Measurement of prompt J/psi pair production in pp collisions at root s = 7 Tev
dc.contributor.author | Chatrchyan, S. | |
dc.contributor.author | Işıldak, Bora | |
dc.date.accessioned | 2014-11-25T13:43:28Z | |
dc.date.available | 2014-11-25T13:43:28Z | |
dc.date.issued | 2014-09 | |
dc.identifier.issn | 1029-8479 | |
dc.identifier.uri | http://link.springer.com/article/10.1007/JHEP09%282014%29094 | |
dc.identifier.uri | http://hdl.handle.net/10679/678 | |
dc.description.abstract | Production of prompt J/psi meson pairs in proton-proton collisions at root s = 7 TeV is measured with the CMS experiment at the LHC in a data sample corresponding to an integrated luminosity of about 4.7 fb(-1). The two J/psi mesons are fully reconstructed via their decays into mu(+)mu(-) pairs. This observation provides for the first time access to the high-transverse-momentum region of J/psi pair production where model predictions are not yet established. The total and differential cross sections are measured in a phase space defined by the individual J/psi transverse momentum (p(T)(J/psi)) and rapidity (vertical bar y(J/psi)vertical bar): vertical bar y(J/psi)vertical bar < 1.2 for p(T)(J/psi) > 6.5 GeV/c; 1.2 < vertical bar y(J/psi)vertical bar < 1.43 for a pT threshold that scales linearly with vertical bar y(J/psi)vertical bar from 6.5 to 4.5 GeV/c; and 1.43 < vertical bar y(J/psi)vertical bar < 2.2 for p(T)(J/psi) > 4.5 GeV/c. The total cross section, assuming unpolarized prompt J/psi pair production is 1.49 +/- 0.07 (stat) +/- 0.13 (syst) nb. Different assumptions about the J/psi polarization imply modifications to the cross section ranging from -31% to +27%. | en_US |
dc.description.sponsorship | BMWF and FWF ; FNRS and FWO ; CNPq, CAPES, FAPERJ, and FAPESP ; MEYS ; CERN ; CAS, MoST, and NSFC ; COLCIENCIAS ; MSES ; RPF ; MoER, SF0690030s09 and ERDF ; Academy of Finland, MEC, and HIP ; CEA and CNRS/IN2P3 ; BMBF, DFG, and HGF ; GSRT ; OTKA and NKTH ; DAE and DST ; IPM ; SFI ; INFN ; NRF and WCU ; LAS ; CINVESTAV, CONACYT, SEP, and UASLP-FAI ; MSI ; PAEC ; MSHE and NSC ; FCT ; JINR ; MSTD ; SEIDI and CPAN ; Swiss Funding Agencies ; NSC ; ThEPCenter, IPST and NSTDA ; TUBITAK and TAEK ; NASU ; STFC ; DOE and NSF ; the Marie-Curie programme and the European Research Council and EPLANET ; the Leventis Foundation ; the A.P. Sloan Foundation ; the Alexander von Humboldt Foundation ; the Belgian Federal Science Policy Office ; the Fonds pour la Formation à la Recherche dans l’Industrie et dans l’Agriculture ; the Agentschap voor Innovatie door Wetenschap en Technologie ; the Ministry of Education, Youth and Sports of Czech Republic ; the Council of Science and Industrial Research, India ; the Compagnia di San Paolo ; the HOMING PLUS programme of Foundation for Polish Science, cofinanced by EU, Regional Development Fund ; and the Thalis and Aristeia programmes cofinanced by EU-ESF and the Greek NSRF. | |
dc.language.iso | eng | en_US |
dc.publisher | Springer Science+Business Media | en_US |
dc.relation | info:turkey/grantAgreement/TUBITAK | en_US |
dc.relation.ispartof | Journal of High Energy Physics | |
dc.rights | restrictedAccess | |
dc.title | Measurement of prompt J/psi pair production in pp collisions at root s = 7 Tev | en_US |
dc.type | Article | en_US |
dc.peerreviewed | yes | en_US |
dc.publicationstatus | published | en_US |
dc.contributor.department | Özyeğin University | |
dc.contributor.authorID | (ORCID 0000-0002-0283-5234 & YÖK ID 124605) Işıldak, Bora | |
dc.contributor.ozuauthor | Işıldak, Bora | |
dc.creator | The CMS Collaboration | |
dc.identifier.issue | 9 | |
dc.identifier.wos | WOS:000342431400001 | |
dc.identifier.doi | 10.1007/JHEP09(2014)094 | |
dc.subject.keywords | Hadron-Hadron Scattering | en_US |
dc.subject.keywords | B physics | en_US |
dc.identifier.scopus | SCOPUS:2-s2.0-84907232488 | |
dc.contributor.authorMale | 1 |
Files in this item
Files | Size | Format | View |
---|---|---|---|
There are no files associated with this item. |
This item appears in the following Collection(s)
Share this page