The study of the azimuthal anisotropy of inclusive muons produced in p–Pb collisions at TeV, using the ALICE detector at the LHC is reported. The measurement of the second-order Fourier coefficient of the particle azimuthal distribution, , is performed as a function of transverse momentum in the 0–20% high-multiplicity interval at both forward () and backward () rapidities over a wide range, GeV/c, in which a dominant contribution of muons from heavy-flavour hadron decays is expected at GeV/c. The coefficient of inclusive muons is extracted using two different techniques, namely two-particle cumulants, used for the first time for heavy-flavour measurements, and forward–central two-particle correlations. Both techniques give compatible results. A positive is measured at both forward and backward rapidities with a significance larger than 4.7σ and 7.6σ, respectively, in the interval GeV/c. Comparisons with previous measurements in p–Pb collisions at TeV, and with AMPT and CGC-based theoretical calculations are discussed. The findings impose new constraints on the theoretical interpretations of the origin of the collective behaviour in small collision systems.

Acharya S., Adamova D., Adler A., Aglieri Rinella G., Agnello M., Agrawal N., et al. (2023). Measurements of azimuthal anisotropies at forward and backward rapidity with muons in high-multiplicity p–Pb collisions at √sNN=8.16 TeV. PHYSICS LETTERS. SECTION B, 846, 1-20 [10.1016/j.physletb.2023.137782].

Measurements of azimuthal anisotropies at forward and backward rapidity with muons in high-multiplicity p–Pb collisions at √sNN=8.16 TeV

Agrawal N.;Alici A.;Arcelli S.;Bellini F.;Carnesecchi F.;Colocci M.;Ercolessi F.;Giacalone M.;Jacazio N.;Malfattore G.;Rubini N.;Scioli G.;Strazzi S.;
2023

Abstract

The study of the azimuthal anisotropy of inclusive muons produced in p–Pb collisions at TeV, using the ALICE detector at the LHC is reported. The measurement of the second-order Fourier coefficient of the particle azimuthal distribution, , is performed as a function of transverse momentum in the 0–20% high-multiplicity interval at both forward () and backward () rapidities over a wide range, GeV/c, in which a dominant contribution of muons from heavy-flavour hadron decays is expected at GeV/c. The coefficient of inclusive muons is extracted using two different techniques, namely two-particle cumulants, used for the first time for heavy-flavour measurements, and forward–central two-particle correlations. Both techniques give compatible results. A positive is measured at both forward and backward rapidities with a significance larger than 4.7σ and 7.6σ, respectively, in the interval GeV/c. Comparisons with previous measurements in p–Pb collisions at TeV, and with AMPT and CGC-based theoretical calculations are discussed. The findings impose new constraints on the theoretical interpretations of the origin of the collective behaviour in small collision systems.
2023
Acharya S., Adamova D., Adler A., Aglieri Rinella G., Agnello M., Agrawal N., et al. (2023). Measurements of azimuthal anisotropies at forward and backward rapidity with muons in high-multiplicity p–Pb collisions at √sNN=8.16 TeV. PHYSICS LETTERS. SECTION B, 846, 1-20 [10.1016/j.physletb.2023.137782].
Acharya S.; Adamova D.; Adler A.; Aglieri Rinella G.; Agnello M.; Agrawal N.; Ahammed Z.; Ahmad S.; Ahn S.U.; Ahuja I.; Akindinov A.; Al-Turany M.; Al...espandi
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Utilizza questo identificativo per citare o creare un link a questo documento: https://hdl.handle.net/11585/950878
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