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of 2 513
pro vyhledávání: '"Schatz H"'
The elemental abundances between strontium and silver ($Z = 38-47$) observed in the atmospheres of very metal-poor stars (VMP) in the Galaxy may contain the fingerprint of the weak $r$-process and $\nu p$-process occurring in early core-collapse supe
Externí odkaz:
http://arxiv.org/abs/2312.12306
Autor:
Marshall, C., Meisel, Z., Montes, F., Wagner, L., Hermansen, K., Garg, R., Chipps, K. A., Tsintari, P., Dimitrakopoulos, N., Berg, G. P. A., Brune, C., Couder, M., Greife, U., Schatz, H., Smith, M. S.
Absolute cross sections measured using electromagnetic devices to separate and detect heavy recoiling ions need to be corrected for charge state fractions. Accurate prediction of charge state distributions using theoretical models is not always a pos
Externí odkaz:
http://arxiv.org/abs/2309.02991
Autor:
Jain, R., Brown, E. F., Schatz, H., Afanasjev, A. V., Beard, M., Gasques, L. R., Gupta, S. S., Hitt, G. W., Hix, W. R., Lau, R., Moller, P., Ong, W. J., Wiescher, M., Xu, Y.
Publikováno v:
ApJ 955 51 (2023)
The observation of X-rays during quiescence from transiently accreting neutron stars provides unique clues about the nature of dense matter. This, however, requires extensive modeling of the crusts and matching the results to observations. The pycnon
Externí odkaz:
http://arxiv.org/abs/2306.12451
Autor:
Browne, J., Chipps, K. A., Schmidt, K., Schatz, H., Ahn, S., Pain, S. D., Montes, F., Ong, W. J., Greife, U., Allen, J., Bardayan, D. W., Blackmon, J. C., Blankstein, D., Cha, S., Chae, K. Y., Febbraro, M., Hall, M. R., Jones, K. L., Kontos, A., Meisel, Z., O'Malley, P. D., Schmitt, K. T., Smith, K., Smith, M. S., Thompson, P., Toomey, R., Vostinar, M., Walter, D.
Publikováno v:
Phys. Rev. Lett. 130 (2023) 212701
The rate of the final step in the astrophysical $\alpha$p-process, the $^{34}$Ar($\alpha$,\textit{p})$^{37}$K reaction, suffers from large uncertainties due to lack of experimental data, despite having a considerable impact on the observable light cu
Externí odkaz:
http://arxiv.org/abs/2305.19422
Autor:
Misch, G. W., Mumpower, M. R., Kondev, F. G., Marley, S. T., Almaraz-Calderon, S., Brodeur, M., Brown, B. A., Carpenter, M. P., Carroll, J. J., Chiara, C. J., Chipps, K. A., Crider, B. P., Gade, A., Grzywacz, R., Jones, K. L., Kay, B. P., Kolos, K., Litvinov, Yu. A., Lopez-Caceres, S., Meyer, B. S., Minamisono, K., Morgan, G. E., Orford, R., Pain, S. D., Purcell, J., Ratkiewicz, A., Schatz, H., Sprouse, T. M., Sun, Y., Surman, R., Tannous, J. A., Walker, P. M.
We report on the Facility for Rare Isotope Beams (FRIB) Theory Alliance topical program "Nuclear Isomers in the Era of FRIB". We outline the many ways isomers influence and contribute to nuclear science and technology, especially in the four FRIB pil
Externí odkaz:
http://arxiv.org/abs/2304.10608
Autor:
Schatz, H., Reyes, A. D. Becerril, Best, A., Brown, E. F., Chatziioannou, K., Chipps, K. A., Deibel, C. M., Ezzeddine, R., Galloway, D. K., Hansen, C. J., Herwig, F., Ji, A. P., Lugaro, M., Meisel, Z., Norman, D., Read, J. S., Roberts, L. F., Spyrou, A., Tews, I., Timmes, F. X., Travaglio, C., Vassh, N., Abia, C., Adsley, P., Agarwal, S., Aliotta, M., Aoki, W., Arcones, A., Aryan, A., Bandyopadhyay, A., Banu, A., Bardayan, D. W., Barnes, J., Bauswein, A., Beers, T. C., Bishop, J., Boztepe, T., Côté, B., Caplan, M. E., Champagne, A. E., Clark, J. A., Couder, M., Couture, A., de Mink, S. E., Debnath, S., deBoer, R. J., Hartogh, J. den, Denissenkov, P., Dexheimer, V., Dillmann, I., Escher, J. E., Famiano, M. A., Farmer, R., Fisher, R., Fröhlich, C., Frebel, A., Fryer, C., Fuller, G., Ganguly, A. K., Ghosh, S., Gibson, B. K., Gorda, T., Gourgouliatos, K. N., Graber, V., Gupta, M., Haxton, W., Heger, A., Hix, W. R., Ho, W