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1. Solar fusion cross sections. II. the pp chain and CNO cycles

Author

Adelberger, EG, García, A, Robertson, RGH, Snover, KA, Balantekin, AB, Heeger, K, Ramsey-Musolf, MJ, Bemmerer, D, Junghans, A, Bertulani, CA, Chen, JW, Costantini, H, Prati, P, Couder, M, Uberseder, E, Wiescher, M, Cyburt, R, Davids, B, Freedman, SJ, Gai, M, Gazit, D, Gialanella, L, Imbriani, G, Greife, U, Hass, M, Haxton, WC, Itahashi, T, Kubodera, K, Langanke, K, Leitner, D, Leitner, M, Vetter, P, Winslow, L, Marcucci, LE, Motobayashi, T, Mukhamedzhanov, A, Tribble, RE, Nollett, KM, Nunes, FM, Park, TS, Parker, PD, Schiavilla, R, Simpson, EC, Spitaleri, C, Strieder, F, Trautvetter, HP, Suemmerer, K, and Typel, S

Subjects
nucl-ex, astro-ph.SR, hep-ex, nucl-th, Fluids & Plasmas, Physical Sciences
Abstract

The available data on nuclear fusion cross sections important to energy generation in the Sun and other hydrogen-burning stars and to solar neutrino production are summarized and critically evaluated. Recommended values and uncertainties are provided for key cross sections, and a recommended spectrum is given for B8 solar neutrinos. Opportunities for further increasing the precision of key rates are also discussed, including new facilities, new experimental techniques, and improvements in theory. This review, which summarizes the conclusions of a workshop held at the Institute for Nuclear Theory, Seattle, in January 2009, is intended as a 10-year update and supplement to 1998, Rev. Mod. Phys. 70, 1265RMPHAT0034-686110.1103/RevModPhys.70.1265. © 2011 American Physical Society.

Published
2011

2. Solar fusion cross sections. II. The pp chain and CNO cycles RID E-4776-2010 RID F-7909-2011

Author

Adelberger, Eg, Garcia, A, Robertson, Rgh, Snover, Ka, Balantekin, Ab, Heeger, K, Ramsey Musolf MJ, Bemmerer, D, Junghans, A, Bertulani, Ca, Chen, Jw, Costantini, H, Prati, P, Couder, M, Uberseder, E, Wiescher, M, Cyburt, R, Davids, B, Freedman, Sj, Gai, M, Gazit, D, Gialanella, L, Imbriani, G, Greife, U, Hass, M, Haxton, Wc, Itahashi, T, Kubodera, K, Langanke, K, Leitner, D, Leitner, M, Vetter, P, Winslow, L, Marcucci, LAURA ELISA, Motobayashi, T, Mukhamedzhanov, A, Tribble, Re, Nollett, Km, Nunes, Fm, Park, Ts, Parker, Pd, Schiavilla, R, Simpson, Ec, Spitaleri, C, Strieder, F, Trautvetter, Hp, Suemmerer, K, and Typel, S.

Published
2011

3. Temperature dependence of the GDR width in Sn-120

Author

Heckman, P., Bazin, D., Beene, Jr, Blumenfeld, Y., Chromik, Mj, Halbert, Ml, Liang, Jf, Mohrmann, E., Nakamura, T., Navin, A., Bradley M Sherrill, Snover, Ka, Thoennessen, M., Tryggestad, E., and Varner, Rl

4. Solar fusion cross sections II: the pp chain and CNO cycles

Author

Rocco Schiavilla, Gianluca Imbriani, Wick Haxton, Alejandro Garcia, H. Costantini, Michael J. Ramsey-Musolf, K. Langanke, Barry Davids, Ethan Uberseder, Filomena Nunes, Daniel Bemmerer, R. E. Tribble, Daniela Leitner, Moshe Gai, K. A. Snover, Paolo Prati, H. P. Trautvetter, Frank Strieder, Laura Elisa Marcucci, Arnd R. Junghans, R. G. Hamish Robertson, Kenneth M. Nollett, Kuniharu Kubodera, Claudio Spitaleri, Jiunn-Wei Chen, Michael Wiescher, Takahisa Itahashi, T. Motobayashi, Richard H. Cyburt, P. D. Parker, Edward Simpson, Matthaeus Leitner, Uwe Greife, Stuart Freedman, K. M. Heeger, K. Suemmerer, Stefan Typel, T.-S. Park, L. Winslow, A. M. Mukhamedzhanov, L. Gialanella, Michael Hass, A. B. Balantekin, Paul Vetter, Eric Adelberger, D. Gazit, Manoel Couder, Carlos A. Bertulani, Adelberger, E. G., Garcia, A., Robertson, R. G. H., Snover, K. A., Balantekin, A. B., Heeger, K., Ramsey Musolf, M. J., Bemmerer, D., Junghans, A., Bertulani, C. A., Chen, J. W., Costantini, H., Prati, P., Couder, M., Uberseder, E., Wiescher, M., Cyburt, R., Davids, B., Freedman, S. J., Gai, M., Gazit, D., Gialanella, L., Imbriani, Gianluca, Greife, U., Hass, M., Haxton, W. C., Itahashi, T., Kubodera, K., Langanke, K., Leitner, D., Leitner, M., Vetter, P., Winslow, L., Marcucci, L. E., Motobayashi, T., Mukhamedzhanov, A, Tribble, R. E., Nollett, K. M., Nunes, F. M., Park, T. S., Parker, P. D., Schiavilla, R., Simpson, E. C., Spitaleri, C., Strieder, F., Trautvetter, H. P., Suemmerer, K., Typel, S., Adelberger, Eg, Garcia, A, Robertson, Rgh, Snover, Ka, Balantekin, Ab, Heeger, K, Ramsey Musolf, Mj, Bemmerer, D, Junghans, A, Bertulani, Ca, Chen, Jw, Costantini, H, Prati, P, Couder, M, Uberseder, E, Wiescher, M, Cyburt, R, Davids, B, Freedman, Sj, Gai, M, Gazit, D, Gialanella, Lucio, Imbriani, G, Greife, U, Hass, M, Haxton, Wc, Itahashi, T, Kubodera, K, Langanke, K, Leitner, D, Leitner, M, Vetter, P, Winslow, L, Marcucci, Le, Motobayashi, T, Tribble, Re, Nollett, Km, Nunes, Fm, Park, T, Parker, Pd, Schiavilla, R, Simpson, Ec, Spitaleri, C, Strieder, F, Trautvetter, Hp, and Suemmerer, K

