Measurement of Two-Point Energy Correlators within Jets in <mml:math xmlns:mml="http://www.w3.org/1998/Math/MathML" display="inline"><mml:mi>p</mml:mi><mml:mo>+</mml:mo><mml:mi>p</mml:mi></mml:math> Collisions at <mml:math xmlns:mml="http://www.w3.or

Hard-scattered partons ejected from high-energy proton-proton collisions undergo parton shower and hadronization, resulting in collimated collections of particles that are clustered into jets. A substructure observable that highlights the transition between the perturbative and nonperturbative regimes of jet evolution in terms of the angle between two particles is the two-point energy correlator (EEC). In this Letter, the first measurement of the EEC at RHIC is presented, using data taken from 200 GeV p+p collisions by the STAR experiment. The EEC is measured both for all the pairs of particles in jets and separately for pairs with like and opposite electric charges. These measurements demonstrate that the transition between perturbative and nonperturbative effects occurs within an angular region that is consistent with expectations of a universal hadronization regime that scales with jet momentum for a given initiator flavor. Additionally, a deviation from Monte Carlo predictions at small angles in the charge-selected sample could result from mechanics of hadronization not fully captured by current models.

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Journal
Physical Review Letters
Published
2025-09-10
DOI
https://doi.org/10.1103/wv2t-dkgn
Citations
3
Primary Topic
Particle physics theoretical and experimental studies
Type
article
Field-Weighted Citation Impact
5.61

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article

Measurement of Two-Point Energy Correlators within Jets in <mml:math xmlns:mml="http://www.w3.org/1998/Math/MathML" display="inline"><mml:mi>p</mml:mi><mml:mo>+</mml:mo><mml:mi>p</mml:mi></mml:math> Collisions at <mml:math xmlns:mml="http://www.w3.or

S. Sato, F. Videbæk, X. Dong, C. W. Robertson et al.
3 citations
Physical Review Letters
Particle physics theoretical and experimental studies
5.61
article

Measurement of Two-Point Energy Correlators within Jets in <mml:math xmlns:mml="http://www.w3.org/1998/Math/MathML" display="inline"><mml:mi>p</mml:mi><mml:mo>+</mml:mo><mml:mi>p</mml:mi></mml:math> Collisions at <mml:math xmlns:mml="http://www.w3.or

