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Absence of suppression in particle production at large transverse momentum in sqrt[s(NN)]=200 GeV d+Au collisions |
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| Authors: | Adler S S Afanasiev S Aidala C Ajitanand N N Akiba Y Al-Jamel A Alexander J Aoki K Aphecetche L Armendariz R Aronson S H Averbeck R Awes T C Babintsev V Baldisseri A Barish K N Barnes P D Bassalleck B Bathe S Batsouli S Baublis V Bauer F Bazilevsky A Belikov S Bjorndal M T Boissevain J G Borel H Brooks M L Brown D S Bruner N Bucher D Buesching H Bumazhnov V Bunce G Burward-Hoy J M Butsyk S Camard X Chand P Chang W C Chernichenko S Chi C Y Chiba J Chiu M Choi I J Choudhury R K Chujo T Cianciolo V Cobigo Y Cole B A Comets M P Constantin P Csanád M Csörgo T Cussonneau J P d'Enterria D Das K |
| Institution: | Brookhaven National Laboratory, Upton, New York 11973-5000, USA. |
| Abstract: | Transverse momentum spectra of charged hadrons with p(T)<8 GeV/c and neutral pions with p(T)<10 GeV/c have been measured at midrapidity by the PHENIX experiment at BNL RHIC in d+Au collisions at sqrts(NN)]=200 GeV. The measured yields are compared to those in p+p collisions at the same sqrts(NN)] scaled up by the number of underlying nucleon-nucleon collisions in d+Au. The yield ratio does not show the suppression observed in central Au+Au collisions at RHIC. Instead, there is a small enhancement in the yield of high momentum particles. |
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