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Hadronic resonance production in d+Au collisions at sNN=200 GeV measured at the BNL Relativistic Heavy Ion Collider

  • Author(s): Abelev, BI
  • Aggarwal, MM
  • Ahammed, Z
  • Anderson, BD
  • Arkhipkin, D
  • Averichev, GS
  • Bai, Y
  • Balewski, J
  • Barannikova, O
  • Barnby, LS
  • Baudot, J
  • Baumgart, S
  • Beavis, DR
  • Bellwied, R
  • Benedosso, F
  • Betts, RR
  • Bhardwaj, S
  • Bhasin, A
  • Bhati, AK
  • Bichsel, H
  • Bielcik, J
  • Bielcikova, J
  • Biritz, B
  • Bland, LC
  • Bombara, M
  • Bonner, BE
  • Botje, M
  • Bouchet, J
  • Braidot, E
  • Brandin, AV
  • Bruna
  • Bueltmann, S
  • Burton, TP
  • Bystersky, M
  • Cai, XZ
  • Caines, H
  • De La Barca Sánchez, MC
  • Callner, J
  • Catu, O
  • Cebra, D
  • Cendejas, R
  • Cervantes, MC
  • Chajecki, Z
  • Chaloupka, P
  • Chattopdhyay, S
  • Chen, HF
  • Chen, JH
  • Chen, JY
  • Cheng, J
  • Cherney, M
  • Chikanian, A
  • Choi, KE
  • Christie, W
  • Chung, SU
  • Clarke, RF
  • Codrington, MJM
  • Coffin, JP
  • Cormier, TM
  • Cosentino, MR
  • Cramer, JG
  • Crawford, HJ
  • Das, D
  • Dash, S
  • Daugherity, M
  • De Silva, C
  • Dedovich, TG
  • Dephillips, M
  • Derevschikov, AA
  • De Souza, RD
  • Didenko, L
  • Djawotho, P
  • Dogra, SM
  • Dong, X
  • Drachenberg, JL
  • Draper, JE
  • Du, F
  • Dunlop, JC
  • Mazumdar, MRD
  • Edwards, WR
  • Efimov, LG
  • Elhalhuli, E
  • Elnimr, M
  • Emelianov, V
  • Engelage, J
  • Eppley, G
  • Erazmus, B
  • Estienne, M
  • Eun, L
  • Fachini, P
  • Fatemi, R
  • Fedorisin, J
  • Feng, A
  • Filip, P
  • Finch, E
  • Fine, V
  • Fisyak, Y
  • Gagliardi, CA
  • Gaillard, L
  • Gangaharan, DR
  • Ganti, MS
  • et al.
Abstract

We present the first measurements of the ρ(770)0,K*(892), Δ(1232)++,Σ(1385), and Λ(1520) resonances in d+Au collisions at sNN=200 GeV, reconstructed via their hadronic decay channels using the STAR detector (the solenoidal tracker at the BNL Relativistic Heavy Ion Collider). The masses and widths of these resonances are studied as a function of transverse momentum pT. We observe that the resonance spectra follow a generalized scaling law with the transverse mass mT. The pT of resonances in minimum bias collisions are compared with the pT of π,K, and p̄. The ρ0/π-,K*/K-,Δ++/p,Σ(1385)/Λ, and Λ(1520)/Λ ratios in d+Au collisions are compared with the measurements in minimum bias p+p interactions, where we observe that both measurements are comparable. The nuclear modification factors (RdAu) of the ρ0,K*, and Σ* scale with the number of binary collisions (Nbin) for pT 1.2 GeV/c. © 2008 The American Physical Society.

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