Results 131 to 140 of about 2,180 (221)

Flavor physics in the quark sector [PDF]

open access: yes, 2008
In the past decade, one of the major challenges of particle physics has been to gain an in-depth understanding of the role of quark flavor. In this time frame, measurements and the theoretical interpretation of their results have advanced tremendously. A
Smith, Christopher   +999 more
core   +1 more source

Scrutinizing Dark-Matter Scenarios with B → (K,K)ν¯ν Decays

open access: yesUniverse
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   +2 more
doaj   +1 more source

Bilocal field approach and semileptonic heavy meson decays [PDF]

open access: yes, 1992
In this paper we consider the bilocal field approach for $QCD$. We obtain a bilocal effective meson action with a potential kernel given in relativistic covariant form.
Kaschluhn, L., Kalinovsky, Yu. L.
core   +1 more source

Observation Of The [PDF]

open access: yes, 2007
5> (lifetime). 1 Introduction The B + c meson is the lowest-mass bound state of quarkonium states containing a charm quark and a bottom anti-quark 1 .
Meson At
core  

Chiral Symmetry restoration from the hadronic regime

open access: yesEPJ 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   +4 more
doaj   +1 more source

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

open access: yesEur 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

open access: yesEPJ 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   +3 more
doaj   +1 more source

Decays of Pseudoscalar Mesons [PDF]

open access: yesProgress of Theoretical Physics, 1981
S. Minami, R. Nakashima
openaire   +1 more source

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

open access: yesParticles
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   +5 more
doaj   +1 more source

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