Results 91 to 100 of about 382 (185)

Pseudoscalar Mesons Scattering off D*-mesons with Chiral Perturbation Theory

EPJ Web of Conferences, 2012
We have systematically calculated the s-wave pseudoscalar mesons and D*- mesons scattering lengths to the third order with chiral perturbation theory, which will be helpful to reveal their strong interaction.
Zhu Shi-Lin, Liu Xiang, Liu Yan-Rui, Liu Zhan-Wei   +3 more
doaj   +1 more source

Scrutinizing Dark-Matter Scenarios with B → (K,$K^{\ast }$)$\overline{\mathit{\nu }}$ν Decays

Universe
Conceivable explanations of Belle-II measurements of a (surprising) excess of missing energy decays of the B meson to the K meson not covered by standard model neutrino–antineutrino pairs might be offered by additional contributions of dark matter ...
Alexander Berezhnoy, Wolfgang Lucha, Dmitri Melikhov   +2 more
doaj   +1 more source

Chiral Symmetry restoration from the hadronic regime

EPJ Web of Conferences, 2017
We discuss recent advances on QCD chiral symmetry restoration at finite temperature, within the theoretical framework of Effective Theories. U(3) Ward Identities are derived between pseudoscalar susceptibilities and quark condensates, allowing to explain
Gómez Nicola Angel, Cortés Santiago, Morales John, Ruiz de Elvira Jacobo, Andrés Ricardo Torres   +4 more
doaj   +1 more source

Holographic QCD and the muon anomalous magnetic moment. [PDF]

Eur Phys J C Part Fields, 2021
Leutgeb J, Mager J, Rebhan A.
europepmc   +1 more source

Quarkonia and heavy-light mesons in a covariant quark model

EPJ Web of Conferences, 2016
Preliminary calculations using the Covariant Spectator Theory (CST) employed a scalar linear confining interaction and an additional constant vector potential to compute the mesonic mass spectra.
Leitão Sofia, Stadler Alfred, Peña M. T., Biernat Elmar P.   +3 more
doaj   +1 more source

Highlights of light meson spectroscopy at the BESIII experiment. [PDF]

Natl Sci Rev, 2021
Jin S, Shen X.
europepmc   +1 more source

Decays of Pseudoscalar Mesons [PDF]

Progress of Theoretical Physics, 1981
S. Minami, R. Nakashima
openaire   +1 more source

Complete experiments in pseudoscalar meson photoproduction

, 2015
The problem of extracting photoproduction amplitudes uniquely from so called complete experiments is discussed. This problem can be considered either for the extraction of full production amplitudes, or for the determination of multipoles. Both cases are treated briefly. Preliminary results for the fitting of multipoles, as well as the determination of
openaire   +3 more sources

Derivation of Meson Masses in SU(3) and SU(4) Extended Linear Sigma Model at Finite Temperature

Particles
The present study focused on the mesonic potential contributions to the Lagrangian of the extended linear sigma model (eLSM) for scalar and pseudoscalar meson fields across various quark flavors.
Abdel Nasser Tawfik, Azar I. Ahmadov, Alexandra Friesen, Yuriy Kalinovsky, Alexey Aparin, Mahmoud Hanafy   +5 more
doaj   +1 more source

Measurement of polarization observables T, P, and H in π0 and η photoproduction off quasi-free nucleons. [PDF]

Eur Phys J A Hadron Nucl, 2023
Jermann N, Krusche B, Metag V, Afzal F, Badea M, Beck R, Bielefeldt P, Bieling J, Biroth M, Blanke E, Borisov N, Bornstein M, Brinkmann KT, Ciupka S, Crede V, Dolzhikov A, Drexler P, Dutz H, Elsner D, Fedorov A, Frommberger F, Gardner S, Ghosal D, Goertz S, Gorodnov I, Grüner M, Hammann C, Hartmann J, Hillert W, Hoffmeister P, Honisch C, Jude TC, Kalischewski F, Ketzer B, Klassen P, Klein F, Klempt E, Knaust J, Kolanus N, Kreit J, Krönert P, Lang M, Lazarev AB, Livingston K, Lutterer S, Mahlberg P, Meier C, Meyer W, Mitlasoczki B, Müllers J, Nanova M, Neganov A, Nikonov K, Noël JF, Ostrick M, Ottnad J, Otto B, Penman G, Poller T, Proft D, Reicherz G, Reinartz N, Richter L, Runkel S, Salisbury B, Sarantsev AV, Schaab D, Schmidt C, Schmieden H, Schultes J, Seifen T, Spieker K, Stausberg N, Steinacher M, Taubert F, Thiel A, Thoma U, Thomas A, Urban M, Urff G, Usov Y, van Pee H, Wang YC, Wendel C, Wiedner U, Wunderlich Y, CBELSA/TAPS Collaboration.   +86 more
europepmc   +1 more source