3–7 Feb 2020
CERN
Europe/Zurich timezone
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The origin of single transverse-spin asymmetries in high-energy collisions

3 Feb 2020, 11:45
25m
774/R-013 (CERN)

774/R-013

CERN

104
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Speaker

Alexey Prokudin

Description

We present, for the first time, a phenomenological
analysis that demonstrates all single transverse-spin asymmetries (SSAs) in
high-energy collisions have a common origin.
Namely, they are due to the intrinsic quantum-mechanical interference
between single- and multi-parton states.
We perform the first global fit of data from Semi-Inclusive Deep
Inelastic Scattering, Drell-Yan, $e^+e^-$ annihilation into hadron
pairs, and proton-proton collisions.
Consequently, we are able to identify a unique set of
functions that describes all observed SSAs.
Furthermore, we achieve the first phenomenological agreement with
lattice on the tensor charge of the nucleon.

Authors

Justin Cammarota (Department of Physics, William \& Mary, Williamsburg, Virginia 23187, USA) Prof. Leonard Gamberg (Penn State University Berks) Prof. Zhongbo Kang (UCLA) Joshua Miller (Department of Physics, Lebanon Valley College, Annville, Pennsylvania 17003, USA) Daniel Pitonyak (T) Alexey Prokudin nobuo sato (jlab)

Presentation materials