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Hadronic resonance production ind+Aucollisions atsNN=200GeV measured at the BNL Relativistic Heavy Ion Collider
- Source :
- Physical Review C. 78
- Publication Year :
- 2008
- Publisher :
- American Physical Society (APS), 2008.
-
Abstract
- We present the first measurements of the {rho}(770){sup 0}, K*(892), {Delta}(1232){sup ++}, {Sigma}(1385), and {Lambda}(1520) resonances in d+Au collisions at {radical}s{sub NN} = 200 GeV, reconstructed via their hadronic decay channels using the STAR detector at RHIC. The masses and widths of these resonances are studied as a function of transverse momentum (p{sub T}). We observe that the resonance spectra follow a generalized scaling law with the transverse mass (m{sub T}). The of resonances in minimum bias collisions is compared to the of {pi}, K, and {bar p}. The {rho}{sup 0}/{pi}{sup -}, K*/K{sup -}, {Delta}{sup ++}/p, {Sigma}(1385)/{Lambda}, and {Lambda}(1520)/{Lambda} ratios in d + Au collisions are compared to the measurements in minimum bias p + p interactions, where we observe that both measurements are comparable. The nuclear modification factors (R{sub dAu}) of the {rho}{sup 0}, K*, and {Sigma}* scale with the number of binary collisions (N{sub bin}) for p{sub T} > 1.2 GeV/c.
- Subjects :
- Physics
Nuclear and High Energy Physics
010308 nuclear & particles physics
Star (game theory)
Hadron
Resonance
Lambda
01 natural sciences
7. Clean energy
Spectral line
Nuclear physics
0103 physical sciences
Transverse mass
Production (computer science)
Atomic physics
Nuclear Experiment
010306 general physics
Relativistic Heavy Ion Collider
Subjects
Details
- ISSN :
- 1089490X and 05562813
- Volume :
- 78
- Database :
- OpenAIRE
- Journal :
- Physical Review C
- Accession number :
- edsair.doi...........1454a332eec91c6bbe91dc7f0721bda8