Study of Central Exclusive Production of π+π−, K+K− and $$p\overline{p }$$ pairs in proton-proton collisions at $$\sqrt{s}=510$$ GeV with the STAR detector at RHIC

作者：B. E. Aboona, Jaroslav Adam, L. Adamczyk, I. Aggarwal, Madan Mohan Aggarwal, Z. Ahammed, A. K. Alshammri, E. C. Aschenauer, S. Aslam, Joseph Atchison, V. Bairathi, X. Bao, P. Barik, K. N. Barish, S. Behera, R. Bellwied, Pratibha Bhagat, A. Bhasin, S. Bhatta, S. Bhosale, J. Bielčík, J. Bielčíková, J. D. Brandenburg, C. Broodo, X. Z. Cai, H. Caines, M. Calderon De La Barca Sanchez, D. Cebra, J. Ceska, I. Chakaberia, P. Chaloupka, Y. S. Chang, Z. Chang, A. Chatterjee, D. Chen, Jinhui Chen, L. Chen, Q. Chen, W. Chen, Z. Chen, J. Cheng, Yunshan Cheng, W. Christie, X. Chu, S. Corey, H. J. Crawford, M. Csanád, G. Dale-Gau, Ayanabha Das, D. S. Lemos, I. Deppner, A. Deshpande, A. Dhamija, Aman Dimri, Prabhupada Dixit, X. Dong, J. L. Drachenberg, E. Duckworth, J. C. Dunlop, Yousif Shabaan El-Feky, J. Engelage, G. Eppley, ShinIchi Esumi, O. Evdokimov, O. Eyser, B. Fan, Y. Fang, R. Fatemi, S. Fazio, H. Feng, Y. Feng, E. Finch, Y. Fisyak, F. Flor, B. Fu, C. Fu, T. Fu, C. A. Gagliardi, T. Galatyuk, Gao, T. Gao, Gabriel Garcia Guardiano, F. J. M. Geurts, A. Gibson, A. Giri, K. Gopal, X. Gou, D. Grosnick, Abraham Mathew Koshy, Gu Jm, A. Gupta, W. Guryn, A. Hamed, R. J. Hamilton, J. Han, X. Han, S. Harabasz, M. D. Harasty, John William Harris, H. Harrison-Smith, L. B. Havener, X. H. He, Y. He, N. Herrmann, L. Holub, C. Hu, Qingyuan Hu, Y. Hu, H. Huang, H. Z. Huang, S. Huang, T. Huang, Y. Huang, Y. Huang, Y Huang, M. Isshiki, W. W. Jacobs, A. Jalotra, C. Jena, A. Jentsch, Y. Ji, J. Jia, X. Jiang, C. Jin, Y. Jin, Nicholas Jindal, X Y Ju, E. G. Judd, S. Kabana, D. Kalinkin, J. Kang, K. Kang, A. R. Kanuganti, D. Kapukchyan, K. Kauder, D. Keane, M. Kesler, A. Khanal, A. Khanal, Y. V. Khyzhniak, D. P. Kikoła, J. Kim, D. Kincses, I. Kisel, A. Kiselev, A. G. Knospe, J. Kolas, Y. Kong, B. Kórodi, Leszek Kosarzewski, L. Kumar, M. C. Labonte, R. Lacey, J. M. Landgraf, C. Larson, J. Lauret, A. Lebedev, J. H. Lee, Y. H. Leung, C. Li, Dongsheng Li, H-S. Li, Hanlin Li, Hui Li, Hongcan Li, W. Li, Xinbai Li, Xiujun Li, Y. Li, Z. Li, Ziyang Li, X. Liang, R. Licenik, T. Lin, Y. Lin, M. A. Lisa, C. Liu, G. Liu, Hui Liu, Like Liu, Lu-Meng Liu, Z. Liu, Zuowen Liu, T. Ljubicic, O. Lomicky, E. Loyd, Tan Lu, J. Luo, X. Luo, L. Ma, Rongrong Ma, Y. G., N. Magdy, D. Mallick, R. Manikandhan, C. Markert, O. Matonoha, Mccallips, K. Menduli, K. Mi, S. Mioduszewski, B. Mohanty, B. Mondal, M. M. Mondal, I. Mooney, J. Mrazkova, M. I. Nagy, C. Naim, A. S. Nain, J. D. Nam, Md. Nasim, H. Nasrulloh, K. Nayak, J. M. Nelson, M. Nie, G. Nigmatkulov, T. Niida, Toshihiro Nonaka, G. Odyniec, A. Ogawa, S. Oh, K. Okubo, B. S. Page, M. Pal, S. Pal, A. Pandav, A. Panday, A. K. Pandey, T. Pani, A. Paul, S. Paul, D. Pawlowska, C. Perkins, S. Ping, J Pluta, I. Ponce, M. Posik, E. G. Pottebaum, S. Prodhan, T. L. Protzman, A. Prozorov, V. Prozorova, N. K. Pruthi, M. Przybycień, J. Putschke, Y. Qi, Z. Qin, Hao Bo Qiu, S. K. Radhakrishnan, Abhishek Rana, R. L. Ray, R. Reed, C. W. Robertson, M. Robotkova, M. A. Rosales Aguilar, D. Roy, P. Chowdhury, L. Ruan, A. K. Sahoo, N. R. Sahoo, H. Sako, S. Salur, S. Sambyal, Tunde Daniel Samuel, J. K. Sandhu, S. Sato, B. Schaefer, F. Seck, Janet