Title
Measurement of Long-Range Near-Side Two-Particle Angular Correlations in pp Collisions at s =13 TeV
Date Issued
27 April 2016
Access level
open access
Resource Type
journal article
Author(s)
Khachatryan V.
Sirunyan A.M.
Tumasyan A.
Adam W.
Asilar E.
Bergauer T.
Brandstetter J.
Brondolin E.
Dragicevic M.
Erö J.
Flechl M.
Friedl M.
Frühwirth R.
Ghete V.M.
Hartl C.
Hörmann N.
Hrubec J.
Jeitler M.
Knünz V.
König A.
Krammer M.
Krätschmer I.
Liko D.
Matsushita T.
Mikulec I.
Rabady D.
Rahbaran B.
Rohringer H.
Schieck J.
Schöfbeck R.
Strauss J.
Treberer-Treberspurg W.
Waltenberger W.
Wulz C.E.
Mossolov V.
Shumeiko N.
Suarez Gonzalez J.
Alderweireldt S.
Cornelis T.
De Wolf E.A.
Janssen X.
Knutsson A.
Lauwers J.
Luyckx S.
Van De Klundert M.
Van Haevermaet H.
Van Mechelen P.
Van Remortel N.
Van Spilbeeck A.
Abu Zeid S.
Blekman F.
D'Hondt J.
Daci N.
De Bruyn I.
Deroover K.
Heracleous N.
Keaveney J.
Lowette S.
Moreels L.
Olbrechts A.
Python Q.
Strom D.
Tavernier S.
Van Doninck W.
Van Mulders P.
Van Onsem G.P.
Van Parijs I.
Barria P.
Brun H.
Caillol C.
Clerbaux B.
De Lentdecker G.
Fasanella G.
Favart L.
Grebenyuk A.
Karapostoli G.
Lenzi T.
Léonard A.
Maerschalk T.
Marinov A.
Perniè L.
Randle-Conde A.
Seva T.
Vander Velde C.
Vanlaer P.
Yonamine R.
Zenoni F.
Zhang F.
Beernaert K.
Benucci L.
Cimmino A.
Crucy S.
Dobur D.
Fagot A.
Garcia G.
Gul M.
McCartin J.
Ocampo Rios A.A.
Poyraz D.
Ryckbosch D.
Publisher(s)
American Physical Society
Abstract
Results on two-particle angular correlations for charged particles produced in pp collisions at a center-of-mass energy of 13 TeV are presented. The data were taken with the CMS detector at the LHC and correspond to an integrated luminosity of about 270 nb-1. The correlations are studied over a broad range of pseudorapidity (|η|<2.4) and over the full azimuth (φ) as a function of charged particle multiplicity and transverse momentum (pT). In high-multiplicity events, a long-range (|Δη|>2.0), near-side (Δφ≈0) structure emerges in the two-particle Δη-Δφ correlation functions. The magnitude of the correlation exhibits a pronounced maximum in the range 1.0<pT<2.0 GeV/c and an approximately linear increase with the charged particle multiplicity, with an overall correlation strength similar to that found in earlier pp data at s=7 TeV. The present measurement extends the study of near-side long-range correlations up to charged particle multiplicities Nch∼180, a region so far unexplored in pp collisions. The observed long-range correlations are compared to those seen in pp, pPb, and PbPb collisions at lower collision energies.
Volume
116
Issue
17
Language
English
OCDE Knowledge area
Física de partículas, Campos de la Física
Scopus EID
2-s2.0-84971320396
Source
Physical Review Letters
ISSN of the container
00319007
Sponsor(s)
Finally, we acknowledge the enduring support for the construction and operation of the LHC and the CMS detector provided by the following funding agencies: BMWFW and FWF (Austria); FNRS and FWO (Belgium); CNPq, CAPES, FAPERJ, and FAPESP (Brazil); MES (Bulgaria); CERN; CAS, MoST, and NSFC (China); COLCIENCIAS (Colombia); MSES and CSF (Croatia); RPF (Cyprus); MoER, ERC IUT and ERDF (Estonia); Academy of Finland, MEC, and HIP (Finland); CEA and CNRS/IN2P3 (France); BMBF, DFG, and HGF (Germany); GSRT (Greece); OTKA and NIH (Hungary); DAE and DST (India); IPM (Iran); SFI (Ireland); INFN (Italy); MSIP and NRF (Republic of Korea); LAS (Lithuania); MOE and UM (Malaysia); CINVESTAV, CONACYT, SEP, and UASLP-FAI (Mexico); MBIE (New Zealand); PAEC (Pakistan); MSHE and NSC (Poland); FCT (Portugal); JINR (Dubna); MON, RosAtom, RAS and RFBR (Russia); MESTD (Serbia); SEIDI and CPAN (Spain); Swiss Funding Agencies (Switzerland); MST (Taipei); ThEPCenter, IPST, STAR and NSTDA (Thailand); TUBITAK and TAEK (Turkey); NASU and SFFR (Ukraine); STFC (United Kingdom); DOE and NSF (USA).
Sources of information:
Directorio de Producción Científica
Scopus