| Issue |
EPJ Web Conf.
Volume 129, 2016
QCD@Work 2016 - International Workshop on Quantum Chromodynamics - Theory and Experiment
|
|
|---|---|---|
| Article Number | 00042 | |
| Number of page(s) | 6 | |
| DOI | https://doi.org/10.1051/epjconf/201612900042 | |
| Published online | 25 November 2016 | |
https://doi.org/10.1051/epjconf/201612900042
Hadronic structure of the photon at small x in holographic QCD
1 Department of Physics and Center for High Energy Physics, Chung-Yuan Christian University, Chung-Li 32023, Taiwan, Republic of China
2 Institute of Physics, Academia Sinica, Taipei 11529, Taiwan, Republic of China
* e-mail: watanabe@cycu.edu.tw
** e-mail: hnli@phys.sinica.edu.tw
Published online: 25 November 2016
We present our analysis on the photon structure functions at small Bjorken variable x in the framework of the holographic QCD. In the kinematic region, a photon can fluctuate into vector mesons and behaves like a hadron rather than a pointlike particle. Assuming the Pomeron exchange dominance, the dominant hadronic contribution to the structure functions is computed by convoluting the probe and target photon density distributions obtained from the wave functions of the U(1) vector field in the five-dimensional AdS space and the Brower-Polchinski-Strassler-Tan Pomeron exchange kernel. Our calculations are in agreement with both the experimental data from OPAL collaboration at LEP and those calculated from the parton distribution functions of the photon proposed by Glück, Reya, and Schienbein. The predictions presented here will be tested at future linear colliders, such as the planned International Linear Collider.
© The Authors, published by EDP Sciences, 2016
This is an Open Access article distributed under the terms of the Creative Commons Attribution License 4.0, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.
Current usage metrics show cumulative count of Article Views (full-text article views including HTML views, PDF and ePub downloads, according to the available data) and Abstracts Views on Vision4Press platform.
Data correspond to usage on the plateform after 2015. The current usage metrics is available 48-96 hours after online publication and is updated daily on week days.
Initial download of the metrics may take a while.