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The B0→J/ψf0(1370,1500,1710) decays: an opportunity for scalar glueball hunting

The scalars f 0 closest to 1.5 GeV contain the mesons f 0 ( 1370 ) , f 0 ( 1500 ) and f 0 ( 1710 ) , and the latter two ones are usually viewed as the potential candidates for the scalar glueballs. In this work, by including the important contributions from the vertex corrections, we study the decay...

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Published in:The European physical journal. C, Particles and fields Particles and fields, 2024-04, Vol.84 (4), p.358
Main Authors: Ren, Jia-Le, Li, Min-Qi, Liu, Xin, Zou, Zhi-Tian, Li, Ying, Xiao, Zhen-Jun
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container_title The European physical journal. C, Particles and fields
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Li, Min-Qi
Liu, Xin
Zou, Zhi-Tian
Li, Ying
Xiao, Zhen-Jun
description The scalars f 0 closest to 1.5 GeV contain the mesons f 0 ( 1370 ) , f 0 ( 1500 ) and f 0 ( 1710 ) , and the latter two ones are usually viewed as the potential candidates for the scalar glueballs. In this work, by including the important contributions from the vertex corrections, we study the decays B 0 → J / ψ f 0 within the improved perturbative QCD approach and analyze the possible scalar glueball hunting. Together with the two mixing models, namely, f 0 ( 1500 ) ( f 0 ( 1710 ) ) being the primary scalar glueball in model I (II), and two classification scenarios, namely, f 0 being the q q ¯ excited (ground) states in scenario 1 (2), the branching fractions associated with their ratios for B 0 → J / ψ f 0 are evaluated comprehensively. The predictions with still large uncertainties in the considered two mixing models are roughly consistent with currently limited data, which indicates that both more rich data and more precise predictions are urgently demanded to figure out the scalar glueball clearly in the future. Moreover, several interesting ratios between the branching fractions of B 0 → J / ψ f 0 ( → π + π - / K + K - ) and B 0 → J / ψ ρ 0 / ϕ ( → π + π - / K + K - ) that could help us to understand the nature of scalar f 0 are defined and predicted theoretically. These ratios should be examined in future experiments.
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subjects Astronomy
Astrophysics and Cosmology
Elementary Particles
Hadrons
Heavy Ions
Hunting
Measurement Science and Instrumentation
Mesons
Nuclear Energy
Nuclear Physics
Physics
Physics and Astronomy
Quantum Field Theories
Quantum Field Theory
Quarks
Regular Article - Theoretical Physics
Scalars
String Theory
Theoretical physics
title The B0→J/ψf0(1370,1500,1710) decays: an opportunity for scalar glueball hunting
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