Zobrazeno 1 - 10
of 131
pro vyhledávání: '"Exotic states"'
Publikováno v:
Physics Letters B, Vol 854, Iss , Pp 138760- (2024)
We study the potential of X(3872) at finite temperature in the Born-Oppenheimer approximation under the assumption that it is a tetraquark. We argue that, at large number of colors, it is a good approximation to assume that the potential consists in
Externí odkaz:
https://doaj.org/article/534de3e4e18849079588cc64c68b4e21
Autor:
Vadim Baru, Xiang-Kun Dong, Meng-Lin Du, Arseniy Filin, Feng-Kun Guo, Christoph Hanhart, Alexey Nefediev, Juan Nieves, Qian Wang
Publikováno v:
Physics Letters B, Vol 833, Iss , Pp 137290- (2022)
We discuss some general features of the effective range expansion, the content of its parameters with respect to the nature of the pertinent near-threshold states and the necessary modifications in the presence of coupled channels, isospin violations
Externí odkaz:
https://doaj.org/article/ad4ae23edaa94875bf18f4d03e067c03
Akademický článek
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Autor:
Ulaş Özdem
Publikováno v:
Süleyman Demirel Üniversitesi Fen-Edebiyat Fakültesi Fen Dergisi, Vol 15, Iss 2, Pp 244-252 (2020)
Employing light-cone QCD sum rule, we have acquired the magnetic moment of the Zc(3900) resonance by considering it as the molecular form of D(D^* ) ̅ and D^* D ̅ resonance with quantum numbers JPC = 1+−. The magnetic moment contains crucial know
Externí odkaz:
https://doaj.org/article/c5997046fb734b549843fabbd470a222
Autor:
Victor P. Gonçalves, Bruno D. Moreira
Publikováno v:
Physics Letters B, Vol 816, Iss , Pp 136249- (2021)
We investigate the production of the fully - heavy tetraquark states T4Q in the γγ interactions present in proton-proton, proton-nucleus and nucleus-nucleus collisions at the CERN Large Hadron Collider (LHC). We focus on the γγ→QQ (Q=J/ψ,ϒ) s
Externí odkaz:
https://doaj.org/article/ebbc642650614b7ab79f6a5624b1ecbd
Autor:
J. Ferretti, E. Santopinto
Publikováno v:
Frontiers in Physics, Vol 9 (2021)
We study some of the main properties (masses and open-flavor strong decay widths) of 4P and 5P charmonia. While there are two candidates for the χc0(4P,5P) states, the X(4500) and X(4700), the properties of the other members of the χc(4P,5P) multip
Externí odkaz:
https://doaj.org/article/7442b37b7de14d12af3eca05965f1143
Autor:
Antonio Amoroso, Stefano Bagnasco, Rinaldo Baldini Ferroli, Ilaria Balossino, Monica Bertani, Diego Bettoni, Fabrizio Bianchi, Alberto Bortone, Alessandro Calcaterra, Gianluigi Cibinetto, Fabio Cossio, Francesca De Mori, Manuel Dioniso Da Rocha Rolo, Marco Destefanis, Riccardo Farinelli, Luciano Fava, Giulietto Felici, Luciano Gaido, Isabella Garzia, Stefano Gramigna, Michela Greco, Lia Lavezzi, Stefano Lusso, Marco Maggiora, Alessio Mangoni, Simonetta Marcello, Giulio Mezzadri, Sara Morgante, Elisabetta Pace, Simone Pacetti, Piero Patteri, Angelo Rivetti, Marco Scodeggio, Stefano Sosio, Stefano Spataro
Publikováno v:
Universe, Vol 7, Iss 11, p 436 (2021)
There are two available sets of data on the e+e−→Λc+Λ¯c− cross section at energies close to the production threshold, collected by the Belle and by the BESIII Collaborations. The measurement of the former, performed by means of the initial s
Externí odkaz:
https://doaj.org/article/1daa3b1509294b76934df7e023a658d7
Akademický článek
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Publikováno v:
Symmetry, Vol 12, Iss 6, p 884 (2020)
We review the existing results on the exotic XYZ states and their decays obtained within the confined covariant quark model. This dynamical approach is based on a non-local Lagrangian of hadrons with quarks, has built-in quark confinement, and is sui
Externí odkaz:
https://doaj.org/article/64272191fd6946dbb4998dfd5db375b1
Akademický článek
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