- Main
Bulk properties of the system formed in Au+Au collisions at sNN =14.5 GeV at the BNL STAR detector
- Author(s): Adam, J;
- Adamczyk, L;
- Adams, JR;
- Adkins, JK;
- Agakishiev, G;
- Aggarwal, MM;
- Ahammed, Z;
- Alekseev, I;
- Anderson, DM;
- Aparin, A;
- Aschenauer, EC;
- Ashraf, MU;
- Atetalla, FG;
- Attri, A;
- Averichev, GS;
- Bairathi, V;
- Barish, K;
- Behera, A;
- Bellwied, R;
- Bhasin, A;
- Bielcik, J;
- Bielcikova, J;
- Bland, LC;
- Bordyuzhin, IG;
- Brandenburg, JD;
- Brandin, AV;
- Butterworth, J;
- Caines, H;
- Calderón De La Barca Sánchez, M;
- Cebra, D;
- Chakaberia, I;
- Chaloupka, P;
- Chan, BK;
- Chang, FH;
- Chang, Z;
- Chankova-Bunzarova, N;
- Chatterjee, A;
- Chen, D;
- Chen, JH;
- Chen, X;
- Chen, Z;
- Cheng, J;
- Cherney, M;
- Chevalier, M;
- Choudhury, S;
- Christie, W;
- Crawford, HJ;
- Csanád, M;
- Daugherity, M;
- Dedovich, TG;
- Deppner, IM;
- Derevschikov, AA;
- Didenko, L;
- Dong, X;
- Drachenberg, JL;
- Dunlop, JC;
- Edmonds, T;
- Elsey, N;
- Engelage, J;
- Eppley, G;
- Esha, R;
- Esumi, S;
- Evdokimov, O;
- Ewigleben, J;
- Eyser, O;
- Fatemi, R;
- Fazio, S;
- Federic, P;
- Fedorisin, J;
- Feng, CJ;
- Feng, Y;
- Filip, P;
- Finch, E;
- Fisyak, Y;
- Francisco, A;
- Fulek, L;
- Gagliardi, CA;
- Galatyuk, T;
- Geurts, F;
- Gibson, A;
- Gopal, K;
- Grosnick, D;
- Guryn, W;
- Hamad, AI;
- Hamed, A;
- Harris, JW;
- He, S;
- He, W;
- He, X;
- Heppelmann, S;
- Heppelmann, S;
- Herrmann, N;
- Hoffman, E;
- Holub, L;
- Hong, Y;
- Horvat, S;
- Hu, Y;
- Huang, HZ;
- Huang, SL;
- Huang, T
- et al.
Published Web Location
https://doi.org/10.1103/PhysRevC.101.024905Abstract
We report systematic measurements of bulk properties of the system created in Au+Au collisions at sNN=14.5 GeV recorded by the STAR detector at the Relativistic Heavy Ion Collider (RHIC). The transverse momentum spectra of π±, K±, and p(p) are studied at midrapidity (|y|<0.1) for nine centrality intervals. The centrality, transverse momentum (pT), and pseudorapidity (η) dependence of inclusive charged particle elliptic flow (v2), and rapidity-odd charged particles directed flow (v1) results near midrapidity are also presented. These measurements are compared with the published results from Au+Au collisions at other energies, and from Pb+Pb collisions at sNN=2.76 TeV. The results at sNN=14.5 GeV show similar behavior as established at other energies and fit well in the energy dependence trend. These results are important as the 14.5-GeV energy fills the gap in μB, which is of the order of 100 MeV, between sNN=11.5 and 19.6 GeV. Comparisons of the data with UrQMD and AMPT models show poor agreement in general.
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