Subjects
Evoluzione Stellare, CNO cycle, astro-ph.SR, nucl-th, Nuclear Theory, Solar neutrino, Fluids & Plasmas, FOS: Physical sciences, General Physics and Astronomy, nucl-ex, High Energy Physics - Experiment, Nuclear Theory (nucl-th), Nuclear physics, High Energy Physics - Experiment (hep-ex), Affordable and Clean Energy, Solar core, Nucleosintesi Stellare, Nuclear fusion, Nuclear Experiment (nucl-ex), Nuclear Experiment, Solar and Stellar Astrophysics (astro-ph.SR), Fisica Nucleare Sperimentale, Physics, Proton–proton chain reaction, Astrofisica Nucleare, business.industry, hep-ex, Solar energy, Stars, Electricity generation, Astrophysics - Solar and Stellar Astrophysics, Physical Sciences, business
Abstract

We summarize and critically evaluate the available data on nuclear fusion cross sections important to energy generation in the Sun and other hydrogen-burning stars and to solar neutrino production. Recommended values and uncertainties are provided for key cross sections, and a recommended spectrum is given for 8B solar neutrinos. We also discuss opportunities for further increasing the precision of key rates, including new facilities, new experimental techniques, and improvements in theory. This review, which summarizes the conclusions of a workshop held at the Institute for Nuclear Theory, Seattle, in January 2009, is intended as a 10-year update and supplement to Reviews of Modern Physics 70 (1998) 1265., 54 pages, 20 figures, version to be published in Reviews of Modern Physics; various typos corrected and several updates made

Published
2010

5. Direct measurements of ²²Na(p,γ)²³Mg resonances and consequences for ²²Na production in classical novae.

Author

Sallaska AL, Wrede C, García A, Storm DW, Brown TA, Ruiz C, Snover KA, Ottewell DF, Buchmann L, Vockenhuber C, Hutcheon DA, and Caggiano JA

Abstract

The radionuclide 22Na is a potential astronomical observable that is expected to be produced in classical novae in quantities that depend on the thermonuclear rate of the 22Na(p,γ)23Mg reaction. We have measured the strengths of low-energy 22Na(p,γ)23Mg resonances directly and absolutely using a radioactive 22Na target. We find the strengths of resonances at Ep=213, 288, 454, and 610 keV to be higher than previous measurements by factors of 2.4-3.2, and we exclude important contributions to the rate from proposed resonances at Ep=198, 209, and 232 keV. The 22Na abundances expected in the ejecta of classical novae are reduced by a factor of ≈2.

Published
2010
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6. Reconciling coulomb dissociation and radiative capture measurements.

Author

Esbensen H, Bertsch GF, and Snover KA

Abstract

We calculate the energy spectrum for 8B dissociation on a Pb target to all orders in the Coulomb and nuclear fields, and show that the slope of S17(E) obtained in previous analyses of Coulomb dissociation data is too steep, due to deficiencies in the conventional first-order analysis that was used. With a more complete theory that avoids the far-field approximation and includes E2, nuclear and dynamical projectile polarization, the disagreement between indirect and direct methods for determining the S17(E) slope and the extrapolated S17(0) values is reduced significantly.

Published
2005
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7. 7Be(p,gamma)8B astrophysical S factor from precision cross section measurements.

Author

Junghans AR, Mohrmann EC, Snover KA, Steiger TD, Adelberger EG, Casandjian JM, Swanson HE, Buchmann L, Park SH, and Zyuzin A

Abstract

We measured the 7Be(p,gamma)8B cross section from E(c.m.) = 186 to 1200 keV, with a statistical-plus-systematic precision per point of better than +/-5%. All important systematic errors were measured including 8B backscattering losses. We obtain S17(0) = 22.3+/-0.7(expt)+/-0.5(theor) eV b from our data at E(c.m.)< or =300 keV and the theory of Descouvemont and Baye.

Published
2002
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