Observation of Two Excited B-c(+) States and Measurement of the B-c(+) (2S) Mass in pp Collisions at root s=13 TeV
| dc.WoS.categories | Physics, Multidisciplinary | en_US |
| dc.authorid | 0000-0002-9007-8260 | en_US |
| dc.contributor.author | Yetkin, Elif Aslı | |
| dc.date.accessioned | 2021-01-18T06:44:09Z | |
| dc.date.available | 2021-01-18T06:44:09Z | |
| dc.date.issued | 2019-04-02 | |
| dc.department | Fakülteler, Mühendislik ve Doğa Bilimleri Fakültesi, Enerji Sistemleri Mühendisliği Bölümü | en_US |
| dc.description.abstract | Signals consistent with the B-c(+)(2S) and B-c*(+)(2S) states are observed in proton-proton collisions at root s = 13 TeV, in an event sample corresponding to an integrated luminosity of 143 fb(-1), collected by the CMS experiment during the 2015-2018 LHC running periods. These excited (b) over barc states are observed in the B-c(+)pi(+)pi(-) invariant mass spectrum, with the ground state B-c(+) reconstructed through its decay to J/psi pi(+). The two states are reconstructed as two well-resolved peaks, separated in mass by 29.1 +/- 1.5(stat) +/- 0.7(syst) MeV. The observation of two peaks, rather than one, is established with a significance exceeding five standard deviations. The mass of the B-c(+)(2S) meson is measured to be 6871.0 +/- 1.2(stat) +/- 0.8(syst) +/- 0.8(B-c(+)) MeV, where the last term corresponds to the uncertainty in the world-average B-c(+) mass. | en_US |
| dc.fullTextLevel | Full Text | en_US |
| dc.identifier.doi | 10.1103/PhysRevLett.122.132001 | |
| dc.identifier.issn | 1079-7114 | |
| dc.identifier.issn | 0031-9007 | |
| dc.identifier.pmid | 31012626 | en_US |
| dc.identifier.scopus | 2-s2.0-85064123792 | en_US |
| dc.identifier.uri | https://hdl.handle.net/11411/3117 | |
| dc.identifier.uri | https://doi.org/10.1103/PhysRevLett.122.132001 | |
| dc.identifier.wos | WOS:000463900300005 | en_US |
| dc.identifier.wosquality | Q1 | en_US |
| dc.indekslendigikaynak | Web of Science | en_US |
| dc.indekslendigikaynak | Scopus | en_US |
| dc.indekslendigikaynak | PubMed | en_US |
| dc.issue | 13 | en_US |
| dc.language.iso | en | en_US |
| dc.national | International | en_US |
| dc.numberofauthors | 200+ | en_US |
| dc.publisher | AMER PHYSICAL SOC | en_US |
| dc.relation.ispartof | PHYSICAL REVIEW LETTERS | 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 | B-C SPECTROSCOPY | en_US |
| dc.subject | MESONS | en_US |
| dc.title | Observation of Two Excited B-c(+) States and Measurement of the B-c(+) (2S) Mass in pp Collisions at root s=13 TeV | |
| dc.type | Article | |
| dc.volume | 122 | en_US |
