Beam Energy Dependence of Triton Production and Yield Ratio (N_{t}×N_{p}/N_{d}^{2}) in Au+Au Collisions at RHIC

M I Abdulhamid¹, B E Aboona², J Adam³, J R Adams⁴, G Agakishiev⁵, I Aggarwal⁶, M M Aggarwal⁶, Z Ahammed⁷, A Aitbaev⁵, I Alekseev^{8

9}, D M Anderson², A Aparin⁵, S Aslam¹⁰, J Atchison¹¹, G S Averichev⁵, V Bairathi¹², W Baker¹³, J G Ball Cap¹⁴, K Barish¹³, P Bhagat¹⁵, A Bhasin¹⁵, S Bhatta¹⁶, I G Bordyuzhin⁸, J D Brandenburg⁴, A V Brandin⁹, X Z Cai¹⁷, H Caines¹⁸, M Calderón de la Barca Sánchez¹⁹, D Cebra¹⁹, J Ceska³, I Chakaberia²⁰, B K Chan²¹, Z Chang²², A Chatterjee²³, D Chen¹³, J Chen²⁴, J H Chen²⁵, Z Chen²⁴, J Cheng²⁶, Y Cheng²¹, S Choudhury²⁵, W Christie²⁷, X Chu²⁷, H J Crawford²⁸, G Dale-Gau²⁹, A Das³, M Daugherity¹¹, T G Dedovich⁵, I M Deppner³⁰, A A Derevschikov³¹, A Dhamija⁶, L Di Carlo³², L Didenko²⁷, P Dixit³³, X Dong²⁰, J L Drachenberg¹¹, E Duckworth³⁴, J C Dunlop²⁷, J Engelage²⁸, G Eppley³⁵, S Esumi³⁶, O Evdokimov²⁹, A Ewigleben³⁷, O Eyser²⁷, R Fatemi³⁸, S Fazio³⁹, C J Feng⁴⁰, Y Feng⁴¹, E Finch⁴², Y Fisyak²⁷, F A Flor¹⁸, C Fu⁴³, F Geurts³⁵, N Ghimire⁴⁴, A Gibson⁴⁵, K Gopal⁴⁶, X Gou²⁴, D Grosnick⁴⁵, A Gupta¹⁵, A Hamed¹, Y Han³⁵, M D Harasty¹⁹, J W Harris¹⁸, H Harrison-Smith³⁸, W He²⁵, X H He⁴⁷, Y He²⁴, C Hu⁴⁷, Q Hu⁴⁷, Y Hu²⁰, H Huang⁴⁰, H Z Huang²¹, S L Huang¹⁶, T Huang²⁹, X Huang²⁶, Y Huang²⁶, Y Huang⁴³, T J Humanic⁴, D Isenhower¹¹, M Isshiki³⁶, W W Jacobs²², A Jalotra¹⁵, C Jena⁴⁶, Y Ji²⁰, J Jia^{27

