Measurement of b-quark fragmentation properties in jets using the decay B± → J/ψK± in pp collisions at s√ = 13 TeV with the ATLAS detector

G Aad; Torsten Åkesson; Eric Edward Corrigan; Caterina Doglioni; Jannik Geisen; Eva Brottmann Hansen; Vincent Hedberg; Göran Jarlskog; Balazs Konya; Else Lytken; Katja Mankinen; Caterina Marcon; Ulf Mjörnmark; Geoffrey André Adrien Mullier; Ruth Pöttgen; Eleni Skorda; Oxana Smirnova; L Zwalinski; ATLAS Collaboration

doi:10.1007/JHEP12(2021)131

Measurement of b-quark fragmentation properties in jets using the decay B± → J/ψK± in pp collisions at s√ = 13 TeV with the ATLAS detector

G Aad, Torsten Åkesson, Eric Edward Corrigan, Caterina Doglioni, Jannik Geisen, Eva Brottmann Hansen, Vincent Hedberg, Göran Jarlskog, Balazs Konya, Else Lytken, Katja Mankinen, Caterina Marcon, Ulf Mjörnmark, Geoffrey André Adrien Mullier, Ruth Pöttgen, Eleni Skorda, Oxana Smirnova, L Zwalinski, ATLAS Collaboration

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Abstract

The fragmentation properties of jets containing b-hadrons are studied using charged B mesons in 139 fb−1 of pp collisions at s√ = 13 TeV, recorded with the ATLAS detector at the LHC during the period from 2015 to 2018. The B mesons are reconstructed using the decay of B± into J/ψK±, with the J/ψ decaying into a pair of muons. Jets are reconstructed using the anti-kt algorithm with radius parameter R = 0.4. The measurement determines the longitudinal and transverse momentum profiles of the reconstructed B hadrons with respect to the axes of the jets to which they are geometrically associated. These distributions are measured in intervals of the jet transverse momentum, ranging from 50 GeV to above 100 GeV. The results are corrected for detector effects and compared with several Monte Carlo predictions using different parton shower and hadronisation models. The results for the longitudinal and transverse profiles provide useful inputs to improve the description of heavy-flavour fragmentation in jets.

Original language	English
Article number	131
Journal	Journal of High Energy Physics
Volume	2021
Issue number	12
DOIs	https://doi.org/10.1007/JHEP12(2021)131
Publication status	Published - 2021

Subject classification (UKÄ)

Subatomic Physics

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Hadron-Hadron scattering (experiments)

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10.1007/JHEP12(2021)131Licence: CC BY

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Aad, G., Åkesson, T., Corrigan, E. E., Doglioni, C., Geisen, J., Brottmann Hansen, E., Hedberg, V., Jarlskog, G., Konya, B., Lytken, E., Mankinen, K., Marcon, C., Mjörnmark, U., Mullier, G. A. A., Pöttgen, R., Skorda, E., Smirnova, O., Zwalinski, L., & ATLAS Collaboration (2021). Measurement of b-quark fragmentation properties in jets using the decay B± → J/ψK± in pp collisions at s√ = 13 TeV with the ATLAS detector. Journal of High Energy Physics, 2021(12), Article 131. https://doi.org/10.1007/JHEP12(2021)131

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title = "Measurement of b-quark fragmentation properties in jets using the decay B± → J/ψK± in pp collisions at s√ = 13 TeV with the ATLAS detector",

abstract = "The fragmentation properties of jets containing b-hadrons are studied using charged B mesons in 139 fb−1 of pp collisions at s√ = 13 TeV, recorded with the ATLAS detector at the LHC during the period from 2015 to 2018. The B mesons are reconstructed using the decay of B± into J/ψK±, with the J/ψ decaying into a pair of muons. Jets are reconstructed using the anti-kt algorithm with radius parameter R = 0.4. The measurement determines the longitudinal and transverse momentum profiles of the reconstructed B hadrons with respect to the axes of the jets to which they are geometrically associated. These distributions are measured in intervals of the jet transverse momentum, ranging from 50 GeV to above 100 GeV. The results are corrected for detector effects and compared with several Monte Carlo predictions using different parton shower and hadronisation models. The results for the longitudinal and transverse profiles provide useful inputs to improve the description of heavy-flavour fragmentation in jets.",

