Measurement of groomed event shape observables in deep-inelastic electron-proton scattering at HERA

H1 Collaboration

doi:10.1140/epjc/s10052-024-12987-0

Measurement of groomed event shape observables in deep-inelastic electron-proton scattering at HERA

H1 Collaboration

Physics and Astronomy

German Electron Synchrotron
University of California at Riverside
A. Alikhanian Yerevan Institute of Physics
University of Illinois at Chicago
Mongolian Academy of Sciences
Laboratoire Leprince-Ringuet
University of Göttingen
Max Planck Institute for Physics (Werner Heisenberg Institute)
University of Birmingham
Centro de Investigacion y de Estudios Avanzados del Instituto Politécnico Nacional
Joint Laboratory of Optics
Shandong University
Czech Academy of Sciences
University of Liverpool
University of Wuppertal
Aix-Marseille Université
Paul Scherrer Institute
Inter-University Institute for High Energies ULB-VUB
University of Antwerp
Université Paris-Saclay
Stony Brook University
Institute of Nuclear Physics
Swiss Federal Institute of Technology Zurich
Lancaster University
University of Zurich
Heidelberg University
Lawrence Berkeley National Laboratory

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

6 Scopus citations

Abstract

The H1 Collaboration at HERA reports the first measurement of groomed event shape observables in deep inelastic electron-proton scattering (DIS) at s=319GeV, using data recorded between the years 2003 and 2007 with an integrated luminosity of 351 pb^-1. Event shapes provide incisive probes of perturbative and non-perturbative QCD. Grooming techniques have been used for jet measurements in hadronic collisions; this paper presents the first application of grooming to DIS data. The analysis is carried out in the Breit frame, utilizing the novel Centauro jet clustering algorithm that is designed for DIS event topologies. Events are required to have squared momentum-transfer Q²>150 GeV2 and inelasticity 0.2<y<0.7. We report measurements of the production cross section of groomed event 1-jettiness and groomed invariant mass for several choices of grooming parameter. Monte Carlo model calculations and analytic calculations based on Soft Collinear Effective Theory are compared to the measurements.

Original language	English
Article number	718
Journal	European Physical Journal C
Volume	84
Issue number	7
DOIs	https://doi.org/10.1140/epjc/s10052-024-12987-0
State	Published - Jul 2024

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10.1140/epjc/s10052-024-12987-0

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@article{9e472436d06148afbf7d17f9ac9ed986,

title = "Measurement of groomed event shape observables in deep-inelastic electron-proton scattering at HERA",

abstract = "The H1 Collaboration at HERA reports the first measurement of groomed event shape observables in deep inelastic electron-proton scattering (DIS) at s=319GeV, using data recorded between the years 2003 and 2007 with an integrated luminosity of 351 pb-1. Event shapes provide incisive probes of perturbative and non-perturbative QCD. Grooming techniques have been used for jet measurements in hadronic collisions; this paper presents the first application of grooming to DIS data. The analysis is carried out in the Breit frame, utilizing the novel Centauro jet clustering algorithm that is designed for DIS event topologies. Events are required to have squared momentum-transfer Q2>150 GeV2 and inelasticity 0.2",

author = "\{H1 Collaboration\} and V. Andreev and M. Arratia and A. Baghdasaryan and A. Baty and K. Begzsuren and A. Bolz and V. Boudry and G. Brandt and D. Britzger and A. Buniatyan and L. Bystritskaya and Campbell, \{A. J.\} and \{Cantun Avila\}, \{K. B.\} and K. Cerny and V. Chekelian and Z. Chen and Contreras, \{J. G.\} and J. Cvach and Dainton, \{J. B.\} and K. Daum and A. Deshpande and C. Diaconu and A. Drees and G. Eckerlin and S. Egli and E. Elsen and L. Favart and A. Fedotov and J. Feltesse and M. Fleischer and A. Fomenko and C. Gal and J. Gayler and L. Goerlich and N. Gogitidze and M. Gouzevitch and C. Grab and T. Greenshaw and G. Grindhammer and D. Haidt and Henderson, \{R. C.W.\} and J. Hessler and J. Hladk{\'y} and D. Hoffmann and R. Horisberger and T. Hreus and F. Huber and Jacobs, \{P. M.\} and M. Jacquet and T. Janssen",

