Exclusive radiative production of fully-charmed tetraquarks at B factory

We apply a novel factorization formula recently developed within NRQCD framework to analyze the exclusive production of the fully-charmed tetraquark T-4c plus a hard photon at super B factory. For simplicity, in this work we have concentrated on the production of the 0(++) and 2(++) T-4c associated with a photon. With some rough estimates about the unknown nonperturbative NRQCD matrix elements in a simplified diquark-antidiquark model, we predict the production rates of these types of exclusive production channels at root s = 10.58 GeV and also assess their observation prospect at Belle 2 experiment. (C) 2021 The Authors. Published by Elsevier B.V.

Automated summary

The study uses a novel factorization formula within the NRQCD framework to analyze the exclusive production of fully-charmed tetraquark T-4c with a hard photon at a super B factory. By concentrating on the production of 0(++) and 2(++) T-4c with a photon and making rough estimates about unknown nonperturbative NRQCD matrix elements in a simplified model, the study predicts the production rates of these exclusive production channels at root s = 10.58 GeV and evaluates their observation prospect at the Belle 2 experiment.