Results 11 to 20 of about 344 (138)
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
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Relaxing the W′ Constraint on Compact Extradimension
Advances in High Energy Physics, Volume 2022, Issue 1, 2022., 2022 In this paper, we study the constraint on brane tension and compactification scale for models with brane fluctuations using the results from the direct search of W′ at 13 TeV LHC, with an integrated luminosity of 36.1fb−1, in the case for which branon forms the entire cold dark matter.
Mathew Thomas Arun +1 more
wiley +1 more source
Magnetic polarizabilities of light mesons in SU(3) lattice gauge theory
Nuclear Physics B, 2015 We investigate the ground state energies of neutral pseudoscalar and vector meson in SU(3) lattice gauge theory in the strong abelian magnetic field.
E.V. Luschevskaya +3 more
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Trace and Axial Anomalies on Equal Footing
Advances in High Energy Physics, 2020 We discussed that for some particular nonsupersymmetric theories, a generalized symmetry that includes both the scale and axial transformations and leads to a single current may contain also a pseudoscalar term. The method, inspired by the superconformal
Renata Jora
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Hadronic Molecule Interpretation of Tcc+ and Its Beauty Partners
Advances in High Energy Physics, Volume 2022, Issue 1, 2022., 2022 Motivated by the latest discovery of a new tetraquark Tcc+ with two charm quarks and two light antiquarks by LHCb Collaboration, we investigated the DD∗ hadronic molecule interpretation of Tcc+. By calculation, the mass and the decay width of this new structure Tcc+ can be understood in one‐meson exchange potential model. The binding energies for these
Huimin Ren +3 more
wiley +1 more source
European Physical Journal C: Particles and Fields, 2018 We investigate the decays of $$\bar{B}^0_s$$ B¯s0 , $$\bar{B}^0$$ B¯0 and $$B^-$$ B- into $$\eta _c$$ ηc plus a scalar or vector meson in a theoretical framework by taking into account the dominant process for the weak decay of $$\bar{B}$$ B¯ meson into $
Ju-Jun Xie, Gang Li
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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
Heavy + light pseudoscalar meson semileptonic transitions
European Physical Journal C: Particles and Fields, 2021 A symmetry-preserving regularisation of a vector $$\times $$ × vector contact interaction (SCI) is used to deliver a unified treatment of semileptonic transitions involving $$\pi $$ π , K, $$D_{(s)}$$ D ( s ) , $$B_{(s,c)}$$ B ( s , c ) initial states ...
Zhen-Ni Xu +3 more
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Radiative decays of vector and pseudoscalar nonets
EPJ Web of Conferences, 2012 Using a counting scheme which treats the light pseudoscalar and the light vector-meson nonet on equal footing, the decays of the narrow light vector mesons into a pseudoscalar meson and a dilepton and of the η′ meson into an ɷ meson and a dielectron are ...
Lutz M.F.M., Leupold S., Terschlüsen C.
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The Ds0(2590)+ as the dressed cs¯(21S0) meson in a coupled-channels calculation
Physics Letters B, 2022 The recent discovery of the Ds0(2590)+ meson by the LHCb Collaboration has stimulated the analysis of meson-meson channels effects in the two-body quark-antiquark meson spectrum.
Pablo G. Ortega +3 more
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