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Pregled bibliografske jedinice broj: 875704

Jet energy scale and resolution in the CMS experiment in pp collisions at 8 TeV


(CMS) Khachatryan, Vardan; ...; Pleština, R.; ...; Godinović, Nikola; Lelas, Damir; Puljak, Ivica; ...; Antunović, Željko; Kovač, Marko et al.
Jet energy scale and resolution in the CMS experiment in pp collisions at 8 TeV // Journal of Instrumentation, 12 (2017), P02014, 95 doi:10.1088/1748-0221/12/02/P02014 (međunarodna recenzija, članak, znanstveni)


CROSBI ID: 875704 Za ispravke kontaktirajte CROSBI podršku putem web obrasca

Naslov
Jet energy scale and resolution in the CMS experiment in pp collisions at 8 TeV

Autori
Khachatryan, Vardan ; ... ; Pleština, R. ; ... ; Godinović, Nikola ; Lelas, Damir ; Puljak, Ivica ; ... ; Antunović, Željko ; Kovač, Marko ; Brigljević, Vuko ; Kadija, Krešo ; Luetić, Jelena ; Mićanović, Saša ; Sudić, Lucija ; ... ; Morović, Srećko ; ... ; Ferenček, Dinko ; ... ; Đurić, Senka ; ... ; Woods, Nate

Kolaboracija
CMS

Izvornik
Journal of Instrumentation (1748-0221) 12 (2017); P02014, 95

Vrsta, podvrsta i kategorija rada
Radovi u časopisima, članak, znanstveni

Ključne riječi
high energy physics ; experimental particle physics ; LHC ; CMS ; standard model

Sažetak
Improved jet energy scale corrections, based on a data sample corresponding to an integrated luminosity of 19.7 inverse-femtobarns collected by the CMS experiment in proton-proton collisions at a center-of-mass energy of 8 TeV, are presented. The corrections as a function of pseudorapidity eta and transverse momentum pT are extracted from data and simulated events combining several channels and methods. They account successively for the effects of pileup, uniformity of the detector response, and residual data-simulation jet energy scale differences. Further corrections, depending on the jet flavor and distance parameter (jet size) R, are also presented. The jet energy resolution is measured in data and simulated events and is studied as a function of pileup, jet size, and jet flavor. Typical jet energy resolutions at the central rapidities are 15-20% at 30 GeV, about 10% at 100 GeV, and 5% at 1 TeV. The studies exploit events with dijet topology, as well as photon+jet, Z+jet and multijet events. Several new techniques are used to account for the various sources of jet energy scale corrections, and a full set of uncertainties, and their correlations, are provided. The final uncertainties on the jet energy scale are below 3% across the phase space considered by most analyses (pT > 30 GeV and abs(eta) < 5.0). In the barrel region (abs(eta) < 1.3) an uncertainty below 1% for pT > 30 GeV is reached, when excluding the jet flavor uncertainties, which are provided separately for different jet flavors. A new benchmark for jet energy scale determination at hadron colliders is achieved with 0.32% uncertainty for jets with pT of the order of 165-330 GeV, and abs(eta) < 0.8.

Izvorni jezik
Engleski

Znanstvena područja
Fizika



POVEZANOST RADA


Projekt / tema
HRZZ-IP-2013-11-7118 - Mjerenje svojstava Higgsovog bozona i potraga za novom fizikom detektorom CMS (Ivica Puljak, )
HRZZ-IS-09.01/346 - Potraga za novim standardnim modelom elementarnih čestica na LHC-u: od preciznih mjerenja elektroslabih procesa do direktnih potraga za novom fizikom (Vuko Brigljević, )

Ustanove
Fakultet elektrotehnike, strojarstva i brodogradnje, Split,
Institut "Ruđer Bošković", Zagreb,
Prirodoslovno-matematički fakultet, Split

Citiraj ovu publikaciju

(CMS) Khachatryan, Vardan; ...; Pleština, R.; ...; Godinović, Nikola; Lelas, Damir; Puljak, Ivica; ...; Antunović, Željko; Kovač, Marko et al.
Jet energy scale and resolution in the CMS experiment in pp collisions at 8 TeV // Journal of Instrumentation, 12 (2017), P02014, 95 doi:10.1088/1748-0221/12/02/P02014 (međunarodna recenzija, članak, znanstveni)
(CMS) (CMS) Khachatryan, V., ..., Pleština, R., ..., Godinović, N., Lelas, D., Puljak, I., ..., Antunović, Ž. & Kovač, M. (2017) Jet energy scale and resolution in the CMS experiment in pp collisions at 8 TeV. Journal of Instrumentation, 12, P02014, 95 doi:10.1088/1748-0221/12/02/P02014.
@article{article, year = {2017}, pages = {95}, DOI = {10.1088/1748-0221/12/02/P02014}, chapter = {P02014}, keywords = {high energy physics, experimental particle physics, LHC, CMS, standard model}, journal = {Journal of Instrumentation}, doi = {10.1088/1748-0221/12/02/P02014}, volume = {12}, issn = {1748-0221}, title = {Jet energy scale and resolution in the CMS experiment in pp collisions at 8 TeV}, keyword = {high energy physics, experimental particle physics, LHC, CMS, standard model}, chapternumber = {P02014} }

Časopis indeksira:


  • Current Contents Connect (CCC)
  • Web of Science Core Collection (WoSCC)
    • Science Citation Index Expanded (SCI-EXP)
    • SCI-EXP, SSCI i/ili A&HCI
  • Scopus


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