Results 31 to 40 of about 27,535 (267)
Unveiling the structure of pseudoscalar mesons [PDF]
Hadron Spectroscopy and Structure, 2020 5 pages, 3 figures. Contribution to the proceedings of the XVIII International Conference on Hadron Spectroscopy and Structure, HADRON-2019.
Daniele Binosi +4 more
openaire +3 more sources
On the Interpretation of Nonresonant Phenomena at Colliders
Advances in High Energy Physics, Volume 2021, Issue 1, 2021., 2021 With null results in resonance searches at the LHC, the physics potential focus is now shifting towards the interpretation of nonresonant phenomena. An example of such shift is the increased popularity of the EFT programme. We can embark on such programme owing to the good integrated luminosity and an excellent understanding of the detectors, which ...
Miguel G. Folgado +2 more
wiley +1 more source
SU(3) analysis of fully-light tetraquarks in heavy meson weak decays
European Physical Journal C: Particles and Fields, 2021 We perform a SU(3) analysis for both semi-leptonic and non-leptonic heavy meson weak decays into a pseudoscalar meson and a fully-light tetraquark in 10 or 27 representation.
Yu-Ji Shi, Ye Xing, Zhen-Xing Zhao
doaj +1 more source
Calculation of Binding Energy and Wave Function for Exotic Hidden‐Charm Pentaquark
Advances in High Energy Physics, Volume 2021, Issue 1, 2021., 2021 In this study, pentaquark Pc(4380) composed of a baryon Σc, and a D¯∗ meson is considered. Pentaquark is as a bound state of two‐body systems composed of a baryon and a meson. The calculated potential will be expanded and replaced in the Schrödinger equation until tenth sentences of expansion.
F. Chezani Sharahi +2 more
wiley +1 more source
Advances in High Energy Physics, Volume 2021, Issue 1, 2021., 2021 We investigate the exclusive semileptonic and rare D⟶π(K) decays within the standard model together with the light‐front quark model (LFQM) constrained by the variational principle for the QCD‐motivated effective Hamiltonian. The form factors are obtained in the q+ = 0 frame and then analytically continue to the physical timelike region.
Ho-Meoyng Choi, Qin Chang
wiley +1 more source
Pseudoscalar meson radial excitations [PDF]
Physical Review C, 2004 5 pages, 3 ...
Craig D. Roberts +3 more
openaire +3 more sources
Assignments of the X(4140), X(4500), X(4630), and X(4685) Based on the QCD Sum Rules
Advances in High Energy Physics, Volume 2021, Issue 1, 2021., 2021 In this article, we take into account our previous calculations based on the QCD sum rules, and tentatively assign the X(4630) as the Ds∗D¯s1−Ds1D¯s∗ tetraquark molecular state or csPc¯s¯A+csAc¯s¯P tetraquark state with the JPC = 1−+, and assign the X(3915) and X(4500) as the 1S and 2S csAc¯s¯A tetraquark states, respectively, with the JPC = 0++. Then,
Zhi-Gang Wang, Ruilin Zhu
wiley +1 more source
The light scalar mesons as tetraquarks
Physics Letters B, 2016 We present a numerical solution of the four-quark Bethe–Salpeter equation for ground-state scalar tetraquarks with JPC=0++. We find that the four-body equation dynamically generates pseudoscalar-meson poles in the Bethe–Salpeter amplitude.
Gernot Eichmann +2 more
doaj +1 more source
Charm meson scattering cross sections by pion and rho meson [PDF]
, 2001 Using the local flavor SU(4) gauge invariance in the limit of vanishing vector meson masses, we extend our previous study of charm meson scattering cross sections by pion and rho meson, which is based only on the pseudoscalar-pseudoscalar-vector meson ...
Baier +20 more
core +2 more sources
Study of the Ground‐State Energies of Some Nuclei Using Hybrid Model
Advances in High Energy Physics, Volume 2021, Issue 1, 2021., 2021 The quark‐quark (QQ) interaction as a perturbed term to the nucleon‐nucleon interaction (NN) without any coupling between them is studied in a hybrid model. This model is used to calculate the ground‐state energies of 2H1 and 4He2 nuclei. In a semirelativistic framework, this model is encouraged for light nuclei and the instanton‐induced interaction by
R. Hussien +3 more
wiley +1 more source