Ara
Toplam kayıt 147, listelenen: 21-30
Study of J/psi -> eta phi pi(+)pi(-) at BESIII
(American Physical Society, 2015)
Based on a sample of 2.25×108J/? events taken with the BESIII detector at the BEPCII collider, we present the results of a study of the decay J/?????+?-. The Y(2175) resonance is observed in the invariant mass spectrum of ...
Measurement of the proton form factor by studying e+e- ?p p ¯
(American Physical Society, 2015)
Using data samples collected with the BESIII detector at the BEPCII collider, we measure the Born cross section of e+e-?pp¯ at 12 center-of-mass energies from 2232.4 to 3671.0 MeV. The corresponding effective electromagnetic ...
Observation of eta ' -> omega e(+)e(-)
(American Physical Society, 2015)
Based on a sample of ?? mesons produced in the radiative decay J/????? in 1.31×109 J/? events collected with the BESIII detector, the decay ????e+e- is observed for the first time, with a statistical significance of 8?. ...
Effects of Various Helically Angled Grinding Wheels on The Surface Roughness and Roundness in Grinding Cylindrical Surfaces
(INST ZA KOVINSKE MATERIALE I IN TEHNOLOGIE, 2015)
Grinding is generally used in the final step of machining metallic materials to achieve the necessary surface quality and dimensions. Grinding wheels with flat surfaces are commonly used in the process of grinding. However, ...
A Study on The Future of Low Cost Carrier Business Model in International Air Transportation
(2017)
Uluslararası hava taşımacılığında düşük maliyetli taşıyıcı iş modelinin diğer havayolu iş modellerinden farklı olarak her geçen gün etkisini artırmaya devam ettiği görülmektedir. Bu çalışmanın amacı, düşük maliyetli havayolu ...
Search for the isospin violating decay Y(4260)-> J/psi eta pi(0)
(American Physical Society, 2015)
Using data samples collected at center-of-mass energies of ?s= 4.009, 4.226, 4.257, 4.358, 4.416, and 4.599 GeV with the BESIII detector operating at the BEPCII storage ring, we search for the isospin violating decay Y(4260) ...
Study of dynamics of D0 ?k-e+?e and D0 ??-e+?e decays
(American Physical Society, 2015)
In an analysis of a 2.92 fb-1 data sample taken at 3.773 GeV with the BESIII detector operated at the BEPCII collider, we measure the absolute decay branching fractions B(D0?K-e+?e)=(3.505±0.014±0.033)% and B(D0??-e+?e)= ...
Study of ?cJ decaying into K? (892) K ¯
(American Physical Society, 2015)
Using a data sample of 106 million ?(3686) events collected with the BESIII detector operated at the BEPCII storage ring, we study for the first time the decays ?cJ??KS0K±?? and ?cJ??K+K-?0 in the E1 radiative transition ...
Measurement of Singly Cabibbo Suppressed Decays ?c+ ?p?+?- and ?c+ ?pK+K-
(American Physical Society, 2016)
Using 567 pb-1 of data collected with the BESIII detector at a center-of-mass energy of s=4.599 GeV, near the ?c+?c- threshold, we study the singly Cabibbo-suppressed decays ?c+?p?+?- and ?c+?pK+K-. By normalizing with ...
Observation of the electromagnetic doubly OZI-suppressed decay J /? ???0
(American Physical Society, 2015)
Using a sample of 1.31 billion J/? events accumulated with the BESIII detector at the BEPCII collider, we report the observation of the decay J/????0, which is the first evidence for a doubly Okubo-Zweig-Iizuka suppressed ...