Conference Presentation

PUBDB-2022-07890

http://join2-wiki.gsi.de/foswiki/pub/Main/Artwork/join2_logo100x88.png Measurement of the 1-jettiness event shape observable in deep-inelastic electron-proton scattering at HERA

Britzger, D. (Corresponding author)Extern* ; H1 Collaboration (Collaboration author)DESY*

2022

Abstract: A first measurement of the 1-jettiness event shape observable in neutral-current deep-inelastic electron-proton scattering is presented. The 1-jettiness observable τ1b is defined such that it is equivalent to the thrust observable defined in the Breit frame. The data were taken in the years 2003 to 2007 with the H1 detector at the HERA ep collider at a center-of-mass energy of 319 GeV and correspond to an integrated luminosity of 351.6 pb−1. The triple-differential cross sections are presented as a function of the 1-jettiness τ1b, the event virtuality Q2 and the inelasticity y in the kinematic region Q2>150 GeV2. The data have sensitivity to the parton distribution functions of the proton, the strong coupling constant and to resummation and hadronisation effects. The data are compared to selected predictions.

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Contributing Institute(s):

1. H1 Kollaboration (H1)

Research Program(s):

1. 899 - ohne Topic (POF4-899) (POF4-899)

Experiment(s):

1. Facility (machine) HERA

Appears in the scientific report 2022

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