Measurement of Two-Point Energy Correlators within Jets in p+p Collisions at sqrt[s]=200 GeV
Affiliations
- 1 Texas A&M University, College Station, Texas 77843.
- 2 Czech Technical University in Prague, FNSPE, Prague 115 19, Czech Republic.
- 3 Joint Institute for Nuclear Research, Dubna 141 980.
- 4 Panjab University, Chandigarh 160014, India.
- 5 Variable Energy Cyclotron Centre, Kolkata 700064, India.
- 6 Alikhanov Institute for Theoretical and Experimental Physics NRC "Kurchatov Institute", Moscow 117218.
- 7 National Research Nuclear University MEPhI, Moscow 115409.
- 8 Kent State University, Kent, Ohio 44242.
- 9 Fudan University, Shanghai 200433.
- 10 Abilene Christian University, Abilene, Texas 79699.
- 11 Instituto de Alta Investigación, Universidad de Tarapacá, Arica 1000000, Chile.
- 12 Shandong University, Qingdao, Shandong 266237.
- 13 University of California, Riverside, California 92521.
- 14 Indian Institute of Science Education and Research (IISER) Tirupati, Tirupati 517507, India.
- 15 University of Jammu, Jammu 180001, India.
- 16 State University of New York, Stony Brook, New York 11794.
- 17 Nuclear Physics Institute of the CAS, Rez 250 68, Czech Republic.
- 18 The Ohio State University, Columbus, Ohio 43210.
- 19 University of Houston, Houston, Texas 77204.
- 20 Shanghai Institute of Applied Physics, Chinese Academy of Sciences, Shanghai 201800.
- 21 Yale University, New Haven, Connecticut 06520.
- 22 University of California, Davis, California 95616.
- 23 Lawrence Berkeley National Laboratory, Berkeley, California 94720.
- 24 Purdue University, West Lafayette, Indiana 47907.
- 25 Indiana University, Bloomington, Indiana 47408.
- 26 National Institute of Technology Durgapur, Durgapur - 713209, India.
- 27 Guangxi Normal University, Guilin 541004.
- 28 Tsinghua University, Beijing 100084.
- 29 University of California, Los Angeles, California 90095.
- 30 Brookhaven National Laboratory, Upton, New York 11973.
- 31 University of California, Berkeley, California 94720.
- 32 University of Illinois at Chicago, Chicago, Illinois 60607.
- 33 University of Heidelberg, Heidelberg 69120, Germany.
- 34 NRC "Kurchatov Institute," Institute of High Energy Physics, Protvino 142281.
- 35 Indian Institute of Science Education and Research (IISER), Berhampur 760010, India.
- 36 Rice University, Houston, Texas 77251.
- 37 University of Tsukuba, Tsukuba, Ibaraki 305-8571, Japan.
- 38 University of Kentucky, Lexington, Kentucky 40506-0055.
- 39 University of Calabria & INFN-Cosenza, Rende 87036, Italy.
- 40 Southern Connecticut State University, New Haven, Connecticut 06515.
- 41 Institute of Modern Physics, Chinese Academy of Sciences, Lanzhou, Gansu 730000.
- 42 Valparaiso University, Valparaiso, Indiana 46383.
- 43 Huzhou University, Huzhou, Zhejiang 313000.
- 44 American University in Cairo, New Cairo 11835, Egypt.
- 45 University of Chinese Academy of Sciences, Beijing 101408.
- 46 Academia Sinica, Nankang, 115.
- 47 National Cheng Kung University, Tainan 70101.
- 48 ELTE Eötvös Loránd University, Budapest, Hungary H-1117.
- 49 Central China Normal University, Wuhan, Hubei 430079.
- 50 University of Science and Technology of China, Hefei, Anhui 230026.
- 51 Wayne State University, Detroit, Michigan 48201.
- 52 Lehigh University, Bethlehem, Pennsylvania 18015.
- 53 Wuhan University of Science and Technology, Wuhan, Hubei 430065.
- 54 South China Normal University, Guangzhou, Guangdong 510631.
- 55 Texas Southern University, Houston, Texas, 77004.
- 56 National Institute of Science Education and Research, HBNI, Jatni 752050, India.
- 57 Temple University, Philadelphia, Pennsylvania 19122.
- 58 Sejong University, Seoul 05006, South Korea.
- 59 Rutgers University, Piscataway, New Jersey 08854.
- 60 University of Texas, Austin, Texas 78712.
- 61 Max-Planck-Institut für Physik, Munich 80805, Germany.
- 62 Creighton University, Omaha, Nebraska 68178.
- 63 Indian Institute Technology, Patna, Bihar 801106, India.
- 64 Ball State University, Muncie, Indiana 47306.
- 65 Michigan State University, East Lansing, Michigan 48824.
- 66 Argonne National Laboratory, Argonne, Illinois 60439.
- 67 Chongqing University, Chongqing 401331.
- 68 Lanzhou University, Lanzhou 730000.
- 69 Frankfurt Institute for Advanced Studies FIAS, Frankfurt 60438, Germany.
