Measurements of the differential jet cross section as a function of the jet mass in dijet events from proton-proton collisions at √s=13 TeV
Measurements of the differential jet cross section are presented as a function of the jet mass in dijet events, in bins of jet transverse momentum, with and without a jet grooming algorithm. The data have been recorded by the CMS Collaboration in protonproton collisions at the LHC at a center-of-m...
| Main Authors: | , , , , |
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| Format: | Article |
| Language: | English English English |
| Published: |
Springer Nature
2018
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| Subjects: | |
| Online Access: | http://irep.iium.edu.my/69694/ http://irep.iium.edu.my/69694/ http://irep.iium.edu.my/69694/ http://irep.iium.edu.my/69694/1/69694_Measurements%20of%20the%20differential%20jet%20cross%20section_article.pdf http://irep.iium.edu.my/69694/2/69694_Measurements%20of%20the%20differential%20jet%20cross%20section_scopus.pdf http://irep.iium.edu.my/69694/13/69694%20Measurements%20of%20the%20differential%20jet%20cross%20section%20WOS.pdf |
| Summary: | Measurements of the differential jet cross section are presented as a function
of the jet mass in dijet events, in bins of jet transverse momentum, with and without a jet
grooming algorithm. The data have been recorded by the CMS Collaboration in protonproton collisions at the LHC at a center-of-mass energy of 13 TeV and correspond to an
integrated luminosity of 2.3 fb−1
. The absolute cross sections show slightly different jet
transverse momentum spectra in data and Monte Carlo event generators for the settings
used. Removing this transverse momentum dependence, the normalized cross section for
ungroomed jets is consistent with the prediction from Monte Carlo event generators for
masses below 30% of the transverse momentum. The normalized cross section for groomed
jets is measured with higher precision than the ungroomed cross section. Semi-analytical
calculations of the jet mass beyond leading logarithmic accuracy are compared to data,
as well as predictions at leading order and next-to-leading order, which include parton
showering and hadronization. Overall, in the normalized cross section, the theoretical
predictions agree with the measured cross sections within the uncertainties for masses
from 10 to 30% of the jet transverse momentum. |
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