Astrophysical S{sub 17}(0) factor from a measurement of the {sup 2}H({sup 7}Be,{sup 8}B)n reaction at E{sub c.m.}=4.5 MeV

Journal Article · Sun Jan 15 00:00:00 EST 2006 · Physical Review. C, Nuclear Physics

DOI:https://doi.org/10.1103/PhysRevC.73.015808· OSTI ID:20771237

Das, J J; Sugathan, P; Madhavan, N; Jhingan, A; Nath, S; Varughese, T ^[1]; Datar, V M; Navin, A ^[2]; Rao, P.V. Madhusudhana; Sastry, D L ^[3]; Dhiman, S K ^[4]; Barua, S ^[5]; Sinha, A K ^[6]; Singh, R ^[7]; Ray, A ^[8]; Kulkarni, R G ^[9]; Shyam, R ^[10]

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1. Nuclear Science Centre, P.O. Box 10502, Aruna Asaf Ali Marg, New Delhi 110067 (India)
2. Nuclear Physics Division, Bhabha Atomic Research Centre, Trombay, Mumbai 400085 (India)
3. Department of Nuclear Physics, Andhra University, Visakhapatnam 530003 (India)
4. Department of Physics, Himachal Pradesh University, Shimla 171005 (India)
5. Department of Physics, Gauhati University, Jalukbari-Guwahati 787014 (India)
6. IUC-DAEF Kolkata Centre, Bidhan Nagar, Kolkata 700092 (India)
7. Department of Physics and Astrophysics, Delhi University, New Delhi 110007 (India)
8. Variable Energy Cyclotron Centre, 1/AF Bidhan Nagar, Kolkata 700064 (India)
9. Department of Physics, Saurashtra University, Rajkot 360005 (India)
10. Saha Institute of Nuclear Physics, 1/AF Bidhan Nagar, Kolkata 700064 (India)

Angular distribution measurements of {sup 2}H({sup 7}Be,{sup 7}Be){sup 2}H and {sup 2}H({sup 7}Be,{sup 8}B)n reactions at E{sub c.m.}{approx}4.5 MeV were performed to extract the astrophysical S{sub 17}(0) factor using the asymptotic normalization coefficient (ANC) method. For this purpose a pure, low emittance {sup 7}Be beam was separated from the primary {sup 7}Li beam by a recoil mass spectrometer operated in a novel mode. A beam stopper at 0 deg. allowed for the use of a higher {sup 7}Be beam intensity. Measurement of the elastic scattering in the entrance channel using kinematic coincidence, facilitated the determination of the optical model parameters needed for the analysis of the transfer data. The present measurement significantly reduces errors in the extracted {sup 7}Be(p,{gamma}) cross section using the ANC method. We get S{sub 17} (0) = 20.7 {+-} 2.4 eV b.

• OSTI ID: 20771237
• Journal Information: Physical Review. C, Nuclear Physics, Vol. 73, Issue 1; Other Information: DOI: 10.1103/PhysRevC.73.015808; (c) 2006 The American Physical Society; Country of input: International Atomic Energy Agency (IAEA); ISSN 0556-2813
• Country of Publication: United States
• Language: English

Related Subjects

73 NUCLEAR PHYSICS AND RADIATION PHYSICS
ANGULAR DISTRIBUTION
BERYLLIUM 7
BERYLLIUM 7 REACTIONS
BORON 8
CAPTURE
COSMIC NEUTRINOS
CROSS SECTIONS
DEUTERIUM TARGET
ELASTIC SCATTERING
EV RANGE
MEV RANGE
NUCLEOSYNTHESIS
OPTICAL MODELS
PROTON REACTIONS
RECOILS