Measurement of prompt ψ(2S) production cross sections in proton–lead and proton–proton collisions at sNN=5.02TeV

CMS Collaboration

doi:10.1016/j.physletb.2019.01.058

Measurement of prompt ψ(2S) production cross sections in proton–lead and proton–proton collisions at s_NN=5.02TeV

CMS Collaboration

Research output: Contribution to journal › Article › peer-review

28 Citations (Scopus)

Abstract

Measurements of prompt ψ(2S) meson production cross sections in proton–lead (pPb) and proton–proton (pp) collisions at a nucleon–nucleon center-of-mass energy of s_NN=5.02TeV are reported. The results are based on pPb and pp data collected by the CMS experiment at the LHC, corresponding to integrated luminosities of 34.6 nb⁻¹ and 28.0 pb⁻¹, respectively. The nuclear modification factor R_pPb is measured for prompt ψ(2S) in the transverse momentum range 4<p_T<30GeV/c and the center-of-mass rapidity range −2.4<y_CM<1.93. The results on ψ(2S) R_pPb are compared to the corresponding modification factor for prompt J/ψ mesons. The results point to different nuclear effects at play in the production of the excited charmonium state compared to the ground state, in the region of backward rapidity and for p_T<10GeV/c.

Original language	English
Pages (from-to)	509-532
Number of pages	24
Journal	Physics Letters, Section B: Nuclear, Elementary Particle and High-Energy Physics
Volume	790
DOIs	https://doi.org/10.1016/j.physletb.2019.01.058
Publication status	Published - 10 Mar 2019
Externally published	Yes

Keywords

CMS
pPb
ψ(2S)

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10.1016/j.physletb.2019.01.058

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@article{422df9b58ad742f9b3944cbf9fc7311d,

title = "Measurement of prompt ψ(2S) production cross sections in proton–lead and proton–proton collisions at sNN=5.02TeV",

abstract = "Measurements of prompt ψ(2S) meson production cross sections in proton–lead (pPb) and proton–proton (pp) collisions at a nucleon–nucleon center-of-mass energy of sNN=5.02TeV are reported. The results are based on pPb and pp data collected by the CMS experiment at the LHC, corresponding to integrated luminosities of 34.6 nb−1 and 28.0 pb−1, respectively. The nuclear modification factor RpPb is measured for prompt ψ(2S) in the transverse momentum range 4T<30GeV/c and the center-of-mass rapidity range −2.4CM<1.93. The results on ψ(2S) RpPb are compared to the corresponding modification factor for prompt J/ψ mesons. The results point to different nuclear effects at play in the production of the excited charmonium state compared to the ground state, in the region of backward rapidity and for pT<10GeV/c.",

keywords = "CMS, pPb, ψ(2S)",

author = "{CMS Collaboration} and Sirunyan, {A. M.} and A. Tumasyan and W. Adam and F. Ambrogi and E. Asilar and T. Bergauer and J. Brandstetter and E. Brondolin and M. Dragicevic and J. Er{\"o} and {Escalante Del Valle}, A. and M. Flechl and M. Friedl and Ghete, {V. M.} and J. Hrubec and M. Jeitler and N. Krammer and I. Kr{\"a}tschmer and D. Liko and T. Madlener and I. Mikulec and N. Rad and H. Rohringer and J. Schieck and R. Sch{\"o}fbeck and M. Spanring and D. Spitzbart and A. Taurok and W. Waltenberger and J. Wittmann and Wulz, {C. E.} and M. Zarucki and V. Chekhovsky and V. Mossolov and {Suarez Gonzalez}, J. and {De Wolf}, {E. A.} and {Di Croce}, D. and X. Janssen and J. Lauwers and M. Pieters and {Van De Klundert}, M. and {Van Haevermaet}, H. and {Van Mechelen}, P. and {Van Remortel}, N. and {Abu Zeid}, S. and F. Blekman and J. D'Hondt and {De Bruyn}, I. and {De Clercq}, J. and A. Moraes",

note = "Publisher Copyright: {\textcopyright} 2019 The Author",

year = "2019",

month = mar,

day = "10",

doi = "10.1016/j.physletb.2019.01.058",

language = "English",

volume = "790",

pages = "509--532",

journal = "Physics Letters, Section B: Nuclear, Elementary Particle and High-Energy Physics",

issn = "0370-2693",

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TY - JOUR

T1 - Measurement of prompt ψ(2S) production cross sections in proton–lead and proton–proton collisions at sNN=5.02TeV

AU - CMS Collaboration

AU - Sirunyan, A. M.

