Zobrazeno 1 - 10
of 1 252
pro vyhledávání: '"Meisel, Z"'
Autor:
Fougères, C., Avila, M. L., Jayatissa, H., Santiago-Gonzalez, D., Brandenburg, K., Meisel, Z., Mohr, P., Montes, F., Műller-Gatermann, C., Neto, D., Ong, W. -J., Pereira, J., Rehm, K. E., Tang, T. L., Tolstukhin, I. A., Varriano, L., Wilson, G., Wu, J.
About half of the heavy elements beyond iron are known to be produced by the rapid neutron capture process, known as r-process. However, the astrophysical site producing the r-process is still uncertain. Chemical abundances observed in several cosmic
Externí odkaz:
http://arxiv.org/abs/2402.01534
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:
Yandow, I. T., Abdullah-Smoot, A., Bollen, G., Hamaker, A., Nicoloff, C. R., Puentes, D., Redshaw, M., Gulyuz, K., Meisel, Z., Ong, W. -J., Ringle, R., Sandler, R., Schwarz, S., Sumithrarachchi, C. S., Valverde, A. A.
Light curves are the primary observable of type-I x-ray bursts. Computational x-ray burst models must match simulations to observed light curves. Most of the error in simulated curves comes from uncertainties in $rp$ process reaction rates, which can
Externí odkaz:
http://arxiv.org/abs/2306.10163
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:
Jayatissa, H., Avila, M. L., Rehm, K. E., Mohr, P., Meisel, Z., Chen, J., Hoffman, C. R., Liang, J., Müller-Gatermann, C., Neto, D., Ong, W. J., Psaltis, A., Santiago-Gonzalez, D., Tang, T. L., Ugalde, C., Wilson, G.
The $^{22}$Mg($\alpha$,$p$)$^{25}$Al reaction rate has been identified as a major source of uncertainty for understanding the nucleosynthesis flow in Type-I x-ray bursts (XRBs). We report a direct measurement of the energy- and angle-integrated cross
Externí odkaz:
http://arxiv.org/abs/2211.00628
Autor:
Brandenburg, K., Hamad, G., Meisel, Z., Brune, C. R., Carter, D. E., Derkin, J., Ingram, D. C., Jones-Alberty, Y., Kenady, B., Massey, T. N., Saxena, M., Soltesz, D., Subedi, S. K., Warren, J.
We present results from direct measurements of the $^{27}{\rm Al}(\alpha,n)$ thick target yield from laboratory incident energies $E_{\alpha}\approx$ 3$-$5~MeV, performed with the $^{3}$HeBF$_{3}$ Giant Barrel (HeBGB) neutron detector at the Edwards
Externí odkaz:
http://arxiv.org/abs/2208.12405
Autor:
Lotay, G., Henderson, J., Catford, W. N., Ali, F. A., Berean, J., Bernier, N., Bhattacharjee, S. S., Bowry, M., Caballero-Folch, R., Davids, B., Drake, T. E., Garnsworthy, A. B., GhaziMoradi, F., Gillespie, S. A., Greaves, B., Hackman, G., Hallam, S., Hymers, D., Kasanda, E., Levy, D., Luna, B. K., Mathews, A., Meisel, Z., Moukaddam, M., Muecher, D., Olaizola, B., Orr, N. A., Patel, H. P., Rajabali, M. M., Saito, Y., Smallcombe, J., Spencer, M., Svensson, C. E., Whitmore, K., Williams, M.
We present new experimental measurements of resonance strengths in the astrophysical 23Al(p, {\gamma})24Si reaction, constraining the pathway of nucleosynthesis beyond 22Mg in X-ray burster scenarios. Specifically, we have performed the first measure
Externí odkaz:
http://arxiv.org/abs/2208.08481
Autor:
Puentes, D., Meisel, Z., Bollen, G., Hamaker, A., Langer, C., Leistenschneider, E., Nicoloff, C., Ong, W. -J., Redshaw, M., Ringle, R., Sumithrarachchi, C. S., Surbrook, J., Valverde, A. A., Yandow, I. T.
Publikováno v:
Phys. Rev. C 106, L012801 (2022)
We report a high precision mass measurement of $^{24}{\rm Si}$, performed with the LEBIT facility at the National Superconducting Cyclotron Laboratory. The atomic mass excess, $10\;753.8$(37) keV, is a factor of 5 more precise than previous results.
Externí odkaz:
http://arxiv.org/abs/2207.05818
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
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