$a^0_2(1320)$偏振光生截面的首次测量
核实验
2025-01-07 v1 高能物理 - 实验
摘要
我们首次测量了介子在平均光子束能量8.5 GeV下的微分光生截面，使用了GlueX实验收集的积分亮度为104 pb的数据。我们完全重建了反应，并在质量区域进行了分波分析，振幅包含了束流的线偏振。这使我们首次能够分离自然宇称交换和非自然宇称交换的贡献。这些测量提供了关于光生机制的新信息，这对于寻找自旋奇异态至关重要。
引用
@article{arxiv.2501.03091,
title = {First Measurement of $a^0_2(1320)$ Polarized Photoproduction Cross Section},
author = {GlueX Collaboration and F. Afzal and C. S. Akondi and M. Albrecht and M. Amaryan and S. Arrigo and V. Arroyave and A. Asaturyan and A. Austregesilo and Z. Baldwin and F. Barbosa and J. Barlow and E. Barriga and R. Barsotti and D. Barton and V. Baturin and V. V. Berdnikov and T. Black and W. Boeglin and M. Boer and W. J. Briscoe and T. Britton and S. Cao and E. Chudakov and G. Chung and P. L. Cole and O. Cortes and V. Crede and M. M. Dalton and D. Darulis and A. Deur and S. Dobbs and A. Dolgolenko and M. Dugger and R. Dzhygadlo and D. Ebersole and M. Edo and H. Egiyan and T. Erbora and P. Eugenio and A. Fabrizi and C. Fanelli and S. Fang and J. Fitches and A. M. Foda and S. Furletov and L. Gan and H. Gao and A. Gardner and A. Gasparian and D. I. Glazier and C. Gleason and V. S. Goryachev and B. Grube and J. Guo and L. Guo and J. Hernandez and K. Hernandez and N. D. Hoffman and D. Hornidge and G. Hou and P. Hurck and A. Hurley and W. Imoehl and D. G. Ireland and M. M. Ito and I. Jaegle and N. S. Jarvis and T. Jeske and M. Jing and R. T. Jones and V. Kakoyan and G. Kalicy and V. Khachatryan and C. Kourkoumelis and A. LaDuke and I. Larin and D. Lawrence and D. I. Lersch and H. Li and B. Liu and K. Livingston and G. J. Lolos and L. Lorenti and V. Lyubovitskij and R. Ma and A. Mahmood and H. Marukyan and V. Matveev and M. McCaughan and M. McCracken and C. A. Meyer and R. Miskimen and R. E. Mitchell and K. Mizutani and P. Moran and V. Neelamana and L. Ng and E. Nissen and S. Orešić and A. I. Ostrovidov and Z. Papandreou and C. Paudel and R. Pedroni and L. Pentchev and K. J. Peters and E. Prather and L. Puthiya Veetil and S. Rakshit and J. Reinhold and A. Remington and B. G. Ritchie and J. Ritman and G. Rodriguez and D. Romanov and K. Saldana and C. Salgado and S. Schadmand and A. M. Schertz and K. Scheuer and A. Schick and A. Schmidt and R. A. Schumacher and J. Schwiening and M. Scott and N. Septian and P. Sharp and X. Shen and M. R. Shepherd and J. Sikes and A. Smith and E. S. Smith and D. I. Sober and A. Somov and S. Somov and J. R. Stevens and I. I. Strakovsky and B. Sumner and K. Suresh and V. V. Tarasov and S. Taylor and A. Teymurazyan and A. Thiel and T. Viducic and T. Whitlatch and N. Wickramaarachchi and Y. Wunderlich and B. Yu and J. Zarling and Z. Zhang and X. Zhou and B. Zihlmann},
journal= {arXiv preprint arXiv:2501.03091},
year = {2025}
}
备注
8 pages, 4 figures plus supplemental material