skip to main content
OSTI.GOV title logo U.S. Department of Energy
Office of Scientific and Technical Information

Title: 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

Abstract

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.

Authors:
; ; ; ; ;  [1]; ;  [2]; ;  [3];  [4];  [5];  [6];  [7];  [8];  [9];  [10]
  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)
Publication Date:
OSTI Identifier:
20771237
Resource Type:
Journal Article
Resource Relation:
Journal Name: Physical Review. C, Nuclear Physics; Journal Volume: 73; Journal Issue: 1; Other Information: DOI: 10.1103/PhysRevC.73.015808; (c) 2006 The American Physical Society; Country of input: International Atomic Energy Agency (IAEA)
Country of Publication:
United States
Language:
English
Subject:
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

Citation Formats

Das, J.J., Sugathan, P., Madhavan, N., Jhingan, A., Nath, S., Varughese, T., Datar, V.M., Navin, A., Rao, P.V. Madhusudhana, Sastry, D.L., Dhiman, S.K., Barua, S., Sinha, A.K., Singh, R., Ray, A., Kulkarni, R.G., and Shyam, R. 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. United States: N. p., 2006. Web. doi:10.1103/PhysRevC.73.015808.
Das, J.J., Sugathan, P., Madhavan, N., Jhingan, A., Nath, S., Varughese, T., Datar, V.M., Navin, A., Rao, P.V. Madhusudhana, Sastry, D.L., Dhiman, S.K., Barua, S., Sinha, A.K., Singh, R., Ray, A., Kulkarni, R.G., & Shyam, R. 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. United States. doi:10.1103/PhysRevC.73.015808.
Das, J.J., Sugathan, P., Madhavan, N., Jhingan, A., Nath, S., Varughese, T., Datar, V.M., Navin, A., Rao, P.V. Madhusudhana, Sastry, D.L., Dhiman, S.K., Barua, S., Sinha, A.K., Singh, R., Ray, A., Kulkarni, R.G., and Shyam, R. Sun . "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". United States. doi:10.1103/PhysRevC.73.015808.
@article{osti_20771237,
title = {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},
author = {Das, J.J. and Sugathan, P. and Madhavan, N. and Jhingan, A. and Nath, S. and Varughese, T. and Datar, V.M. and Navin, A. and Rao, P.V. Madhusudhana and Sastry, D.L. and Dhiman, S.K. and Barua, S. and Sinha, A.K. and Singh, R. and Ray, A. and Kulkarni, R.G. and Shyam, R.},
abstractNote = {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.},
doi = {10.1103/PhysRevC.73.015808},
journal = {Physical Review. C, Nuclear Physics},
number = 1,
volume = 73,
place = {United States},
year = {Sun Jan 15 00:00:00 EST 2006},
month = {Sun Jan 15 00:00:00 EST 2006}
}