https://doi.org/10.1140/epja/s10050-024-01405-4
Regular Article - Theoretical Physics
Analysis of the resonance X(4630) at non-zero temperature
Department of Basic Sciences, Army NCO Vocational HE School, National Defense University, Altıeylül, 10185, Balıkesir, Turkey
Received:
2
July
2024
Accepted:
22
August
2024
Published online:
18
September
2024
We calculate the spectroscopic parameters of resonance X(4630) observed in the process by at the LHCb experiments at CERN by means of thermal QCD sum rule method at non-zero temperature. The exotic vector X(4630) is assigned as the diquark–antidiquark state with spin-parity . Employing the two-point QCD sum rule approach up to the sixth order of the operator dimension by including non-perturbative contribution, we calculate the mass and decay constant of X(4630) at . The numerical analyses demonstrate that the values of the mass and decay constant of X(4630) near the deconfinement temperature decrease up to and of their vacuum values. At , the obtained results for the mass MeV and decay constant MeV are in excellent agreement with the results reported by LHCb experiments and other theoretical predictions.
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© The Author(s), under exclusive licence to Società Italiana di Fisica and Springer-Verlag GmbH Germany, part of Springer Nature 2024. Springer Nature or its licensor (e.g. a society or other partner) holds exclusive rights to this article under a publishing agreement with the author(s) or other rightsholder(s); author self-archiving of the accepted manuscript version of this article is solely governed by the terms of such publishing agreement and applicable law.