Spin polarization independence of hard polarized fermion string scattering amplitudes

Sheng Hong Lai, Jen-Chi Lee, Yi Yang*

*Corresponding author for this work

Research output: Contribution to journalArticle

Abstract

We calculate a class of polarized fermion string scattering amplitudes (PFSSA) at arbitrary mass levels. We discover that, in the hard scattering limit, the functional forms of the non-vanishing PFSSA at each fixed mass level are independent of the choices of spin polarizations. This result agrees with Gross conjecture on high energy string scattering amplitudes extended to the fermionic sector. In addition, this peculiar property of hard PFSSA is to be compared with the usual spin polarization dependence of the hard polarized fermion field theory scatterings.

Original languageEnglish
Article number134812
JournalPhysics Letters, Section B: Nuclear, Elementary Particle and High-Energy Physics
Volume797
DOIs
StatePublished - 10 Oct 2019

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