Pretražite po imenu i prezimenu autora, mentora, urednika, prevoditelja

Napredna pretraga

Pregled bibliografske jedinice broj: 814770

Search for exotic decays of a Higgs boson into undetectable particles and one or more photons


Khachatryan, Vardan; ...; Morović, Srećko; Ferenček, Dinko; Đurić, Senka; Godinović, Nikola; Lelas, Damir; Polić, Dunja; Puljak, Ivica; Ribeiro Cipriano, Pedro Miguel et al.
Search for exotic decays of a Higgs boson into undetectable particles and one or more photons // Physics letters B, 753 (2016), 363-388 doi:10.1016/j.physletb.2015.12.017 (međunarodna recenzija, članak, znanstveni)


CROSBI ID: 814770 Za ispravke kontaktirajte CROSBI podršku putem web obrasca

Naslov
Search for exotic decays of a Higgs boson into undetectable particles and one or more photons

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

Izvornik
Physics letters B (0370-2693) 753 (2016); 363-388

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

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

Sažetak
A search is presented for exotic decays of a Higgs boson into undetectable particles and one or two isolated photons in pp collisions at a center-of-mass energy of 8 TeV. The data correspond to an integrated luminosity of up to 19.4 inverse femtobarns collected with the CMS detector at the LHC. Higgs bosons produced in gluon-gluon fusion and in association with a Z boson are investigated, using models in which the Higgs boson decays into a gravitino and a neutralino or a pair of neutralinos, followed by the decay of the neutralino to a gravitino and a photon. The selected events are consistent with the background-only hypothesis, and limits are placed on the product of cross sections and branching fractions. Assuming a standard model Higgs boson production cross section, a 95% confidence level upper limit is set on the branching fraction of a 125 GeV Higgs boson decaying into undetectable particles and one or two isolated photons as a function of the neutralino mass. For this class of models and neutralino masses from 1 to 120 GeV an upper limit in the range of 7 to 13% is obtained. Further results are given as a function of the neutralino lifetime, and also for a range of Higgs boson masses.

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

Khachatryan, Vardan; ...; Morović, Srećko; Ferenček, Dinko; Đurić, Senka; Godinović, Nikola; Lelas, Damir; Polić, Dunja; Puljak, Ivica; Ribeiro Cipriano, Pedro Miguel et al.
Search for exotic decays of a Higgs boson into undetectable particles and one or more photons // Physics letters B, 753 (2016), 363-388 doi:10.1016/j.physletb.2015.12.017 (međunarodna recenzija, članak, znanstveni)
Khachatryan, V., ..., Morović, S., Ferenček, D., Đurić, S., Godinović, N., Lelas, D., Polić, D., Puljak, I. & Ribeiro Cipriano, P. (2016) Search for exotic decays of a Higgs boson into undetectable particles and one or more photons. Physics letters B, 753, 363-388 doi:10.1016/j.physletb.2015.12.017.
@article{article, year = {2016}, pages = {363-388}, DOI = {10.1016/j.physletb.2015.12.017}, keywords = {High energy physics, Experimental particle physics, LHC, CMS, Standard Model}, journal = {Physics letters B}, doi = {10.1016/j.physletb.2015.12.017}, volume = {753}, issn = {0370-2693}, title = {Search for exotic decays of a Higgs boson into undetectable particles and one or more photons}, 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


Citati