Results 111 to 120 of about 142,204 (303)

Pseudoscalar mesons in hot, dense matter [PDF]

Physical Review C, 2004
33 pages, 12 figures, PRC ...
Yu. L. Kalinovsky, Pedro Costa, M. C. Ruivo, C. A. de Sousa   +3 more
openaire   +3 more sources

Mass Spectrum of Noncharmed and Charmed Meson States in Extended Linear-Sigma Model

Particles
The mass spectrum of different meson particles is generated using an effective Lagrangian of the extended linear-sigma model (eLSM) for scalar and pseudoscalar meson fields and quark flavors, up, down, strange, and charm.
Azar I. Ahmadov, Azzah A. Alshehri, Abdel Nasser Tawfik   +2 more
doaj   +1 more source

Meson electromagnetic form factors

EPJ Web of Conferences, 2012
The electromagnetic structure of the pseudoscalar meson nonet is completely described by the sophisticated Unitary&Analytic model, respecting all known theoretical properties of the corresponding form factors.
Dubničková Anna Z., Dubnička Stanislav   +1 more
doaj   +1 more source

Decays of bottom mesons emitting pseudoscalar and tensor mesons in ISGW II model [PDF]

Phys.Rev.D82:094014,2010, 2010
In this paper, we investigate phenomenologically two-body weak decays of the bottom mesons emitting pseudoscalar and tensor mesons. Decay amplitudes are obtained using the factorization scheme in the improved ISGW II model. Branching ratios for the CKM-favored and CKM-suppressed decays are calculated.
arxiv   +1 more source

Chiral dynamics in form factors, spectral-function sum rules, meson-meson scattering and semilocal duality

, 2012
In this work, we perform the one-loop calculation of the scalar and pseudoscalar form factors in the framework of U(3) chiral perturbation theory with explicit tree level exchanges of resonances.
G. Grayer, H. Georgi, J. A. Oller, J. Ruiz de Elvira, P. Estabrooks, P. Pascual, P. D. B. Collins, Zhi-Hui Guo   +7 more
core   +1 more source

Chiral Properties of Pseudoscalar Mesons on a Quenched $20^4$ Lattice with Overlap Fermions [PDF]

, 2001
The chiral properties of the pseudoscalar mesons are studied numerically on a quenched $20^4$ lattice with the overlap fermion. We elucidate the role of the zero modes in the meson propagators, particularly that of the pseudoscalar meson.
Dong, S. J., Draper, T., Horvath, I., Lee, F. X., Liu, K. F., Zhang, J. B.   +5 more
core   +3 more sources

Light-front holographic distribution amplitudes of pseudoscalar mesons and their application to $B$-meson decays [PDF]

, 2016
In this paper the dynamical spin effects of the light-front holographic wavefunctions for light pseudoscalar mesons are studied using two different assumptions.
Qin Chang, S. Brodsky, Xin-Qiang Li
semanticscholar   +1 more source

Gamma-gamma physics and meson transition form factors [PDF]

EPJ Web of Conferences, 2020
I summarize recent experimental results for two photon production of mesons. These processes include the neutral pion, η and η′ transition form factors and two photon production of pseudoscalar meson pairs.
Kupsc Andrzej
doaj   +1 more source

Meson loops in the $f_0(980)$ and $a_0(980)$ radiative decays into $\rho$, $\omega$

, 2008
We calculate the radiative decay widths of the $a_0(980)$ and $f_0(980)$ scalar mesons into $\rho\gamma$ and $\omega\gamma$ considering the dynamically generated nature of these scalar resonances within the realm of the Chiral Unitary Approach.
Nagahiro, H., Oset, E., Roca, L.
core   +1 more source

Tensor Condensate Accompanied by Chiral Transition in a Strong Magnetic Field

Advances in High Energy Physics, Volume 2025, Issue 1, 2025.
We investigate tensor condensates and chiral condensates in the (2 + 1)‐flavor Nambu–Jona–Lasinio model at finite temperature and density in the presence of a strong magnetic field. The emergence of the tensor condensate is attributed to the four‐fermion interaction.
Yuan-Hao Niu, Xin-Jian Wen, Subhash Singha   +2 more
wiley   +1 more source