Measurement of charged hadron production in Z-tagged jets in proton-Proton collisions at root s=8 TeV
File(s)PhysRevLett.123.232001.pdf (328.92 KB)
Published version
Author(s)
Type
Journal Article
Abstract
The production of charged hadrons within jets recoiling against a
Z
boson is measured in proton-proton collision data at
√
s
=
8
TeV
recorded by the LHCb experiment. The charged-hadron structure of the jet is studied longitudinally and transverse to the jet axis for jets with transverse momentum
p
T
>
20
GeV
and in the pseudorapidity range
2.5
<
η
<
4
. These are the first measurements of jet hadronization at these forward rapidities and also the first where the jet is produced in association with a
Z
boson. In contrast to previous hadronization measurements at the Large Hadron Collider, which are dominated by gluon jets, these measurements probe predominantly light-quark jets which are found to be more longitudinally and transversely collimated with respect to the jet axis when compared to the previous gluon dominated measurements. Therefore, these results provide valuable information on differences between quarks and gluons regarding nonperturbative hadronization dynamics.
Z
boson is measured in proton-proton collision data at
√
s
=
8
TeV
recorded by the LHCb experiment. The charged-hadron structure of the jet is studied longitudinally and transverse to the jet axis for jets with transverse momentum
p
T
>
20
GeV
and in the pseudorapidity range
2.5
<
η
<
4
. These are the first measurements of jet hadronization at these forward rapidities and also the first where the jet is produced in association with a
Z
boson. In contrast to previous hadronization measurements at the Large Hadron Collider, which are dominated by gluon jets, these measurements probe predominantly light-quark jets which are found to be more longitudinally and transversely collimated with respect to the jet axis when compared to the previous gluon dominated measurements. Therefore, these results provide valuable information on differences between quarks and gluons regarding nonperturbative hadronization dynamics.
Date Issued
2019-12-04
Date Acceptance
2019-11-20
Citation
Physical Review Letters, 2019, 123 (23), pp.232001-1-232001-11
ISSN
0031-9007
Publisher
American Physical Society
Start Page
232001-1
End Page
232001-11
Journal / Book Title
Physical Review Letters
Volume
123
Issue
23
Copyright Statement
© 2019 CERN, for the LHCb Collaboration. Published by the American Physical Society under the terms of the Creative Commons Attribution 4.0 International license (https://creativecommons.org/licenses/by/4.0/). Further distribution of this work must maintain attribution to the author(s) and the published article’s title, journal citation, and DOI. Funded by SCOAP3.
Identifier
http://gateway.webofknowledge.com/gateway/Gateway.cgi?GWVersion=2&SrcApp=PARTNER_APP&SrcAuth=LinksAMR&KeyUT=WOS:000500743400007&DestLinkType=FullRecord&DestApp=ALL_WOS&UsrCustomerID=1ba7043ffcc86c417c072aa74d649202
Subjects
Science & Technology
Physical Sciences
Physics, Multidisciplinary
Physics
TRANSVERSE-MOMENTUM
DRELL-YAN
DECAY
FRAGMENTATION
PI(+/-)
GLUON
QUARK
Publication Status
Published
Article Number
ARTN 232001
Date Publish Online
2019-12-04