Advances in High Energy Physics / 2015 / Article / Tab 1

Research Article

A Gas Target Internal to the LHC for the Study of pp Single-Spin Asymmetries and Heavy Ion Collisions

Table 1

Comparison of gas targets in storage rings with a hypothetical target for the proposed AFTER@LHC initiative [1, 2].The target gas 1H, 2D, or 3He is assumed to be spin polarized.

Storage ringParticle
GeV
Target type
m

K

1/cm2 s
RemarksReference

HERA-e
DESY
(term. 2007)
e±  pol.27.6Cell 
1H, 2D, 3He
0.4100
25

HERMES exp.
1995–2007
[9]

RHIC-p
BNL
p pol.250JetAbsolute p polarimeter[10]

COSY 
FZ Jülich
p, d pol.3.77 
= 49.3 MeV
Cell  1H, 2D 
Cell 1H
0.43001029
ANKE exp.
PAX exp.
[4, 5] 
[11]

LHC
CERN
(proposed)
p unpol.
heavy ions
7,000 
Cell 
1H, 2D
Xe 
1.0100
≥100
1033
1027–1028
Based on techn. of HERMES targetthis paper