scholarly journals Instanton induced transverse single spin asymmetry for π0 production in pp scattering

2021 ◽  
Vol 103 (3) ◽  
Author(s):  
Nikolai Korchagin ◽  
Nikolai Kochelev ◽  
Pengming Zhang
Keyword(s):  
Spin Asymmetry ◽  
Single Spin Asymmetry ◽  
Single Spin

scholarly journals Measurement of the beam-normal single-spin asymmetry for elastic electron scattering from C12 and Al27

2021 ◽  
Vol 104 (1) ◽  
Author(s):  
D. Androić ◽  
D. S. Armstrong ◽  
A. Asaturyan ◽  
K. Bartlett ◽  
R. S. Beminiwattha ◽  
...  
Keyword(s):  
Electron Scattering ◽  
Spin Asymmetry ◽  
Single Spin Asymmetry ◽  
Elastic Electron ◽  
Elastic Electron Scattering ◽  
Single Spin

scholarly journals Transverse target single-spin asymmetry in inclusive electroproduction of charged pions and kaons

2014 ◽  
Vol 728 ◽  
pp. 183-190 ◽  
Author(s):  
A. Airapetian ◽  
N. Akopov ◽  
Z. Akopov ◽  
E.C. Aschenauer ◽  
W. Augustyniak ◽  
...  
Keyword(s):  
Spin Asymmetry ◽  
Single Spin Asymmetry ◽  
Single Spin ◽  
Charged Pions

scholarly journals Single-spin asymmetry ATsin(2ϕ−ϕS) in π−p Drell-Yan process within TMD factorization

2022 ◽  
Vol 258 ◽  
pp. 03002
Author(s):  
Hui Li ◽  
Xiaoyu Wang ◽  
Zhun Lu
Keyword(s):  
Spin Asymmetry ◽  
Distribution Functions ◽  
Single Spin Asymmetry ◽  
Parton Distribution Functions ◽  
Sudakov Form Factor ◽  
Transverse Momentum Dependent ◽  
Single Spin ◽  
Mulders Function ◽  
Light Cone Wave Function ◽  
The Asymmetry

We study the single-spin asymmetry ATsin(2ϕ−ϕS) in the pion-induced Drell-Yan process within the transverse momentum dependent factorization (TMD factorization). The asymmetry can be expressed as the convolution of the Boer-Mulders function and the transversity function. We numerically estimate the asymmetry ATsin(2ϕ−ϕS) at the COMPASS kinematics with the model results for the pion meson distributions from the light-cone wave function approach and the available parametrization for the proton distributions. We also include the TMD evolution formalism both proton and pion parton distribution functions by using two different parametrizations on nonperturbative Sudakov form factor. We find that the asymmetry ATsin(2ϕ−ϕS) as functions of xp, xπ, xF and q⊥ is qualitatively consistent with the recent COMPASS measurement.

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