Results 91 to 100 of about 200,466 (211)

Azimuthal anisotropy scaling functions for identified particle and anti-particle species across beam energies: Insights into baryon junction effects

Physics Letters B
Azimuthal anisotropy scaling functions are constructed from species-resolved anisotropy measurements in Pb+Pb (sNN=2.76, 5.02 TeV) and Au+Au (sNN=7.7–200 GeV) collisions to probe baryon transport and medium response at finite baryon chemical potential ...
Roy A. Lacey
doaj   +1 more source

Magnetic moments of the lowest-lying singly heavy baryons

Physics Letters B, 2018
A light baryon is viewed as Nc valence quarks bound by meson mean fields in the large Nc limit. In much the same way a singly heavy baryon is regarded as Nc−1 valence quarks bound by the same mean fields, which makes it possible to use the properties of ...
Ghil-Seok Yang, Hyun-Chul Kim
doaj   +1 more source

Baryon-Baryon-Meson Coupling Constants in QCD

AIP Conference Proceedings, 2010
The strong coupling constant of decuplet and octet baryons to vector and pseudoscalar mesons are calculated in light cone QCD sum rules in general case and when the SU(3)f symmetry is taken into account. A comparison of the obtained results with the existing experimental data and predictions of the other nonperturbative approaches is also made.
T. M. Aliev, K. Azizi, A. Ozpineci, M. Savci, V. Zamiralov, Leonardo Angelini, Pietro Colangelo, Fulvia De Fazio, G. E. Bruno, Donato Creanza, E. Nappi   +10 more
openaire   +2 more sources

Exploring Dark Photon Production and Kinetic Mixing Constraints in Heavy‐Ion Collisions

Astronomische Nachrichten, Volume 346, Issue 3-4, March-May 2025.
ABSTRACT Vector U‐bosons, often referred to as “dark photons,” are potential candidates for mediating dark matter interactions. In this study, we outline a procedure to derive theoretical constraints on the upper bound of the kinetic mixing parameter ϵ2MU$$ {\upvarepsilon}^2\left({M}_U\right) $$ using dilepton data from heavy‐ion from SIS to RHIC ...
Adrian William Romero Jorge, Elena Bratkovskaya, Taesoo Song, Laura Sagunski   +3 more
wiley   +1 more source

Correlated $\pi\pi$ and $K\bar K$ exchange in the baryon-baryon interaction

, 1995
A dynamical model for correlated two-pion and two-kaon exchange in the baryon- baryon interaction is presented, both in the scalar-isoscalar ($\sigma$) and the vector-isovector ($\rho$) channel.
A. Reuber, Amati, Bjorken, Blankenbecler, Brown, de Swart, de Swart, Dumbrajs, Durso, Edmonds, Goldberger, H.-C. Kim, Hippchen, Holzenkamp, Holzenkamp, Höhler, Höhler, Ieiri, Imai, J. Speth, Jacob, Jaffe, Jaffe, Jaffe, Jaffe, Janssen, K. Holinde, Kim, Lin, Lohse, Lurie, Machleidt, Maessen, Martin, Nagels, Nagels, Nath, Neville, Nielsen, Nielsen, Pais, Read, Reuber, Reuber, Riska, Riska, Sakurai, Scadron, Schütz, van Kampen   +49 more
core   +1 more source

Dark Energy From the Gravitational Wave Background With Scalar Field Dark Matter

Astronomische Nachrichten, Volume 346, Issue 3-4, March-May 2025.
ABSTRACT Recent observational results, such as those from pulsar timing arrays (PTA), suggest a low‐frequency Gravitational Wave Background (GWB) permeates our universe. This opens the possibility that gravitational waves could span a broader spectrum, potentially impacting cosmological scales.
Edwin L. Pérez‐Ochoa, Tonatiuh Matos
wiley   +1 more source

Euler–Heisenberg Black Hole Surrounded by Quintessence in the Background of Perfect Fluid Dark Matter: Thermodynamics, Shadows, and Quasinormal Modes

Fortschritte der Physik, Volume 73, Issue 3, March 2025.
Abstract Current observations show that a significant fraction of the Universe is composed of dark energy and dark matter. In this paper, the simultaneous effects of these dark sectors on the Euler–Heisenberg black hole are investigated, using the quintessence matter field and perfect fluid to model them. In particular, the black hole's thermodynamics,
Bilel Hamil, Bekir Can Lütfüoğlu
wiley   +1 more source

Phase Structure in a Hadronic Chiral Model

, 2006
We study the phase diagram of a hadronic chiral flavor-SU(3) model. Heavy baryon resonances can induce a phase structure that matches current results from lattice-QCD calculations at finite temperature and baryon density.
D Zschiesche, de Forcrand P Philipsen O, Fodor Z, G Zeeb, Ivanov Y B Russkikh V N Toneev V D, Katz S D, Mott N F, S Schramm, Schramm S Zeeb G Zschiesche D, Serot B D, Stephanov M A, Zschiesche D   +11 more
core   +1 more source

Baryon–Baryon interactions from lattice QCD [PDF]

Chinese Physics C, 2010
We report on new attempt to investigate baryon-baryon interactions in lattice QCD. From the Bethe-Salpeter (BS) wave function, we have successfully extracted the nucleon-nucleon ($NN$) potentials in quenched QCD simulations, which reproduce qualitative features of modern $NN$ potentials.
openaire   +2 more sources

Visible GeV ALP from TeV Vector‐Like Leptons

Fortschritte der Physik, Volume 73, Issue 3, March 2025.
Abstract A model is presented where a GeV axion‐like‐particle (ALP) is predicted in a large portion of the parameter space due to the presence of explicit Peccei–Quinn (PQ) symmetry‐breaking terms in an exotic leptonic sector. The latter provides a solution to the muon g−2$g-2$ anomaly, within the framework of the Linear Seesaw neutrino mechanism.
Arturo de Giorgi, Marta Fuentes Zamoro, Luca Merlo   +2 more
wiley   +1 more source