Measurements of charge and CP asymmetries in b-hadron decays using top-quark events collected by the ATLAS detector in pp collisions at √s=√8 TeV

M Aaboud; G Aad; B. Abbott; J Abdallah; O Abdinov; B Abeloos; Torsten Åkesson; Simona Bocchetta; LENE BRYNGEMARK; Caterina Doglioni; Vincent Hedberg; Göran Jarlskog; Else Lytken; Ulf Mjörnmark; Oxana Smirnova; Oleksandr Viazlo; ATLAS Collaboration

doi:10.1007/JHEP02(2017)071

Measurements of charge and CP asymmetries in b-hadron decays using top-quark events collected by the ATLAS detector in pp collisions at √s=√8 TeV

M Aaboud, G Aad, B. Abbott, J Abdallah, O Abdinov, B Abeloos, Torsten Åkesson, Simona Bocchetta, LENE BRYNGEMARK, Caterina Doglioni, Vincent Hedberg, Göran Jarlskog, Else Lytken, Ulf Mjörnmark, Oxana Smirnova, Oleksandr Viazlo, ATLAS Collaboration

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Abstract

Same- and opposite-sign charge asymmetries are measured in lepton+jets tt¯ events in which a b-hadron decays semileptonically to a soft muon, using data corresponding to an integrated luminosity of 20.3 fb−1 from proton-proton collisions at a centre-of-mass energy of s=√8 TeV collected with the ATLAS detector at the Large Hadron Collider at CERN. The charge asymmetries are based on the charge of the lepton from the top-quark decay and the charge of the soft muon from the semileptonic decay of a b-hadron and are measured in a fiducial region corresponding to the experimental acceptance. Four CP asymmetries (one mixing and three direct) are measured and are found to be compatible with zero and consistent with the Standard Model.[Figure not available: see fulltext.] © 2017, The Author(s).

Original language	English
Article number	71
Journal	Journal of High Energy Physics
Volume	2017
Issue number	2
DOIs	https://doi.org/10.1007/JHEP02(2017)071
Publication status	Published - 2017

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Export Date: 13 June 2017

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Subatomic Physics

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Hadron-Hadron scattering (experiments)

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10.1007/JHEP02(2017)071

Cite this

Aaboud, M., Aad, G., Abbott, B., Abdallah, J., Abdinov, O., Abeloos, B., Åkesson, T., Bocchetta, S., BRYNGEMARK, LENE., Doglioni, C., Hedberg, V., Jarlskog, G., Lytken, E., Mjörnmark, U., Smirnova, O., Viazlo, O., & ATLAS Collaboration (2017). Measurements of charge and CP asymmetries in b-hadron decays using top-quark events collected by the ATLAS detector in pp collisions at √s=√8 TeV. Journal of High Energy Physics, 2017(2), Article 71. https://doi.org/10.1007/JHEP02(2017)071

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title = "Measurements of charge and CP asymmetries in b-hadron decays using top-quark events collected by the ATLAS detector in pp collisions at √s=√8 TeV",

abstract = "Same- and opposite-sign charge asymmetries are measured in lepton+jets tt¯ events in which a b-hadron decays semileptonically to a soft muon, using data corresponding to an integrated luminosity of 20.3 fb−1 from proton-proton collisions at a centre-of-mass energy of s=√8 TeV collected with the ATLAS detector at the Large Hadron Collider at CERN. The charge asymmetries are based on the charge of the lepton from the top-quark decay and the charge of the soft muon from the semileptonic decay of a b-hadron and are measured in a fiducial region corresponding to the experimental acceptance. Four CP asymmetries (one mixing and three direct) are measured and are found to be compatible with zero and consistent with the Standard Model.[Figure not available: see fulltext.] {\textcopyright} 2017, The Author(s).",