C. G., Holmbeck, E. M., Hood, A. A., Huth, S., Imbriani, G., Izzard, R. G., Jain, R., Jayatissa, H., Johnston, Z., Kajino, T., Kankainen, A., Kiss, G. G., Kwiatkowski, A., La Cognata, M., Laird, A. M., Lamia, L., Landry, P., Laplace, E., Launey, K. D., Leahy, D., Leckenby, G., Lennarz, A., Longfellow, B., Lovell, A. E., Lynch, W. G., Lyons, S. M., Maeda, K., Masha, E., Matei, C., Merc, J., Messer, B., Montes, F., Mukherjee, A., Mumpower, M., Neto, D., Nevins, B., Newton, W. G., Nguyen, L. Q., Nishikawa, K., Nishimura, N., Nunes, F. M., O'Connor, E., O'Shea, B. W., Ong, W-J., Pain, S. D., Pajkos, M. A., Pignatari, M., Pizzone, R. G., Placco, V. M., Plewa, T., Pritychenko, B., Psaltis, A., Puentes, D., Qian, Y-Z., Radice, D., Rapagnani, D., Rebeiro, B. M., Reifarth, R., Richard, A. L., Rijal, N., Roederer, I. U., Rojo, J. S., K, J. S, Saito, Y., Schwenk, A., Sergi, M. L., Sidhu, R. S., Simon, A., Sivarani, T., Skúladóttir, Á., Smith, M. S., Spiridon, A., Sprouse, T. M., Starrfield, S., Steiner, A. W., Strieder, F., Sultana, I., Surman, R., Szücs, T., Tawfik, A., Thielemann, F., Trache, L., Trappitsch, R., Tsang, M. B., Tumino, A., Upadhyayula, S., Martínez, J. O. Valle, Van der Swaelmen, M., Vázquez, C. Viscasillas, Watts, A., Wehmeyer, B., Wiescher, M., Wrede, C., Yoon, J., Zegers, R G. T., Zermane, M. A., Zingale, M.
Nuclear Astrophysics is a field at the intersection of nuclear physics and astrophysics, which seeks to understand the nuclear engines of astronomical objects and the origin of the chemical elements. This white paper summarizes progress and status of
Externí odkaz:
http://arxiv.org/abs/2205.07996
Constraining nucleosynthesis in neutrino-driven winds: observations, simulations and nuclear physics
A promising astrophysical site to produce the lighter heavy elements of the first $r$-process peak ($Z = 38-47$) is the moderately neutron rich ($0.4 < Y_e < 0.5$) neutrino-driven ejecta of explosive environments, such as core-collapse supernovae and
Externí odkaz:
http://arxiv.org/abs/2204.07136
Autor:
Saxena, M., Ong, W. -J, Meisel, Z., Hoff, D. E. M., Smirnova, N., Bender, P. C., Burcher, S. P., Carpenter, M. P., Carroll, J. J., Chester, A., Chiara, C. J., Conaway, R., Copp, P. A., Crider, B. P., Derkin, J., Estrade, A., Hamad, G., Harke, J. T., Jain, R., Jayatissa, H., Liddick, S. N., Longfellow, B., Mogannam, M., Montes, F., Nepal, N., Ogunbeku, T. H., Richard, A. L., Schatz, H., Soltesz, D., Subedi, S. K., Sultana, I., Tamashiro, A. S., Tripathi, V., Xiaog, Y., Zink, R.
We measured the $^{57}$Zn $\beta$-delayed proton ($\beta$p) and $\gamma$ emission at the National Superconducting Cyclotron Laboratory. We find a $^{57}$Zn half-life of 43.6 $\pm$ 0.2 ms, $\beta$p branching ratio of (84.7 $\pm$ 1.4)%, and identify fo
Externí odkaz:
http://arxiv.org/abs/2204.01621
Autor:
Miskovich, S. A., Montes, F., Berg, G. P. A., Blackmon, J., Chipps, K. A., Couder, M., Deibel, C. M., Hermansen, K., Hood, A. A., Jain, R., Ruland, T., Schatz, H., Smith, M. S., Tsintari, P., Wagner, L.
The SEparator for CApture Reactions (SECAR) is a next-generation recoil separator system at the Facility for Rare Isotope Beams (FRIB) designed for the direct measurement of capture reactions on unstable nuclei in inverse kinematics. To maximize the
Externí odkaz:
http://arxiv.org/abs/2202.01978
Autor:
Schatz, H., Meisel, Z., Brown, E. F., Gupta, S. S., Hitt, G. W., Hix, W. R., Jain, R., Lau, R., Möller, P., Ong, W. -J., Shternin, P. S., Xu, Y., Wiescher, M.
Nuclear reactions heat and cool the crust of accreting neutron stars and need to be understood to interpret observations of X-ray bursts and of long-term cooling in transiently accreting systems. It was recently suggested that previously neglected ne
Externí odkaz:
http://arxiv.org/abs/2112.11544