Inclusive J/psi production at forward and backward rapidity in p-Pb collisions at root s(NN)=8.16 TeV

S. Acharya; F Acosta; D. Adamova; J Adolfsson; MM. Aggarwal; G.A. Rinella; Maria Agnello; N. Agrawal; Z. Ahammed; S.U. Ahn; S. Aiola; A. Akindinov; M. Al-Turany; SN Alam; DSD Albuquerque; D. Aleksandrov; B. Alessandro; Rafael A. Molina; Yusuf Ali; A. Alici; A. Alkin; J. Alme; Ian Bearden; Ante Bilandzic; Christian Alexander Bourjau; Jens Jørgen Gaardhøje; bsm989 bsm989; You Zhou; Katarina Gajdosova; Ozelin De Lima Pimentel Lais; Børge Svane Nielsen; Freja Thoresen; Marek Chojnacki; rtc312 rtc312; Vytautas Vislavicius

doi:10.1007/JHEP07(2018)160

Inclusive J/psi production at forward and backward rapidity in p-Pb collisions at root s(NN)=8.16 TeV

S. Acharya, F Acosta, D. Adamova, J Adolfsson, MM. Aggarwal, G.A. Rinella, Maria Agnello, N. Agrawal, Z. Ahammed, S.U. Ahn, S. Aiola, A. Akindinov, M. Al-Turany, SN Alam, DSD Albuquerque, D. Aleksandrov, B. Alessandro, Rafael A. Molina, Yusuf Ali, A. AliciA. Alkin, J. Alme, Ian Bearden, Ante Bilandzic, Christian Alexander Bourjau, Jens Jørgen Gaardhøje, bsm989 bsm989, You Zhou, Katarina Gajdosova, Ozelin De Lima Pimentel Lais, Børge Svane Nielsen, Freja Thoresen, Marek Chojnacki, rtc312 rtc312, Vytautas Vislavicius

Eksperimentel subatomar fysik

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Abstract

Inclusive J/ψ production is studied in p-Pb interactions at a centre-of-mass energy per nucleon-nucleon collision sNN=8.16 TeV, using the ALICE detector at the CERN LHC. The J/ψ meson is reconstructed, via its decay to a muon pair, in the centre-of-mass rapidity intervals 2.03 < y_cms < 3.53 and −4.46 < y_cms < −2.96, where positive and negative y_cms refer to the p-going and Pb-going direction, respectively. The transverse momentum coverage is p_T < 20 GeV/c. In this paper, y_cms- and p_T-differential cross sections for inclusive J/ψ production are presented, and the corresponding nuclear modification factors R_pPb are shown. Forward results show a suppression of the J/ψ yield with respect to pp collisions, concentrated in the region p_T ≲ 5 GeV/c. At backward rapidity no significant suppression is observed. The results are compared to previous measurements by ALICE in p-Pb collisions at sNN=5.02 TeV and to theoretical calculations. Finally, the ratios R_FB between forward- and backward-y_cmsR_pPb values are shown and discussed.[Figure not available: see fulltext.].

Originalsprog	Engelsk
Artikelnummer	160
Tidsskrift	Journal of High Energy Physics
Vol/bind	2018
Udgave nummer	7
Antal sider	27
ISSN	1126-6708
DOI	https://doi.org/10.1007/JHEP07(2018)160
Status	Udgivet - 1 jul. 2018

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10.1007/JHEP07(2018)160Licens: CC BY

Acharya2018_Article_InclusiveJΨProductionAtForwardForlagets udgivne version, 1,37 MBLicens: CC BY

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Acharya, S., Acosta, F., Adamova, D., Adolfsson, J., Aggarwal, MM., Rinella, G. A., Agnello, M., Agrawal, N., Ahammed, Z., Ahn, S. U., Aiola, S., Akindinov, A., Al-Turany, M., Alam, SN., Albuquerque, DSD., Aleksandrov, D., Alessandro, B., Molina, R. A., Ali, Y., ... Vislavicius, V. (2018). Inclusive J/psi production at forward and backward rapidity in p-Pb collisions at root s(NN)=8.16 TeV. Journal of High Energy Physics, 2018(7), [160]. https://doi.org/10.1007/JHEP07(2018)160

Acharya, S, Acosta, F, Adamova, D, Adolfsson, J, Aggarwal, MM, Rinella, GA, Agnello, M, Agrawal, N, Ahammed, Z, Ahn, SU, Aiola, S, Akindinov, A, Al-Turany, M, Alam, SN, Albuquerque, DSD, Aleksandrov, D, Alessandro, B, Molina, RA, Ali, Y, Alici, A, Alkin, A, Alme, J, Bearden, I, Bilandzic, A, Bourjau, CA, Gaardhøje, JJ , bsm989, B , Zhou, Y, Gajdosova, K, Lais, ODLP, Nielsen, BS, Thoresen, F, Chojnacki, M, rtc312, R & Vislavicius, V 2018, 'Inclusive J/psi production at forward and backward rapidity in p-Pb collisions at root s(NN)=8.16 TeV', Journal of High Energy Physics, bind 2018, nr. 7, 160. https://doi.org/10.1007/JHEP07(2018)160

