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Pregled bibliografske jedinice broj: 672811

Search for anomalous production of highly boosted Z bosons decaying to μ+μ− in proton–proton collisions at sqrt(s) = 7 TeV


Chatrchyan, S.; ...; Godinović, Nikola; Lelas, Damir; Pleština, Roko; Polić, Dunja; Puljak, Ivica; Antunović, Željko; Kovač, Marko; Brigljević, Vuko et al.
Search for anomalous production of highly boosted Z bosons decaying to μ+μ− in proton–proton collisions at sqrt(s) = 7 TeV // Physics letters. B, 722 (2013), 1/3; 28-47 doi:10.1016/j.physletb.2013.03.037 (međunarodna recenzija, članak, znanstveni)


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Naslov
Search for anomalous production of highly boosted Z bosons decaying to μ+μ− in proton–proton collisions at sqrt(s) = 7 TeV

Autori
Chatrchyan, S. ; ... ; Godinović, Nikola ; Lelas, Damir ; Pleština, Roko ; Polić, Dunja ; Puljak, Ivica ; Antunović, Željko ; Kovač, Marko ; Brigljević, Vuko ; Đurić, Senka ; Kadija, Krešo ; Luetić, Jelena ; Morović, Srećko ; ... ; Mekterović, Darko ; ... ; Swanson, J.

Izvornik
Physics letters. B (0370-2693) 722 (2013), 1/3; 28-47

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

Ključne riječi
CMS; physics; dimuons; new phenomena; excited quarks

Sažetak
Results are reported from a search for the anomalous production of highly boosted Z bosons with large transverse momentum and decaying to dimuons. Such Z bosons may be produced in the decays of new heavy particles. The search uses pp collision data at sqrt(s) = 7 TeV, corresponding to an integrated luminosity of 5.0 inverse femtobarns recorded with the CMS detector. The shape of the observed transverse-momentum distribution of Z bosons is consistent with standard model expectations. Constraints are obtained on models predicting the production of excited quarks decaying via electroweak processes. Assuming a compositeness scale that is equal to the excited quark mass as well as transition coupling strengths between Z bosons and excited quarks that are equal to standard model couplings to quarks, masses of excited quarks below 1.94 TeV are excluded at the 95% confidence level. For excited quark production via a novel contact interactions, masses below 2.22 TeV are excluded, even if the excited quarks do not couple to gluons.

Izvorni jezik
Engleski

Znanstvena područja
Fizika



POVEZANOST RADA


Projekt / tema
023-0982887-3064 - Potraga za Higgsovim bozonom i novom fizikom detektorom CMS (Ivica Puljak, )
098-0982887-2878 - Eksperimentalna fizika na LHC energijama (Krešo Kadija, )

Ustanove
Fakultet elektrotehnike, strojarstva i brodogradnje, Split,
Institut "Ruđer Bošković", Zagreb

Citiraj ovu publikaciju

Chatrchyan, S.; ...; Godinović, Nikola; Lelas, Damir; Pleština, Roko; Polić, Dunja; Puljak, Ivica; Antunović, Željko; Kovač, Marko; Brigljević, Vuko et al.
Search for anomalous production of highly boosted Z bosons decaying to μ+μ− in proton–proton collisions at sqrt(s) = 7 TeV // Physics letters. B, 722 (2013), 1/3; 28-47 doi:10.1016/j.physletb.2013.03.037 (međunarodna recenzija, članak, znanstveni)
Chatrchyan, S., ..., Godinović, N., Lelas, D., Pleština, R., Polić, D., Puljak, I., Antunović, Ž., Kovač, M. & Brigljević, V. (2013) Search for anomalous production of highly boosted Z bosons decaying to μ+μ− in proton–proton collisions at sqrt(s) = 7 TeV. Physics letters. B, 722 (1/3), 28-47 doi:10.1016/j.physletb.2013.03.037.
@article{article, year = {2013}, pages = {28-47}, DOI = {10.1016/j.physletb.2013.03.037}, keywords = {CMS, physics, dimuons, new phenomena, excited quarks}, journal = {Physics letters. B}, doi = {10.1016/j.physletb.2013.03.037}, volume = {722}, number = {1/3}, issn = {0370-2693}, title = {Search for anomalous production of highly boosted Z bosons decaying to μ+μ− in proton–proton collisions at sqrt(s) = 7 TeV}, keyword = {CMS, physics, dimuons, new phenomena, excited quarks} }

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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