Show simple item record

dc.contributor.authorKolcu, Onur Buğra
dc.contributor.otherBESIII Collaboration
dc.identifier.citationAblikim, M., Achasov, M. N., Adlarson, P., Ahmed, S., Albrecht, M., Alekseev, M., . . . Collaboration, B. (2019). Study of e(+)e(-) -> gamma omega J/psi and Observation of X(3872) -> omega J/psi. Physical Review Letters, 122(23), 8. doi:10.1103/PhysRevLett.122.232002en_US
dc.descriptionKolcu, Onur Buğra (Arel Author)en_US
dc.description.abstractWe study the e(+)e(-) -> gamma omega J/psi process using 11.6 fb(-1) e(+)e(-) annihilation data taken at center-of-mass energies from root s = 4.008 GeV to 4.600 GeV with the BESIII detector at the BEPCII storage ring. The X(3872) resonance is observed for the first time in the omega J/psi system with a significance of more than 5 sigma. The relative decay ratio of X(3872) -> omega J/psi and pi(+)pi(-)J/psi is measured to be R = 1.6(-0.3)(+0.4) +/- 0.2, where the first uncertainty is statistical and the second systematic (the same hereafter). The root s-dependent cross section of e(+)e(-) -> gamma X(3872) is also measured and investigated, and it can be described by a single Breit- Wigner resonance, referred to as the Y(4200), with a mass of 4200.6(-13.3)(+7.9) +/- 3.0 MeV/c(2) and a width of 115(-26)(+38) +/- 12 MeV. In addition, to describe the omega J/psi mass distribution above 3.9 GeV/c(2), we need at least one additional Breit-Wigner resonance, labeled as X(3915), in the fit. The mass and width of the X(3915) are determined. The resonant parameters of the X(3915) agree with those of the Y(3940) in B -> K omega J/psi and of the X(3915) in gamma gamma -> omega J/psi observed by the Belle and BABAR experiments within errors.en_US
dc.publisherAmer Physical Soc.en_US
dc.rightsAttribution 3.0 United States*
dc.titleStudy of e(+)e(-) -> gamma omega J/psi and Observation of X(3872) -> omega J/psien_US
dc.relation.journalPhysical Review Lettersen_US
dc.contributor.departmentMühendislik ve Mimarlık Fakültesi, Elektrik-Elektronik Mühendisliği Bölümüen_US
dc.relation.publicationcategoryMakale - Uluslararası Hakemli Dergi - Kurum Öğretim Elemanıen_US

Files in this item


This item appears in the following Collection(s)

Show simple item record

Except where otherwise noted, this item's license is described as info:eu-repo/semantics/openAccess