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- W4206291251 startingPage "2100567" @default.
- W4206291251 abstract "Transverse momentum spectra of direct (prompt) photons from two-body processes in high-energy proton-proton (p+p) collisions are analyzed in this paper. We collected the experimental invariant cross-sections at mid-rapidity in p+p collisions measured by the UA6, CCOR, R806, R110, PHENIX, NA24, CMS, ALICE, and ATLAS Collaborations over a center-of-mass energy range from 24.3 GeV to 13 TeV. In fitting the data, we used different kinds of functions which include the revised Tsallis--Pareto-type function (the TP-like function) at the particle level, the convolution of two TP-like functions at the quark level, and the root-sum-of-squares of two revised Tsallis-like functions in which the quark chemical potentials $mu _i=mu_B/3$ or $mu_i=0$, where $mu_B$ is the baryon chemical potential. We have extracted the values of three main free parameters: the effective temperature $T$, power index $n_0$ (or entropy index $q$), and correction index $a_0$. After analyzing the changing trends of the parameters, we found that $T$, $q$, and $a_0$ increase and $n_0$ decreases with the increase of collision energy. Based on the analyses of transverse momentum spectra, an energy independent scaling, i.e. the $x_T$ scaling, is obtained." @default.
- W4206291251 created "2022-01-25" @default.
- W4206291251 creator A5001556235 @default.
- W4206291251 creator A5002386862 @default.
- W4206291251 creator A5039837606 @default.
- W4206291251 creator A5075554526 @default.
- W4206291251 date "2022-01-15" @default.
- W4206291251 modified "2023-10-16" @default.
- W4206291251 title "An Energy Independent Scaling of Transverse Momentum Spectra of Direct (Prompt) Photons from Two‐Body Processes in High‐Energy Proton–Proton Collisions" @default.
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