Results on total and elastic cross sections in proton-proton collisions at √s=200 GeV
We report results on the total and elastic cross sections in proton-proton collisions at s=200 GeV obtained with the Roman Pot setup of the STAR experiment at the Relativistic Heavy Ion Collider (RHIC). The elastic differential cross section was measured in the squared four-momentum transfer range 0...
Saved in:
| Main Authors: | , , , |
|---|---|
| Corporate Author: | |
| Format: | Article (Journal) |
| Language: | English |
| Published: |
31 July 2020
|
| In: |
Physics letters
Year: 2020, Volume: 808 |
| ISSN: | 1873-2445 |
| DOI: | 10.1016/j.physletb.2020.135663 |
| Online Access: | Verlag, lizenzpflichtig, Volltext: https://doi.org/10.1016/j.physletb.2020.135663 Verlag, lizenzpflichtig, Volltext: http://www.sciencedirect.com/science/article/pii/S0370269320304664 
|
| Author Notes: | STAR Collaboration, J. Adam, , I.M. Deppner, N. Herrmann, P.C. Weidenkaff [und 359 weitere] |
| Summary: | We report results on the total and elastic cross sections in proton-proton collisions at s=200 GeV obtained with the Roman Pot setup of the STAR experiment at the Relativistic Heavy Ion Collider (RHIC). The elastic differential cross section was measured in the squared four-momentum transfer range 0.045≤−t≤0.135 GeV2. The value of the exponential slope parameter B of the elastic differential cross section dσ/dt∼e−Bt in the measured −t range was found to be B=14.32±0.09(stat.)−0.28+0.13(syst.) GeV−2. The total cross section σtot, obtained from extrapolation of the dσ/dt to the optical point at −t=0, is σtot=54.67±0.21(stat.)−1.38+1.28(syst.) mb. We also present the values of the elastic cross section σel=10.85±0.03(stat.)−0.41+0.49(syst.) mb, the elastic cross section integrated within the STAR t-range σeldet=4.05±0.01(stat.)−0.17+0.18(syst.) mb, and the inelastic cross section σinel=43.82±0.21(stat.)−1.44+1.37(syst.) mb. The results are compared with the world data. |
|---|---|
| Item Description: | Im Titel steht "s" unter dem Wurzelsymbol Gesehen am 27.10.2020 |
| Physical Description: | Online Resource |
| ISSN: | 1873-2445 |
| DOI: | 10.1016/j.physletb.2020.135663 |