Transverse momentum spectra and nuclear modification factors of charged particles in Xe-Xe collisions at √sNN=5.44 TeV

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초록

Transverse momentum (p(T)) spectra of charged particles at mid-pseudorapidity in Xe-Xe collisions at root s(NN) = 5.44 TeV measured with the ALICE apparatus at the Large Hadron Collider are reported. The kinematic range 0.15 < p(T) < 50 GeV/c and vertical bar eta vertical bar < 0.8 is covered. Results are presented in nine classes of collision centrality in the 0-80% range. For comparison, a pp reference at the collision energy of root s = 5.44 TeV is obtained by interpolating between existing pp measurements at root s= 5.02 and 7 TeV. The nuclear modification factors in central Xe-Xe collisions and Pb-Pb collisions at a similar center-of-mass energy of root s(NN) = 5.02 TeV, and in addition at 2.76 TeV, at analogous ranges of charged particle multiplicity density < dN(ch)/d eta > show a remarkable similarity at p T > 10 GeV/c. The centrality dependence of the ratio of the average transverse momentum < PT > in Xe-Xe collisions over Pb-Pb collision at root s= 5.02 TeV is compared to hydrodynamical model calculations. (C) 2018 The Author. Published by Elsevier B.V.

키워드

P-PB COLLISIONS
제목
Transverse momentum spectra and nuclear modification factors of charged particles in Xe-Xe collisions at √sNN=5.44 TeV
저자
Acharya, S.Acosta, F. T.Adamova, D.Adolfsson, J.Aggarwal, M. M.Rinella, G. AglieriAgnello, M.Agrawal, N.Ahammed, Z.Ahn, S. U.Aiola, S.Akindinov, A.Al-Turany, M.Alam, S. N.Albuquerque, D. S. D.Aleksandrov, D.Alessandro, B.Alfaro Molina, R.Ali, Y.Alici, A.Alkin, A.Alme, J.Alt, T.Altenkamper, L.Altsybeev, I.Andrei, C.Andreou, D.Andrews, H. A.Andronic, A.Angeletti, M.Anguelov, V.Anson, C.Anticic, T.Antinori, F.Antonioli, P.Anwar, R.Apadula, N.Aphecetche, L.Appelshaeuser, H.Arcelli, S.Arnaldi, R.Arnold, O. W.Arsene, I. C.Arslandok, M.Audurier, B.Augustinus, A.Averbeck, R.Azmi, M. D.Badala, A.Baek, Y. W.Bagnasco, S.Bailhache, R.Bala, R.Baldisseri, A.Ball, M.Baral, R. C.Barbano, A. M.Barbera, R.Barile, F.Barioglio, L.Barnafoldi, G. G.Barnby, L. S.Barret, V.Bartalini, P.Barth, K.Bartsch, E.Bastid, N.Basu, S.Batigne, G.Batyunya, B.Batzing, P. C.Bazo Alba, J. L.Bearden, I. G.Beck, H.Bedda, C.Behera, N. K.Belikov, I.Bellini, F.Bello Martinez, H.Bellwied, R.Beltran, L. G. 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DOI
10.1016/j.physletb.2018.10.052
발행일
2019-01-10
유형
Article
저널명
PHYSICS LETTERS B
788
페이지
166 ~ 179