- PMID: 41004742
- DOI: 10.1103/wv2t-dkgn
Measurement of Two-Point Energy Correlators within Jets in p+p Collisions at sqrt[s]=200 GeV
Authors
Affiliations
- 1 Texas A&M University, College Station, Texas 77843.
- 2 Czech Technical University in Prague, FNSPE, Prague 115 19, Czech Republic.
- 3 Joint Institute for Nuclear Research, Dubna 141 980.
- 4 Panjab University, Chandigarh 160014, India.
- 5 Variable Energy Cyclotron Centre, Kolkata 700064, India.
- 6 Alikhanov Institute for Theoretical and Experimental Physics NRC "Kurchatov Institute", Moscow 117218.
- 7 National Research Nuclear University MEPhI, Moscow 115409.
- 8 Kent State University, Kent, Ohio 44242.
- 9 Fudan University, Shanghai 200433.
- 10 Abilene Christian University, Abilene, Texas 79699.
- 11 Instituto de Alta Investigación, Universidad de Tarapacá, Arica 1000000, Chile.
- 12 Shandong University, Qingdao, Shandong 266237.
- 13 University of California, Riverside, California 92521.
- 14 Indian Institute of Science Education and Research (IISER) Tirupati, Tirupati 517507, India.
- 15 University of Jammu, Jammu 180001, India.
- 16 State University of New York, Stony Brook, New York 11794.
- 17 Nuclear Physics Institute of the CAS, Rez 250 68, Czech Republic.
- 18 The Ohio State University, Columbus, Ohio 43210.
- 19 University of Houston, Houston, Texas 77204.
- 20 Shanghai Institute of Applied Physics, Chinese Academy of Sciences, Shanghai 201800.
- 21 Yale University, New Haven, Connecticut 06520.
- 22 University of California, Davis, California 95616.
- 23 Lawrence Berkeley National Laboratory, Berkeley, California 94720.
- 24 Purdue University, West Lafayette, Indiana 47907.
- 25 Indiana University, Bloomington, Indiana 47408.
- 26 National Institute of Technology Durgapur, Durgapur - 713209, India.
- 27 Guangxi Normal University, Guilin 541004.
- 28 Tsinghua University, Beijing 100084.
- 29 University of California, Los Angeles, California 90095.
- 30 Brookhaven National Laboratory, Upton, New York 11973.
- 31 University of California, Berkeley, California 94720.
- 32 University of Illinois at Chicago, Chicago, Illinois 60607.
- 33 University of Heidelberg, Heidelberg 69120, Germany.
- 34 NRC "Kurchatov Institute," Institute of High Energy Physics, Protvino 142281.
- 35 Indian Institute of Science Education and Research (IISER), Berhampur 760010, India.
- 36 Rice University, Houston, Texas 77251.
- 37 University of Tsukuba, Tsukuba, Ibaraki 305-8571, Japan.
- 38 University of Kentucky, Lexington, Kentucky 40506-0055.
- 39 University of Calabria & INFN-Cosenza, Rende 87036, Italy.
- 40 Southern Connecticut State University, New Haven, Connecticut 06515.
- 41 Institute of Modern Physics, Chinese Academy of Sciences, Lanzhou, Gansu 730000.
- 42 Valparaiso University, Valparaiso, Indiana 46383.
- 43 Huzhou University, Huzhou, Zhejiang 313000.
- 44 American University in Cairo, New Cairo 11835, Egypt.
- 45 University of Chinese Academy of Sciences, Beijing 101408.
- 46 Academia Sinica, Nankang, 115.
- 47 National Cheng Kung University, Tainan 70101.
- 48 ELTE Eötvös Loránd University, Budapest, Hungary H-1117.
- 49 Central China Normal University, Wuhan, Hubei 430079.
- 50 University of Science and Technology of China, Hefei, Anhui 230026.
- 51 Wayne State University, Detroit, Michigan 48201.
- 52 Lehigh University, Bethlehem, Pennsylvania 18015.
- 53 Wuhan University of Science and Technology, Wuhan, Hubei 430065.
- 54 South China Normal University, Guangzhou, Guangdong 510631.
- 55 Texas Southern University, Houston, Texas, 77004.
- 56 National Institute of Science Education and Research, HBNI, Jatni 752050, India.
- 57 Temple University, Philadelphia, Pennsylvania 19122.
- 58 Sejong University, Seoul 05006, South Korea.
- 59 Rutgers University, Piscataway, New Jersey 08854.
- 60 University of Texas, Austin, Texas 78712.
- 61 Max-Planck-Institut für Physik, Munich 80805, Germany.
- 62 Creighton University, Omaha, Nebraska 68178.
- 63 Indian Institute Technology, Patna, Bihar 801106, India.
- 64 Ball State University, Muncie, Indiana 47306.
- 65 Michigan State University, East Lansing, Michigan 48824.
- 66 Argonne National Laboratory, Argonne, Illinois 60439.
- 67 Chongqing University, Chongqing 401331.
- 68 Lanzhou University, Lanzhou 730000.
- 69 Frankfurt Institute for Advanced Studies FIAS, Frankfurt 60438, Germany.
- PMID: 41004742
- DOI: 10.1103/wv2t-dkgn
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.