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Pregled bibliografske jedinice broj: 814813

Search for supersymmetry using razor variables in events with b-tagged jets in pp collisions at sqrt(s) = 8 TeV


(CMS Collaboration) Khachatryan, Vardan; ...; Morović, Srećko; Ferenček, Dinko; Đurić, Senka; Godinović, Nikola; Lelas, Damir; Polić, Dunja; Puljak, Ivica; Antunović, Željko et al.
Search for supersymmetry using razor variables in events with b-tagged jets in pp collisions at sqrt(s) = 8 TeV // Physical review. D, Particles, fields, gravitation, and cosmology, 91 (2015), 5; 052018, 28 doi:10.1103/PhysRevD.91.052018 (međunarodna recenzija, članak, znanstveni)


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Naslov
Search for supersymmetry using razor variables in events with b-tagged jets in pp collisions at sqrt(s) = 8 TeV

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

Kolaboracija
CMS Collaboration

Izvornik
Physical review. D, Particles, fields, gravitation, and cosmology (1550-7998) 91 (2015), 5; 052018, 28

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

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

Sažetak
An inclusive search for supersymmetry in events with at least one b-tagged jet is performed using proton-proton collision data collected by the CMS experiment in 2012 at a center-of-mass energy of 8 TeV. The data set size corresponds to an integrated luminosity of 19.3 inverse femtobarns. The two-dimensional distribution of the razor variables R^2 and M[R] is studied in events with and without leptons. The data are found to be consistent with the expected background, which is modeled with an empirical function. Exclusion limits on supersymmetric particle masses at a 95% confidence level are derived in several simplified supersymmetric scenarios for several choices of the branching fractions. By combining the likelihoods of a search in events without leptons and a search that requires a single lepton (electron or muon), an improved bound on the top-squark mass is obtained. Assuming the lightest supersymmetric particle to be stable and weakly interacting, and to have a mass of 100 GeV, the branching-fraction- dependent (-independent) production of gluinos is excluded for gluino masses up to 1310 (1175) GeV. The corresponding limit for top-squark pair production is 730 (645) GeV.

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 Collaboration) Khachatryan, Vardan; ...; Morović, Srećko; Ferenček, Dinko; Đurić, Senka; Godinović, Nikola; Lelas, Damir; Polić, Dunja; Puljak, Ivica; Antunović, Željko et al.
Search for supersymmetry using razor variables in events with b-tagged jets in pp collisions at sqrt(s) = 8 TeV // Physical review. D, Particles, fields, gravitation, and cosmology, 91 (2015), 5; 052018, 28 doi:10.1103/PhysRevD.91.052018 (međunarodna recenzija, članak, znanstveni)
(CMS Collaboration) (CMS Collaboration) Khachatryan, V., ..., Morović, S., Ferenček, D., Đurić, S., Godinović, N., Lelas, D., Polić, D., Puljak, I. & Antunović, Ž. (2015) Search for supersymmetry using razor variables in events with b-tagged jets in pp collisions at sqrt(s) = 8 TeV. Physical review. D, Particles, fields, gravitation, and cosmology, 91 (5), 052018, 28 doi:10.1103/PhysRevD.91.052018.
@article{article, year = {2015}, pages = {28}, DOI = {10.1103/PhysRevD.91.052018}, chapter = {052018}, keywords = {High energy physics, Experimental particle physics, LHC, CMS, Standard Model}, journal = {Physical review. D, Particles, fields, gravitation, and cosmology}, doi = {10.1103/PhysRevD.91.052018}, volume = {91}, number = {5}, issn = {1550-7998}, title = {Search for supersymmetry using razor variables in events with b-tagged jets in pp collisions at sqrt(s) = 8 TeV}, keyword = {High energy physics, Experimental particle physics, LHC, CMS, Standard Model}, chapternumber = {052018} }

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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