Dynamics of {sup 1}S{sub 0} diproton formation in the pd{yields}{l_brace}pp{r_brace}{sub s}n and pN{yields}{l_brace}pp{r_brace}{sub s}{pi} reactions in the GeV region

Journal Article · Mon Jan 15 04:00:00 EST 2007 · Physical Review. C, Nuclear Physics

DOI:https://doi.org/10.1103/PHYSREVC.75.014008· OSTI ID:20990939

Uzikov, Yu N ^[1]; Haidenbauer, J ^[2]; Wilkin, C ^[3]

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1. Laboratory of Nuclear Problems, Joint Institute for Nuclear Research, RU-141980 Dubna (Russian Federation)
2. Institut fuer Kernphysik (Theorie), Forschungszentrum Juelich, D-52425 Juelich (Germany)
3. Physics and Astronomy Department, University College London, London, WC1E 6BT (United Kingdom)

Mechanisms for the production of {sup 1}S{sub 0} diproton pairs, {l_brace}pp{r_brace}{sub s}, in the pd{yields}{l_brace}pp{r_brace}{sub s}n reaction are studied at proton beam energies 0.5-2 GeV in kinematics similar to those of backward elastic pd scattering. This reaction provides valuable information on the short-range NN and pd interactions that is complementary to that investigated in the well-known pd{yields}dp and dp{yields}p(0{sup degree})X processes. The pd{yields}{l_brace}pp{r_brace}{sub s}n reaction is related to the subprocesses {pi}{sup 0}d{yields}pn and pN{yields}{l_brace}pp{r_brace}{sub s}{pi} using two different one-pion-exchange (OPE) diagrams. Within both these models a reasonable agreement could be obtained with the data below 1 GeV. The similar energy dependence of the pd{yields}{l_brace}pp{r_brace}{sub s}n and pd{yields}dp cross sections and the small ratio of about 1.5% in the production of {l_brace}pp{r_brace}{sub s} to deuteron final states follow naturally within the OPE models.

• OSTI ID: 20990939
• Journal Information: Physical Review. C, Nuclear Physics, Journal Name: Physical Review. C, Nuclear Physics Journal Issue: 1 Vol. 75; ISSN 0556-2813; ISSN PRVCAN
• Country of Publication: United States
• Language: English

Related Subjects

73 NUCLEAR PHYSICS AND RADIATION PHYSICS
CROSS SECTIONS
DEUTERONS
DIAGRAMS
ENERGY DEPENDENCE
GEV RANGE
INTERACTIONS
OPE MODEL
PIONS
PROTON BEAMS