S. Sato, F. Videbæk, X. Dong, C. W. Robertson, A. S. Nain, J. C. Webb, D. Torres Valladares, K. Wang, Brian C. Schaefer, Z. Liu, D. Chen, G. Dale-Gau, X. Gou, A. Bhasin, G. Eppley, Alisher Aitbayev, J. Engelage, S. Yang, T. L. Protzman, Z. Zhang, C. Larson, N. R. Sahoo, D. Kapukchyan, Ya-jin Zhou, X. F. Luo, G. Wilks, A. Gibson, M. Strikhanov, G. Wang, Z. Ahammed, M. Żurek, J. H. Thomas, V. B. Luong, Y. Wang, K. Kauder, W. Li, L. Yi, E. Duckworth, P. Kravtsov, T. Nonaka, D. N. Svirida, V. Bairathi, A. Vasiliev, B. A. Trzeciak, Aman Dimri, M. Isshiki, I. Aggarwal, Y. H. Leung, Sayan Prodhan, Neetika Sharma, Gaogang Xie, X. Ju, K. Okubo, C. Naim, H. Li, Seth J. Corey, J. Bielčík, Z. W. Sweger, T. G. Dedovich, B. Kórodi, A. V. Brandin, B. R. Pokhrel, J. Atchison, X. Zhang, K. Gopal, B. Xi, Naresh Jindal, Y. Söhngen, M. Zyzak, S. Sambyal, J. L. Drachenberg, C. Racz, A. A. Korobitsin, W. Christie, Y. Li, A. Aparin, A. Pandav, S. B. Oh, Chenguo Hu, H. Z. Huang, T. Shao, G. Nigmatkulov, H-S. Li, A. V. Povarov, X. Han, J. H. Lee, R. Lednický, A. Deshpande, M. D. Harasty, R. Manikandhan, J. H. Chen, Metin Kesler, B. Kim, D. Y. Shen, A. Dhamija, H. Sako, J. Singh, A. Yu. Kraeva, John E. Tyler, J. S. Wang, K. H. Kang, L. Li, C. Y. Tsang, O. Eyser, C. Fu, J. C. Dunlop, Y. Huang, Yuqing Xu, O. V. Rogachevsky, T. Tarnowsky, Richard Hamilton, A. Kechechyan, V. A. Okorokov, Yanjing Su, Y. Fisyak, Zhihe Zhao, T. Huang, A. C. Tamis, Z. Chen, J. Zhao, K. N. Barish, M. M. Aggarwal, R. Seto, Y. G., B. Mohanty, Tong Gao, T. Pani, E. Alpatov, C. Zhang, W. Xu, P. Tribedy, S. L. Huang, J. Ceska, Xiaoming Bao, S. Zhang, A. Paul, Sayantan Sharma, B. S. Page, Yujun Shi, Z. Tang, D. Keane, P. Sinha, P. Bhagat, E. Samigullin, I. Alekseev, S. Fazio, B. E. Aboona, K. Shen, O. Matonoha, D. M. Li, D. Zhang, Z. Zhang, E. Finch, Chao Liu, E. Loyd, J. K. Sandhu, T. Ullrich, J. M. Nelson, Ajay Rana, H. Liu, C. Jena, O. Lomicky, L. Kochenda, G. Liu, T. Lin, W. W. Jacobs, O. Evdokimov, F. Si, Z. G. Xiao, S. W. Wissink, Sebouh J. Paul, H. Z. Huang, J. Bielcikova, S. Bhatta, H. Harrison-Smith, M. C. Labonte, O. Mezhanska, C. Broodo, E. G. Pottebaum, E. Nedorezov, Xin Wu, Xinhua Wang, Qian Chen, Chao Jin, L. Liu, Z. Li, Y. Yu, L. Kumar, N. Xu, Z. Ye, X. Sun, Lin Yuan, I. Mooney, Archana Sahoo, N. Shah, Shaolin Zhou, Y. He, Arpita Das, Ting Fu, S. S. Shi, A. K. Pandey, Y. Ji, X. Z. Cai, Tingting Lu, P. Parfenov, J. Wang, X. H. He, P. C. Weidenkaff, M. V. Tokarev, E. Shahaliev, Y. Panebratsev, Z. Wang, Y. Xu, S. Singha, C. Perkins, M. Sharma, S. Vokal, Z. Qin, R. S. Longacre, R. L. Ray, A. Hamed, S. Margetis, A. Chatterjee, S. A. Voloshin, D. A. Morozov, D. G. Underwood, J. Luo, An Gu, G. Van Buren, L. Ruan, J. Seger, Sevil Salur, A. Ogawa, D. Cebra, I. G. Bordyuzhin, R. Sharma, Xianglei Zhu, J. M. Landgraf, F. J. M. Geurts, N. G. Minaev, A. Gupta, S. K. Radhakrishnan, M. A. Rosales Aguilar, J. D. Nam, J. D. Brandenburg, G. Yan, A. Jalotra, D. Kalinkin, A. H. Tang, A. Taranenko, Z. Xu, H. J. Crawford, A. A. Derevschikov, J. Zhang, D. Grosnick, N. Schmitz, M. J. Skoby, R. Lacey, Q. Hu, B. Surrow, Y. Sun, H. Caines, Y. Wang, E. G. Judd, H. Qiu, J. Cheng, G. S. Averichev, S. K. Pal, H. Xu, L. B. Havener, J. Adam, Md. Nasim, J. Putschke, I. Deppner, R. Ma, N. K. Pruthi, W. Zha, M. I. Nagy, X. Li, Y. Feng, S. C. Behera, Y. Cheng, I. Chakaberia, Q. Yang, J. W. Harris, B. Mondal, C. P. Wong, T. D. S. Stanislaus, Z. Yan, J. Wu, X. Chu, F. Zhao, A. Kiselev, A. I. Sheikh, Y. Zhang, Yi Yang, N. Magdy, T. Niida, G. Odyniec, S. Trentalange, Z. Tu, R. Fatemi, M. Posik, M. Nie, S. Esumi, P. Dixit, F. Flor, A. Khanal, M. Calderón de la Barca Sánchez, S. Aslam, O. D. Tsai, Yanlin Song, K. Mi, S. Kabana, G. D. Westfall, P. Seyboth, A. Lebedev, M. M. Mondal, A. G. Knospe, P. V. Shanmuganathan, A. K. Panday, I. R. C. A. Pinto, L. V. Nogach, Y. S. Chang, T. Ljubičić, D. Y. Shen, H. Wieman, W. Xie, D. Tlusty, Y. Hu, Z. Li, D. Roy, W. Zhang, X. Liang, C. Yang, H. Nasrulloh, A. K. Alshammri, J. JJia
article en
3 citations

