Hard photodisintegration of a proton pair in 3He

S. J. Brodsky, L. Frankfurt, R. Gilman, J. R. Hiller, G. A. Miller, E. Piasetzky, M. Sargsian, M. Strikman

Research output: Contribution to journalArticle

22 Citations (Scopus)

Abstract

Hard photodisintegration of the deuteron has been extensively studied in order to understand the dynamics of the transition from hadronic to quark-gluon descriptions of the strong interaction. In this Letter, we discuss the extension of this program to hard photodisintegration of a pp pair in the 3He nucleus. Experimental confirmation of new features predicted here for the suggested reaction would advance our understanding of hard nuclear reactions. A main prediction, in contrast with low-energy observations, is that the pp breakup cross section is not much smaller than the one for pn break up. In some models, the energy-dependent oscillations observed for pp scattering are predicted to appear in the γ 3He → pp + n reaction. Such an observation would open up a completely new field in studies of color coherence phenomena in hard nuclear reactions. We also demonstrate that, in addition to the energy dependence, the measurement of the light-cone momentum distribution of the recoil neutron provides an independent test of the underlying dynamics of hard disintegration.

Original languageEnglish (US)
Pages (from-to)69-77
Number of pages9
JournalPhysics Letters, Section B: Nuclear, Elementary Particle and High-Energy Physics
Volume578
Issue number1-2
DOIs
StatePublished - Jan 1 2004

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nuclear reactions
protons
disintegration
deuterons
energy
cones
quarks
momentum
color
neutrons
oscillations
nuclei
cross sections
predictions
scattering

All Science Journal Classification (ASJC) codes

  • Nuclear and High Energy Physics

Cite this

Brodsky, S. J. ; Frankfurt, L. ; Gilman, R. ; Hiller, J. R. ; Miller, G. A. ; Piasetzky, E. ; Sargsian, M. ; Strikman, M. / Hard photodisintegration of a proton pair in 3He. In: Physics Letters, Section B: Nuclear, Elementary Particle and High-Energy Physics. 2004 ; Vol. 578, No. 1-2. pp. 69-77.
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Brodsky, SJ, Frankfurt, L, Gilman, R, Hiller, JR, Miller, GA, Piasetzky, E, Sargsian, M & Strikman, M 2004, 'Hard photodisintegration of a proton pair in 3He', Physics Letters, Section B: Nuclear, Elementary Particle and High-Energy Physics, vol. 578, no. 1-2, pp. 69-77. https://doi.org/10.1016/j.physletb.2003.10.018

Hard photodisintegration of a proton pair in 3He. / Brodsky, S. J.; Frankfurt, L.; Gilman, R.; Hiller, J. R.; Miller, G. A.; Piasetzky, E.; Sargsian, M.; Strikman, M.

In: Physics Letters, Section B: Nuclear, Elementary Particle and High-Energy Physics, Vol. 578, No. 1-2, 01.01.2004, p. 69-77.

Research output: Contribution to journalArticle

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AU - Brodsky, S. J.

AU - Frankfurt, L.

AU - Gilman, R.

AU - Hiller, J. R.

AU - Miller, G. A.

AU - Piasetzky, E.

AU - Sargsian, M.

AU - Strikman, M.

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