Higher vector meson states produced in electron-positron annihilation

1994 ◽  
Vol 62 (3) ◽  
pp. 455-469 ◽  
Author(s):  
A. B. Clegg ◽  
A. Donnachie
Keyword(s):  
Vector Meson ◽  
Positron Annihilation ◽  
Electron Positron Annihilation ◽  
Electron Positron ◽  
Meson States

Vector meson production in electron positron annihilation process

2021 ◽  
pp. 2150120
Author(s):  
Weihua Yang ◽  
Fei Huang
Keyword(s):  
Differential Cross Section ◽  
Vector Meson ◽  
Positron Annihilation ◽  
Cross Section ◽  
Differential Cross ◽  
High Energy ◽  
Annihilation Process ◽  
Electron Positron Annihilation ◽  
Electron Positron ◽  
Fragmentation Functions

When tunneling events induced by nontrivial configurations of the quantum chromodynamics gauge fields are taken into consideration, parity violating quantities emerge. Based on this consideration, parity-odd fragmentation functions can be introduced in the high energy reactions. In this paper, we calculate the differential cross-section in terms of both the parity-even and parity-odd fragmentation functions in semi-inclusive electron positron annihilation process. Semi-inclusive implies that not only a vector meson in one jet but also the back-to-back jet is measured in this reaction. According to the differential cross-section, we further calculate the azimuthal asymmetries and hadron polarizations in terms of fragmentation functions. A method of measuring the parity violating effects in the semi-inclusive annihilation process is suggested.

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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