Abstract

Hard-scattered partons ejected from high-energy proton-proton collisions undergo parton shower and hadronization, resulting in collimated collections of particles that are clustered into jets. A substructure observable that highlights the transition between the perturbative and nonperturbative regimes of jet evolution in terms of the angle between two particles is the two-point energy correlator (EEC). In this Letter, the first measurement of the EEC at RHIC is presented, using data taken from 200 GeV p+p collisions by the STAR experiment. The EEC is measured both for all the pairs of particles in jets and separately for pairs with like and opposite electric charges. These measurements demonstrate that the transition between perturbative and nonperturbative effects occurs within an angular region that is consistent with expectations of a universal hadronization regime that scales with jet momentum for a given initiator flavor. Additionally, a deviation from Monte Carlo predictions at small angles in the charge-selected sample could result from mechanics of hadronization not fully captured by current models.

Physical Review LettersVol. 135(11)
Rutgers, The State University of New Jersey (US), University of California, Riverside (US), Eötvös Loránd University (HU), Creighton University (US), University of Science and Technology of China (CN), Indian Institute of Science Education and Research Kolkata (IN), Variable Energy Cyclotron Centre (IN), Argonne National Laboratory (US), Indian Institute of Technology Patna (IN), State University of New York (US), University of Kentucky (US), University of Jammu (IN), University of Tsukuba (JP), Lawrence Berkeley National Laboratory (US), Valparaiso University (US), Kent State University (US), Shandong University (CN), National Institute of Technology Durgapur (IN), Chongqing University (CN), University of California, Los Angeles (US), National Institute of Science Education and Research (IN), Indian Institute of Science Education and Research Mohali (IN), Wayne State University (US), University of Tarapacá (CL), Lehigh University (US), South China Normal University (CN), Ball State University (US), Chinese Academy of Sciences (CN), Brookhaven National Laboratory (US), Purdue University West Lafayette (US), Heidelberg University (DE), Fudan University (CN), Kurchatov Institute (RU), Temple College (US), Mitchell Institute (US), Frankfurt Institute for Advanced Studies (DE), University of California System (US), Sejong University (KR), Indian Institute of Science Education and Research, Bhopal (IN), Guangxi Normal University (CN), Huzhou Normal University (CN), Joint Institute for Nuclear Research (RU), Yale University (US), Southern Connecticut State University (US), University of Illinois Chicago (US), Central China Normal University (CN), Max Planck Institute for Physics (DE), Rutgers Sexual and Reproductive Health and Rights (NL), Indian Institute of Science Education and Research Berhampur (IN), Institute for Theoretical and Experimental Physics (RU), Indiana University Bloomington (US), Shanghai Institute of Applied Physics (CN), Institute of Modern Physics (CN), Indian Institute of Science Education and Research, Tirupati (IN), Czech Academy of Sciences, Nuclear Physics Institute (CZ), University of Chinese Academy of Sciences (CN), Wuhan University of Science and Technology (CN), University of Houston (US), Czech Technical University in Prague (CZ), University of Calabria (IT), Texas Southern University (US), Panjab University (IN), The Ohio State University (US), Indiana University (US), Stony Brook University (US), Abilene Christian University (US), Rice University (US), Lanzhou University (CN), American University in Cairo (EG), University of California, Davis (US), Temple University (US), Academia Sinica (TW), Heidelberg University (US), The University of Texas at Austin (US), Michigan State University (US), National Research Nuclear University MEPhI (RU), Texas A&M University (US), National Cheng Kung University (TW), University of California, Berkeley (US), Tsinghua University (CN)
National Science Foundation, U.S. Department of Energy, National Energy Research Scientific Computing Center, Steno Diabetes Center Copenhagen, National Research Foundation, Ministry of Education, Culture, Sports, Science and Technology, National Natural Science Foundation of China, Grantová Agentura České Republiky, Bundesministerium für Bildung und Forschung, National Research Foundation of Korea, Emberi Eroforrások Minisztériuma, National Science and Technology Council, Office of Science, Japan Society for the Promotion of Science, National Research, Development and Innovation Office, Nuclear Physics, Lawrence Berkeley National Laboratory
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Particle physics theoretical and experimental studies
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