Speaker
Cheuk-Yin Wong
(Oak Ridge National Laboratory)
Description
In a pp collision, the production of quark-antiquark pairs along a
color flux tube
precedes the fragmentation of the tube. Because of
local conservation laws, the production of a strange quark-antiquark
pair will
lead to the correlation of adjacently produced
hadrons. Adjacently
produced hadrons can be signalled by their
rapidity difference
falling within the window of $|\Delta y |<
1/(dN/dy)$, on account of the space-time-rapidity ordering of
produced
hadrons in a flux-tube fragmentation. Therefore, for two
strange hadrons with opposite strangeness
, the local
conservation
laws of momentum and strangeness will lead to a
suppression of the
angular correlation function $dN/(d\Delta \phi
d\Delta y)$ at
$(\Delta \phi, \Delta y) \sim 0$ on the near side, but an enhanced
correlation at $\Delta \phi \sim \pi$ on
the back-to-back, away side,
within the
window of $|\Delta y | < 1/(dN/dy)$. These properties can
be used as signatures for the fragmentation of a color flux tube in a
pp collision [1].
[1] C. Y. Wong, Phys. Rev. D92, 074007 (2015).
| On behalf of collaboration: | None |
|---|
Author
Cheuk-Yin Wong
(Oak Ridge National Laboratory)