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

author = "G Aad and Torsten {\AA}kesson and Corrigan, {Eric Edward} and Caterina Doglioni and Jannik Geisen and {Brottmann Hansen}, Eva and Vincent Hedberg and G{\"o}ran Jarlskog and Balazs Konya and Else Lytken and Katja Mankinen and Caterina Marcon and Ulf Mj{\"o}rnmark and Mullier, {Geoffrey Andr{\'e} Adrien} and Ruth P{\"o}ttgen and Eleni Skorda and Oxana Smirnova and L Zwalinski and {ATLAS Collaboration}",

year = "2021",

doi = "10.1007/JHEP12(2021)131",

language = "English",

volume = "2021",

journal = "Journal of High Energy Physics",

issn = "1029-8479",

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Aad, G, Åkesson, T, Corrigan, EE, Doglioni, C, Geisen, J, Brottmann Hansen, E, Hedberg, V , Jarlskog, G , Konya, B , Lytken, E, Mankinen, K, Marcon, C, Mjörnmark, U, Mullier, GAA, Pöttgen, R, Skorda, E, Smirnova, O, Zwalinski, L & ATLAS Collaboration 2021, 'Measurement of b-quark fragmentation properties in jets using the decay B± → J/ψK± in pp collisions at s√ = 13 TeV with the ATLAS detector', Journal of High Energy Physics, vol. 2021, no. 12, 131. https://doi.org/10.1007/JHEP12(2021)131

TY - JOUR

T1 - Measurement of b-quark fragmentation properties in jets using the decay B± → J/ψK± in pp collisions at s√ = 13 TeV with the ATLAS detector

AU - Aad, G

AU - Åkesson, Torsten

AU - Corrigan, Eric Edward

AU - Doglioni, Caterina

AU - Geisen, Jannik

AU - Brottmann Hansen, Eva

AU - Hedberg, Vincent

AU - Jarlskog, Göran

AU - Konya, Balazs

AU - Lytken, Else

AU - Mankinen, Katja

AU - Marcon, Caterina

AU - Mjörnmark, Ulf

AU - Mullier, Geoffrey André Adrien

AU - Pöttgen, Ruth

AU - Skorda, Eleni

AU - Smirnova, Oxana

AU - Zwalinski, L

AU - ATLAS Collaboration

PY - 2021

Y1 - 2021

N2 - The fragmentation properties of jets containing b-hadrons are studied using charged B mesons in 139 fb−1 of pp collisions at s√ = 13 TeV, recorded with the ATLAS detector at the LHC during the period from 2015 to 2018. The B mesons are reconstructed using the decay of B± into J/ψK±, with the J/ψ decaying into a pair of muons. Jets are reconstructed using the anti-kt algorithm with radius parameter R = 0.4. The measurement determines the longitudinal and transverse momentum profiles of the reconstructed B hadrons with respect to the axes of the jets to which they are geometrically associated. These distributions are measured in intervals of the jet transverse momentum, ranging from 50 GeV to above 100 GeV. The results are corrected for detector effects and compared with several Monte Carlo predictions using different parton shower and hadronisation models. The results for the longitudinal and transverse profiles provide useful inputs to improve the description of heavy-flavour fragmentation in jets.

AB - The fragmentation properties of jets containing b-hadrons are studied using charged B mesons in 139 fb−1 of pp collisions at s√ = 13 TeV, recorded with the ATLAS detector at the LHC during the period from 2015 to 2018. The B mesons are reconstructed using the decay of B± into J/ψK±, with the J/ψ decaying into a pair of muons. Jets are reconstructed using the anti-kt algorithm with radius parameter R = 0.4. The measurement determines the longitudinal and transverse momentum profiles of the reconstructed B hadrons with respect to the axes of the jets to which they are geometrically associated. These distributions are measured in intervals of the jet transverse momentum, ranging from 50 GeV to above 100 GeV. The results are corrected for detector effects and compared with several Monte Carlo predictions using different parton shower and hadronisation models. The results for the longitudinal and transverse profiles provide useful inputs to improve the description of heavy-flavour fragmentation in jets.

KW - Hadron-Hadron scattering (experiments)

U2 - 10.1007/JHEP12(2021)131

DO - 10.1007/JHEP12(2021)131

M3 - Article

SN - 1029-8479

VL - 2021

JO - Journal of High Energy Physics

JF - Journal of High Energy Physics

IS - 12

M1 - 131

ER -

Measurement of b-quark fragmentation properties in jets using the decay B± → J/ψK± in pp collisions at s√ = 13 TeV with the ATLAS detector

Abstract

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