note = "Publisher Copyright: {\textcopyright} The Author(s) 2024.",

year = "2024",

month = jul,

doi = "10.1140/epjc/s10052-024-12987-0",

language = "English",

volume = "84",

journal = "European Physical Journal C",

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T1 - Measurement of groomed event shape observables in deep-inelastic electron-proton scattering at HERA

AU - H1 Collaboration

AU - Andreev, V.

AU - Arratia, M.

AU - Baghdasaryan, A.

AU - Baty, A.

AU - Begzsuren, K.

AU - Bolz, A.

AU - Boudry, V.

AU - Brandt, G.

AU - Britzger, D.

AU - Buniatyan, A.

AU - Bystritskaya, L.

AU - Campbell, A. J.

AU - Cantun Avila, K. B.

AU - Cerny, K.

AU - Chekelian, V.

AU - Chen, Z.

AU - Contreras, J. G.

AU - Cvach, J.

AU - Dainton, J. B.

AU - Daum, K.

AU - Deshpande, A.

AU - Diaconu, C.

AU - Drees, A.

AU - Eckerlin, G.

AU - Egli, S.

AU - Elsen, E.

AU - Favart, L.

AU - Fedotov, A.

AU - Feltesse, J.

AU - Fleischer, M.

AU - Fomenko, A.

AU - Gal, C.

AU - Gayler, J.

AU - Goerlich, L.

AU - Gogitidze, N.

AU - Gouzevitch, M.

AU - Grab, C.

AU - Greenshaw, T.

AU - Grindhammer, G.

AU - Haidt, D.

AU - Henderson, R. C.W.

AU - Hessler, J.

AU - Hladký, J.

AU - Hoffmann, D.

AU - Horisberger, R.

AU - Hreus, T.

AU - Huber, F.

AU - Jacobs, P. M.

AU - Jacquet, M.

AU - Janssen, T.

PY - 2024/7

Y1 - 2024/7

N2 - The H1 Collaboration at HERA reports the first measurement of groomed event shape observables in deep inelastic electron-proton scattering (DIS) at s=319GeV, using data recorded between the years 2003 and 2007 with an integrated luminosity of 351 pb-1. Event shapes provide incisive probes of perturbative and non-perturbative QCD. Grooming techniques have been used for jet measurements in hadronic collisions; this paper presents the first application of grooming to DIS data. The analysis is carried out in the Breit frame, utilizing the novel Centauro jet clustering algorithm that is designed for DIS event topologies. Events are required to have squared momentum-transfer Q2>150 GeV2 and inelasticity 0.2

AB - The H1 Collaboration at HERA reports the first measurement of groomed event shape observables in deep inelastic electron-proton scattering (DIS) at s=319GeV, using data recorded between the years 2003 and 2007 with an integrated luminosity of 351 pb-1. Event shapes provide incisive probes of perturbative and non-perturbative QCD. Grooming techniques have been used for jet measurements in hadronic collisions; this paper presents the first application of grooming to DIS data. The analysis is carried out in the Breit frame, utilizing the novel Centauro jet clustering algorithm that is designed for DIS event topologies. Events are required to have squared momentum-transfer Q2>150 GeV2 and inelasticity 0.2

UR - https://www.scopus.com/pages/publications/85203711374

U2 - 10.1140/epjc/s10052-024-12987-0

DO - 10.1140/epjc/s10052-024-12987-0

M3 - Article

AN - SCOPUS:85203711374

SN - 1434-6044

VL - 84

JO - European Physical Journal C

JF - European Physical Journal C

IS - 7

M1 - 718

ER -

Measurement of groomed event shape observables in deep-inelastic electron-proton scattering at HERA

Abstract

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