scholarly journals Comparison of small-angle pp̄ and pp elastic scattering at 52.8 GeV center-of-mass energy at the CERN intersecting storage rings

1983 ◽  
Vol 120 (4-6) ◽  
pp. 460-464 ◽  
Author(s):  
N. Amos ◽  
M.M. Block ◽  
G.J. Bobbink ◽  
M. Botje ◽  
J. Debaisieux ◽  
...  
Keyword(s):  
Elastic Scattering ◽  
Small Angle ◽  
Center Of Mass ◽  
Storage Rings ◽  
Mass Energy ◽  
Center Of Mass Energy

Electron-Positron Elastic Scattering at a Center-of-Mass Energy of 4 GeV

1973 ◽  
Vol 30 (11) ◽  
pp. 507-510 ◽  
Author(s):  
R. Madaras ◽  
R. Averill ◽  
G. Hanson ◽  
A. Hofmann ◽  
J. Koch ◽  
...  
Keyword(s):  
Elastic Scattering ◽  
Center Of Mass ◽  
Mass Energy ◽  
Center Of Mass Energy ◽  
Electron Positron

Differential cross-section for 3He4He elastic scattering at 44.5 MeV center-of-mass energy

1971 ◽  
Vol 34 (3) ◽  
pp. 171-173 ◽  
Author(s):  
W. Fetscher ◽  
K. Sattler ◽  
N.C. Schmeing ◽  
E. Seibt ◽  
Ch. Weddigen ◽  
...  
Keyword(s):  
Elastic Scattering ◽  
Differential Cross Section ◽  
Cross Section ◽  
Differential Cross ◽  
Center Of Mass ◽  
Mass Energy ◽  
Center Of Mass Energy

Electron-Positron Elastic Scattering at 5 GeV Center-of-Mass Energy

1974 ◽  
Vol 32 (9) ◽  
pp. 483-485 ◽  
Author(s):  
H. Newman ◽  
R. Averill ◽  
J. Eshelman ◽  
L. Law ◽  
M. E. Law ◽  
...  
Keyword(s):  
Elastic Scattering ◽  
Center Of Mass ◽  
Mass Energy ◽  
Center Of Mass Energy ◽  
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.

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