XYZ spectroscopy at electron-hadron facilities II: Semi-inclusive processes with pion exchange

作     者：Winney, D. Pilloni, A. Mathieu, V. Hiller Blin, A.N. Albaladejo, M. Smith, W.A. Szczepaniak, A. 

作者机构：Guangdong Provincial Key Laboratory of Nuclear Science Institute of Quantum Matter South China Normal University Guangzhou510006 China Guangdong-Hong Kong Joint Laboratory of Quantum Matter Southern Nuclear Science Computing Center South China Normal University Guangzhou510006 China Dipartimento di Scienze Matematiche e Informatiche Scienze Fisiche e Scienze della Terra Università degli Studi di Messina MessinaI-98122 Italy INFN Sezione di Catania CataniaI-95123 Italy Departament de Física Quàntica i Astrofísica Institut de Ciències del Cosmos Universitat de Barcelona E-08028 Spain Institute for Theoretical Physics Regensburg University RegensburgD-93040 Germany Institute for Theoretical Physics Tübingen University Auf der Morgenstelle 14 Tübingen72076 Germany  Centro Mixto CSIC-Universidad de Valencia ValenciaE-46071 Spain Center for Exploration of Energy and Matter Indiana University BloomingtonIN47403 United States Department of Physics Indiana University BloomingtonIN47405 United States Theory Center Thomas Jefferson National Accelerator Facility Newport NewsVA23606 United States 

出 版 物：《arXiv》 (arXiv)

年 卷 期：2022年

核心收录：

主　　题：Hadrons 

摘      要：Semi-inclusive processes are very promising to investigate XYZ hadrons at the next generation of electron-hadron facilities, because they generally boast higher cross sections. We extend our formalism of exclusive photoproduction to semi-inclusive final states. The inclusive production cross sections for charged axial-vector Z states from pion exchange are predicted. We isolate the contribution of ∆ resonances at small missing mass. Production near threshold is shown to be enhanced roughly by a factor of two compared to the exclusive reaction. We benchmark the model with data of semi-inclusive b±1 production. Copyright © 2022, The Authors. All rights reserved.