Extracting the transverse momentum dependent polarizing fragmentation functions
Extracting the transverse momentum dependent polarizing fragmentation functions
复制标题
提取横向动量相关的偏振碎裂函数
DOI:
10.1103/physrevd.102.096007
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发表时间:
2020
影响因子:
5
通讯作者:
Terry, John
中科院分区:
文献类型:
--
作者:
Callos, Daniel;Kang, Zhong-Bo;Terry, John
We demonstrate that spontaneous transverse polarization of lambda baryon () production inannihilation can be described using the transverse momentum dependent polarizing fragmentation functions (TMD PFFs). Using a simple Gaussian model, we perform an extraction of the TMD PFFs by fitting the BELLE Collaboration’s recent measurement of thetransverse polarization in back-to-backproduction incollisions,. We find that this simple model accurately describes the experimental data forproduction associated with pions and kaons, and we are able to determine TMD PFFs for different quark flavors. We use these newly extracted TMD PFFs to make predictions for the transverse polarization ofproduced in semi-inclusive deep inelastic scattering at a future electron-ion collider and find that such a polarization is around 10% and should be measurable. Furthermore, the extracted TMD PFFs have been made available open source.
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DOI:
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期刊:
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