AU - Tumasyan, A.

AU - Adam, W.

AU - Ambrogi, F.

AU - Asilar, E.

AU - Bergauer, T.

AU - Brandstetter, J.

AU - Brondolin, E.

AU - Dragicevic, M.

AU - Erö, J.

AU - Escalante Del Valle, A.

AU - Flechl, M.

AU - Friedl, M.

AU - Ghete, V. M.

AU - Hrubec, J.

AU - Jeitler, M.

AU - Krammer, N.

AU - Krätschmer, I.

AU - Liko, D.

AU - Madlener, T.

AU - Mikulec, I.

AU - Rad, N.

AU - Rohringer, H.

AU - Schieck, J.

AU - Schöfbeck, R.

AU - Spanring, M.

AU - Spitzbart, D.

AU - Taurok, A.

AU - Waltenberger, W.

AU - Wittmann, J.

AU - Wulz, C. E.

AU - Zarucki, M.

AU - Chekhovsky, V.

AU - Mossolov, V.

AU - Suarez Gonzalez, J.

AU - De Wolf, E. A.

AU - Di Croce, D.

AU - Janssen, X.

AU - Lauwers, J.

AU - Pieters, M.

AU - Van De Klundert, M.

AU - Van Haevermaet, H.

AU - Van Mechelen, P.

AU - Van Remortel, N.

AU - Abu Zeid, S.

AU - Blekman, F.

AU - D'Hondt, J.

AU - De Bruyn, I.

AU - De Clercq, J.

AU - Moraes, A.

PY - 2019/3/10

Y1 - 2019/3/10

N2 - Measurements of prompt ψ(2S) meson production cross sections in proton–lead (pPb) and proton–proton (pp) collisions at a nucleon–nucleon center-of-mass energy of sNN=5.02TeV are reported. The results are based on pPb and pp data collected by the CMS experiment at the LHC, corresponding to integrated luminosities of 34.6 nb−1 and 28.0 pb−1, respectively. The nuclear modification factor RpPb is measured for prompt ψ(2S) in the transverse momentum range 4T<30GeV/c and the center-of-mass rapidity range −2.4CM<1.93. The results on ψ(2S) RpPb are compared to the corresponding modification factor for prompt J/ψ mesons. The results point to different nuclear effects at play in the production of the excited charmonium state compared to the ground state, in the region of backward rapidity and for pT<10GeV/c.

AB - Measurements of prompt ψ(2S) meson production cross sections in proton–lead (pPb) and proton–proton (pp) collisions at a nucleon–nucleon center-of-mass energy of sNN=5.02TeV are reported. The results are based on pPb and pp data collected by the CMS experiment at the LHC, corresponding to integrated luminosities of 34.6 nb−1 and 28.0 pb−1, respectively. The nuclear modification factor RpPb is measured for prompt ψ(2S) in the transverse momentum range 4T<30GeV/c and the center-of-mass rapidity range −2.4CM<1.93. The results on ψ(2S) RpPb are compared to the corresponding modification factor for prompt J/ψ mesons. The results point to different nuclear effects at play in the production of the excited charmonium state compared to the ground state, in the region of backward rapidity and for pT<10GeV/c.

KW - CMS

KW - pPb

KW - ψ(2S)

UR - http://www.scopus.com/inward/record.url?scp=85061282315&partnerID=8YFLogxK

U2 - 10.1016/j.physletb.2019.01.058

DO - 10.1016/j.physletb.2019.01.058

M3 - Article

AN - SCOPUS:85061282315

SN - 0370-2693

VL - 790

SP - 509

EP - 532

JO - Physics Letters, Section B: Nuclear, Elementary Particle and High-Energy Physics

JF - Physics Letters, Section B: Nuclear, Elementary Particle and High-Energy Physics

ER -

Measurement of prompt ψ(2S) production cross sections in proton–lead and proton–proton collisions at s_NN=5.02TeV

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