Current non-conservation effects in $\nu$DIS diffraction

TL;DR

This paper investigates how charged current non-conservation in neutrino deep inelastic scattering diffraction significantly affects the longitudinal structure function, especially at small-x, leading to increased charm and strangeness production.

Contribution

It reveals the impact of non-conservation effects on $F_L$ and highlights the enhancement of higher twist corrections at small-x in neutrino DIS diffraction.

Findings

Non-conservation causes sizable corrections to $F_L$.

Enhanced charm and strangeness production by longitudinal W bosons.

Higher twist effects are significant at small-x.

Abstract

In the neutrino DIS diffraction the charged current non-conservation gives rise to sizable corrections to the longitudinal structure function, $F_L$. These corrections is a higher twist effect enhanced at small-$x$ by the rapidly growing gluon density. The phenomenon manifests itself in abundant production of charm and strangeness by longitudinally polarized W bosons of moderate virtualities $Q^2\lsim m_c^2$.