Ara
Toplam kayıt 168, listelenen: 21-30
Measurement of the matrix elements for the decays eta -> pi(+)pi(-)pi(0) and eta/eta ' -> pi(0)pi(0)pi(0)
(American Physical Society, 2015)
Based on a sample of 1.31×109 J/? events collected with the BESIII detector at the BEPCII collider, Dalitz plot analyses of selected 79,625 ???+?-?0 events, 33,908 ???0?0?0 events, and 1,888 ????0?0?0 events are performed. ...
Observation and spin-parity determination of the X(1835) in J/? ? ?K0SK0S?
(American Physical Society, 2015)
We report an observation of the process J/? ? ?X(1835) ? ?K0SK0S? at low K0SK0S mass with a statistical significance larger than 12.9? using a data sample of 1.31 × 109 J/? events collected with the BESIII detector. In ...
Improved measurement of the absolute branching fraction of D+ -> (K)over-bar(0)mu(+)nu(mu)
(Springer, 2016)
By analyzing 2.93 fb(-1) of data collected at root s = 3.773 GeV with the BESIII detector, we measure the absolute branching fraction B(D+ -> (K) over bar (0) (+)(mu)nu(mu)) = (8.72 +/- 0.07(stat). +/- 0.18(sys).) %, which ...
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 ...
Hazır MgB2 Tozları ile Mg ve B Tozlarının Karışımı Yolu ile Elde Edilen MgB2 Numunelerinin Kristalografik ve Mikrosertlik Özellikleri Üzerinde Sinterleme Sayısının Etkisi
(Gazi Üniversitesi Fen Bilimleri Dergisi Part C: Tasarım ve Teknoloji, 2022)
Bu çalışmada hazır olarak satın alınan MgB2 tozları ile elementel Mg ve B tozlarının karışımı yolu ile elde edilen MgB2 numunelerinin ısıl işlem sayısının kristalografik ve mikrosertlik özellikleri üzerinde nasıl bir değişim ...
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) ...