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Pregled bibliografske jedinice broj: 486263

Observation of Long-Range, Near-Side Angular Correlations in Proton-Proton Collisions at the LHC


Khachatryan, Vardan; Godinović, Nikola; Lelas, Karlo; Pleština, Roko; Polić, Dunja; Puljak, Ivica; Antunović, Željko; Dželalija, Mile; Brigljević, Vuko; Đurić, Senka et al.
Observation of Long-Range, Near-Side Angular Correlations in Proton-Proton Collisions at the LHC // Journal of High Energy Physics, 2010 (2010), 9; 1-38 doi:10.1007/JHEP09(2010)091Open Access (međunarodna recenzija, članak, znanstveni)


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Naslov
Observation of Long-Range, Near-Side Angular Correlations in Proton-Proton Collisions at the LHC

Autori
Khachatryan, Vardan ; Godinović, Nikola ; Lelas, Karlo ; Pleština, Roko ; Polić, Dunja ; Puljak, Ivica ; Antunović, Željko ; Dželalija, Mile ; Brigljević, Vuko ; Đurić, Senka ; Kadija, Krešo ; Morović, Srećko ; ... ; Weinberg, Marc

Izvornik
Journal of High Energy Physics (1029-8479) 2010 (2010), 9; 1-38

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

Ključne riječi
LHC; CMS; Minimum Bias; Diffraction; Angular Correlations

Sažetak
Results on two-particle angular correlations for charged particles emitted in proton-proton collisions at center-of-mass energies of 0.9, 2.36, and 7 TeV are presented, using data collected with the CMS detector over a broad range of pseudorapidity (η) and azimuthal angle (ϕ). Short-range correlations in Δη, which are studied in minimum bias events, are characterized using a simple “independent cluster” parametrization in order to quantify their strength (cluster size) and their extent in η (cluster decay width). Long-range azimuthal correlations are studied differentially as a function of charged particle multiplicity and particle transverse momentum using a 980 nb−1 data set at 7 TeV. In high multiplicity events, a pronounced structure emerges in the two-dimensional correlation function for particle pairs with intermediate pT of 1–3 GeV/c, 2.0 < |Δη| < 4.8 and Δϕ ≈ 0. This is the first observation of such a long-range, near-side feature in two-particle correlation functions in proton-proton or proton-antiproton collisions.

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

Khachatryan, Vardan; Godinović, Nikola; Lelas, Karlo; Pleština, Roko; Polić, Dunja; Puljak, Ivica; Antunović, Željko; Dželalija, Mile; Brigljević, Vuko; Đurić, Senka et al.
Observation of Long-Range, Near-Side Angular Correlations in Proton-Proton Collisions at the LHC // Journal of High Energy Physics, 2010 (2010), 9; 1-38 doi:10.1007/JHEP09(2010)091Open Access (međunarodna recenzija, članak, znanstveni)
Khachatryan, V., Godinović, N., Lelas, K., Pleština, R., Polić, D., Puljak, I., Antunović, Ž., Dželalija, M., Brigljević, V. & Đurić, S. (2010) Observation of Long-Range, Near-Side Angular Correlations in Proton-Proton Collisions at the LHC. Journal of High Energy Physics, 2010 (9), 1-38 doi:10.1007/JHEP09(2010)091Open Access.
@article{article, year = {2010}, pages = {1-38}, DOI = {10.1007/JHEP09(2010)091Open Access}, keywords = {LHC, CMS, Minimum Bias, Diffraction, Angular Correlations}, journal = {Journal of High Energy Physics}, doi = {10.1007/JHEP09(2010)091Open Access}, volume = {2010}, number = {9}, issn = {1029-8479}, title = {Observation of Long-Range, Near-Side Angular Correlations in Proton-Proton Collisions at the LHC}, keyword = {LHC, CMS, Minimum Bias, Diffraction, Angular Correlations} }

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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