J/ψ production at high transverse momenta in p + p and Cu + Cu collisions at [v]sNN=200 GeV

B.I. Abelev; R.J.M. Snellings; M. van Leeuwen; M.J. Russcher; T. Peitzmann; A. Mischke; F. Benedosso; E Braidot; M.A.J. Botje

J/ψ production at high transverse momenta in p + p and Cu + Cu collisions at [v]sNN=200 GeV

Translated title of the contribution: J/ψ production at high transverse momenta in p + p and Cu + Cu collisions at [v]sNN=200 GeV

B.I. Abelev, R.J.M. Snellings, M. van Leeuwen, M.J. Russcher, T. Peitzmann, A. Mischke, F. Benedosso, E Braidot, M.A.J. Botje

Medical Physics Group

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

Abstract

The STAR Collaboration at the Relativistic Heavy Ion Collider presents measurements of J/ψ→e+e- at midrapidity and high transverse momentum (pT>5 GeV/c) in p+p and central Cu+Cu collisions at √sNN=200 GeV. The inclusive J/ψ production cross section for Cu+Cu collisions is found to be consistent at high pT with the binary collision-scaled cross section for p+p collisions. At a confidence level of 97%, this is in contrast to a suppression of J/ψ production observed at lower pT. Azimuthal correlations of J/ψ with charged hadrons in p+p collisions provide an estimate of the contribution of B-hadron decays to J/ψ production of 13%±5%.

Translated title of the contribution	J/ψ production at high transverse momenta in p + p and Cu + Cu collisions at [v]sNN=200 GeV
Original language	Undefined/Unknown
Pages (from-to)	041902/1-041902/6
Number of pages	6
Journal	Physical Review. C, Nuclear physics
Volume	80
Issue number	4
Publication status	Published - 2009

Cite this

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title = "J/ψ production at high transverse momenta in p + p and Cu + Cu collisions at [v]sNN=200 GeV",

abstract = "The STAR Collaboration at the Relativistic Heavy Ion Collider presents measurements of J/ψ→e+e- at midrapidity and high transverse momentum (pT>5 GeV/c) in p+p and central Cu+Cu collisions at √sNN=200 GeV. The inclusive J/ψ production cross section for Cu+Cu collisions is found to be consistent at high pT with the binary collision-scaled cross section for p+p collisions. At a confidence level of 97%, this is in contrast to a suppression of J/ψ production observed at lower pT. Azimuthal correlations of J/ψ with charged hadrons in p+p collisions provide an estimate of the contribution of B-hadron decays to J/ψ production of 13%±5%.",

author = "B.I. Abelev and R.J.M. Snellings and {van Leeuwen}, M. and M.J. Russcher and T. Peitzmann and A. Mischke and F. Benedosso and E Braidot and M.A.J. Botje",

year = "2009",

language = "Undefined/Unknown",

volume = "80",

pages = "041902/1--041902/6",

journal = "Physical Review. C, Nuclear physics",

issn = "0556-2813",

publisher = "American Physical Society",

number = "4",

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TY - JOUR

T1 - J/ψ production at high transverse momenta in p + p and Cu + Cu collisions at [v]sNN=200 GeV

AU - Abelev, B.I.

AU - Snellings, R.J.M.

AU - van Leeuwen, M.

AU - Russcher, M.J.

AU - Peitzmann, T.

AU - Mischke, A.

AU - Benedosso, F.

AU - Braidot, E

AU - Botje, M.A.J.

PY - 2009

Y1 - 2009

N2 - The STAR Collaboration at the Relativistic Heavy Ion Collider presents measurements of J/ψ→e+e- at midrapidity and high transverse momentum (pT>5 GeV/c) in p+p and central Cu+Cu collisions at √sNN=200 GeV. The inclusive J/ψ production cross section for Cu+Cu collisions is found to be consistent at high pT with the binary collision-scaled cross section for p+p collisions. At a confidence level of 97%, this is in contrast to a suppression of J/ψ production observed at lower pT. Azimuthal correlations of J/ψ with charged hadrons in p+p collisions provide an estimate of the contribution of B-hadron decays to J/ψ production of 13%±5%.

AB - The STAR Collaboration at the Relativistic Heavy Ion Collider presents measurements of J/ψ→e+e- at midrapidity and high transverse momentum (pT>5 GeV/c) in p+p and central Cu+Cu collisions at √sNN=200 GeV. The inclusive J/ψ production cross section for Cu+Cu collisions is found to be consistent at high pT with the binary collision-scaled cross section for p+p collisions. At a confidence level of 97%, this is in contrast to a suppression of J/ψ production observed at lower pT. Azimuthal correlations of J/ψ with charged hadrons in p+p collisions provide an estimate of the contribution of B-hadron decays to J/ψ production of 13%±5%.

M3 - Article

SN - 0556-2813

VL - 80

SP - 041902/1-041902/6

JO - Physical Review. C, Nuclear physics

JF - Physical Review. C, Nuclear physics

IS - 4

ER -

J/ψ production at high transverse momenta in p + p and Cu + Cu collisions at [v]sNN=200 GeV

Abstract

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