Adams, J;
Adler, C;
Aggarwal, MM;
Ahammed, Z;
Amonett, J;
Anderson, BD;
Arkhipkin, D;
... Zubarev, AN; + view all
(2004)
rho(0) production and possible modification in Au+Au and p+p collisions at root S-NN=200 GeV.
Physical Review Letters
, 92
(9)
, Article 092301. 10.1103/PhysRevLett.92.092301.
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Abstract
We report results on rho(770)(0)-->pi(+)pi(-) production at midrapidity in p+p and peripheral Au+Au collisions at roots(NN)=200 GeV. This is the first direct measurement of rho(770)(0)-->pi(+)pi(-) in heavy-ion collisions. The measured rho(0) peak in the invariant mass distribution is shifted by similar to40 MeV/c(2) in minimum bias p+p interactions and similar to70 MeV/c(2) in peripheral Au+Au collisions. The rho(0) mass shift is dependent on transverse momentum and multiplicity. The modification of the rho(0) meson mass, width, and shape due to phase space and dynamical effects are discussed.
| Type: | Article |
|---|---|
| Title: | rho(0) production and possible modification in Au+Au and p+p collisions at root S-NN=200 GeV |
| Open access status: | An open access version is available from UCL Discovery |
| DOI: | 10.1103/PhysRevLett.92.092301 |
| Publisher version: | http://dx.doi.org/10.1103/PhysRevLett.92.092301 |
| Additional information: | © 2004 The American Physical Society |
| Keywords: | VECTOR-MESON PRODUCTION, 205 GEV-C, INCLUSIVE PRODUCTION, PARTICLE-PRODUCTION, HADRON-PRODUCTION, AU COLLISIONS, PP, RESONANCES, DECAYS, ANNIHILATION |
| UCL classification: | UCL UCL > Provost and Vice Provost Offices > UCL BEAMS UCL > Provost and Vice Provost Offices > UCL BEAMS > Faculty of Maths and Physical Sciences |
| URI: | https://discovery.ucl.ac.uk/id/eprint/1338202 |
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