Bibliographic Details
| Title: |
Partonic Structure of Light Nuclei |
| Authors: |
Armstrong, Whitney, Arrington, John, Cloet, Ian, Hafidi, Kawtar, Hattawy, Mohammad, Potteveld, David, Reimer, Paul, Riordan, Seamus, Yi, Z., Ball, Jacques, Defurne, Maxime, Garcon, Michel, Moutarde, Herve, Procureur, Sebastien, Sabatie, Franck, Cosyn, Wim, Mazouz, Malek, Bettane, Julien, Charles, Gabriel, Dupre, Raphael, Guidal, Michel, Marchand, Dominique, Munoz, Carlos, Niccolai, Silvia, Voutier, Eric, Adhikari, Krishna, Dunne, James, Dutta, Dipangkar, Fassi, Lamiaa El, Ye, Li, Guzey, Vadim, Baltzell, Nathan, Girod, Francois-Xavier, Stepanyan, Stepan, Duran, Burcu, Joosten, Sylvester, Meziani, Zein-Eddine, Paolone, Michael, Rehfuss, Melanie, Sparveris, Nikos, Cao, F., Joo, Kyungseon, Kim, Andrei, Markov, N., Scopetta, Sergio, Brooks, William, El-Alaoui, Ahmed, Liuti, Simonetta |
| Publication Year: |
2017 |
| Collection: |
Nuclear Experiment |
| Subject Terms: |
Nuclear Experiment |
| More Details: |
We propose to study the partonic structure of $^4$He by measuring the Beam Spin Asymmetry (BSA) in coherent Deeply Virtual Compton Scattering (DVCS) and the differential cross-section of the Deeply Virtual Meson Production (DVMP) of the $\phi$. Despite its simple structure, a light nucleus such as $^4$He has a density and a binding energy comparable to that of heavier nuclei. Therefore, by studying $^4$He nucleus, one can learn typical features of the partonic structure of atomic nuclei. The combination of CLAS12 and the ALERT detector provides a unique opportunity to study both the quark and gluon structure of a dense light nucleus. Coherent exclusive DVCS off $^4$He will probe the transverse spatial distribution of quarks in the nucleus as a function of the quarks' longitudinal momentum fraction, $x$. In parallel, the average spatial transverse gluon density of the $^4$He nucleus will be extracted within a GPD framework using the measured longitudinal cross-section for coherent $\phi$ production in a similar range of $x$. Additionally, threshold effects of $\phi$ production can be explored by exploiting the ALERT detector's large acceptance for low $|t|$ events. |
| Document Type: |
Working Paper |
| Access URL: |
http://arxiv.org/abs/1708.00888 |
| Accession Number: |
edsarx.1708.00888 |
| Database: |
arXiv |
