Observation of Top Quark Production in Proton-Nucleus Collisions

the CMS Collaboration

doi:10.1103/PhysRevLett.119.242001

Observation of Top Quark Production in Proton-Nucleus Collisions

the CMS Collaboration

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Abstract

The first observation of top quark production in proton-nucleus collisions is reported using proton-lead data collected by the CMS experiment at the CERN LHC at a nucleon-nucleon center-of-mass energy of ﬃﬃﬃﬃﬃﬃﬃﬃ sNNp ¼ 8.16 TeV.Themeasurementisperformedusingeventswithexactlyoneisolatedelectronormuon candidate and at least four jets. The data sample corresponds to an integrated luminosity of 174 nb−1. The significance of the t¯ t signal against the background-only hypothesis is above 5 standard deviations. The measured cross section is σt¯ t ¼ 458 nb, consistent with predictions from perturbative quantumchromodynamics.

Original language	English
Article number	242001
Journal	Physical Review Letters
Volume	119
DOIs	https://doi.org/10.1103/PhysRevLett.119.242001
Publication status	Published - 14 Dec 2017

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@article{ec517ea0e8ad46929dced7159a46e42c,

title = "Observation of Top Quark Production in Proton-Nucleus Collisions",

abstract = "The first observation of top quark production in proton-nucleus collisions is reported using proton-lead data collected by the CMS experiment at the CERN LHC at a nucleon-nucleon center-of-mass energy of ﬃﬃﬃﬃﬃﬃﬃﬃ sNNp ¼ 8.16 TeV.Themeasurementisperformedusingeventswithexactlyoneisolatedelectronormuon candidate and at least four jets. The data sample corresponds to an integrated luminosity of 174 nb−1. The significance of the t¯ t signal against the background-only hypothesis is above 5 standard deviations. The measured cross section is σt¯ t ¼ 458 nb, consistent with predictions from perturbative quantumchromodynamics. ",

author = "Fionn Ball and Lana Beck and Jim Brooke and Douglas Burns and Emyr Clement and David Cussans and Olivier Davignon and H. Fl{\"a}cher and Joel Goldstein and Greg Heath and Helen Heath and Luke Kreczko and David Newbold and Sudarshan Paramesvaran and Tai Sakuma and \{Seif El Nasr\}, Sarah and Dominic Smith and Vincent Smith and \{the CMS Collaboration\}",

year = "2017",

month = dec,

day = "14",

doi = "10.1103/PhysRevLett.119.242001",

language = "English",

volume = "119",

journal = "Physical Review Letters",

issn = "0031-9007",

publisher = "American Physical Society (APS)",

}

TY - JOUR

T1 - Observation of Top Quark Production in Proton-Nucleus Collisions

AU - Ball, Fionn

AU - Beck, Lana

AU - Brooke, Jim

AU - Burns, Douglas

AU - Clement, Emyr

AU - Cussans, David

AU - Davignon, Olivier

AU - Flächer, H.

AU - Goldstein, Joel

AU - Heath, Greg

AU - Heath, Helen

AU - Kreczko, Luke

AU - Newbold, David

AU - Paramesvaran, Sudarshan

AU - Sakuma, Tai

AU - Seif El Nasr, Sarah

AU - Smith, Dominic

AU - Smith, Vincent

AU - the CMS Collaboration

PY - 2017/12/14

Y1 - 2017/12/14

N2 - The first observation of top quark production in proton-nucleus collisions is reported using proton-lead data collected by the CMS experiment at the CERN LHC at a nucleon-nucleon center-of-mass energy of ﬃﬃﬃﬃﬃﬃﬃﬃ sNNp ¼ 8.16 TeV.Themeasurementisperformedusingeventswithexactlyoneisolatedelectronormuon candidate and at least four jets. The data sample corresponds to an integrated luminosity of 174 nb−1. The significance of the t¯ t signal against the background-only hypothesis is above 5 standard deviations. The measured cross section is σt¯ t ¼ 458 nb, consistent with predictions from perturbative quantumchromodynamics.

AB - The first observation of top quark production in proton-nucleus collisions is reported using proton-lead data collected by the CMS experiment at the CERN LHC at a nucleon-nucleon center-of-mass energy of ﬃﬃﬃﬃﬃﬃﬃﬃ sNNp ¼ 8.16 TeV.Themeasurementisperformedusingeventswithexactlyoneisolatedelectronormuon candidate and at least four jets. The data sample corresponds to an integrated luminosity of 174 nb−1. The significance of the t¯ t signal against the background-only hypothesis is above 5 standard deviations. The measured cross section is σt¯ t ¼ 458 nb, consistent with predictions from perturbative quantumchromodynamics.

U2 - 10.1103/PhysRevLett.119.242001

DO - 10.1103/PhysRevLett.119.242001

M3 - Article (Academic Journal)

C2 - 29286735

SN - 0031-9007

VL - 119

JO - Physical Review Letters

JF - Physical Review Letters

M1 - 242001

ER -

Observation of Top Quark Production in Proton-Nucleus Collisions

Abstract

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