scholarly journals Novel structure function for photon fragmentation into a Λ hyperon and transverse Λ polarization in unpolarized electron-positron annihilation

1995 ◽  
Vol 51 (9) ◽  
pp. 5305-5308 ◽  
Author(s):  
Wei Lu
Keyword(s):  
Structure Function ◽  
Positron Annihilation ◽  
Electron Positron Annihilation ◽  
Novel Structure ◽  
Electron Positron ◽  
Unpolarized Electron ◽  
Photon Fragmentation

Spin-Dependent Structure Function ĝ1+ĝ2 for e++e-→B+X (Revisited)

1997 ◽  
Vol 12 (07) ◽  
pp. 489-491
Author(s):  
Hong Chen
Keyword(s):  
Structure Function ◽  
Positron Annihilation ◽  
Fragmentation Function ◽  
Quark Mass ◽  
Structure Functions ◽  
Transverse Spin ◽  
Qcd Factorization ◽  
Electron Positron Annihilation ◽  
Electron Positron

The QCD factorization expression has been revisited to the sum of two spin-dependent structure functions ĝ1 and ĝ2 for e++e-→B+X. We find that there exist some spurious quark-mass contributions in an expression derived earlier by Lu, Li and Hu. Their removal guarantees that the measurements of ĝ1 and ĝ2 indeed construct a determination of twist-three transverse spin-dependent fragmentation function, ĝT, in the case of inclusive Λ production in electron–positron annihilation.

scholarly journals Calculation of the Doppler broadening of the electron-positron annihilation radiation in defect-free bulk materials

2000 ◽  
Vol 61 (15) ◽  
pp. 10092-10099 ◽  
Author(s):  
V. J. Ghosh ◽  
M. Alatalo ◽  
P. Asoka-Kumar ◽  
B. Nielsen ◽  
K. G. Lynn ◽  
...  
Keyword(s):  
Positron Annihilation ◽  
Annihilation Radiation ◽  
Doppler Broadening ◽  
Bulk Materials ◽  
Electron Positron Annihilation ◽  
Electron Positron

Experimental study of jets in electron-positron annihilation

1981 ◽  
Vol 101 (1-2) ◽  
pp. 129-134 ◽  
Author(s):  
W. Bartel ◽  
D. Cords ◽  
P. Dittmann ◽  
R. Eichler ◽  
R. Felst ◽  
...  
Keyword(s):  
Experimental Study ◽  
Positron Annihilation ◽  
Electron Positron Annihilation ◽  
Electron Positron
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