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Cross Sections for the Exclusive Photon Electroproduction on the Proton and Generalized Parton Distributions
- Source :
- Physical Review Letters, Physical Review Letters, American Physical Society, 2015, 115 (21), pp.212003. ⟨10.1103/PhysRevLett.115.212003⟩, Jo, H S, Girod, F X, Avakian, H, Burkert, V D, Garcon, M, Guidal, M, Kubarovsky, V, Niccolai, S, Stoler, P, Adhikari, K P, Adikaram, D, Amaryan, M J, Anderson, M D, Pereira, S A, Ball, J, Baltzell, N A, Battaglieri, M, Batourine, V, Bedlinskiy, I, Biselli, A S, Boiarinov, S, Briscoe, W J, Brooks, W K, Carman, D S, Celentano, A, Chandavar, S, Charles, G, Colaneri, L, Cole, P L, Compton, N, Contalbrigo, M, Crede, V, D'Angelo, A, Dashyan, N, De Vita, R, De Sanctis, E, Deur, A, Djalali, C, Dupre, R, El Alaoui, A, El Fassi, L, Elouadrhiri, L, Fedotov, G, Fegan, S, Filippi, A, Hughes, S M, Sokhan, D, Watts, D P & Zachariou, N & Zana, L 2015, ' Cross Sections for the Exclusive Photon Electroproduction on the Proton and Generalized Parton Distributions ', Physical Review Letters, vol. 115, no. 21, 212003 . https://doi.org/10.1103/PhysRevLett.115.212003, https://doi.org/10.1103/PhysRevLett.115.212003, Physical Review Letters, 2015, 115 (21), pp.212003. ⟨10.1103/PhysRevLett.115.212003⟩
- Publication Year :
- 2015
- Publisher :
- HAL CCSD, 2015.
-
Abstract
- Unpolarized and beam-polarized four-fold cross sections $\frac{d^4 \sigma}{dQ^2 dx_B dt d\phi}$ for the $ep\to e^\prime p^\prime \gamma$ reaction were measured using the CLAS detector and the 5.75-GeV polarized electron beam of the Jefferson Lab accelerator, for 110 ($Q^2,x_B,t$) bins over the widest phase space ever explored in the valence-quark region. Several models of Generalized Parton Distributions (GPDs) describe the data well at most of our kinematics. This increases our confidence that we understand the GPD $H$, expected to be the dominant contributor to these observables. Through a leading-twist extraction of Compton Form Factors, these results reveal a tomographic image of the nucleon.<br />Comment: 7 pages, 5 figures
- Subjects :
- Particle physics
Photon
Proton
HERA
General Physics and Astronomy
Socio-culturale
FOS: Physical sciences
Parton
[PHYS.NEXP]Physics [physics]/Nuclear Experiment [nucl-ex]
High Energy Physics - Experiment
Settore FIS/04 - Fisica Nucleare e Subnucleare
Nuclear physics
High Energy Physics - Experiment (hep-ex)
CLAS
virtual compton scattering
Twist
Nuclear Experiment (nucl-ex)
VIRTUAL COMPTON-SCATTERING
NUCLEON
Nuclear Experiment
Quantum chromodynamics
Physics
3. Good health
Phase space
virtual compton scattering, nucleon
High Energy Physics::Experiment
Nucleon
Subjects
Details
- Language :
- English
- ISSN :
- 00319007 and 10797114
- Database :
- OpenAIRE
- Journal :
- Physical Review Letters, Physical Review Letters, American Physical Society, 2015, 115 (21), pp.212003. ⟨10.1103/PhysRevLett.115.212003⟩, Jo, H S, Girod, F X, Avakian, H, Burkert, V D, Garcon, M, Guidal, M, Kubarovsky, V, Niccolai, S, Stoler, P, Adhikari, K P, Adikaram, D, Amaryan, M J, Anderson, M D, Pereira, S A, Ball, J, Baltzell, N A, Battaglieri, M, Batourine, V, Bedlinskiy, I, Biselli, A S, Boiarinov, S, Briscoe, W J, Brooks, W K, Carman, D S, Celentano, A, Chandavar, S, Charles, G, Colaneri, L, Cole, P L, Compton, N, Contalbrigo, M, Crede, V, D'Angelo, A, Dashyan, N, De Vita, R, De Sanctis, E, Deur, A, Djalali, C, Dupre, R, El Alaoui, A, El Fassi, L, Elouadrhiri, L, Fedotov, G, Fegan, S, Filippi, A, Hughes, S M, Sokhan, D, Watts, D P & Zachariou, N & Zana, L 2015, ' Cross Sections for the Exclusive Photon Electroproduction on the Proton and Generalized Parton Distributions ', Physical Review Letters, vol. 115, no. 21, 212003 . https://doi.org/10.1103/PhysRevLett.115.212003, https://doi.org/10.1103/PhysRevLett.115.212003, Physical Review Letters, 2015, 115 (21), pp.212003. ⟨10.1103/PhysRevLett.115.212003⟩
- Accession number :
- edsair.doi.dedup.....7128a25f91516a113259455461eb71a1