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First Measurement of Λ_{c} Baryon Production in Au+Au Collisions at sqrt[s_{NN}]=200 GeV.
Adam, J; Adamczyk, L; Adams, J R; Adkins, J K; Agakishiev, G; Aggarwal, M M; Ahammed, Z; Alekseev, I; Anderson, D M; Aparin, A; Aschenauer, E C; Ashraf, M U; Atetalla, F G; Attri, A; Averichev, G S; Bairathi, V; Barish, K; Behera, A; Bellwied, R; Bhasin, A; Bielcik, J; Bielcikova, J; Bland, L C; Bordyuzhin, I G; Brandenburg, J D; Brandin, A V; Butterworth, J; Caines, H; Calderón de la Barca Sánchez, M; Cebra, D; Chakaberia, I; Chaloupka, P; Chan, B K; Chang, F-H; Chang, Z; Chankova-Bunzarova, N; Chatterjee, A; Chen, D; Chen, J H; Chen, X; Chen, Z; Cheng, J; Cherney, M; Chevalier, M; Choudhury, S; Christie, W; Crawford, H J; Csanád, M; Daugherity, M; Dedovich, T G.
Afiliação
  • Adam J; Brookhaven National Laboratory, Upton, New York 11973.
  • Adamczyk L; AGH University of Science and Technology, FPACS, Cracow 30-059, Poland.
  • Adams JR; Ohio State University, Columbus, Ohio 43210.
  • Adkins JK; University of Kentucky, Lexington, Kentucky 40506-0055.
  • Agakishiev G; Joint Institute for Nuclear Research, Dubna 141 980, Russia.
  • Aggarwal MM; Panjab University, Chandigarh 160014, India.
  • Ahammed Z; Variable Energy Cyclotron Centre, Kolkata 700064, India.
  • Alekseev I; Alikhanov Institute for Theoretical and Experimental Physics NRC "Kurchatov Institute," Moscow 117218, Russia.
  • Anderson DM; National Research Nuclear University MEPhI, Moscow 115409, Russia.
  • Aparin A; Texas A&M University, College Station, Texas 77843.
  • Aschenauer EC; Joint Institute for Nuclear Research, Dubna 141 980, Russia.
  • Ashraf MU; Brookhaven National Laboratory, Upton, New York 11973.
  • Atetalla FG; Central China Normal University, Wuhan, Hubei 430079.
  • Attri A; Kent State University, Kent, Ohio 44242.
  • Averichev GS; Panjab University, Chandigarh 160014, India.
  • Bairathi V; Joint Institute for Nuclear Research, Dubna 141 980, Russia.
  • Barish K; Indian Institute of Science Education and Research (IISER), Berhampur 760010, India.
  • Behera A; University of California, Riverside, California 92521.
  • Bellwied R; State University of New York, Stony Brook, New York 11794.
  • Bhasin A; University of Houston, Houston, Texas 77204.
  • Bielcik J; University of Jammu, Jammu 180001, India.
  • Bielcikova J; Czech Technical University in Prague, FNSPE, Prague 115 19, Czech Republic.
  • Bland LC; Nuclear Physics Institute of the CAS, Rez 250 68, Czech Republic.
  • Bordyuzhin IG; Brookhaven National Laboratory, Upton, New York 11973.
  • Brandenburg JD; Alikhanov Institute for Theoretical and Experimental Physics NRC "Kurchatov Institute," Moscow 117218, Russia.
  • Brandin AV; Brookhaven National Laboratory, Upton, New York 11973.
  • Butterworth J; Shandong University, Qingdao, Shandong 266237.
  • Caines H; National Research Nuclear University MEPhI, Moscow 115409, Russia.
  • Calderón de la Barca Sánchez M; Rice University, Houston, Texas 77251.
  • Cebra D; Yale University, New Haven, Connecticut 06520.
  • Chakaberia I; University of California, Davis, California 95616.
  • Chaloupka P; University of California, Davis, California 95616.
  • Chan BK; Brookhaven National Laboratory, Upton, New York 11973.
  • Chang FH; Kent State University, Kent, Ohio 44242.
  • Chang Z; Czech Technical University in Prague, FNSPE, Prague 115 19, Czech Republic.
  • Chankova-Bunzarova N; University of California, Los Angeles, California 90095.
  • Chatterjee A; National Cheng Kung University, Tainan 70101.
  • Chen D; Brookhaven National Laboratory, Upton, New York 11973.
  • Chen JH; Joint Institute for Nuclear Research, Dubna 141 980, Russia.
  • Chen X; Central China Normal University, Wuhan, Hubei 430079.
  • Chen Z; University of California, Riverside, California 92521.
  • Cheng J; Fudan University, Shanghai, 200433.
  • Cherney M; University of Science and Technology of China, Hefei, Anhui 230026.
  • Chevalier M; Shandong University, Qingdao, Shandong 266237.
  • Choudhury S; Tsinghua University, Beijing 100084.
  • Christie W; Creighton University, Omaha, Nebraska 68178.
  • Crawford HJ; University of California, Riverside, California 92521.
  • Csanád M; Fudan University, Shanghai, 200433.
  • Daugherity M; Brookhaven National Laboratory, Upton, New York 11973.
  • Dedovich TG; University of California, Berkeley, California 94720.
Phys Rev Lett ; 124(17): 172301, 2020 May 01.
Article em En | MEDLINE | ID: mdl-32412276
ABSTRACT
We report on the first measurement of the charmed baryon Λ_{c}^{±} production at midrapidity (|y|<1) in Au+Au collisions at sqrt[s_{NN}]=200 GeV collected by the STAR experiment at the Relativistic Heavy Ion Collider. The Λ_{c}/D^{0} [denoting (Λ_{c}^{+}+Λ_{c}^{-})/(D^{0}+D[over ¯]^{0})] yield ratio is measured to be 1.08±0.16 (stat)±0.26 (sys) in the 0%-20% most central Au+Au collisions for the transverse momentum (p_{T}) range 3baryon-to-meson ratios for light and strange hadrons in Au+Au collisions. Model calculations including coalescence hadronization for charmed baryon and meson formation reproduce the features of our measured Λ_{c}/D^{0} ratio.
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Texto completo: 1 Coleções: 01-internacional Base de dados: MEDLINE Idioma: En Revista: Phys Rev Lett Ano de publicação: 2020 Tipo de documento: Article
Texto completo
Adicionar na Minha BVS
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PubMed Links
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Texto completo: 1 Coleções: 01-internacional Base de dados: MEDLINE Idioma: En Revista: Phys Rev Lett Ano de publicação: 2020 Tipo de documento: Article