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Pregled bibliografske jedinice broj: 919943

Measurement of the top quark mass in the dileptonic t t-bar decay channel using the mass observables M[bl], M[T2], and M[blnu] in pp collisions at sqrt(s) = 8 TeV


(CMS Collaboration) Sirunyan, Albert; ...; Mesić, Benjamin; Godinović, Nikola; Puljak, Ivica; Starodumov, Andrey; Morović, Srećko; Lelas, Damir; Kovač, Marko; Đurić, Senka et al.
Measurement of the top quark mass in the dileptonic t t-bar decay channel using the mass observables M[bl], M[T2], and M[blnu] in pp collisions at sqrt(s) = 8 TeV // Physical Review D, 96 (2017), 032002, 31 doi:10.1103/PhysRevD.96.032002 (međunarodna recenzija, članak, znanstveni)


CROSBI ID: 919943 Za ispravke kontaktirajte CROSBI podršku putem web obrasca

Naslov
Measurement of the top quark mass in the dileptonic t t-bar decay channel using the mass observables M[bl], M[T2], and M[blnu] in pp collisions at sqrt(s) = 8 TeV

Autori
Sirunyan, Albert ; ... ; Mesić, Benjamin ; Godinović, Nikola ; Puljak, Ivica ; Starodumov, Andrey ; Morović, Srećko ; Lelas, Damir ; Kovač, Marko ; Đurić, Senka ; Ferenček, Dinko ; Brigljević, Vuko ; Luetić, Jelena ; Antunović, Željko ; Kadija, Krešo ; Šuša, Tatjana ; ... ; Woods, Nate

Kolaboracija
CMS Collaboration

Izvornik
Physical Review D (2470-0029) 96 (2017); 032002, 31

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

Ključne riječi
High energy physics, Experimental particle physics, LHC, CMS, Standard Model

Sažetak
A measurement of the top quark mass (M[t]) in the dileptonic t t-bar decay channel is performed using data from proton-proton collisions at a center-of-mass energy of 8 TeV. The data was recorded by the CMS experiment at the LHC and corresponding to an integrated luminosity of 19.7 +/- 0.5 inverse femtobarns. Events are selected with two oppositely charged leptons (l = e, mu) and two jets identified as originating from b quarks. The analysis is based on three kinematic observables whose distributions are sensitive to the value of M[t]. An invariant mass observable, M[bl], and a `stransverse mass' observable, M[T2], are employed in a simultaneous fit to determine the value of M[t] and an overall jet energy scale factor (JSF). A complementary approach is used to construct an invariant mass observable, M[blnu], that is combined with M[T2] to measure M[t]. The shapes of the observables, along with their evolutions in M[t] and JSF, are modeled by a nonparametric Gaussian process regression technique. The sensitivity of the observables to the value of M[t] is investigated using a Fisher information density method. The top quark mass is measured to be 172.22 +/- 0.18 (stat) +0.89/-0.93 (syst) GeV.

Izvorni jezik
Engleski

Znanstvena područja
Fizika



POVEZANOST RADA


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

Citiraj ovu publikaciju

(CMS Collaboration) Sirunyan, Albert; ...; Mesić, Benjamin; Godinović, Nikola; Puljak, Ivica; Starodumov, Andrey; Morović, Srećko; Lelas, Damir; Kovač, Marko; Đurić, Senka et al.
Measurement of the top quark mass in the dileptonic t t-bar decay channel using the mass observables M[bl], M[T2], and M[blnu] in pp collisions at sqrt(s) = 8 TeV // Physical Review D, 96 (2017), 032002, 31 doi:10.1103/PhysRevD.96.032002 (međunarodna recenzija, članak, znanstveni)
(CMS Collaboration) (CMS Collaboration) Sirunyan, A., ..., Mesić, B., Godinović, N., Puljak, I., Starodumov, A., Morović, S., Lelas, D., Kovač, M. & Đurić, S. (2017) Measurement of the top quark mass in the dileptonic t t-bar decay channel using the mass observables M[bl], M[T2], and M[blnu] in pp collisions at sqrt(s) = 8 TeV. Physical Review D, 96, 032002, 31 doi:10.1103/PhysRevD.96.032002.
@article{article, year = {2017}, pages = {31}, DOI = {10.1103/PhysRevD.96.032002}, chapter = {032002}, keywords = {High energy physics, Experimental particle physics, LHC, CMS, Standard Model}, journal = {Physical Review D}, doi = {10.1103/PhysRevD.96.032002}, volume = {96}, issn = {2470-0029}, title = {Measurement of the top quark mass in the dileptonic t t-bar decay channel using the mass observables M[bl], M[T2], and M[blnu] in pp collisions at sqrt(s) = 8 TeV}, keyword = {High energy physics, Experimental particle physics, LHC, CMS, Standard Model}, chapternumber = {032002} }

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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