Selective enhancement of different electron populations by electron-positron attraction: application to zinc

1987 ◽  
Vol 17 (6) ◽  
pp. 1365-1378 ◽  
Author(s):  
S Daniuk ◽  
G Kontrym-Sznajd ◽  
A Rubaszek ◽  
H Stachowiak ◽  
J Mayers ◽  
...  
Keyword(s):  
Electron Positron ◽  
Selective Enhancement

Selective enhancement of different electron populations by electron–positron attraction. Application to zinc

1984 ◽  
Vol 40 (a1) ◽  
pp. C176-C176
Author(s):  
S. Daniuk ◽  
G. Kontrym-Sznajd ◽  
A. Rubaszek ◽  
H. Stachowiak ◽  
J. Mayers ◽  
...  
Keyword(s):  
Electron Positron ◽  
Selective Enhancement

Major Upgrade of the Beijing Electron-Positron Collider

2009 ◽  
Vol 2009 (3) ◽  
pp. 275-281 ◽  
Author(s):  
Hesheng Chen ◽  
Chuang Zhang ◽  
Weiguo Li
Keyword(s):  
Electron Positron

scholarly journals Search for the rare semi-leptonic decay J/ψ → D−e+νe + c.c.

2021 ◽  
Vol 2021 (6) ◽  
Author(s):  
◽  
M. Ablikim ◽  
M. N. Achasov ◽  
P. Adlarson ◽  
S. Ahmed ◽  
...  
Keyword(s):  
Confidence Level ◽  
Branching Fraction ◽  
Center Of Mass ◽  
Leptonic Decay ◽  
Mass Energy ◽  
Center Of Mass Energy ◽  
Upper Limit ◽  
Electron Positron

Abstract Using 10.1 × 109J/ψ events produced by the Beijing Electron Positron Collider (BEPCII) at a center-of-mass energy $$ \sqrt{s} $$ s = 3.097 GeV and collected with the BESIII detector, we present a search for the rare semi-leptonic decay J/ψ → D−e+νe + c.c. No excess of signal above background is observed, and an upper limit on the branching fraction ℬ(J/ψ → D−e+νe + c. c.) < 7.1 × 10−8 is obtained at 90% confidence level. This is an improvement of more than two orders of magnitude over the previous best limit.

scholarly journals Selective Enhancement of Electrochemical Signal Based on the Size of Alcohols Using Nanoporous Platinum

2021 ◽  
Author(s):  
Jae Jin Bang ◽  
Donghoon Han ◽  
Jinsik Shin ◽  
Taek Dong Chung ◽  
Je Hyun Bae
Keyword(s):  
Electrochemical Signal ◽  
Selective Enhancement ◽  
Nanoporous Platinum
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