Measurements of angular distance and momentum ratio distributions in three-jet and Z + two-jet final states in pp collisions

CMS Collaboration; Freya Blekman; Freya Blekman; Emil Sørensen Bols; Simranjit Singh Chhibra; Jorgen D'Hondt; Jarne Theo De Clercq; Denys Lontkovskyi; Steven Lowette; Ivan Marchesini; Seth Moortgat; Alexander Morton; Quentin Python; Stefaan Tavernier; Walter Van Doninck; Petra Van Mulders

doi:10.1140/epjc/s10052-021-09570-2

Measurements of angular distance and momentum ratio distributions in three-jet and Z + two-jet final states in pp collisions

CMS Collaboration, Freya Blekman, Freya Blekman, Emil Sørensen Bols, Simranjit Singh Chhibra, Jorgen D'Hondt, Jarne Theo De Clercq, Denys Lontkovskyi, Steven Lowette, Ivan Marchesini, Seth Moortgat, Alexander Morton, Quentin Python, Stefaan Tavernier, Walter Van Doninck, Petra Van Mulders

Research output: Contribution to journal › Article › peer-review

3 Citations (Scopus)

58 Downloads (Pure)

Abstract

Collinear (small-angle) and large-angle, as well as soft and hard radiations are investigated in three-jet and Z + two-jet events collected in proton-proton collisions at the LHC. The normalized production cross sections are measured as a function of the ratio of transverse momenta of two jets and their angular separation. The measurements in the three-jet and Z + two-jet events are based on data collected at a center-of-mass energy of 8 TeV, corresponding to an integrated luminosity of 19.8 fb$^{-1}$. The Z + two-jet events are reconstructed in the dimuon decay channel of the Z boson. The three-jet measurement is extended to include $\sqrt{s} =$ 13 TeV data corresponding to an integrated luminosity of 2.3 fb$^{-1}$. The results are compared to predictions from event generators that include parton showers, multiple parton interactions, and hadronization. The collinear and soft regions are in general well described by parton showers, whereas the regions of large angular separation are often best described by calculations using higher-order matrix elements.

Original language	English
Article number	852
Number of pages	27
Journal	European Physical Journal C - Particles & Fields
Volume	81
Issue number	9
DOIs	https://doi.org/10.1140/epjc/s10052-021-09570-2
Publication status	Published - 27 Sep 2021

Bibliographical note

Replaced with the published version. Added the journal reference and the DOI. All the figures and tables can be found at http://cms-results.web.cern.ch/cms-results/public-results/publications/SMP-17-008 (CMS Public Pages)

Keywords

hep-ex

Access to Document

10.1140/epjc/s10052-021-09570-2Licence: CC BY

Sirunyan2021_Article_MeasurementsOfAngularDistanceAFinal published version, 1.52 MBLicence: CC BY
2102.08816v2Final published version, 636 KBLicence: CC BY

Cite this

Collaboration, CMS., Blekman, F., Blekman, F., Bols, E. S., Chhibra, S. S., D'Hondt, J., De Clercq, J. T., Lontkovskyi, D., Lowette, S., Marchesini, I., Moortgat, S., Morton, A., Python, Q., Tavernier, S., Van Doninck, W., & Van Mulders, P. (2021). Measurements of angular distance and momentum ratio distributions in three-jet and Z + two-jet final states in pp collisions. European Physical Journal C - Particles & Fields, 81(9), [852]. https://doi.org/10.1140/epjc/s10052-021-09570-2

Collaboration, CMS ; Blekman, Freya ; Blekman, Freya ; Bols, Emil Sørensen ; Chhibra, Simranjit Singh ; D'Hondt, Jorgen ; De Clercq, Jarne Theo ; Lontkovskyi, Denys ; Lowette, Steven ; Marchesini, Ivan ; Moortgat, Seth ; Morton, Alexander ; Python, Quentin ; Tavernier, Stefaan ; Van Doninck, Walter ; Van Mulders, Petra. / Measurements of angular distance and momentum ratio distributions in three-jet and Z + two-jet final states in pp collisions. In: European Physical Journal C - Particles & Fields. 2021 ; Vol. 81, No. 9.

@article{8b49ab118cb04aec9b055bec27bc7742,

title = "Measurements of angular distance and momentum ratio distributions in three-jet and Z + two-jet final states in pp collisions",

abstract = " Collinear (small-angle) and large-angle, as well as soft and hard radiations are investigated in three-jet and Z + two-jet events collected in proton-proton collisions at the LHC. The normalized production cross sections are measured as a function of the ratio of transverse momenta of two jets and their angular separation. The measurements in the three-jet and Z + two-jet events are based on data collected at a center-of-mass energy of 8 TeV, corresponding to an integrated luminosity of 19.8 fb$^{-1}$. The Z + two-jet events are reconstructed in the dimuon decay channel of the Z boson. The three-jet measurement is extended to include $\sqrt{s} =$ 13 TeV data corresponding to an integrated luminosity of 2.3 fb$^{-1}$. The results are compared to predictions from event generators that include parton showers, multiple parton interactions, and hadronization. The collinear and soft regions are in general well described by parton showers, whereas the regions of large angular separation are often best described by calculations using higher-order matrix elements. ",

keywords = "hep-ex",

author = "CMS Collaboration and Freya Blekman and Freya Blekman and Bols, {Emil S{\o}rensen} and Chhibra, {Simranjit Singh} and Jorgen D'Hondt and {De Clercq}, {Jarne Theo} and Denys Lontkovskyi and Steven Lowette and Ivan Marchesini and Seth Moortgat and Alexander Morton and Quentin Python and Stefaan Tavernier and {Van Doninck}, Walter and {Van Mulders}, Petra",