Elizabeth Seger, R. Seto, P. Seyboth, N. Shah, P. V. Shanmuganathan, T. Shao, M. Sharma, Rishabh Sharma, Sharang Rav Sharma, Ashik Ikbal Sheikh, D. Shen, D. Y. Shen, K. Shen, S. S. Shi, Y. Shi, Shilpa, E. Shulga, F. Si, Jyotsna Singh, Subhash Singha, P. Sinha, M. J. Skoby, N. Smirnov, Y. Soehngen, Y. Song, T. D. S. Stanislaus, M. Stefaniak, Y. Su, M. Šumbera, X. Sun, Y. Sun, B. Surrow, M. Svoboda, Z. W. Sweger, Andrew Tamis, Aihong Tang, Z. Tang, Tanner, Terence Tarnowsky, J. H. Thomas, A. R. Timmins, D. Tlusty, Daniel Torres-Valladares, S. Trentalange, Prithwish Tribedy, S. K. Tripathy, T. Truhlář, B. A. Trzeciak, O. D. Tsai, C. Y. Tsang, Zhoudunming Tu, J. E. Tyler, T. Ullrich, D. G. Underwood, G. Van Buren, J. Vanek, I. Vassiliev, F. Videbæk, S. A. Voloshin, M. Vranovský, F. Wang, Gang Wang, G Wang, Yi-Xiang Wang, J. Wang, K. Wang, Xiaofeng Wang, Yan Wang, Yaping Wang, Yi Wang, Z. Wang, Z. Y. Wang, Z. Y. Wang, A. J. Wątroba, J. C. Webb, P. C. Weidenkaff, G. D. Westfall, D. Wielanek, H. Wieman, G. Wilks, S. W. Wissink, R. Witt, C. P. Wong, Junlin Wu, Xiatong Wu, Xin Wu, X. Wu, B. Xi, Y. L. Xiao, Zhigang Xiao, G. Xie, W. Xie, H. Xu, Nu Xu, Qinghua Xu, X. Xu, Y. Xu, Y. Xu, Y. Xu, Y. Xu, N. Xu, Zhiwan Xu, G. Yan, Z. Yan, C. Yang, Qian Yang, S. Yang, Yi Yang, Zaochen Ye, Z. Ye, L. Yi, Y. Yu, W. Yuan, H. Zbroszczyk, W. Zha, C. Zhang, D. Zhang, Jinlong Zhang, K. Zhang, L H Zhang, Shenghui Zhang, W. Zhang, Xi Zhang, Yapeng Zhang, Yifei Zhang, Y H Zhang, Yu Zhang, Z. Zhang, Z. Zhang, F. Zhao, J. Zhao, S. Zhou, Y Zhou, C. Zhu, X. Zhu, M. Zyzak · 发表于：Journal of High Energy Physics · 年份：2026 · DOI：10.1007/jhep07(2026)143 · 研究领域：High-Energy Particle Collisions Research、Particle physics theoretical and experimental studies、Quantum Chromodynamics and Particle Interactions

A bstract We report on the first measurement of the Central Exclusive Production process in proton-proton collisions: pp → ph + h − p (where h = π , K , p ) at the center-of-mass energy $$\sqrt{s}=510$$ GeV with the STAR experiment at RHIC. At this energy, the process is dominated by a double Pomeron exchange mechanism. Hence, it provides a clean environment for investigating Pomeron interactions by measuring fully reconstructed final states involving only two hadrons and two forward scattered protons. The oppositely charged hadron pairs are measured within the central detector of STAR. The forward scattered protons are measured in the Roman Pot system allowing the verification of the event’s exclusivity. Differential fiducial cross sections within the STAR acceptance are presented as a function of the difference in the azimuthal angle between the outgoing protons. The invariant masses of the charged hadron pairs are measured up to approximately 3 GeV and the square of the four-momentum transfer ( t 1 and t 2 ) of the two forward-scattered protons in the range 0.3 GeV 2 < − t 1 , − t 2 < 1.6 GeV 2 . The differential fiducial cross sections of the forward protons as a function of the | t 1 + t 2 | are also presented. All results for the π + π − pair are presented in three mass ranges. A comparison with GRANIITTI Monte Carlo predictions are also presented, where the spectra include continuum and resonant contributions. The observed spectra are consistent with double Pomer...