formalism to the study of the dynamics of a KerrNewman black hole.European Physical Journal C 04/2015; 75(4). DOI:10.1140/epjc/s1005201533900 
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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 isospinbreaking 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/s100520153359z 
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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 threepoint QCD sum rules and the heavyquark 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 heavyquark 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 heavyquark 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/s1005201533820 
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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 lowenergy 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 highstatistics 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/s1005201533571
Data provided are for informational purposes only. Although carefully collected, accuracy cannot be guaranteed. The impact factor represents a rough estimation of the journal's impact factor and does not reflect the actual current impact factor. Publisher conditions are provided by RoMEO. Differing provisions from the publisher's actual policy or licence agreement may be applicable.