Photoproduction of fully charmed tetraquark at electron-ion colliders
Feng Feng, Y. S. Huang, Yu Jia, Wen-Long Sang, Deshan Yang, Jia-Yue Zhang
Abstract
In this work, we investigate the inclusive photoproduction of the <a:math xmlns:a="http://www.w3.org/1998/Math/MathML" display="inline"> <a:mi>C</a:mi> </a:math> -odd, <c:math xmlns:c="http://www.w3.org/1998/Math/MathML" display="inline"> <c:mi>S</c:mi> </c:math> -wave fully charmed tetraquark at electron-ion colliders within the nonrelativistic QCD (NRQCD) factorization framework, at the lowest order in velocity and <e:math xmlns:e="http://www.w3.org/1998/Math/MathML" display="inline"> <e:msub> <e:mi>α</e:mi> <e:mi>s</e:mi> </e:msub> </e:math> . The value of the NRQCD long-distance matrix element is estimated from two phenomenological potential models. Our studies reveal that the photoproduction of the <g:math xmlns:g="http://www.w3.org/1998/Math/MathML" display="inline"> <g:msup> <g:mn>1</g:mn> <g:mrow> <g:mo>+</g:mo> <g:mo>−</g:mo> </g:mrow> </g:msup> </g:math> fully charmed tetraquark may be difficult to observe at HERA and the EicC; nevertheless, its observation prospects at the EIC appear to be bright. Published by the American Physical Society 2024