Azimuthal correlations of high transverse momentum jets at next-to-leading order in the parton branching method
(2022) In European Physical Journal C 82(1).- Abstract
The azimuthal correlation, Δ ϕ12, of high transverse momentum jets in pp collisions at s=13 TeV is studied by applying PB-TMD distributions to NLO calculations via MCatNLO together with the PB-TMD parton shower. A very good description of the cross section as a function of Δ ϕ12 is observed. In the back-to-back region of Δ ϕ12→ π, a very good agreement is observed with the PB-TMD Set 2 distributions while significant deviations are obtained with the PB-TMD Set 1 distributions. Set 1 uses the evolution scale while Set 2 uses transverse momentum as an argument in αs, and the above observation therefore confirms the importance of an appropriate soft-gluon coupling in angular ordered parton... (More)
The azimuthal correlation, Δ ϕ12, of high transverse momentum jets in pp collisions at s=13 TeV is studied by applying PB-TMD distributions to NLO calculations via MCatNLO together with the PB-TMD parton shower. A very good description of the cross section as a function of Δ ϕ12 is observed. In the back-to-back region of Δ ϕ12→ π, a very good agreement is observed with the PB-TMD Set 2 distributions while significant deviations are obtained with the PB-TMD Set 1 distributions. Set 1 uses the evolution scale while Set 2 uses transverse momentum as an argument in αs, and the above observation therefore confirms the importance of an appropriate soft-gluon coupling in angular ordered parton evolution. The total uncertainties of the predictions are dominated by the scale uncertainties of the matrix element, while the uncertainties coming from the PB-TMDs and the corresponding PB-TMD shower are very small. The Δ ϕ12 measurements are also compared with predictions using MCatNLO together Pythia8, illustrating the importance of details of the parton shower evolution.
(Less)
- author
- organization
- publishing date
- 2022-01
- type
- Contribution to journal
- publication status
- published
- subject
- in
- European Physical Journal C
- volume
- 82
- issue
- 1
- article number
- 36
- publisher
- Springer
- external identifiers
-
- scopus:85122957768
- ISSN
- 1434-6044
- DOI
- 10.1140/epjc/s10052-022-09997-1
- language
- English
- LU publication?
- yes
- additional info
- Publisher Copyright: © 2022, The Author(s).
- id
- 92842b89-1405-461d-819b-ec9eca004b09
- date added to LUP
- 2022-02-11 16:03:29
- date last changed
- 2024-04-23 21:48:57
@article{92842b89-1405-461d-819b-ec9eca004b09,
abstract = {{<p>The azimuthal correlation, Δ ϕ<sub>12</sub>, of high transverse momentum jets in pp collisions at s=13 TeV is studied by applying PB-TMD distributions to NLO calculations via MCatNLO together with the PB-TMD parton shower. A very good description of the cross section as a function of Δ ϕ<sub>12</sub> is observed. In the back-to-back region of Δ ϕ<sub>12</sub>→ π, a very good agreement is observed with the PB-TMD Set 2 distributions while significant deviations are obtained with the PB-TMD Set 1 distributions. Set 1 uses the evolution scale while Set 2 uses transverse momentum as an argument in α<sub>s</sub>, and the above observation therefore confirms the importance of an appropriate soft-gluon coupling in angular ordered parton evolution. The total uncertainties of the predictions are dominated by the scale uncertainties of the matrix element, while the uncertainties coming from the PB-TMDs and the corresponding PB-TMD shower are very small. The Δ ϕ<sub>12</sub> measurements are also compared with predictions using MCatNLO together Pythia8, illustrating the importance of details of the parton shower evolution.</p>}},
author = {{Abdulhamid, M. I. and Al-Mashad, M. A. and Martinez, A. Bermudez and Bonomelli, G. and Bubanja, I. and Crnković, N. and Colombina, F. and D’Anzi, B. and Cerci, S. and Davydov, M. and Banos, L. I.Estevez and Forzano, N. and Hautmann, F. and Jung, H. and Kim, S. and Quirós, A. León and Martins, D. E. and Mendizabal, M. and Figueroa, K. Moral and Prestel, S. and Monfared, S. Taheri and Süslü, C. and Cerci, D. Sunar and van Kampen, A. M. and Van Mechelen, P. and Verbytskyi, A. and Wang, Q. and Yang, H. and Zhou, Y.}},
issn = {{1434-6044}},
language = {{eng}},
number = {{1}},
publisher = {{Springer}},
series = {{European Physical Journal C}},
title = {{Azimuthal correlations of high transverse momentum jets at next-to-leading order in the parton branching method}},
url = {{http://dx.doi.org/10.1140/epjc/s10052-022-09997-1}},
doi = {{10.1140/epjc/s10052-022-09997-1}},
volume = {{82}},
year = {{2022}},
}