Results 81 to 90 of about 57,829 (262)

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

open access: yesPhys.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

Pseudoscalar mesons in hot, dense matter [PDF]

open access: yesPhysical Review C, 2004
33 pages, 12 figures, PRC ...
Yu. L. Kalinovsky   +3 more
openaire   +3 more sources

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

open access: yesEPJ 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 $\rho$, $\omega$

open access: yes, 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

open access: yesAdvances 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   +2 more
wiley   +1 more source

The Pseudoscalar Meson Mass to Two Loops in Three-Flavor Partially Quenched $\chi$PT

open access: yes, 2004
This paper presents a first study of the pseudoscalar meson masses to two loops, or NNLO, within the supersymmetric formulation of partially quenched chiral perturbation theory (PQ$\chi$PT).
F. Farchioni   +6 more
core   +1 more source

Millimeter‐Wave WISP Search with Coherent Light‐Shining‐Through‐a‐Wall Toward the STAX Project

open access: yesAnnalen der Physik, Volume 536, Issue 1, January 2024.
This research article shows potential of millimeter waves for searching dark photons, one of the candidates of dark matter. By sharing a common reference signal, an excellent temporal coherency is achieved between production and detection of dark photons.
Akira Miyazaki   +7 more
wiley   +1 more source

Distribution amplitudes of pseudoscalar mesons

open access: yes, 2006
Presented at XXIV International Symposium on Lattice Field Theory, July 23-28 2006, Tucson Arizona ...
Braun, Vladimir M.   +10 more
openaire   +3 more sources

Probing the transversity spin structure of a nucleon in neutrino-production of a charmed meson

open access: yesEPJ Web of Conferences, 2016
Including O(mc) terms in the coefficient functions and/or O(mD) twist 3 contributions in the heavy meson distribution amplitudes leads to a non-zero transverse amplitude for exclusive neutrino production of a D pseudoscalar charmed meson on an ...
Pire B., Szymanowski L., Wagner J.
doaj   +1 more source

Chiral dynamics in U(3) unitary chiral perturbation theory [PDF]

open access: yes, 2012
We perform a complete one-loop calculation of meson-meson scattering, and of the scalar and pseudoscalar form factors in U(3) chiral perturbation theory with the inclusion of explicit resonance fields.
Albaladejo   +45 more
core   +2 more sources

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