Observation of associated production of a Z boson with a D meson in the forward region

LHCb Collaboration

doi:10.1007/JHEP04(2014)091

Observation of associated production of a Z boson with a D meson in the forward region

LHCb Collaboration

Physics and Astronomy

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

10 Citations (Scopus)

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Abstract

A search for associated production of a Z boson with an open charm meson is presented using a data sample, corresponding to an integrated luminosity of 1.0 fb⁻¹ of proton-proton collisions at a centre-of-mass energy of 7TeV, collected by the LHCb experiment. Seven candidate events for associated production of a Z boson with a D0 meson and four candidate events for a Z boson with a D+ meson are observed with a combined significance of 5.1 standard deviations. The production cross-sections in the forward region are measured to be σ_{Z → μ+μ−,D0} = 2.50 ± 1.12 ± 0.22 pb, σ_{Z → μ+μ−,D+} = 0.44 ± 0.23 ± 0.03 pb, where the first uncertainty is statistical and the second systematic.

Original language	English
Article number	91
Pages (from-to)	1-17
Number of pages	17
Journal	Journal of High Energy Physics
Volume	2014
Issue number	4
DOIs	https://doi.org/10.1007/JHEP04(2014)091
Publication status	Published - 14 Apr 2014

Keywords

Forward physics
Hadron-Hadron Scattering
Heavy quark production
Particle and resonance production

ASJC Scopus subject areas

Nuclear and High Energy Physics

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Cite this

@article{23c5dba7c7554d79bf4d40a057110ac4,

title = "Observation of associated production of a Z boson with a D meson in the forward region",

abstract = "A search for associated production of a Z boson with an open charm meson is presented using a data sample, corresponding to an integrated luminosity of 1.0 fb−1 of proton-proton collisions at a centre-of-mass energy of 7TeV, collected by the LHCb experiment. Seven candidate events for associated production of a Z boson with a D0 meson and four candidate events for a Z boson with a D+ meson are observed with a combined significance of 5.1 standard deviations. The production cross-sections in the forward region are measured to be σZ → μ+μ−,D0 = 2.50 ± 1.12 ± 0.22 pb, σZ → μ+μ−,D+ = 0.44 ± 0.23 ± 0.03 pb, where the first uncertainty is statistical and the second systematic.",

keywords = "Forward physics, Hadron-Hadron Scattering, Heavy quark production, Particle and resonance production",

author = "{LHCb Collaboration} and R. Aaij and B. Adeva and M. Adinolfi and A. Affolder and Z. Ajaltouni and J. Albrecht and F. Alessio and M. Alexander and S. Ali and G. Alkhazov and Cartelle, {P. Alvarez} and Alves, {A. A.} and S. Amato and S. Amerio and Y. Amhis and L. Anderlini and J. Anderson and R. Andreassen and M. Andreotti and Andrews, {J. E.} and Appleby, {R. B.} and Gutierrez, {O. Aquines} and F. Archilli and A. Artamonov and M. Artuso and E. Aslanides and G. Auriemma and M. Baalouch and S. Bachmann and Back, {J. J.} and A. Badalov and V. Balagura and W. Baldini and Barlow, {R. J.} and C. Barschel and S. Barsuk and W. Barter and V. Batozskaya and Th Bauer and S. Bifani and P. Griffith and P. Ilten and Kenyon, {I. R.} and C. Lazzeroni and A. Mazurov and J. Mccarthy and Parkinson, {C. J.} and L. Pescatore and D. Popov and Watson, {N. K.}",

year = "2014",

month = apr,

day = "14",

doi = "10.1007/JHEP04(2014)091",

language = "English",

volume = "2014",

pages = "1--17",

journal = "JHEP",

issn = "1126-6708",

publisher = "Springer",

number = "4",

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TY - JOUR

T1 - Observation of associated production of a Z boson with a D meson in the forward region

AU - LHCb Collaboration

AU - Aaij, R.

AU - Adeva, B.

AU - Adinolfi, M.

AU - Affolder, A.

AU - Ajaltouni, Z.

AU - Albrecht, J.

AU - Alessio, F.

AU - Alexander, M.

AU - Ali, S.

AU - Alkhazov, G.

AU - Cartelle, P. Alvarez

AU - Alves, A. A.

AU - Amato, S.

AU - Amerio, S.

AU - Amhis, Y.

AU - Anderlini, L.

AU - Anderson, J.

AU - Andreassen, R.

AU - Andreotti, M.

AU - Andrews, J. E.

AU - Appleby, R. B.

AU - Gutierrez, O. Aquines

AU - Archilli, F.

AU - Artamonov, A.

AU - Artuso, M.

AU - Aslanides, E.

AU - Auriemma, G.

AU - Baalouch, M.

AU - Bachmann, S.

AU - Back, J. J.

AU - Badalov, A.

AU - Balagura, V.

AU - Baldini, W.

AU - Barlow, R. J.

AU - Barschel, C.

AU - Barsuk, S.

AU - Barter, W.

AU - Batozskaya, V.

AU - Bauer, Th

AU - Bifani, S.

AU - Griffith, P.

AU - Ilten, P.

AU - Kenyon, I. R.

AU - Lazzeroni, C.

AU - Mazurov, A.

AU - Mccarthy, J.

AU - Parkinson, C. J.

AU - Pescatore, L.

AU - Popov, D.

AU - Watson, N. K.

PY - 2014/4/14

Y1 - 2014/4/14

N2 - A search for associated production of a Z boson with an open charm meson is presented using a data sample, corresponding to an integrated luminosity of 1.0 fb−1 of proton-proton collisions at a centre-of-mass energy of 7TeV, collected by the LHCb experiment. Seven candidate events for associated production of a Z boson with a D0 meson and four candidate events for a Z boson with a D+ meson are observed with a combined significance of 5.1 standard deviations. The production cross-sections in the forward region are measured to be σZ → μ+μ−,D0 = 2.50 ± 1.12 ± 0.22 pb, σZ → μ+μ−,D+ = 0.44 ± 0.23 ± 0.03 pb, where the first uncertainty is statistical and the second systematic.

AB - A search for associated production of a Z boson with an open charm meson is presented using a data sample, corresponding to an integrated luminosity of 1.0 fb−1 of proton-proton collisions at a centre-of-mass energy of 7TeV, collected by the LHCb experiment. Seven candidate events for associated production of a Z boson with a D0 meson and four candidate events for a Z boson with a D+ meson are observed with a combined significance of 5.1 standard deviations. The production cross-sections in the forward region are measured to be σZ → μ+μ−,D0 = 2.50 ± 1.12 ± 0.22 pb, σZ → μ+μ−,D+ = 0.44 ± 0.23 ± 0.03 pb, where the first uncertainty is statistical and the second systematic.

KW - Forward physics

KW - Hadron-Hadron Scattering

KW - Heavy quark production

KW - Particle and resonance production

UR - http://www.scopus.com/inward/record.url?scp=84937645051&partnerID=8YFLogxK

U2 - 10.1007/JHEP04(2014)091

DO - 10.1007/JHEP04(2014)091

M3 - Article

AN - SCOPUS:84937645051

VL - 2014

SP - 1

EP - 17

JO - JHEP

JF - JHEP

SN - 1126-6708

IS - 4

M1 - 91

ER -

Observation of associated production of a Z boson with a D meson in the forward region

Abstract

Keywords

ASJC Scopus subject areas

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