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Pregled bibliografske jedinice broj: 814765

Limits on the Higgs boson lifetime and width from its decay to four charged leptons


(CMS Collaboration) Khachatryan, Vardan; ...; Morović, Srećko; Ferenček, Dinko; Đurić, Senka; Godinović, Nikola; Lelas, Damir; Polić, Dunja; Puljak, Ivica; Ribeiro Cipriano, Pedro Miguel et al.
Limits on the Higgs boson lifetime and width from its decay to four charged leptons // Physical review. D, Particles, fields, gravitation, and cosmology, 92 (2015), 7; 072010-072010 doi:10.1103/PhysRevD.92.072010 (međunarodna recenzija, članak, znanstveni)


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Naslov
Limits on the Higgs boson lifetime and width from its decay to four charged leptons

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

Kolaboracija
CMS Collaboration

Izvornik
Physical review. D, Particles, fields, gravitation, and cosmology (1550-7998) 92 (2015), 7; 072010-072010

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

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

Sažetak
Constraints on the lifetime and width of the Higgs boson are obtained from H to ZZ to 4 lepton events using data recorded by the CMS experiment during the LHC run 1 with an integrated luminosity of 5.1 and 19.7 inverse femtobarns at a center-of-mass energy of 7 and 8 TeV, respectively. The measurement of the Higgs boson lifetime is derived from its flight distance in the CMS detector with an upper bound of tau[H] < 1.9E-13 s at the 95% confidence level (CL), corresponding to a lower bound on the width of Gamma[H] > 3.5E-9 MeV. The measurement of the width is obtained from an off-shell production technique, generalized to include anomalous couplings of the Higgs boson to two electroweak bosons. From this measurement, a joint constraint is set on the Higgs boson width and a parameter f[LQ] that expresses an anomalous coupling contribution as an on-shell cross- section fraction. The limit on the Higgs boson width is Gamma[H] < 46 MeV with f[LQ] unconstrained and Gamma[H] < 26 MeV for f[LQ] = 0 at the 95% CL. The constraint f[LQ] < 3.8E-3 at the 95% CL is obtained for the expected standard model Higgs boson width.

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; Ribeiro Cipriano, Pedro Miguel et al.
Limits on the Higgs boson lifetime and width from its decay to four charged leptons // Physical review. D, Particles, fields, gravitation, and cosmology, 92 (2015), 7; 072010-072010 doi:10.1103/PhysRevD.92.072010 (međunarodna recenzija, članak, znanstveni)
(CMS Collaboration) (CMS Collaboration) Khachatryan, V., ..., Morović, S., Ferenček, D., Đurić, S., Godinović, N., Lelas, D., Polić, D., Puljak, I. & Ribeiro Cipriano, P. (2015) Limits on the Higgs boson lifetime and width from its decay to four charged leptons. Physical review. D, Particles, fields, gravitation, and cosmology, 92 (7), 072010-072010 doi:10.1103/PhysRevD.92.072010.
@article{article, year = {2015}, pages = {072010-072010}, DOI = {10.1103/PhysRevD.92.072010}, keywords = {High energy physics, Experimental particle physics, LHC, CMS, Standard Model}, journal = {Physical review. D, Particles, fields, gravitation, and cosmology}, doi = {10.1103/PhysRevD.92.072010}, volume = {92}, number = {7}, issn = {1550-7998}, title = {Limits on the Higgs boson lifetime and width from its decay to four charged leptons}, keyword = {High energy physics, Experimental particle physics, LHC, CMS, Standard Model} }

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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