Investigation into the event-activity dependence of gamma(nS) relative production in proton-proton collisions at root s=7 TeV
| dc.WoS.categories | Physics, Particles & Fields | en_US |
| dc.authorid | 0000-0002-9007-8260 | en_US |
| dc.contributor.author | Yetkin, Elif Aslı | |
| dc.date.accessioned | 2020-12-03T07:37:36Z | |
| dc.date.available | 2020-12-03T07:37:36Z | |
| dc.date.issued | 2020-11-02 | |
| dc.department | Fakülteler, Mühendislik ve Doğa Bilimleri Fakültesi, Enerji Sistemleri Mühendisliği Bölümü | en_US |
| dc.description | 39 pages | en_US |
| dc.description.abstract | The ratios of the production cross sections between the excited gamma(2S) and gamma(3S) mesons and the gamma(1S) ground state, detected via their decay into two muons, are studied as a function of the number of charged particles in the event. The data are from proton-proton collisions at root s = 7TeV, corresponding to an integrated luminosity of 4.8 fb(-1), collected with the CMS detector at the LHC. Evidence of a decrease in these ratios as a function of the particle multiplicity is observed, more pronounced at low transverse momentum p(T)(mu mu). For gamma(nS) mesons with p(T)(mu mu) > 7 GeV, where most of the data were collected, the correlation with multiplicity is studied as a function of the underlying event transverse sphericity and the number of particles in a cone around the gamma(nS) direction. The ratios are found to be multiplicity independent for jet-like events. The mean p(T)(mu mu) values for the gamma(nS) states as a function of particle multiplicity are also measured and found to grow more steeply as their mass increases. | en_US |
| dc.fullTextLevel | Full Text | en_US |
| dc.identifier.doi | 10.1007/JHEP11(2020)001 | |
| dc.identifier.issn | 1029-8479 | |
| dc.identifier.scopus | 2-s2.0-85096395259 | en_US |
| dc.identifier.uri | https://hdl.handle.net/11411/2766 | |
| dc.identifier.uri | https://doi.org/10.1007/JHEP11(2020)001 | |
| dc.identifier.wos | WOS:000585126400001 | en_US |
| dc.identifier.wosquality | Q1 | en_US |
| dc.indekslendigikaynak | Web of Science | en_US |
| dc.indekslendigikaynak | Scopus | en_US |
| dc.issue | 11 | en_US |
| dc.language.iso | en | en_US |
| dc.national | International | en_US |
| dc.numberofauthors | 1000+ | en_US |
| dc.publisher | Springer | en_US |
| dc.relation.ispartof | Journal of High Energy Physics | en_US |
| dc.relation.publicationcategory | Makale - Uluslararası Hakemli Dergi - Kurum Öğretim Elemanı | en_US |
| dc.rights | info:eu-repo/semantics/openAccess | en_US |
| dc.subject | Hadron-Hadron scattering (experiments) | en_US |
| dc.subject | Particle correlations and fluctuations | en_US |
| dc.subject | B physics | en_US |
| dc.subject | Quarkonium | en_US |
| dc.title | Investigation into the event-activity dependence of gamma(nS) relative production in proton-proton collisions at root s=7 TeV | |
| dc.type | Article |