keywords = "Hadron-Hadron scattering (experiments)",

author = "M Aaboud and G Aad and B. Abbott and J Abdallah and O Abdinov and B Abeloos and Torsten {\AA}kesson and Simona Bocchetta and LENE BRYNGEMARK and Caterina Doglioni and Vincent Hedberg and G{\"o}ran Jarlskog and Else Lytken and Ulf Mj{\"o}rnmark and Oxana Smirnova and Oleksandr Viazlo and {ATLAS Collaboration}",

note = "Export Date: 13 June 2017",

year = "2017",

doi = "10.1007/JHEP02(2017)071",

language = "English",

volume = "2017",

journal = "Journal of High Energy Physics",

issn = "1029-8479",

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Aaboud, M, Aad, G, Abbott, B, Abdallah, J, Abdinov, O, Abeloos, B, Åkesson, T, Bocchetta, S, BRYNGEMARK, LENE , Doglioni, C , Hedberg, V , Jarlskog, G , Lytken, E, Mjörnmark, U, Smirnova, O, Viazlo, O & ATLAS Collaboration 2017, 'Measurements of charge and CP asymmetries in b-hadron decays using top-quark events collected by the ATLAS detector in pp collisions at √s=√8 TeV', Journal of High Energy Physics, vol. 2017, no. 2, 71. https://doi.org/10.1007/JHEP02(2017)071

TY - JOUR

T1 - Measurements of charge and CP asymmetries in b-hadron decays using top-quark events collected by the ATLAS detector in pp collisions at √s=√8 TeV

AU - Aaboud, M

AU - Aad, G

AU - Abbott, B.

AU - Abdallah, J

AU - Abdinov, O

AU - Abeloos, B

AU - Åkesson, Torsten

AU - Bocchetta, Simona

AU - BRYNGEMARK, LENE

AU - Doglioni, Caterina

AU - Hedberg, Vincent

AU - Jarlskog, Göran

AU - Lytken, Else

AU - Mjörnmark, Ulf

AU - Smirnova, Oxana

AU - Viazlo, Oleksandr

AU - ATLAS Collaboration

N1 - Export Date: 13 June 2017

PY - 2017

Y1 - 2017

N2 - Same- and opposite-sign charge asymmetries are measured in lepton+jets tt¯ events in which a b-hadron decays semileptonically to a soft muon, using data corresponding to an integrated luminosity of 20.3 fb−1 from proton-proton collisions at a centre-of-mass energy of s=√8 TeV collected with the ATLAS detector at the Large Hadron Collider at CERN. The charge asymmetries are based on the charge of the lepton from the top-quark decay and the charge of the soft muon from the semileptonic decay of a b-hadron and are measured in a fiducial region corresponding to the experimental acceptance. Four CP asymmetries (one mixing and three direct) are measured and are found to be compatible with zero and consistent with the Standard Model.[Figure not available: see fulltext.] © 2017, The Author(s).

AB - Same- and opposite-sign charge asymmetries are measured in lepton+jets tt¯ events in which a b-hadron decays semileptonically to a soft muon, using data corresponding to an integrated luminosity of 20.3 fb−1 from proton-proton collisions at a centre-of-mass energy of s=√8 TeV collected with the ATLAS detector at the Large Hadron Collider at CERN. The charge asymmetries are based on the charge of the lepton from the top-quark decay and the charge of the soft muon from the semileptonic decay of a b-hadron and are measured in a fiducial region corresponding to the experimental acceptance. Four CP asymmetries (one mixing and three direct) are measured and are found to be compatible with zero and consistent with the Standard Model.[Figure not available: see fulltext.] © 2017, The Author(s).

KW - Hadron-Hadron scattering (experiments)

U2 - 10.1007/JHEP02(2017)071

DO - 10.1007/JHEP02(2017)071

M3 - Article

SN - 1029-8479

VL - 2017

JO - Journal of High Energy Physics

JF - Journal of High Energy Physics

IS - 2

M1 - 71

ER -

Measurements of charge and CP asymmetries in b-hadron decays using top-quark events collected by the ATLAS detector in pp collisions at √s=√8 TeV

Abstract

Bibliographical note

Subject classification (UKÄ)

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Cite this