Unraveling light nuclei with deeply virtual Compton scattering processes: from models to event generation

Authors

  • Sara Fucini IJCLab
  • Raphaël Dupré

DOI:

https://doi.org/10.31349/SuplRevMexFis.3.0308114

Keywords:

Nuclear Compton scattering, nuclear structure, Monte Carlo event generator

Abstract

In this talk, we present the analysis of a deeply virtual Compton scattering process off 4 He. This study is done within the impulse approximation approach including state-of-the-art models for the nucleonic and nuclear ingredients. A glimpse on the comparison between our results and the experimental data coming form Jefferson Lab is also given. The last part of this work is devoted to the description of the new Monte Carlo event generator based on the models presented in the main part of the talk. First results from the simulations performed at the kinematic conditions foreseen at the Electron Ion Collider are discussed demonstrating that there is a wide enough kinematical range to reach the tomography of 4 He and understand other possible aspects of the elusive nuclear parton dynamics.

References

R. Abdul Khalek, A. Accardi, J. Adam, D. Adamiak, W. Akers, M. Albaladejo, A. Al-bataineh, M. G. Alexeev, F. Ameli and P. Antonioli, et al. Science Requirements and Detector Concepts for the Electron-Ion Collider: EIC Yellow Report, [arXiv:2103.05419[physics.ins-det]]

J. J. Aubert et al. [European Muon Collaboration], The ratio of the nucleon structure functions F 2 n for iron and deuterium, Phys. Lett. 123B 275 (1983), doi:10.1016/0370-2693(83)90437-9

A. W. Thomas, Reflections on the Origin of the EMC Effect, Int. J. Mod. Phys. E 27 (2019) no.12, 1840001, doi:10.1142/S0218301318400013

J. Seely, A. Daniel, D. Gaskell, J. Arrington, N. Fomin, P. Solvignon, R. Asaturyan, F. Benmokhtar, W. Boeglin and B. Boillat, et al. New measurements of the EMC effect in very light nuclei, Phys. Rev. Lett. 103 (2009), 202301, doi:10.1103/PhysRevLett.103.202301

R. Dupré and S. Scopetta, 3-D Structure and Nuclear Targets, Eur. Phys. J. A 52 no.6, 159 (2016), doi:10.1140/epja/i2016-16159-1

P. R. Norton, The EMC effect, Rept. Prog. Phys. 66 (2003), 1253-1297, doi:10.1088/0034-4885/66/8/201

M. Diehl, Generalized parton distributions, Phys. Rept. 388, 41 (2003), doi:10.1016/j.physrep.2003.08.002

S. Boffi and B. Pasquini, Generalized parton distributions and the structure of the nucleon, Riv. Nuovo Cim. 30 (2007) no.9, 387-448, doi:10.1393/ncr/i2007-10025-7

M. Guidal, H. Moutarde and M. Vanderhaeghen, Generalized Parton Distributions in the valence region from Deeply Virtual Compton Scattering, Rept. Prog. Phys. 76 (2013), 066022, doi:10.1088/0034-4885/76/6/066202 [arXiv:1303.6600 [hep-ph]].

M. Hattawy et al. [CLAS Collaboration], First Exclusive Measurement of Deeply Virtual Compton Scattering off 4 He: Toward the 3D Tomography of Nuclei, Phys. Rev. Lett. 119, no. 20, 202004 (2017), doi:10.1103/PhysRevLett.119.202004

M. Hattawy et al. [CLAS Collaboration], Exploring the Structure of the Bound Proton with Deeply Virtual Compton Scattering, Phys. Rev. Lett. 123, no. 3, 032502 (2019), doi:10.1103/PhysRevLett.123.032502

S. Liuti and S. K. Taneja, ‘Microscopic description of deeply virtual Compton scattering off spin-0 nuclei, Phys. Rev. C 72, 032201 (2005), doi:10.1103/PhysRevC.72.032201

S. Liuti and S. K. Taneja, Nuclear medium modifications of hadrons from generalized parton distributions, Phys. Rev. C 72, 034902 (2005), doi:10.1103/PhysRevC.72.034902

V. Guzey and M. Strikman, DVCS on spinless nuclear targets in impulse approximation, Phys. Rev. C 68, 015204 (2003), doi:10.1103/PhysRevC.68.015204

