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Final-state interactions in semi-inclusive deep inelastic scattering off the deuteron

Wim Cosyn (UGent) and M Sargsian
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Abstract
Semi-inclusive deep inelastic scattering off the deuteron with production of a slow nucleon in recoil kinematics is studied in the virtual nucleon approximation, in which the final-state interaction (FSI) is calculated within generalized eikonal approximation. The cross section is derived in a factorized approach, with a factor describing the virtual photon interaction with the off-shell nucleon and a distorted spectral function accounting for the final-state interactions. One of the main goals of the study is to understand how much the general features of the diffractive high-energy soft rescattering accounts for the observed features of FSI in deep inelastic scattering (DIS). Comparison with the Jefferson Lab data shows good agreement in the covered range of kinematics. Most importantly, our calculation correctly reproduces the rise of the FSI in the forward direction of the slow nucleon production angle. By fitting our calculation to the data we extracted the W and Q(2) dependencies of the total cross section and slope factor of the interaction of DIS products, X, off the spectator nucleon. This analysis shows the XN-scattering cross section rising with W and decreasing with an increase of Q(2). Finally, our analysis points at a largely suppressed off-shell part of the rescattering amplitude.
Keywords
GLAUBER, GRAPHS, DIS, NEUTRON, COLOR TRANSPARENCY, NUCLEI

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Citation

Please use this url to cite or link to this publication:

Chicago
Cosyn, Wim, and M Sargsian. 2011. “Final-state Interactions in Semi-inclusive Deep Inelastic Scattering Off the Deuteron.” Physical Review C 84 (1).
APA
Cosyn, W., & Sargsian, M. (2011). Final-state interactions in semi-inclusive deep inelastic scattering off the deuteron. PHYSICAL REVIEW C, 84(1).
Vancouver
1.
Cosyn W, Sargsian M. Final-state interactions in semi-inclusive deep inelastic scattering off the deuteron. PHYSICAL REVIEW C. 2011;84(1).
MLA
Cosyn, Wim, and M Sargsian. “Final-state Interactions in Semi-inclusive Deep Inelastic Scattering Off the Deuteron.” PHYSICAL REVIEW C 84.1 (2011): n. pag. Print.
@article{1981683,
  abstract     = {Semi-inclusive deep inelastic scattering off the deuteron with production of a slow nucleon in recoil kinematics is studied in the virtual nucleon approximation, in which the final-state interaction (FSI) is calculated within generalized eikonal approximation. The cross section is derived in a factorized approach, with a factor describing the virtual photon interaction with the off-shell nucleon and a distorted spectral function accounting for the final-state interactions. One of the main goals of the study is to understand how much the general features of the diffractive high-energy soft rescattering accounts for the observed features of FSI in deep inelastic scattering (DIS). Comparison with the Jefferson Lab data shows good agreement in the covered range of kinematics. Most importantly, our calculation correctly reproduces the rise of the FSI in the forward direction of the slow nucleon production angle. By fitting our calculation to the data we extracted the W and Q(2) dependencies of the total cross section and slope factor of the interaction of DIS products, X, off the spectator nucleon. This analysis shows the XN-scattering cross section rising with W and decreasing with an increase of Q(2). Finally, our analysis points at a largely suppressed off-shell part of the rescattering amplitude.},
  articleno    = {014601},
  author       = {Cosyn, Wim and Sargsian, M},
  issn         = {0556-2813},
  journal      = {PHYSICAL REVIEW C},
  keyword      = {GLAUBER,GRAPHS,DIS,NEUTRON,COLOR TRANSPARENCY,NUCLEI},
  language     = {eng},
  number       = {1},
  pages        = {12},
  title        = {Final-state interactions in semi-inclusive deep inelastic scattering off the deuteron},
  url          = {http://dx.doi.org/10.1103/PhysRevC.84.014601},
  volume       = {84},
  year         = {2011},
}

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