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Title: The transverse momentum distribution of hadrons within jets

Journal Article · · Journal of High Energy Physics (Online)
ORCiD logo [1];  [2];  [3];  [4]
  1. Univ. of California, Los Angeles, CA (United States); Los Alamos National Lab. (LANL), Los Alamos, NM (United States)
  2. Beijing Normal Univ., Beijing (China)
  3. Lawrence Berkeley National Lab. (LBNL), Berkeley, CA (United States)
  4. Northwestern Univ., Evanston, IL (United States); Argonne National Lab. (ANL), Argonne, IL (United States)

We study the transverse momentum distribution of hadrons within jets, where the transverse momentum is defined with respect to the standard jet axis. We consider the case where the jet substructure measurement is performed for an inclusive jet sample pp → jet + X. We demonstrate that this observable provides new opportunities to study transverse momentum dependent fragmentation functions (TMDFFs) which are currently poorly constrained from data, especially for gluons. The factorization of the cross section is obtained within Soft Collinear Effective Theory (SCET), and we show that the relevant TMDFFs are the same as for the more traditional processes semi-inclusive deep inelastic scattering (SIDIS) and electron-positron annihilation. Different than in SIDIS, the observable for the in-jet fragmentation does not depend on TMD parton distribution functions which allows for a cleaner and more direct probe of TMDFFs. We present numerical results and compare to available data from the LHC.

Research Organization:
Lawrence Berkeley National Laboratory (LBNL), Berkeley, CA (United States)
Sponsoring Organization:
USDOE Office of Science (SC)
Grant/Contract Number:
AC02-05CH11231
OSTI ID:
1420109
Journal Information:
Journal of High Energy Physics (Online), Journal Name: Journal of High Energy Physics (Online) Journal Issue: 11 Vol. 2017; ISSN 1029-8479
Publisher:
Springer BerlinCopyright Statement
Country of Publication:
United States
Language:
English

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Cited By (13)

Phenomenology with a recoil-free jet axis: TMD fragmentation and the jet shape journal January 2019
Jet angularity measurements for single inclusive jet production journal April 2018
The jet shape at NLL′ journal May 2019
Probing transverse-momentum dependent evolution with groomed jets journal July 2018
Inclusive heavy flavor jet production with semi-inclusive jet functions: from proton to heavy-ion collisions journal July 2019
Transverse momentum spectra at threshold for groomed heavy quark jets journal October 2018
The groomed and ungroomed jet mass distribution for inclusive jet production at the LHC journal October 2018
Transverse-Momentum-Dependent Distributions with Jets journal October 2018
Jet angularity measurements for single inclusive jet production text January 2018
Transverse momentum dependent distributions with jets text January 2018
Transverse Momentum Spectra at Threshold for Groomed Heavy Quark Jets text January 2018
Phenomenology with a recoil-free jet axis: TMD fragmentation and the jet shape text January 2018
Inclusive heavy flavor jet production with semi-inclusive jet functions: from proton to heavy-ion collisions text January 2018

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