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

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

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 7 TeV, collected by the LHCb experiment. Seven candidate events for associated production of a Z boson with a D-0 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 besigma<INF>Z ->mu+mu-,D0</INF> = 2.50 +/- 1.12 +/- 0.22 pbsigma<INF>Z ->mu+mu-,D+</INF> = 0.44 +/- 0.23 +/- 0.03 pb,where the first uncertainty is statistical and the second systematic.

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

Keywords

Hadron-Hadron Scattering
Heavy quark production
Forward physics
Particle and resonance production
DOUBLE-PARTON SCATTERING
PAIR PRODUCTION
PP COLLISIONS
LHC
TEV
DISTRIBUTIONS

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10.1007/JHEP04(2014)091Licence: CC BY

Cite this

@article{85e2021424654592a9f88860b940b4df,

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 7 TeV, collected by the LHCb experiment. Seven candidate events for associated production of a Z boson with a D-0 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 besigma<INF>Z ->mu+mu-,D0 = 2.50 +/- 1.12 +/- 0.22 pbsigma<INF>Z ->mu+mu-,D+ = 0.44 +/- 0.23 +/- 0.03 pb,where the first uncertainty is statistical and the second systematic.",

keywords = "Hadron-Hadron Scattering, Heavy quark production, Forward physics, Particle and resonance production, DOUBLE-PARTON SCATTERING, PAIR PRODUCTION, PP COLLISIONS, LHC, TEV, DISTRIBUTIONS",

author = "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 P.A. Cartelle and A.A. Alves and S. Amato and S. Amerio and Y. Amhis and L. Anderlini and J. Anderson and R. Andreassen and M. Andreotti and J.E. Andrews and R.B. Appleby and O.A. Gutierrez and F. Archilli and A. Artamonov and M. Artuso and E. Aslanides and G. Auriemma and M. Baalouch and S. Bachmann and J.J. Back and A. Badalov and V. Balagura and W. Baldini and R.J. Barlow and C. Barschel and S. Barsuk and W. Barter and V. Batozskaya and T. Bauer and A. Bay and J. Beddow and F. Bedeschi and I. Bediaga and S. Belogurov and K. Belous and I. Belyaev and E. Ben-Haim and G. Bencivenni and S. Benson and {van den Brand}, J. and {LHCb collaboration}",

year = "2014",

month = apr,

day = "14",

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

language = "English",

journal = "Journal of High Energy Physics",

issn = "1029-8479",

publisher = "Springer Verlag",

number = "4",

}

TY - JOUR

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

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.A.

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.A.

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, T.

AU - Bay, A.

AU - Beddow, J.

AU - Bedeschi, F.

AU - Bediaga, I.

AU - Belogurov, S.

AU - Belous, K.

AU - Belyaev, I.

AU - Ben-Haim, E.

AU - Bencivenni, G.

AU - Benson, S.

AU - van den Brand, J.

AU - LHCb collaboration

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 7 TeV, collected by the LHCb experiment. Seven candidate events for associated production of a Z boson with a D-0 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 besigma<INF>Z ->mu+mu-,D0 = 2.50 +/- 1.12 +/- 0.22 pbsigma<INF>Z ->mu+mu-,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 7 TeV, collected by the LHCb experiment. Seven candidate events for associated production of a Z boson with a D-0 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 besigma<INF>Z ->mu+mu-,D0 = 2.50 +/- 1.12 +/- 0.22 pbsigma<INF>Z ->mu+mu-,D+ = 0.44 +/- 0.23 +/- 0.03 pb,where the first uncertainty is statistical and the second systematic.

KW - Hadron-Hadron Scattering

KW - Heavy quark production

KW - Forward physics

KW - Particle and resonance production

KW - DOUBLE-PARTON SCATTERING

KW - PAIR PRODUCTION

KW - PP COLLISIONS

KW - LHC

KW - TEV

KW - DISTRIBUTIONS

U2 - 10.1007/JHEP04(2014)091

DO - 10.1007/JHEP04(2014)091

M3 - Article

SN - 1029-8479

JO - Journal of High Energy Physics

JF - Journal of High Energy Physics

IS - 4

M1 - 91

ER -