16}, C Jin³⁵, X Ju⁴⁸, E G Judd²⁸, S Kabana¹², M L Kabir¹³, D Kalinkin³⁸, K Kang²⁶, D Kapukchyan¹³, K Kauder²⁷, H W Ke²⁷, D Keane³⁴, A Kechechyan⁵, M Kelsey³², B Kimelman¹⁹, A Kiselev²⁷, A G Knospe³⁷, H S Ko²⁰, L Kochenda⁹, A A Korobitsin⁵, P Kravtsov⁹, L Kumar⁶, S Kumar⁴⁷, R Kunnawalkam Elayavalli¹⁸, R Lacey¹⁶, J M Landgraf²⁷, A Lebedev²⁷, R Lednicky⁵, J H Lee²⁷, Y H Leung³⁰, N Lewis²⁷, C Li²⁴, W Li³⁵, X Li⁴⁸, Y Li⁴⁸, Y Li²⁶, Z Li⁴⁸, X Liang¹³, Y Liang³⁴, T Lin²⁴, C Liu⁴⁷, F Liu⁴³, H Liu²², H Liu⁴³, L Liu⁴³, T Liu¹⁸, X Liu⁴, Y Liu², Z Liu⁴³, T Ljubicic²⁷, W J Llope³², O Lomicky³, R S Longacre²⁷, E M Loyd¹³, T Lu⁴⁷, N S Lukow⁴⁴, X F Luo⁴³, V B Luong⁵, L Ma²⁵, R Ma²⁷, Y G Ma²⁵, N Magdy¹⁶, D Mallick⁴⁹, S Margetis³⁴, H S Matis²⁰, J A Mazer⁵⁰, G McNamara³², K Mi⁴³, N G Minaev³¹, B Mohanty⁴⁹, M M Mondal⁴⁹, I Mooney¹⁸, D A Morozov³¹, A Mudrokh⁵, M I Nagy⁵¹, A S Nain⁶, J D Nam⁴⁴, Md Nasim³³, D Neff²¹, J M Nelson²⁸, D B Nemes¹⁸, M Nie²⁴, G Nigmatkulov⁹, T Niida³⁶, R Nishitani³⁶, L V Nogach³¹, T Nonaka³⁶, G Odyniec²⁰, A Ogawa²⁷, S Oh⁵², V A Okorokov⁹, K Okubo³⁶, B S Page²⁷, R Pak²⁷, J Pan², A Pandav⁴⁹, A K Pandey⁴⁷, Y Panebratsev⁵, T Pani⁵⁰, P Parfenov⁹, A Paul¹³, C Perkins²⁸, B R Pokhrel⁴⁴, M Posik⁴⁴, T Protzman³⁷, N K Pruthi⁶, J Putschke³², Z Qin²⁶, H Qiu⁴⁷, A Quintero⁴⁴, C Racz¹³, S K Radhakrishnan³⁴, N Raha³², R L Ray⁵³, H G Ritter²⁰, C W Robertson⁴¹, O V Rogachevsky⁵, M A Rosales Aguilar³⁸, D Roy⁵⁰, L Ruan²⁷, A K Sahoo³³, N R Sahoo²⁴, H Sako³⁶, S Salur⁵⁰, E Samigullin⁸, S Sato³⁶, W B Schmidke²⁷, N Schmitz⁵⁴, J Seger⁵⁵, R Seto¹³, P Seyboth⁵⁴, N Shah¹⁰, E Shahaliev⁵, P V Shanmuganathan²⁷, T Shao²⁵, M Sharma¹⁵, N Sharma³³, R Sharma⁴⁶, S R Sharma⁴⁶, A I Sheikh³⁴, D Y Shen²⁵, K Shen⁴⁸, S S Shi⁴³, Y Shi²⁴, Q Y Shou²⁵, F Si⁴⁸, J Singh⁶, S Singha⁴⁷, P Sinha⁴⁶, M J Skoby^{56

41}, Y Söhngen³⁰, Y Song¹⁸, B Srivastava⁴¹, T D S Stanislaus⁴⁵, D J Stewart³², M Strikhanov⁹, B Stringfellow⁴¹, Y Su⁴⁸, C Sun¹⁶, X Sun⁴⁷, Y Sun⁴⁸, Y Sun⁵⁷, B Surrow⁴⁴, D N Svirida⁸, Z W Sweger¹⁹, A Tamis¹⁸, A H Tang²⁷, Z Tang⁴⁸, A Taranenko⁹, T Tarnowsky⁵⁸, J H Thomas²⁰, D Tlusty⁵⁵, T Todoroki³⁶, M V Tokarev⁵, C A Tomkiel³⁷, S Trentalange²¹, R E Tribble², P Tribedy²⁷, O D Tsai^{27

