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Dijet imbalance measurements in Au+Au and pp collisions at sqrt[s_{NN}]=200 GeV at STAR.
Adamczyk, L; Adkins, J K; Agakishiev, G; Aggarwal, M M; Ahammed, Z; Alekseev, I; Anderson, D M; Aoyama, R; Aparin, A; Arkhipkin, D; Aschenauer, E C; Ashraf, M U; Attri, A; Averichev, G S; Bai, X; Bairathi, V; Bellwied, R; Bhasin, A; Bhati, A K; Bhattarai, P; Bielcik, J; Bielcikova, J; Bland, L C; Bordyuzhin, I G; Bouchet, J; Brandenburg, J D; Brandin, A V; Brown, D; Bunzarov, I; Butterworth, J; Caines, H; Calderón de la Barca Sánchez, M; Campbell, J M; Cebra, D; Chakaberia, I; Chaloupka, P; Chang, Z; Chatterjee, A; Chattopadhyay, S; Chen, J H; Chen, X; Cheng, J; Cherney, M; Christie, W; Contin, G; Crawford, H J; Das, S; De Silva, L C; Debbe, R R; Dedovich, T G.
Affiliation
  • Adamczyk L; AGH University of Science and Technology, FPACS, Cracow 30-059, Poland.
  • 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, Moscow 117218, Russia.
  • Anderson DM; National Research Nuclear University MEPhI, Moscow 115409, Russia.
  • Aoyama R; Texas A&M University, College Station, Texas 77843.
  • Aparin A; Brookhaven National Laboratory, Upton, New York 11973.
  • Arkhipkin D; Joint Institute for Nuclear Research, Dubna 141 980, Russia.
  • Aschenauer EC; Brookhaven National Laboratory, Upton, New York 11973.
  • Ashraf MU; Brookhaven National Laboratory, Upton, New York 11973.
  • Attri A; Tsinghua University, Beijing 100084.
  • Averichev GS; Panjab University, Chandigarh 160014, India.
  • Bai X; Joint Institute for Nuclear Research, Dubna 141 980, Russia.
  • Bairathi V; Central China Normal University, Wuhan, Hubei 430079.
  • Bellwied R; National Institute of Science Education and Research, Bhubaneswar 751005, India.
  • Bhasin A; University of Houston, Houston, Texas 77204.
  • Bhati AK; University of Jammu, Jammu 180001, India.
  • Bhattarai P; Panjab University, Chandigarh 160014, India.
  • Bielcik J; University of Texas, Austin, Texas 78712.
  • Bielcikova J; Czech Technical University in Prague, FNSPE, Prague 115 19, Czech Republic.
  • Bland LC; Nuclear Physics Institute AS CR, 250 68 Prague, Czech Republic.
  • Bordyuzhin IG; Brookhaven National Laboratory, Upton, New York 11973.
  • Bouchet J; Alikhanov Institute for Theoretical and Experimental Physics, Moscow 117218, Russia.
  • Brandenburg JD; Kent State University, Kent, Ohio 44242.
  • Brandin AV; Rice University, Houston, Texas 77251.
  • Brown D; National Research Nuclear University MEPhI, Moscow 115409, Russia.
  • Bunzarov I; Lehigh University, Bethlehem, Pennsylvania 18015.
  • Butterworth J; Joint Institute for Nuclear Research, Dubna 141 980, Russia.
  • Caines H; Rice University, Houston, Texas 77251.
  • Calderón de la Barca Sánchez M; Yale University, New Haven, Connecticut 06520.
  • Campbell JM; University of California, Davis, California 95616.
  • Cebra D; The Ohio State University, Columbus, Ohio 43210.
  • Chakaberia I; University of California, Davis, California 95616.
  • Chaloupka P; Brookhaven National Laboratory, Upton, New York 11973.
  • Chang Z; Czech Technical University in Prague, FNSPE, Prague 115 19, Czech Republic.
  • Chatterjee A; Texas A&M University, College Station, Texas 77843.
  • Chattopadhyay S; Variable Energy Cyclotron Centre, Kolkata 700064, India.
  • Chen JH; Variable Energy Cyclotron Centre, Kolkata 700064, India.
  • Chen X; Shanghai Institute of Applied Physics, Chinese Academy of Sciences, Shanghai 201800.
  • Cheng J; Institute of Modern Physics, Chinese Academy of Sciences, Lanzhou, Gansu 730000.
  • Cherney M; Tsinghua University, Beijing 100084.
  • Christie W; Creighton University, Omaha, Nebraska 68178.
  • Contin G; Brookhaven National Laboratory, Upton, New York 11973.
  • Crawford HJ; Lawrence Berkeley National Laboratory, Berkeley, California 94720.
  • Das S; University of California, Berkeley, California 94720.
  • De Silva LC; Institute of Physics, Bhubaneswar 751005, India.
  • Debbe RR; Creighton University, Omaha, Nebraska 68178.
  • Dedovich TG; Brookhaven National Laboratory, Upton, New York 11973.
Phys Rev Lett ; 119(6): 062301, 2017 Aug 11.
Article in En | MEDLINE | ID: mdl-28949601
ABSTRACT
We report the first dijet transverse momentum asymmetry measurements from Au+Au and pp collisions at RHIC. The two highest-energy back-to-back jets reconstructed from fragments with transverse momenta above 2 GeV/c display a significantly higher momentum imbalance in heavy-ion collisions than in the pp reference. When reexamined with correlated soft particles included, we observe that these dijets then exhibit a unique new feature-momentum balance is restored to that observed in pp for a jet resolution parameter of R=0.4, while rebalancing is not attained with a smaller value of R=0.2.
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Full text: 1 Collection: 01-internacional Database: MEDLINE Language: En Journal: Phys Rev Lett Year: 2017 Document type: Article Affiliation country: Polonia
Fulltext
Add to My VHL
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Full text: 1 Collection: 01-internacional Database: MEDLINE Language: En Journal: Phys Rev Lett Year: 2017 Document type: Article Affiliation country: Polonia