18-22 October 2021
Matsue, Shimane Prefecture, Japan
Asia/Tokyo timezone

Time-reversal Odd Side of a Jet

21 Oct 2021, 08:12
Room 601 (Kunibiki Messe)

Room 601

Kunibiki Messe

Parallel Session Presentation Transverse momentum structure (TMD) Joint TMD - GPD - HELCITY - Future session US timezone


Wai Kin Lai (South China Normal University)


We re-examine the jet probes of the nucleon spin and flavor structures. We find for the first time
that the time-reversal odd (T-odd) component of a jet, conventionally thought to vanish, can survive
due to the nonperturbative fragmentation and hadronization effects. This additional contribution
of a jet will lead to novel jet phenomena relevant for unlocking the access to several spin structures
of the nucleon, which were thought to be impossible by using jets. As examples, we show how the
T-odd constituent can couple to the proton transversity at the Electron Ion Collider (EIC) and
can give rise to the anisotropy in the jet production in e+ e− annihilations. We expect the T-odd
contribution of the jet to have broad applications in high energy nuclear physics.

Primary authors

Wai Kin Lai (South China Normal University) Prof. Hongxi Xing (SCNU) Xiaohui Liu (Beijing Normal University) Manman Wang (Beijing Normal University)

Presentation Materials

There are no materials yet.