English
Related papers

Related papers: $\phi$ meson mass and decay width in strange hadro…

200 papers

The properties of $K$ and $\bar K$ mesons in nuclear matter at finite temperature are obtained from a chiral unitary approach in coupled channels which incorporates the $s$- and p-waves of the kaon-nucleon interaction. The in-medium…

High Energy Physics - Phenomenology · Physics 2015-05-14 L. Tolos , D. Cabrera , A. Polls , A. Ramos

The properties of the antikaons in nuclear matter are investigated from a chiral unitary approach which incorporates the s- and p-waves of the ${\bar K}N$ interaction. To obtain the in-medium meson-baryon amplitudes we include, in a…

Nuclear Theory · Physics 2008-11-26 L. Tolos , A. Ramos , E. Oset

The masses of open bottom mesons ($B$($B^+$,$B^0$), $\bar{B}$($B^-$,$\bar{B^0}$), $B_s$(${B_{s}}^0$, $\bar{{B_s}^0}$)) and upsilon states ($\Upsilon(1S)$, $\Upsilon(2S)$, $\Upsilon(3S)$, $\Upsilon(4S)$, and $\Upsilon(1D)$) are investigated…

High Energy Physics - Phenomenology · Physics 2022-06-14 Amal Jahan C. S. , Amruta Mishra

We present the valence quark distributions of the kaons in an isospin asymmetric dense strange medium consisting of nucleons and hyperons. The comparative analysis of in-medium parton distribution functions, electromagnetic form factors,…

High Energy Physics - Phenomenology · Physics 2025-06-25 Manpreet Kaur , Abi Jebarson A , Dhananjay Singh , Navpreet Kaur , Suneel Dutt , Harleen Dahiya , Arvind Kumar

We study the properties of strange and charm mesons in hot and dense matter within a self-consistent coupled-channel approach for the experimental conditions of density and temperature expected for the CBM experiment at FAIR/GSI. The…

High Energy Physics - Phenomenology · Physics 2009-06-25 Laura Tolos , Daniel Cabrera , Daniel Gamermann , Tetsuro Mizutani , Raquel Molina , Eulogio Oset , Angels Ramos

Using QCD sum rules and chiral SU(3) model, we investigate the effect of temperature, density, strangeness fraction and isospin asymmetric parameter on the shift in masses and decay constants of the pseudoscalar $D$ and $B$ meson in…

High Energy Physics - Phenomenology · Physics 2017-08-23 Rahul Chhabra , Arvind Kumar

We study the properties of strange and charm mesons in hot and dense matter within a self-consistent coupled-channel approach for the experimental conditions of density and temperature expected for the CBM experiment at FAIR/GSI. The…

High Energy Physics - Phenomenology · Physics 2009-11-12 L. Tolos , D. Cabrera , D. Gamermann , C. Garcia-Recio , R. Molina , J. Nieves , E. Oset , A. Ramos

We calculate the in-medium $D$ and $\bar D$-meson masses in isospin asymmetric nuclear matter in an effective chiral model. The $D$ and $\bar D$ - mass modifications arising from their interactions with the nucleons and the scalar mesons in…

Nuclear Theory · Physics 2009-03-12 Amruta Mishra , Arindam Mazumdar

A generalized Lagrangian for the description of hadronic matter based on the linear $SU(3)_L \times SU(3)_R$ $\sigma$-model is proposed. Besides the baryon octet, the spin-0 and spin-1 nonets, a gluon condensate associated with broken scale…

Nuclear Theory · Physics 2009-10-30 P. Papazoglou , S. Schramm , J. Schaffner-Bielich , H. Stöcker , W. Greiner

The behavior of the $\phi$ meson at finite density is studied, making use of a QCD sum rule approach in combination with the maximum entropy method. It is demonstrated that a possible mass shift of the $\phi$ in nuclear matter is strongly…

High Energy Physics - Phenomenology · Physics 2015-02-10 Philipp Gubler , Keisuke Ohtani

The in-medium masses and optical potentials of $B$ and ${\bar B}$ mesons are studied in an isospin asymmetric, strange, hot and dense hadronic environment using a chiral effective model. The chiral $SU(3)$ model originally designed for the…

Nuclear Theory · Physics 2015-08-25 Divakar Pathak , Amruta Mishra

By an effective Lagrangian plus QCD sum-rule approach, we investigate the mass shift of the $J/\psi$ state in medium, in symmetric nuclear matter with zero and finite temperature, and cold strange matter. The in-medium mass of the $J/\psi$…

High Energy Physics - Phenomenology · Physics 2021-02-03 Rahul Chhabra , Kazuo Tsushima

We present a study of in-medium cross sections and (off-shell) transition rates for the most relevant binary reactions for strange pseudoscalar meson production close to threshold in heavy-ion collisions at FAIR energies. Our results rely…

High Energy Physics - Phenomenology · Physics 2015-06-19 Daniel Cabrera , Laura Tolos , Jörg Aichelin , Elena Bratkovskaya

We study the beam-energy and system-size dependence of \phi meson production (using the hadronic decay mode \phi -- K+K-) by comparing the new results from Cu+Cu collisions and previously reported Au+Au collisions at \sqrt{s_NN} = 62.4 and…

Nuclear Experiment · Physics 2012-08-27 STAR Collaboration

The Hidden Local Symmetry Lagrangian is used to study the interactions of phi mesons with other pseudoscalar and vector mesons in a hadronic gas at finite temperature. We have found a significantly small phi mean free path (less than 2.4 fm…

Nuclear Theory · Physics 2009-11-07 L. Alvarez-Ruso , V. Koch

QCD sum rules predict that the change of the strange quark condensate $<\bar s s>$ in hadron matter at finite baryon density causes a shift of the peak position of the di-electron spectra from $\phi$ meson decays. Due to the expansion of…

Nuclear Theory · Physics 2008-11-26 B. Kampfer , O. P. Pavlenko , S. Zschocke

The $K^-/K^+$ ratio in heavy-ion collisions at GSI is studied including the properties of the participating hadrons in hot and dense matter, paying a particular attention to the in-medium properties of antikaons at finite temperature. The…

Nuclear Theory · Physics 2007-05-23 L. Tolos , J. Schaffner-Bielich , A. Polls , A. Ramos

We study the properties of heavy mesons using a unitarized approach in a hot pionic medium, based on an effective hadronic theory. The interaction between the heavy mesons and pseudoscalar Goldstone bosons is described by a chiral…

High Energy Physics - Phenomenology · Physics 2019-10-04 Gloria Montaña , Angels Ramos , Laura Tolos

The masses and decays of the scalar D_{s0}^*(2317) and axial-vector D_{s1}^*(2460) charmed strange mesons are calculated consistently in the hadrogenesis conjecture. These mesons decay either strongly into the isospin-violating pi^0 D_s and…

High Energy Physics - Phenomenology · Physics 2008-11-26 M. F. M. Lutz , M. Soyeur

We calculate the decay rate of light scalar mesons, using a diquark chiral effective theory, recently proposed to describe exotic hadrons. In the effective theory the light scalar mesons are postulated to be bound states of diquark and…

High Energy Physics - Phenomenology · Physics 2015-06-25 Deog Ki Hong , Chaejun Song