2024-03-192024-03-192015-04Ablikim, M. vd. (2015). "Evidence for e+e-→γχc1,2 at center-of-mass energies from 4.009 to 4.360 GeV". Chinese Physics C, 39(4).1674-11372058-6132https://iopscience.iop.org/article/10.1088/1674-1137/39/4/041001https://hdl.handle.net/11452/40488Çalışmada 66 yazar bulunmaktadır. Bu yazarlardan sadece Bursa Uludağ Üniversitesi mensuplarının girişleri yapılmıştır.Using data samples collected at center-of-mass energies of root s=4.009, 4.230, 4.260, and 4.360 GeV with the BESIII detector operating at the BEPCII collider, we perform a search for the process e(+)e(-)->gamma chi(cJ) (J=0, 1, 2) and find evidence for e(+)e(-)->gamma chi(c1) and e(+)e(-)->gamma chi(c2) with statistical significances of 3.0 sigma and 3.4 sigma, respectively. The Born cross sections sigma(B)(e(+)e(-)->gamma chi(cJ)), as well as their upper limits at the 90% confidence level (C.L.) are determined at each center-of-mass energy.eninfo:eu-repo/semantics/openAccessPhysicsHeavy quarkoniaDecays of hadronicElectron-positron collisionsHadron production byArticle0003528288000012-s2.0-84928727132394https://doi.org/10.1088/1674-1137/39/4/041001Physics, nuclearPhysics, particles & fieldsCharmonium; Deterioration; Mesons