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title = "Inclusive J/psi production at forward and backward rapidity in p-Pb collisions at root s(NN)=8.16 TeV",

abstract = "Inclusive J/ψ production is studied in p-Pb interactions at a centre-of-mass energy per nucleon-nucleon collision sNN=8.16 TeV, using the ALICE detector at the CERN LHC. The J/ψ meson is reconstructed, via its decay to a muon pair, in the centre-of-mass rapidity intervals 2.03 < ycms < 3.53 and −4.46 < ycms < −2.96, where positive and negative ycms refer to the p-going and Pb-going direction, respectively. The transverse momentum coverage is pT < 20 GeV/c. In this paper, ycms- and pT-differential cross sections for inclusive J/ψ production are presented, and the corresponding nuclear modification factors RpPb are shown. Forward results show a suppression of the J/ψ yield with respect to pp collisions, concentrated in the region pT ≲ 5 GeV/c. At backward rapidity no significant suppression is observed. The results are compared to previous measurements by ALICE in p-Pb collisions at sNN=5.02 TeV and to theoretical calculations. Finally, the ratios RFB between forward- and backward-ycmsRpPb values are shown and discussed.[Figure not available: see fulltext.].",

author = "S. Acharya and F Acosta and D. Adamova and J Adolfsson and MM. Aggarwal and G.A. Rinella and Maria Agnello and N. Agrawal and Z. Ahammed and S.U. Ahn and S. Aiola and A. Akindinov and M. Al-Turany and SN Alam and DSD Albuquerque and D. Aleksandrov and B. Alessandro and Molina, {Rafael A.} and Yusuf Ali and A. Alici and A. Alkin and J. Alme and Ian Bearden and Ante Bilandzic and Bourjau, {Christian Alexander} and Gaardh{\o}je, {Jens J{\o}rgen} and bsm989 bsm989 and You Zhou and Katarina Gajdosova and Lais, {Ozelin De Lima Pimentel} and Nielsen, {B{\o}rge Svane} and Freja Thoresen and Marek Chojnacki and rtc312 rtc312 and Vytautas Vislavicius",

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doi = "10.1007/JHEP07(2018)160",

language = "English",

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T1 - Inclusive J/psi production at forward and backward rapidity in p-Pb collisions at root s(NN)=8.16 TeV

AU - Acharya, S.

AU - Acosta, F

AU - Adamova, D.

AU - Adolfsson, J

AU - Aggarwal, MM.

AU - Rinella, G.A.

AU - Agnello, Maria

AU - Agrawal, N.

AU - Ahammed, Z.

AU - Ahn, S.U.

AU - Aiola, S.

AU - Akindinov, A.

AU - Al-Turany, M.

AU - Alam, SN

AU - Albuquerque, DSD

AU - Aleksandrov, D.

AU - Alessandro, B.

AU - Molina, Rafael A.

AU - Ali, Yusuf

AU - Alici, A.

AU - Alkin, A.

AU - Alme, J.

AU - Bearden, Ian

AU - Bilandzic, Ante

AU - Bourjau, Christian Alexander

AU - Gaardhøje, Jens Jørgen

AU - bsm989, bsm989

AU - Zhou, You

AU - Gajdosova, Katarina

AU - Lais, Ozelin De Lima Pimentel

AU - Nielsen, Børge Svane

AU - Thoresen, Freja

AU - Chojnacki, Marek

AU - rtc312, rtc312

AU - Vislavicius, Vytautas

PY - 2018/7/1

Y1 - 2018/7/1

N2 - Inclusive J/ψ production is studied in p-Pb interactions at a centre-of-mass energy per nucleon-nucleon collision sNN=8.16 TeV, using the ALICE detector at the CERN LHC. The J/ψ meson is reconstructed, via its decay to a muon pair, in the centre-of-mass rapidity intervals 2.03 < ycms < 3.53 and −4.46 < ycms < −2.96, where positive and negative ycms refer to the p-going and Pb-going direction, respectively. The transverse momentum coverage is pT < 20 GeV/c. In this paper, ycms- and pT-differential cross sections for inclusive J/ψ production are presented, and the corresponding nuclear modification factors RpPb are shown. Forward results show a suppression of the J/ψ yield with respect to pp collisions, concentrated in the region pT ≲ 5 GeV/c. At backward rapidity no significant suppression is observed. The results are compared to previous measurements by ALICE in p-Pb collisions at sNN=5.02 TeV and to theoretical calculations. Finally, the ratios RFB between forward- and backward-ycmsRpPb values are shown and discussed.[Figure not available: see fulltext.].

AB - Inclusive J/ψ production is studied in p-Pb interactions at a centre-of-mass energy per nucleon-nucleon collision sNN=8.16 TeV, using the ALICE detector at the CERN LHC. The J/ψ meson is reconstructed, via its decay to a muon pair, in the centre-of-mass rapidity intervals 2.03 < ycms < 3.53 and −4.46 < ycms < −2.96, where positive and negative ycms refer to the p-going and Pb-going direction, respectively. The transverse momentum coverage is pT < 20 GeV/c. In this paper, ycms- and pT-differential cross sections for inclusive J/ψ production are presented, and the corresponding nuclear modification factors RpPb are shown. Forward results show a suppression of the J/ψ yield with respect to pp collisions, concentrated in the region pT ≲ 5 GeV/c. At backward rapidity no significant suppression is observed. The results are compared to previous measurements by ALICE in p-Pb collisions at sNN=5.02 TeV and to theoretical calculations. Finally, the ratios RFB between forward- and backward-ycmsRpPb values are shown and discussed.[Figure not available: see fulltext.].

U2 - 10.1007/JHEP07(2018)160

DO - 10.1007/JHEP07(2018)160

M3 - Journal article

SN - 1126-6708

VL - 2018

JO - Journal of High Energy Physics (Online)

JF - Journal of High Energy Physics (Online)

IS - 7

M1 - 160

ER -

Inclusive J/psi production at forward and backward rapidity in p-Pb collisions at root s(NN)=8.16 TeV

Abstract

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