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Pregled bibliografske jedinice broj: 538741

Measurement of B-Bbar angular correlations based on secondary vertex reconstruction at sqrt(s)=7 TeV


Chatrchyan, S.; ...; Godinović, Nikola; Lelas, Damir; Lelas, Karlo; Pleština, Roko; Polić, Dunja; Puljak, Ivica; Antunović, Željko; Dželalija, Mile et al.
Measurement of B-Bbar angular correlations based on secondary vertex reconstruction at sqrt(s)=7 TeV // The Journal of high energy physics, (2011), 3; 136-1 doi:10.1007/JHEP03(2011)136 (međunarodna recenzija, članak, znanstveni)


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Naslov
Measurement of B-Bbar angular correlations based on secondary vertex reconstruction at sqrt(s)=7 TeV

Autori
Chatrchyan, S. ; ... ; Godinović, Nikola ; Lelas, Damir ; Lelas, Karlo ; Pleština, Roko ; Polić, Dunja ; Puljak, Ivica ; Antunović, Željko ; Dželalija, Mile ; Brigljević, Vuko ; Đurić, Senka ; Kadija, Krešo ; Morović, Srećko ; ... ; Weinberg, M.

Izvornik
The Journal of high energy physics (1126-6708) (2011), 3; 136-1

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

Ključne riječi
LHC; CMS; Physics; heavy quarks

Sažetak
A measurement of the angular correlations between beauty and anti-beauty hadrons (B B-bar) produced in pp collisions at a centre-of-mass energy of 7 TeV at the CERN LHC is presented, probing for the first time the region of small angular separation. The B hadrons are identified by the presence of displaced secondary vertices from their decays. The B hadron angular separation is reconstructed from the decay vertices and the primary-interaction vertex. The differential B B-bar production cross section, measured from a data sample collected by CMS and corresponding to an integrated luminosity of 3.1 inverse picobarns, shows that a sizable fraction of the B B-bar pairs are produced with small opening angles. These studies provide a test of QCD and further insight into the dynamics of b b-bar production.

Izvorni jezik
Engleski

Znanstvena područja
Fizika

Napomena
The CMS Collaboration



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; Lelas, Karlo; Pleština, Roko; Polić, Dunja; Puljak, Ivica; Antunović, Željko; Dželalija, Mile et al.
Measurement of B-Bbar angular correlations based on secondary vertex reconstruction at sqrt(s)=7 TeV // The Journal of high energy physics, (2011), 3; 136-1 doi:10.1007/JHEP03(2011)136 (međunarodna recenzija, članak, znanstveni)
Chatrchyan, S., ..., Godinović, N., Lelas, D., Lelas, K., Pleština, R., Polić, D., Puljak, I., Antunović, Ž. & Dželalija, M. (2011) Measurement of B-Bbar angular correlations based on secondary vertex reconstruction at sqrt(s)=7 TeV. The Journal of high energy physics, (3), 136-1 doi:10.1007/JHEP03(2011)136.
@article{article, year = {2011}, pages = {136-1-136-}, DOI = {10.1007/JHEP03(2011)136}, keywords = {LHC, CMS, Physics, heavy quarks}, journal = {The Journal of high energy physics}, doi = {10.1007/JHEP03(2011)136}, number = {3}, issn = {1126-6708}, title = {Measurement of B-Bbar angular correlations based on secondary vertex reconstruction at sqrt(s)=7 TeV}, keyword = {LHC, CMS, Physics, heavy quarks} }

Časopis indeksira:


  • Current Contents Connect (CCC)
  • Web of Science Core Collection (WoSCC)
    • SCI-EXP, SSCI i/ili A&HCI
  • Scopus


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