scholarly journals Radiative return at NLO and the measurement of the hadronic cross-section in electron–positron annihilation

2002 ◽  
Vol 24 (1) ◽  
pp. 71-82 ◽  
Author(s):  
G. Rodrigo ◽  
H. Czyż ◽  
J.H. Kühn ◽  
M. Szopa
Keyword(s):  
Positron Annihilation ◽  
Cross Section ◽  
Hadronic Cross Section ◽  
Electron Positron Annihilation ◽  
Electron Positron ◽  
Radiative Return

The hadronic cross section of electron-positron annihilation at 9.5 GeV and the ϒ and ϒ′ resonance parameters

1982 ◽  
Vol 116 (5) ◽  
pp. 383-386 ◽  
Author(s):  
H. Albrecht ◽  
R. Childers ◽  
C.W. Darden ◽  
G. Drews ◽  
H. Hasemann ◽  
...  
Keyword(s):  
Positron Annihilation ◽  
Cross Section ◽  
Resonance Parameters ◽  
Hadronic Cross Section ◽  
Electron Positron Annihilation ◽  
Electron Positron

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.

Electron-Positron Annihilation Cross Section inSU(2)L⊗U(1)Supergravity

1983 ◽  
Vol 51 (19) ◽  
pp. 1813-1813 ◽  
Author(s):  
Duane A. Dicus ◽  
S. Nandi ◽  
W. W. Repko ◽  
Xerxes Tata
Keyword(s):  
Positron Annihilation ◽  
Cross Section ◽  
Annihilation Cross Section ◽  
Electron Positron Annihilation ◽  
Electron Positron
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