TY  - INPR
T1  - Results on elastic cross sections in proton-proton collisions at √s = 510 GeV with the STAR detector at RHIC
T2  - arXiv
N2  - We report results on an elastic cross section measurement in proton-proton collisions at a center-of-mass energy s√=510 GeV, obtained with the Roman Pot setup of the STAR experiment at the Relativistic Heavy Ion Collider (RHIC). The elastic differential cross section is measured in the four-momentum transfer squared range 0.23≤−t≤0.67 GeV2. We find that a constant slope B does not fit the data in the aforementioned t range, and we obtain a much better fit using a second-order polynomial for B(t). The t dependence of B is determined using six subintervals of t in the STAR measured t range, and is in good agreement with the phenomenological models. The measured elastic differential cross section dσ/dt agrees well with the results obtained at s√=546 GeV for proton--antiproton collisions by the UA4 experiment. We also determine that the integrated elastic cross section within the STAR t-range is σfidel=462.1±0.9(stat.)±1.1(syst.)±11.6(scale) μb.
KW  - Elastic Scattering
KW  - B-slope
KW  - Diffraction
KW  - Proton–Proton Collisions
Y1  - 2023
UR  - http://publikationen.ub.uni-frankfurt.de/frontdoor/index/index/docId/86196
UR  - https://nbn-resolving.org/urn:nbn:de:hebis:30:3-861963
UR  - https://arxiv.org/abs/2309.16622v1
IS  - 2309.16622v1
PB  - arXiv
ER  -