Zobrazeno 1 - 10
of 511
pro vyhledávání: '"Zegers, R."'
Charge-exchange reactions are versatile probes for nuclear structure. In particular, when populating isobaric analog states, these reactions are used to study isovector nuclear densities and neutron skins. The quality of the information extracted fro
Externí odkaz:
http://arxiv.org/abs/2403.18629
Autor:
Tsantiri, A., Palmisano-Kyle, A., Spyrou, A., Mohr, P., Berg, H. C., DeYoung, P. A., Dombos, A. C., Gastis, P., Good, E. C., Harris, C. M., Liddick, S. N., Lyons, S. M., Olivas-Gomez, O., Owens-Fryar, G., Pereira, J., Richard, A. L., Simon, A., Smith, M. K., Zegers, R. G. T.
Publikováno v:
Phys. Rev. C 107, 035808 (2023)
The total cross section of the $^{82}$Kr(p,$\gamma$)$^{83}$Rb reaction was measured for the first time at effective center-of-mass energies between 2.4 and 3.0 MeV, within the relevant Gamow window for the astrophysical $\gamma$ process. The experime
Externí odkaz:
http://arxiv.org/abs/2305.14523
Autor:
Spieker, M., Agbemava, S. E., Bazin, D., Cottle, S. Biswas P. D., Farris, P. J., Gade, A., Ginter, T., Giraud, S., Kemper, K. W., Li, J., Nazarewicz, W., Noji, S., Pereira, J., Riley, L. A., Smith, M., Weisshaar, D., Zegers, R. G. T.
In the Ge-Sr mass region, isotopes with neutron number $N \leq 40$ are known to feature rapid shape changes with both nucleon number and angular momentum. To gain new insights into their structure, inelastic proton scattering experiments in inverse k
Externí odkaz:
http://arxiv.org/abs/2304.14246
Autor:
Spieker, M., Riley, L. A., Cottle, P. D., Kemper, K. W., Bazin, D., Biswas, S., Farris, P. J., Gade, A., Ginter, T., Giraud, S., Li, J., Noji, S., Pereira, J., Smith, M., Weisshaar, D., Zegers, R. G. T.
Publikováno v:
Physical Review C 106, 054305 (2022)
Enhanced octupole collectivity is expected in the neutron-deficient Ge, Se and Kr isotopes with neutron number $N \approx 40$ and has indeed been observed for $^{70,72}$Ge. Shape coexistence and configuration mixing are, however, a notorious challeng
Externí odkaz:
http://arxiv.org/abs/2211.12288
Autor:
Giraud, S., Zamora, J. C., Zegers, R. G. T., Ayyad, Y., Bazin, D., Mittig, W., Carls, A., DeNudt, M., Rahman, Z.
Charge-exchange $(d,{}^{2}\text{He})$ reactions in inverse kinematics at intermediate energies are a very promising method to investigate the Gamow-Teller transition strength in unstable nuclei. A simulation and analysis software based on the $\rm{\s
Externí odkaz:
http://arxiv.org/abs/2211.02551
Autor:
Giraud, S., Zamora, J. C., Zegers, R., Bazin, D., Ayyad, Y., Bacca, S., Beceiro-Novo, S., Brown, B. A., Carls, A., Chen, J., Cortesi, M., DeNudt, M., Hagen, G., Hultquist, C., Maher, C., Mittig, W., Ndayisabye, F., Noji, S., Novario, S. J., Pereira, J., Rahman, Z., Schmitt, J., Serikow, M., Sun, L. J., Surbrook, J., Watwood, N., Wheeler, T.
For the first time, the $(d,{}^2\text{He})$ reaction was successfully used in inverse kinematics to extract the Gamow-Teller transition strength in the $\beta^{+}$ direction from an unstable nucleus. The nucleus studied was $^{14}$O, and the Gamow-Te
Externí odkaz:
http://arxiv.org/abs/2210.15866
Autor:
Noji, S., Zegers, R. G. T., Berg, G. P. A., Amthor, A. M., Baumann, T., Bazin, D., Burkhardt, E. E., Cortesi, M., DeKamp, J. C., Hausmann, M., Portillo, M., Potterveld, D. H., Sherrill, B. M., Stolz, A., Tarasov, O. B., York, R. C.
Publikováno v:
Nucl. Instrum. Methods Phys. Res., Sect. A 1045 (2023) 167548
A High Rigidity Spectrometer (HRS) has been designed for experiments at the Facility for Rare-Isotope Beams (FRIB) at Michigan State University (MSU). The HRS will allow experiments to be performed with the most exotic neutron-rich isotopes at high b
Externí odkaz:
http://arxiv.org/abs/2207.05995
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:
Giraud, S., Ney, E. M., Ravlić, A., Zegers, R. G. T., Engel, J., Paar, N., Brown, B. A., Gabler, J. -M., Lesniak, J., Rebenstock, J.
The temperature dependence of stellar electron-capture (EC) rates is investigated, with a focus on nuclei around $N=50$, just above $Z=28$, which play an important role during the collapse phase of core-collapse supernovae (CCSN). Two new microscopic
Externí odkaz:
http://arxiv.org/abs/2112.01626
Autor:
Meisel, Z., George, S., Ahn, S., Bazin, D., Brown, B. A., Browne, J., Carpino, J. F., Chung, H., Cyburt, R. H., Estradé, A., Famiano, M., Gade, A., Langer, C., Matoš, M., Mittig, W., Montes, F., Morrissey, D. J., Pereira, J., Schatz, H., Schatz, J., Scott, M., Shapira, D., Smith, K., Stevens, J., Tan, W., Tarasov, O., Towers, S., Wimmer, K., Winkelbauer, J. R., Yurkon, J., Zegers, R. G. T.
Publikováno v:
Physical Review C 101, 052801(R) (2020)
We present mass excesses (ME) of neutron-rich isotopes of Ar through Fe, obtained via TOF-$B\rho$ mass spectrometry at the National Superconducting Cyclotron Laboratory. Our new results have significantly reduced systematic uncertainties relative to
Externí odkaz:
http://arxiv.org/abs/2004.14101