V. Guzey, A. W. Thomas and K. Tsushima, Medium modifications of the bound nucleon GPDs and incoherent DVCS on nuclear targets, Phys. Lett. B 673, 9 (2009), doi:10.1016/j.physletb.2009.01.064

E. R. Berger, F. Cano, M. Diehl and B. Pire, Generalized parton distributions in the deuteron, Phys. Rev. Lett. 87, 142302 (2001), doi:10.1103/PhysRevLett.87.142302

S. Scopetta, Generalized parton distributions of He-3, Phys. Rev. C 70, 015205 (2004), doi:10.1103/PhysRevC.70.015205

S. Scopetta, Conventional nuclear effects on generalized parton distributions of trinucleons, Phys. Rev. C 79, 025207 (2009), doi:10.1103/PhysRevC.79.025207

M. Rinaldi and S. Scopetta, Neutron orbital structure from generalized parton distributions of 3He, Phys. Rev. C 85, 062201 (2012), doi:10.1103/PhysRevC.85.062201

S. Fucini, S. Scopetta and M. Viviani, Coherent deeply virtual Compton scattering off 4 He, Phys. Rev. C 98, no. 1, 015203 (2018), doi:10.1103/PhysRevC.98.015203

S. Fucini, M. Rinaldi and S. Scopetta, Generalized parton distributions of light nuclei, Few Body Syst. 62 (2021) no.1, 3 doi:10.1007/s00601-020-01590-0

M. Viviani, A. Kievsky and A. Rinat, GRS computation of deep inelastic electron scattering on He-4, Phys. Rev. C 67, 034003 (2003), doi:10.1103/PhysRevC.67.034003

R. B. Wiringa, V. G. J. Stoks and R. Schiavilla, An Accurate nucleon-nucleon potential with charge independence breaking, Phys. Rev. C 51, 38 (1995), doi:10.1103/PhysRevC.51.38

B. S. Pudliner, V. R. Pandharipande, J. Carlson and R. B. Wiringa, Quantum Monte Carlo calculations of A ≤ 6 nuclei Phys. Rev. Lett. 74, 4396 (1995), doi:10.1103/PhysRevLett.74.4396

M. Viviani, A. Kievsky and S. Rosati, Calculation of the alpha-particle ground state within the hyperspherical harmonic basis, Phys. Rev. C 71, 024006 (2005), doi:10.1103/PhysRevC.71.024006

S. V. Goloskokov and P. Kroll, Transversity in hard exclusive electroproduction of pseudoscalar mesons, Eur. Phys. J. A 47, 112 (2011), doi:10.1140/epja/i2011-11112-6

A. V. Belitsky and D. Mueller, Refined analysis of photon leptoproduction off spinless target, Phys. Rev. D 79, 014017 (2009), doi:10.1103/PhysRevD.79.014017

S. Fucini, S. Scopetta and M. Viviani, Catching a glimpse of the parton structure of the bound proton, Phys. Rev. D 101 (2020) no.7, 071501 doi:10.1103/PhysRevD.101.071501,

S. Fucini, S. Scopetta and M. Viviani, Incoherent deeply virtual Compton scattering off 4 He, Phys. Rev. C 102 (2020), 065205, doi:10.1103/PhysRevC.102.065205 [arXiv:2008.11437 [nucl-th]].

A. V. Belitsky, D. Mueller and A. Kirchner, Theory of deeply virtual Compton scattering on the nucleon, Nucl. Phys. B 629, 323 (2002), doi:10.1016/S0550-3213(02)00144-X

C. Ciofi degli Atti and S. Simula, Realistic model of the nucleon spectral function in few and many nucleon systems, Phys. Rev. C 53, 1689 (1996), doi:10.1103/PhysRevC.53.1689

Armstrong W et al., Partonic Structure of Light Nuclei, http://arxiv.org/abs/1708.00888

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Published

2022-06-17

How to Cite

1.
Fucini S, Dupré R. Unraveling light nuclei with deeply virtual Compton scattering processes: from models to event generation. Supl. Rev. Mex. Fis. [Internet]. 2022 Jun. 17 [cited 2024 Dec. 21];3(3):0308114 1-6. Available from: https://rmf.smf.mx/ojs/index.php/rmf-s/article/view/6344