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Pregled bibliografske jedinice broj: 875719

Search for narrow resonances in dilepton mass spectra in proton-proton collisions at sqrt(s) = 13 TeV and combination with 8 TeV data


(CMS) Khachatryan, Vardan; ...; Godinović, Nikola; Lelas, Damir; Puljak, Ivica; ...; Šćulac, Toni; Antunović, Željko; Kovač, Marko; Brigljević, Vuko et al.
Search for narrow resonances in dilepton mass spectra in proton-proton collisions at sqrt(s) = 13 TeV and combination with 8 TeV data // Physics letters. B, 768 (2017), 57-80 doi:10.1016/j.physletb.2017.02.010 (međunarodna recenzija, članak, znanstveni)


CROSBI ID: 875719 Za ispravke kontaktirajte CROSBI podršku putem web obrasca

Naslov
Search for narrow resonances in dilepton mass spectra in proton-proton collisions at sqrt(s) = 13 TeV and combination with 8 TeV data

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

Kolaboracija
CMS

Izvornik
Physics letters. B (0370-2693) 768 (2017); 57-80

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 for narrow resonances in dielectron and dimuon invariant mass spectra has been performed using data obtained from proton-proton collisions at sqrt(s) = 13 TeV collected with the CMS detector. The integrated luminosity for the dielectron sample is 2.7 inverse femtobarns and for the dimuon sample 2.9 inverse femtobarns. The sensitivity of the search is increased by combining these data with a previously analysed set of data obtained at sqrt(s) = 8 TeV and corresponding to a luminosity of 20 inverse femtobarns. No evidence for non-standard-model physics is found, either in the 13 TeV data set alone, or in the combined data set. Upper limits on the product of production cross section and branching fraction have also been calculated in a model- independent manner to enable interpretation in models predicting a narrow dielectron or dimuon resonance structure. Limits are set on the masses of hypothetical particles that could appear in new-physics scenarios. For the Z'[SSM] particle, which arises in the sequential standard model, and for the superstring inspired Z'[psi] particle, 95% confidence level lower mass limits for the combined data sets and combined channels are found to be 3.37 and 2.82 TeV, respectively. The corresponding limits for Kaluza-Klein gravitons arising in the Randall-Sundrum model of extra dimensions with coupling parameters 0.01 and 0.10 are 1.46 and 3.11 TeV, respectively. These results significantly exceed the limits based on the 8 TeV LHC data.

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; ...; Godinović, Nikola; Lelas, Damir; Puljak, Ivica; ...; Šćulac, Toni; Antunović, Željko; Kovač, Marko; Brigljević, Vuko et al.
Search for narrow resonances in dilepton mass spectra in proton-proton collisions at sqrt(s) = 13 TeV and combination with 8 TeV data // Physics letters. B, 768 (2017), 57-80 doi:10.1016/j.physletb.2017.02.010 (međunarodna recenzija, članak, znanstveni)
(CMS) (CMS) Khachatryan, V., ..., Godinović, N., Lelas, D., Puljak, I., ..., Šćulac, T., Antunović, Ž., Kovač, M. & Brigljević, V. (2017) Search for narrow resonances in dilepton mass spectra in proton-proton collisions at sqrt(s) = 13 TeV and combination with 8 TeV data. Physics letters. B, 768, 57-80 doi:10.1016/j.physletb.2017.02.010.
@article{article, year = {2017}, pages = {57-80}, DOI = {10.1016/j.physletb.2017.02.010}, keywords = {high energy physics, experimental particle physics, LHC, CMS, standard model}, journal = {Physics letters. B}, doi = {10.1016/j.physletb.2017.02.010}, volume = {768}, issn = {0370-2693}, title = {Search for narrow resonances in dilepton mass spectra in proton-proton collisions at sqrt(s) = 13 TeV and combination with 8 TeV data}, 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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