note = "Replaced with the published version. Added the journal reference and the DOI. All the figures and tables can be found at http://cms-results.web.cern.ch/cms-results/public-results/publications/SMP-17-008 (CMS Public Pages)",

year = "2021",

month = sep,

day = "27",

doi = "10.1140/epjc/s10052-021-09570-2",

language = "English",

volume = "81",

journal = "European Physical Journal C - Particles & Fields",

issn = "1434-6044",

publisher = "Springer Verlag",

number = "9",

}

Collaboration, CMS, Blekman, F , Blekman, F, Bols, ES, Chhibra, SS, D'Hondt, J, De Clercq, JT, Lontkovskyi, D, Lowette, S, Marchesini, I, Moortgat, S, Morton, A, Python, Q, Tavernier, S, Van Doninck, W & Van Mulders, P 2021, 'Measurements of angular distance and momentum ratio distributions in three-jet and Z + two-jet final states in pp collisions', European Physical Journal C - Particles & Fields, vol. 81, no. 9, 852. https://doi.org/10.1140/epjc/s10052-021-09570-2

Measurements of angular distance and momentum ratio distributions in three-jet and Z + two-jet final states in pp collisions. / Collaboration, CMS; Blekman, Freya ; Blekman, Freya; Bols, Emil Sørensen; Chhibra, Simranjit Singh; D'Hondt, Jorgen; De Clercq, Jarne Theo; Lontkovskyi, Denys; Lowette, Steven; Marchesini, Ivan; Moortgat, Seth; Morton, Alexander; Python, Quentin; Tavernier, Stefaan; Van Doninck, Walter; Van Mulders, Petra.

In: European Physical Journal C - Particles & Fields, Vol. 81, No. 9, 852, 27.09.2021.

Research output: Contribution to journal › Article › peer-review

TY - JOUR

T1 - Measurements of angular distance and momentum ratio distributions in three-jet and Z + two-jet final states in pp collisions

AU - Collaboration, CMS

AU - Blekman, Freya

AU - Bols, Emil Sørensen

AU - Chhibra, Simranjit Singh

AU - D'Hondt, Jorgen

AU - De Clercq, Jarne Theo

AU - Lontkovskyi, Denys

AU - Lowette, Steven

AU - Marchesini, Ivan

AU - Moortgat, Seth

AU - Morton, Alexander

AU - Python, Quentin

AU - Tavernier, Stefaan

AU - Van Doninck, Walter

AU - Van Mulders, Petra

N1 - Replaced with the published version. Added the journal reference and the DOI. All the figures and tables can be found at http://cms-results.web.cern.ch/cms-results/public-results/publications/SMP-17-008 (CMS Public Pages)

PY - 2021/9/27

Y1 - 2021/9/27

N2 - Collinear (small-angle) and large-angle, as well as soft and hard radiations are investigated in three-jet and Z + two-jet events collected in proton-proton collisions at the LHC. The normalized production cross sections are measured as a function of the ratio of transverse momenta of two jets and their angular separation. The measurements in the three-jet and Z + two-jet events are based on data collected at a center-of-mass energy of 8 TeV, corresponding to an integrated luminosity of 19.8 fb$^{-1}$. The Z + two-jet events are reconstructed in the dimuon decay channel of the Z boson. The three-jet measurement is extended to include $\sqrt{s} =$ 13 TeV data corresponding to an integrated luminosity of 2.3 fb$^{-1}$. The results are compared to predictions from event generators that include parton showers, multiple parton interactions, and hadronization. The collinear and soft regions are in general well described by parton showers, whereas the regions of large angular separation are often best described by calculations using higher-order matrix elements.

AB - Collinear (small-angle) and large-angle, as well as soft and hard radiations are investigated in three-jet and Z + two-jet events collected in proton-proton collisions at the LHC. The normalized production cross sections are measured as a function of the ratio of transverse momenta of two jets and their angular separation. The measurements in the three-jet and Z + two-jet events are based on data collected at a center-of-mass energy of 8 TeV, corresponding to an integrated luminosity of 19.8 fb$^{-1}$. The Z + two-jet events are reconstructed in the dimuon decay channel of the Z boson. The three-jet measurement is extended to include $\sqrt{s} =$ 13 TeV data corresponding to an integrated luminosity of 2.3 fb$^{-1}$. The results are compared to predictions from event generators that include parton showers, multiple parton interactions, and hadronization. The collinear and soft regions are in general well described by parton showers, whereas the regions of large angular separation are often best described by calculations using higher-order matrix elements.

KW - hep-ex

UR - http://www.scopus.com/inward/record.url?scp=85115860978&partnerID=8YFLogxK

U2 - 10.1140/epjc/s10052-021-09570-2

DO - 10.1140/epjc/s10052-021-09570-2

M3 - Article

C2 - 34727147

VL - 81

JO - European Physical Journal C - Particles & Fields

JF - European Physical Journal C - Particles & Fields

SN - 1434-6044

IS - 9

M1 - 852

ER -

Measurements of angular distance and momentum ratio distributions in three-jet and Z + two-jet final states in pp collisions

Abstract

Bibliographical note

Keywords

Access to Document

Other files and links

Fingerprint

SRP8: Strategic Research Programme: High-Energy Physics at the VUB