TY - JOUR
T1 - Studying minijets and MPI with rapidity correlations
AU - Azarkin, M.
AU - Kotko, P.
AU - Siodmok, A.
AU - Strikman, M.
N1 - Funding Information:
Acknowledgements We would like to thank Frank Krauss for reading the Sherpa model Section. Mark Strikman would like to thank CERN for hospitality, where this work has started. The research of Mark Strik-man and partially of Piotr Kotko was supported by the U.S. Department of Energy, Office of Science, Office of Nuclear Physics, under Award no. DE-FG0 2-93ER40771. The research of Piotr Kotko was also supported by the U.S. Department of Energy grant No. DE-SC-0002145. Andrzej Siodmok acknowledges support from the National Science Centre, Poland Grant no. 2016/23/D/ST2/02605 and the European Unions Horizon 2020 research and innovation programme as part of the Marie Sklodowska-Curie Innovative Training Network MCnetITN3 (Grant agreement no. 722104).
Publisher Copyright:
© 2019, The Author(s).
PY - 2019/3/1
Y1 - 2019/3/1
N2 - We propose and carry a detailed study of an observable sensitive to different mechanisms of minijet production. The observables measure how the transverse momenta of hadrons produced in association with various trigger objects are balanced as a function of rapidity. It is shown that the observables are sensitive to the model parameters relevant for the minijet production mechanisms: low-p T cutoff regulating jet cross-section, transverse distribution of partons in protons and parton distribution functions. We perform our test at different charge-particle multiplicities and collision energies. The Monte Carlo models, which describe many features of the LHC data, are found to predict quite different results demonstrating high discriminating power of the proposed observables. We also review mechanisms and components of Herwig, Pythia, and Sherpa Monte Carlo models relevant to the minijet production.
AB - We propose and carry a detailed study of an observable sensitive to different mechanisms of minijet production. The observables measure how the transverse momenta of hadrons produced in association with various trigger objects are balanced as a function of rapidity. It is shown that the observables are sensitive to the model parameters relevant for the minijet production mechanisms: low-p T cutoff regulating jet cross-section, transverse distribution of partons in protons and parton distribution functions. We perform our test at different charge-particle multiplicities and collision energies. The Monte Carlo models, which describe many features of the LHC data, are found to predict quite different results demonstrating high discriminating power of the proposed observables. We also review mechanisms and components of Herwig, Pythia, and Sherpa Monte Carlo models relevant to the minijet production.
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U2 - 10.1140/epjc/s10052-019-6670-2
DO - 10.1140/epjc/s10052-019-6670-2
M3 - Article
AN - SCOPUS:85062212319
VL - 79
JO - European Physical Journal C
JF - European Physical Journal C
SN - 1434-6044
IS - 3
M1 - 180
ER -