Ara
Toplam kayıt 333, listelenen: 221-230
Measurement of Proton Electromagnetic form Factors in the Time-like Region Using Initial State Radiation at BESIII
(Elsevier, 2021)
The electromagnetic process e(+)e(-) -> p (p) over bar over bar is studied with the initial-state-radiation technique using 7.5 fb(-1) of data collected by the BESIII experiment at seven energy points from 3.773 to 4.600 ...
Measurements of Absolute Branching Fractions of D-0 -> K-L(0)phi, K-L(0)eta, K-L(0)omega, and K-L(0)eta '
(Amer Physical Soc., 2022)
We report the first measurements of the absolute branching fractions of D-0 -> K-L(0)phi, D-0 -> K-L(0)eta, D-0 -> K-L(0)omega, and D-0 -> K-L(0)eta', by analyzing 2.93 fb(-1) of e(+) e(-) collision data taken at a ...
Observation of The Decay D0 →ρ-μ+νμ
(American Physical Society, 2021)
By analyzing an e+e- annihilation data sample corresponding to an integrated luminosity of 2.93 fb-1 collected at a center-of-mass energy of 3.773 GeV with the BESIII detector, we measure the branching fraction of the ...
Measurement of singly Cabibbo-suppressed decays D -> omega pi pi
(Amer Physical Soc., 2020)
Using 2.93 fb(-1) of e(+) e(-) collision data taken at a center-of-mass energy of 3.773 GeV by the BESIII detector at the BEPCII, we measure the branching fractions of the singly Cabibbo-suppressed decays D -> omega pi pi ...
Measurement of The Absolute Branching Fractions of J/ψ →γη and η Decay Mode
(American Physical Society, 2021)
Based on a data sample of (1.0087±0.0044)×1010 J/ψ events collected by the BESIII detector at the BEPCII accelerator, the absolute branching fraction (BF) of the decay J/ψ→γη is measured with high precision using events ...
Numerical investigation for convective heat transfer and friction factor under pulsating flow conditions
(EDP Sciences, 2018)
For pulsating flow, the behaviours of the convective heat transfer and friction factor for a periodic corrugated channel are investigated numerically. The finite volume method is used in the numerical study. Three different ...
Search for a massless dark photon in Λc+ →pγ′ decay
(American Physical Society, 2022)
A search for a massless dark photon γ′ is conducted using 4.5 fb-1 of e+e- collision data collected at center-of-mass energies between 4.600 and 4.699 GeV with the BESIII detector at BEPCII. No significant signal is observed, ...
Cross section measurement of e(+)e(-) -> pi(+) pi(-) psi (3686) from root s=4.0076 GeV to 4.6984 GeV
(American Physical Society, 2021)
The first amplitude analysis of the decay Ds+→K-K+π+π0 is presented using the data samples, corresponding to an integrated luminosity of 6.32 fb-1, collected with the BESIII detector at e+e- center-of-mass energies between ...
Measurement of branching fractions of psi(3686) -> phi eta ', phi f(1) (1285) and phi eta(1405)
(AMER PHYSICAL SOC, 2019)
Using a sample of 448.1 x 10(6) psi(3686) events collected with the BESIII detector, we perform a study of the decay psi(3686) -> phi pi(+)pi(-)eta. The branching fraction of psi(3686) -> phi eta' is determined to be (1.51 ...
The implementation of the high technology methods of cutting on st 50 alloyed steel and the examination of the effects of cutting operation at the surface of material
(2014)
Since competition has risen in the manufacturing methods of present conditions, the chance of competition has lost in the situations which new or high technologies aren't exactly known. The proper selection is important ...