TY  - JOUR
AU  - Lipatov, A. V.
AU  - Malyshev, M. A.
AU  - Jung, Hannes
TI  - TMD parton shower effects in associated γ+ jet production at the LHC
JO  - Physical review / D
VL  - 100
IS  - 3
SN  - 2470-0010
CY  - Melville, NY
PB  - Inst.302363
M1  - PUBDB-2020-00320
M1  - arXiv:1906.10552
M1  - DESY-19-114
SP  - 034028
PY  - 2019
N1  - 12 pages, 4 figures. arXiv admin note: text overlap with arXiv:1708.07079
AB  - We investigate associated prompt photon and hadronic jet production at the LHC energies using the kT-factorization approach. Our consideration is based on the O(ααs2) off-shell gluon-gluon fusion subprocess g*g*→γqq¯ and several subleading quark-initiated contributions from O(ααs) and O(ααs2) subprocesses, taken into account in the conventional (collinear) QCD factorization. The transverse momentum–dependent (or unintegrated) gluon densities in a proton are derived from Catani-Ciafaloni-Fiorani-Marchesini evolution equation. We achieve reasonably good agreement with the experimental data taken by CMS and ATLAS Collaborations and demonstrate the importance of initial-state parton showers for jet determination in the kT-factorization approach.
KW  - jet: associated production (INSPIRE)
KW  - parton: showers (INSPIRE)
KW  - transverse momentum: factorization (INSPIRE)
KW  - jet: hadronic (INSPIRE)
KW  - quantum chromodynamics: factorization (INSPIRE)
KW  - gluon gluon: fusion (INSPIRE)
KW  - gluon: density (INSPIRE)
KW  - photon: direct production (INSPIRE)
KW  - CERN LHC Coll (INSPIRE)
KW  - transverse momentum dependence (INSPIRE)
KW  - CCFM equation (INSPIRE)
KW  - initial state (INSPIRE)
KW  - factorization: collinear (INSPIRE)
KW  - off-shell (INSPIRE)
KW  - ATLAS (INSPIRE)
KW  - CMS (INSPIRE)
LB  - PUB:(DE-HGF)29 ; PUB:(DE-HGF)16
UR  - <Go to ISI:>//WOS:000483047100001
DO  - DOI:10.1103/PhysRevD.100.034028
UR  - https://bib-pubdb1.desy.de/record/434766
ER  -