Heavy-flavor correlation measurements via electron azimuthal correlations with open charm mesons

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

Heavy-flavor correlation measurements via electron azimuthal correlations with open charm mesons

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

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Abstract

We report the first STAR measurement on two heavy-flavor particle correlations in p+p collisions at RHIC. Heavy-flavor (charm and bottom) events are identified and separated on a statistical basis by the azimuthal correlation of their decay electrons and open charm mesons, which yield important information about the underlying production mechanism. The azimuthal correlation distribution exhibits a two-peak structure which can be attributed to B decays on the near-side and predominantly charm pair production on the away-side. These assumptions are supported by dedicated simulations using PYTHIA and MC@NLO event generators. This novel correlation technique will allow comprehensive energy-loss measurements of heavy quarks in heavy-ion collisions.

Original language	Undefined/Unknown
Pages (from-to)	044022
Number of pages	6
Journal	Journal of physics. G. Nuclear and particle physics
Volume	35
Issue number	4
Publication status	Published - 2008

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Cite this

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title = "Heavy-flavor correlation measurements via electron azimuthal correlations with open charm mesons",

abstract = "We report the first STAR measurement on two heavy-flavor particle correlations in p+p collisions at RHIC. Heavy-flavor (charm and bottom) events are identified and separated on a statistical basis by the azimuthal correlation of their decay electrons and open charm mesons, which yield important information about the underlying production mechanism. The azimuthal correlation distribution exhibits a two-peak structure which can be attributed to B decays on the near-side and predominantly charm pair production on the away-side. These assumptions are supported by dedicated simulations using PYTHIA and MC@NLO event generators. This novel correlation technique will allow comprehensive energy-loss measurements of heavy quarks in heavy-ion collisions.",

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

note = "Invited talk at International Conference on Strangeness in Quark Matter (SQM 2007), Levoca, Slovakia, 24-29 Jun 2007",

year = "2008",

language = "Undefined/Unknown",

volume = "35",

pages = "044022",

journal = "Journal of physics. G. Nuclear and particle physics",

issn = "0954-3899",

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TY - JOUR

T1 - Heavy-flavor correlation measurements via electron azimuthal correlations with open charm mesons

AU - Mischke, A.

AU - Abelev, B.I.

AU - Benedosso, F.

AU - Botje, M.A.J.

AU - Braidot, E

AU - Peitzmann, T.

AU - Russcher, M.J.

AU - Snellings, R.J.M.

AU - van der Kolk, N.

N1 - Invited talk at International Conference on Strangeness in Quark Matter (SQM 2007), Levoca, Slovakia, 24-29 Jun 2007

PY - 2008

Y1 - 2008

N2 - We report the first STAR measurement on two heavy-flavor particle correlations in p+p collisions at RHIC. Heavy-flavor (charm and bottom) events are identified and separated on a statistical basis by the azimuthal correlation of their decay electrons and open charm mesons, which yield important information about the underlying production mechanism. The azimuthal correlation distribution exhibits a two-peak structure which can be attributed to B decays on the near-side and predominantly charm pair production on the away-side. These assumptions are supported by dedicated simulations using PYTHIA and MC@NLO event generators. This novel correlation technique will allow comprehensive energy-loss measurements of heavy quarks in heavy-ion collisions.

AB - We report the first STAR measurement on two heavy-flavor particle correlations in p+p collisions at RHIC. Heavy-flavor (charm and bottom) events are identified and separated on a statistical basis by the azimuthal correlation of their decay electrons and open charm mesons, which yield important information about the underlying production mechanism. The azimuthal correlation distribution exhibits a two-peak structure which can be attributed to B decays on the near-side and predominantly charm pair production on the away-side. These assumptions are supported by dedicated simulations using PYTHIA and MC@NLO event generators. This novel correlation technique will allow comprehensive energy-loss measurements of heavy quarks in heavy-ion collisions.

M3 - Article

SN - 0954-3899

VL - 35

SP - 044022

JO - Journal of physics. G. Nuclear and particle physics

JF - Journal of physics. G. Nuclear and particle physics

IS - 4

ER -