|
| | | | |
| | | |
| Stat |
Members: 3645
Articles: 2'501'711
Articles rated: 2609
20 April 2024 |
|
| | | | |
|
Article overview
| |
|
|
Photoproduction of charged final states in ultra-peripheral collisions and electroproduction at an electron-ion collider | | Spencer. R. Klein
; Ya-Ping Xie
; | | Date: |
7 Mar 2019 | | Abstract: | Ultra-peripheral collisions (UPCs) of relativistic ions are an important tool
for studying photoproduction at high energies. Vector meson photoproduction is
an important tool for nuclear structure measurements and other applications. A
future electron-ion collider (EIC) will allow additional studies, using virtual
photons with a wide range of $Q^2$. We propose a significant expansion of the
UPC and EIC photoproduction physics programs to include charged final states
which may be produced via Reggeon exchange. We consider two examples:
$a_2^+(1320)$, which is a conventional $qoverline q$ meson, and the exotic
$Z_c^+(4430)$ state (modeled here as a tetraquark). The $Z_c^+(4430)$
cross-section depends on its internal structure, so photoproduction can test
whether the $Z_c^+(4430)$ is a tetraquark or other exotic object. We calculate
the rates and kinematic distributions for $gamma p
ightarrow X^+n$ in $pA$
UPCs and $ep$ collisions at an EIC and in UPCs. The rates are large enough for
detailed studies of these final states. Because the cross-section for Reggeon
exchange is largest near threshold, the final state rapidity distribution
depends on the beam energies. At high-energy colliders like the proposed LHeC
or $pA$ collisions at the LHC, the final states are produced at far forward
rapidities. For lower energy colliders, the systems are produced closer to
mid-rapidity, within reach of central detectors. | | Source: | arXiv, 1903.2680 | | Services: | Forum | Review | PDF | Favorites | |
|
|
No review found.
Did you like this article?
Note: answers to reviews or questions about the article must be posted in the forum section.
Authors are not allowed to review their own article. They can use the forum section.
browser Mozilla/5.0 AppleWebKit/537.36 (KHTML, like Gecko; compatible; ClaudeBot/1.0; +claudebot@anthropic.com)
|
| |
|
|
|
|
News, job offers and information for researchers and scientists:
| |
REGISTER