21}, C Y Tsang^{27

34}, Z Tu²⁷, T Ullrich²⁷, D G Underwood^{59

45}, I Upsal³⁵, G Van Buren²⁷, A N Vasiliev^{9

31}, V Verkest³², F Videbæk²⁷, S Vokal⁵, S A Voloshin³², F Wang⁴¹, G Wang²¹, J S Wang⁵⁷, X Wang²⁴, Y Wang⁴⁸, Y Wang⁴³, Y Wang²⁶, Z Wang²⁴, J C Webb²⁷, P C Weidenkaff³⁰, G D Westfall⁵⁸, H Wieman²⁰, G Wilks²⁹, S W Wissink²², J Wu⁴³, J Wu⁴⁷, X Wu²¹, Y Wu¹³, B Xi¹⁷, Z G Xiao²⁶, G Xie⁶⁰, W Xie⁴¹, H Xu⁵⁷, N Xu²⁰, Q H Xu²⁴, Y Xu²⁴, Y Xu⁴³, Z Xu²⁷, Z Xu²¹, G Yan²⁴, Z Yan¹⁶, C Yang²⁴, Q Yang²⁴, S Yang⁶¹, Y Yang⁴⁰, Z Ye³⁵, Z Ye²⁹, L Yi²⁴, K Yip²⁷, N Yu⁴³, Y Yu²⁴, W Zha⁴⁸, C Zhang¹⁶, D Zhang⁴³, J Zhang²⁴, S Zhang⁴⁸, X Zhang⁴⁷, Y Zhang⁴⁷, Y Zhang⁴⁸, Y Zhang⁴³, Z J Zhang⁴⁰, Z Zhang²⁷, Z Zhang²⁹, F Zhao⁴⁷, J Zhao²⁵, M Zhao²⁷, C Zhou²⁵, J Zhou⁴⁸, S Zhou⁴³, Y Zhou⁴³, X Zhu²⁶, M Zurek^{59

27}, M Zyzak⁶²; STAR Collaboration

Affiliations

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

PMID: 37267557
DOI: 10.1103/PhysRevLett.130.202301

Beam Energy Dependence of Triton Production and Yield Ratio (N_{t}×N_{p}/N_{d}^{2}) in Au+Au Collisions at RHIC

M I Abdulhamid et al. Phys Rev Lett. 2023.

. 2023 May 19;130(20):202301.

doi: 10.1103/PhysRevLett.130.202301.

Authors

Affiliations

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

PMID: 37267557
DOI: 10.1103/PhysRevLett.130.202301

Abstract

We report the triton (t) production in midrapidity (|y|<0.5) Au+Au collisions at sqrt[s_{NN}]=7.7-200 GeV measured by the STAR experiment from the first phase of the beam energy scan at the Relativistic Heavy Ion Collider. The nuclear compound yield ratio (N_{t}×N_{p}/N_{d}^{2}), which is predicted to be sensitive to the fluctuation of local neutron density, is observed to decrease monotonically with increasing charged-particle multiplicity (dN_{ch}/dη) and follows a scaling behavior. The dN_{ch}/dη dependence of the yield ratio is compared to calculations from coalescence and thermal models. Enhancements in the yield ratios relative to the coalescence baseline are observed in the 0%-10% most central collisions at 19.6 and 27 GeV, with a significance of 2.3σ and 3.4σ, respectively, giving a combined significance of 4.1σ. The enhancements are not observed in peripheral collisions or model calculations without critical fluctuation, and decreases with a smaller p_{T} acceptance. The physics implications of these results on the QCD phase structure and the production mechanism of light nuclei in heavy-ion collisions are discussed.

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Beam Energy Dependence of Triton Production and Yield Ratio (N_{t}×N_{p}/N_{d}^{2}) in Au+Au Collisions at RHIC

Affiliations

Beam Energy Dependence of Triton Production and Yield Ratio (N_{t}×N_{p}/N_{d}^{2}) in Au+Au Collisions at RHIC

Authors

Affiliations

Abstract

LinkOut - more resources

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