First Measurement of Λ_{c} Baryon Production in Au+Au Collisions at sqrt[s_{NN}]=200 GeV.

J Adam,L Adamczyk,J R Adams,J K Adkins,G Agakishiev,M M Aggarwal, Z Ahammed,I Alekseev,D M Anderson,A Aparin,E C Aschenauer,M U Ashraf,F G Atetalla, A Attri,G S Averichev,V Bairathi,K Barish,A Behera,R Bellwied,A Bhasin, J Bielcik, J Bielcikova,L C Bland,I G Bordyuzhin,J D Brandenburg, A V Brandin,J Butterworth,H Caines,M Calderón de la Barca Sánchez, D Cebra,I Chakaberia,P Chaloupka, B K Chan,F-H Chang,Z Chang,N Chankova-Bunzarova,A Chatterjee, D Chen, J H Chen, X Chen,Z Chen,J Cheng,M Cherney,M Chevalier,S Choudhury,W Christie,H J Crawford,M Csanád, M Daugherity,T G Dedovich,I M Deppner, A A Derevschikov,L Didenko, X Dong, J L Drachenberg,J C Dunlop,T Edmonds, N Elsey,J Engelage, G Eppley,R Esha,S Esumi, O Evdokimov, J Ewigleben,O Eyser,R Fatemi,S Fazio,P Federic, J Fedorisin, C J Feng,Y Feng,P Filip,E Finch, Y Fisyak,A Francisco,L Fulek,C A Gagliardi,T Galatyuk,F Geurts,A Gibson,K Gopal,D Grosnick, W Guryn,A I Hamad,A Hamed,J W Harris,W He, X He, S Heppelmann,N Herrmann,E Hoffman, L Holub,Y Hong,S Horvat, Y Hu, H Z Huang,S L Huang,T Huang,X Huang, T J Humanic,P Huo, G Igo, D Isenhower,W W Jacobs,C Jena, A Jentsch,Y Ji,J Jia,K Jiang, S Jowzaee,X Ju,E G Judd,S Kabana,M L Kabir,S Kagamaster,D Kalinkin,K Kang,D Kapukchyan,K Kauder,H W Ke,D Keane,A Kechechyan,M Kelsey,Y V Khyzhniak,D P Kikoła,C Kim, B Kimelman,D Kincses, T A Kinghorn,I Kisel,A Kiselev,A Kisiel, M Kocan, L Kochenda,L K Kosarzewski,L Kramarik,P Kravtsov, K Krueger,N Kulathunga Mudiyanselage,L Kumar,R Kunnawalkam Elayavalli, J H Kwasizur,R Lacey,S Lan,J M Landgraf,J Lauret,A Lebedev, R Lednicky,J H Lee,Y H Leung,C Li,W Li,X Li,Y Li,Y Liang, R Licenik,T Lin,Y Lin, M A Lisa,F Liu, H Liu,P Liu,T Liu,X Liu, Y Liu,Z Liu, T Ljubicic,W J Llope, R S Longacre,N S Lukow,S Luo,X Luo,G L Ma,L Ma, R Ma,Y G Ma,N Magdy, R Majka, D Mallick,S Margetis, C Markert,H S Matis,J A Mazer, N G Minaev,S Mioduszewski,B Mohanty,I Mooney,Z Moravcova,D A Morozov,M Nagy,J D Nam,Md Nasim,K Nayak,D Neff,J M Nelson,D B Nemes,M Nie,G Nigmatkulov,T Niida, L V Nogach, T Nonaka,G Odyniec,A Ogawa, S Oh,V A Okorokov,B S Page, R Pak, A Pandav,Y Panebratsev,B Pawlik, D Pawlowska,H Pei,C Perkins,L Pinsky, R L Pintér, J Pluta,J Porter,M Posik,N K Pruthi, M Przybycien, J Putschke,H Qiu,A Quintero,S K Radhakrishnan,S Ramachandran, R L Ray,R Reed, H G Ritter,J B Roberts,O V Rogachevskiy,J L Romero,L Ruan,J Rusnak,N R Sahoo,H Sako,S Salur,J Sandweiss,S Sato,W B Schmidke,N Schmitz,B R Schweid,F Seck, J Seger,M Sergeeva,R Seto, P Seyboth,N Shah, E Shahaliev,P V Shanmuganathan,M Shao,F Shen,W Q Shen,S S Shi,Q Y Shou,E P Sichtermann,R Sikora,M Simko,J Singh,S Singha, N Smirnov,W Solyst,P Sorensen,H M Spinka, B Srivastava,T D S Stanislaus,M Stefaniak, D J Stewart,M Strikhanov,B Stringfellow,A A P Suaide, M Sumbera,B Summa,X M Sun,Y Sun,B Surrow,D N Svirida, P Szymanski,A H Tang,Z Tang,A Taranenko,T Tarnowsky,J H Thomas, A R Timmins,D Tlusty,M Tokarev, C A Tomkiel,S Trentalange, R E Tribble,P Tribedy,S K Tripathy,O D Tsai,Z Tu, T Ullrich,D G Underwood,I Upsal,G Van Buren,J Vanek, A N Vasiliev,I Vassiliev,F Videbæk,S Vokal,S A Voloshin,F Wang,G Wang,J S Wang,P Wang, Y Wang,Z Wang, J C Webb,P C Weidenkaff, L Wen,G D Westfall, H Wieman,S W Wissink,R Witt,Y Wu,Z G Xiao,G Xie,W Xie,H Xu,N Xu,Q H Xu,Y F Xu,Y Xu,Z Xu,C Yang,Q Yang,S Yang,Y Yang,Z Yang,Z Ye, L Yi,K Yip, H Zbroszczyk,W Zha,D Zhang,S Zhang,X P Zhang,Y Zhang,Z J Zhang,Z Zhang,J Zhao,C Zhong,C Zhou,X Zhu,Z Zhu,M Zurek, M Zyzak

PHYSICAL REVIEW LETTERS（2020）

引用 51|浏览164

暂无评分

摘要

We report on the first measurement of the charmed baryon Lambda(+/-)(c) production at midrapidity (vertical bar y vertical bar < 1) in Au + Au collisions root s(NN) = 200 GeV collected by the STAR experiment at the Relativistic Heavy Ion Collider. The A(c)/D-0 [denoting (Lambda(+)(c) + Lambda(-)(c))/(D-0 + (D) over bar (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 3 < p(T) < 6 GeV/c. This is significantly larger than the PYTHIA model calculations for p + p collisions. The measured A(c)/D-0 ratio, as a function of p(T) and collision centrality, is comparable to the baryon-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 Lambda(c)/D-0 ratio.

查看译文

关键词

Baryon,Relativistic Heavy Ion Collider,Physics,Mathematical physics,Chatterjee,Transverse momentum,Yield ratio

AI 理解论文

溯源树

样例

生成溯源树，研究论文发展脉络

Chat Paper

正在生成论文摘要