Zobrazeno 1 - 10
of 197
pro vyhledávání: '"Austin, Sam M."'
Autor:
Zamora, J. C., Zegers, R. G. T., Austin, Sam M., Bazin, D., Brown, B. A., Bender, P. C., Crawford, H. L., Engel, J., Falduto, A., Gade, A., Gastis, P., Gao, B., Ginter, T., Guess, C. J., Lipschutz, S., Longfellow, B., Macchiavelli, A. O., Miki, K., Ney, E., Noji, S., Pereira, J., Schmitt, J., Sullivan, C., Titus, R., Weisshaar, D.
The Gamow-Teller strength distribution from ${}^{88}$Sr was extracted from a $(t,{}^{3}\text{He}+\gamma)$ experiment at 115 MeV/$u$ to constrain estimates for the electron-capture rates on nuclei around $N=50$, between and including $^{78}$Ni and $^{
Externí odkaz:
http://arxiv.org/abs/1906.05934
In a sufficiently hot and dense astrophysical environment the rate of the triple-alpha (3alpha) reaction can increase greatly over the value appropriate for helium burning stars owing to hadronically induced de-excitation of the Hoyle state. In this
Externí odkaz:
http://arxiv.org/abs/1708.07204
A weak-rate library aimed at investigating the sensitivity of astrophysical environments to variations of electron-capture rates on medium-heavy nuclei has been developed. With this library, the sensitivity of the core-collapse and early post-bounce
Externí odkaz:
http://arxiv.org/abs/1508.07348
Effective values for the key helium burning reaction rates, triple-alpha and 12C(alpha,gamma)16O, are obtained by adjusting their strengths so as to obtain the best match with the solar abundance pattern of isotopes uniquely or predominately made in
Externí odkaz:
http://arxiv.org/abs/1402.6676
Publikováno v:
The Astrophysical Journal, Volume 769, Issue 2, 2013
We study the sensitivity of presupernova evolution and supernova nucleosynthesis yields of massive stars to variations of the helium-burning reaction rates within the range of their uncertainties. We use the current solar abundances from Lodders (200
Externí odkaz:
http://arxiv.org/abs/1212.5513
Autor:
Cole, A. L., Anderson, T. S., Zegers, R. G. T., Austin, Sam M., Brown, B. A., Valdez, L., Gupta, S., Hitt, G. W., Fawwaz, O.
This paper presents a systematic evaluation of the ability of theoretical models to reproduce experimental Gamow-Teller transition strength distributions measured via (n,p)-type charge-exchange reactions at intermediate beam energies. The focus is on
Externí odkaz:
http://arxiv.org/abs/1204.1994
Analysis of data involving nuclei far from stability often requires optical potential (OP) for neutron scattering. Since neutron data is seldom available, while proton scattering data is more abundant, it is useful to have estimates of the difference
Externí odkaz:
http://arxiv.org/abs/1202.2660
Autor:
Perdikakis, G., Sasano, M., Austin, Sam M., Bazin, D., Caesar, C., Cannon, S., Deaven, J. M., Doster, H. J., Guess, C. J., Hitt, G. W., Marks, J., Meharchand, R., Nguyen, D. T., Peterman, D., Prinke, A., Scott, M., Shimbara, Y., Thorne, K., Valdez, L., Zegers, R. G. T.
The Low Energy Neutron Detector Array (LENDA) is a neutron time-of-flight (TOF) spectrometer developed at the National Superconducting Cyclotron Lab- oratory (NSCL) for use in inverse kinematics experiments with rare isotope beams. Its design has bee
Externí odkaz:
http://arxiv.org/abs/1111.4011
Autor:
Guess, C. J., Adachi, T., Akimune, H., Algora, A., Austin, Sam M., Bazin, D., Brown, B. A., Caesar, C., Deaven, J. M., Ejiri, H., Estevez, E., Fang, D., Faessler, A., Frekers, D., Fujita, H., Fujita, Y., Fujiwara, M., Grinyer, G. F., Harakeh, M. N., Hatanaka, K., Herlitzius, C., Hirota, K., Hitt, G. W., Ishikawa, D., Matsubara, H., Meharchand, R., Molina, F., Okamura, H., Ong, H. J., Perdikakis, G., Rodin, V., Rubio, B., Shimbara, Y., Süsoy, G., Suzuki, T., Tamii, A., Thies, J. H., Tur, C., Verhanovitz, N., Yosoi, M., Yurkon, J., Zegers, R. G. T., Zenihiro, J.
The $^{150}$Nd($^3$He,$t$) reaction at 140 MeV/u and $^{150}$Sm($t$,$^3$He) reaction at 115 MeV/u were measured, populating excited states in $^{150}$Pm. The transitions studied populate intermediate states of importance for the (neutrinoless) $\beta
Externí odkaz:
http://arxiv.org/abs/1105.0677