Ara
Toplam kayıt 147, listelenen: 51-60
Precise Measurement of the e+e- ??+?-J /? Cross Section at Center-of-Mass Energies from 3.77 to 4.60 GeV
(American Physical Society, 2017)
The cross section for the process e+e-??+?-J/? is measured precisely at center-of-mass energies from 3.77 to 4.60 GeV using 9 fb-1 of data collected with the BESIII detector operating at the BEPCII storage ring. Two resonant ...
Observation of e+e- ? ?+?- hc and a Neutral Charmoniumlike Structure Zc(4020)0
(American Physical Society, 2014)
Using data collected with the BESIII detector operating at the Beijing Electron Positron Collider at center-of-mass energies of ?s = 4.23, 4.26, and 4.36 GeV, we observe e+e- ? ?+?-hc for the first time. The Born cross ...
Consumer Behavior In The Process Of Purchasing Tourism Product In Social Media
(2017)
Today, with the development of communication technologies, the rate of use of the internet and web tools has also increased. The most preferred of this web-based tools has been social media. Because of using a lot, social ...
Measurement of the form factors in the decay D+ ??e+?e and search for the decay D+ ??e+?e
(American Physical Society, 2015)
Using 2.92 fb-1 of electron-positron annihilation data collected at a center-of-mass energy of s=3.773 GeV with the BESIII detector, we present an improved measurement of the branching fraction B(D+??e+?e)=(1.63±0.11±0.08)×10-3. ...
Amplitude analysis of the ? 0 ? 0 system produced in radiative J=? decays
(American Physical Society, 2015)
An amplitude analysis of the ? 0 ? 0 system produced in radiative J=? decays is presented. In particular, a piecewise function that describes the dynamics of the ? 0 ? 0 system is determined as a function ofM? 0 ? 0 from ...
Ciro ve personel devir hızı ilişkisi
(2013)
İşletmelerde personel devir hızı ile ciro arasında bir bağlantı olup olmadığı birçok İnsan Kaynakları profesyoneli tarafından merak edilmektedir. Bunun temel sebebi de personel devir hızının performans ve ciroyu olumsuz ...
Yolcu Hizmetlerinde Çalışan Memnuniyeti: Havacılık İşletmelerinde Vardiyalı Çalışanlar Üzerine Bir Araştırma
(2017)
Çalışan Memnuniyeti kavramı örgütsel amaç ve hedeflere ulaşmak için tüm hizmet sektörlerinde olduğu gibi havacılık sektöründe de özel bir öneme sahiptir. Vardiyalı çalışmanın yürütüldüğü havacılık işletmelerinde de çalışan ...
Search for Z(c)(3900)(+/-) -> omega pi(+/-)
(American Physical Society, 2015)
The decay Zc(3900)±???± is searched for using data samples collected with the BESIII detector operating at the BEPCII storage ring at center-of-mass energies s=4.23 and 4.26 GeV. No significant signal for the Zc(3900)± is ...
Precision measurement of the integrated luminosity of the data taken by BESIII at center-of-mass energies between 3.810 GeV and 4.600 GeV
(Institute of Physics Publishing, 2015)
From December 2011 to May 2014, about 5 fb-1 of data were taken with the BESIII detector at center-of-mass energies between 3.810 GeV and 4.600 GeV to study the charmonium-like states and higher excited charmonium states. ...
Measurement of the e+e- ??J /? cross section and search for e+e- ??0J /? at center-of-mass energies between 3.810 and 4.600 GeV
(American Physical Society, 2015)
Using data samples collected with the BESIII detector operating at the BEPCII collider at 17 center-of-mass energies from 3.810 to 4.600 GeV, we perform a study of e+e-??J/? and ?0J/?. The Born cross sections of these two ...