Zobrazeno 1 - 10
of 449
pro vyhledávání: '"FREEMAN, S J"'
Autor:
Chen, J., Kay, B. P., Hoffman, C. R., Tang, T. L., Tolstukhin, I. A., Bazin, D., Lubna, R. S., Ayyad, Y., Beceiro-Novo, S., Coombes, B. J., Freeman, S. J., Gaffney, L. P., Garg, R., Jayatissa, H., Kuchera, A. N., MacGregor, P., Mitchell, A. J., Mittig, W., Monteagudo, B., Munoz-Ramos, A., Müller-Gatermann, C., Recchia, F., Rijal, N., Santamaria, C., Serikow, M. Z., Sharp, D. K., Smith, J., Stecenko, J. K., Wilson, G. L., Wuosmaa, A. H., Yuan, C. X., Zamora, J. C., Zhang, Y. N.
The spin-orbit splitting between neutron 1$p$ orbitals at $^{33}$Si has been deduced using the single-neutron-adding ($d$,$p$) reaction in inverse kinematics with a beam of $^{32}$Si, a long-lived radioisotope. Reaction products were analyzed by the
Externí odkaz:
http://arxiv.org/abs/2404.05434
Autor:
Bennett, S. A., Garett, K., Sharp, D. K., Freeman, S. J., Smith, A. G., Wright, T. J., Kay, B. P., Tang, T. L., Tolstukhin, I. A., Ayyad, Y., Chen, J., Davies, P. J., Dolan, A., Gaffney, L. P., Heinz, A., Hoffman, C. R., Müller-Gatermann, C., Page, R. D., Wilson, G. L.
We demonstrate a new technique for obtaining fission data for nuclei away from $\beta$-stability. These types of data are pertinent to the astrophysical \textit{r-}process, crucial to a complete understanding of the origin of the heavy elements, and
Externí odkaz:
http://arxiv.org/abs/2304.10281
Autor:
Chen, J., Kay, B. P., Tang, T. L., Tolstukhin, I. A., Hoffman, C. R., Li, H., Yin, P., Zhao, X., Maris, P., Vary, J. P., Li, G., Lou, J. L., Avila, M. L., Ayyad, Y., Bennett, S., Bazin, D., Clark, J. A., Freeman, S. J., Jayatissa, H., Müller-Gatermann, C., Munoz, A., Santiago-Gonzalez, D., Sharp, D. K., Wuosmaa, A. H., Yuan, C. X.
Deuteron elastic scattering from 15C and inelastic scattering reactions to the first excited state of 15C were studied using a radioactive beam of 15C in inverse kinematics. The scattered deuterons were measured using HELIOS. The elastic scattering d
Externí odkaz:
http://arxiv.org/abs/2209.12252
Autor:
Kay, B. P., Tang, T. L., Tolstukhin, I. A., Roderick, G. B., Mitchell, A. J., Ayyad, Y., Bennett, S. A., Chen, J., Chipps, K. A., Crawford, H. L., Freeman, S. J., Garrett, K., Gott, M. D., Hall, M. R., Hoffman, C. R., Jayatissa, H., Macchiavelli, A. O., MacGregor, P. T., Sharp, D. K., Wilson, G. L.
Absolute cross sections for the addition of $s$- and $d$-wave neutrons to $^{14}$C and $^{14}$N have been determined simultaneously via the ($d$,$p$) reaction at 10 MeV/u. The difference between the neutron and proton separation energies, $\Delta S$,
Externí odkaz:
http://arxiv.org/abs/2207.02105
Autor:
Szwec, S. V., Sharp, D. K., Kay, B. P., Freeman, S. J., Schiffer, J. P., Adsley, P., Binnersley, C., de Séréville, N., Faestermann, T., Ruiz, R. F. Garcia, Hammache, F., Hertenberger, R., Meyer, A., Stefan, I., Vernon, A., Wilkins, S., Wirth, H. -F.
The occupancies and vacancies of the valence neutron orbitals across the stable tin isotopic chain from $112\leq A\leq 124$ have been determined. These were inferred from the cross sections of neutron-adding and -removing reactions. In each case, the
Externí odkaz:
http://arxiv.org/abs/2106.01848
Autor:
Kay, B. P., Schiffer, J. P., Freeman, S. J., Tang, T. L., Cropper, B. D., Faestermann, T., Hertenberger, R., Keatings, J. M., MacGregor, P. T., Smith, J. F., Wirth, H. -F.
Publikováno v:
Phys. Rev. C 103, 024319 (2021)
Nucleon-transfer sum rules have been assessed via a consistent reanalysis of cross-section data from neutron-adding ($d$,$p$) and -removing ($d$,$t$) reactions on well-deformed isotopes of Gd, Dy, Er, Yb, and W, with $92\leq N\leq108$, studied at the
Externí odkaz:
http://arxiv.org/abs/2009.08499
Autor:
Howard, A. M., Freeman, S. J., Sharp, D. K., Bloxham, T., Clark, J. A., Deibel, C. M., Kay, B. P., Parker, P. D., Schiffer, J. P., Thomas, J. S.
A systematic study of neutron-hole strength in the N = 81 nuclei 137Ba, 139Ce, 141Nd and 143Sm is reported. The single-neutron removal reactions (p,d) and (3He,4He) were measured at energies of 23 and 34 MeV, respectively. Spectroscopic factors were
Externí odkaz:
http://arxiv.org/abs/2003.09299
Autor:
Tang, T. L., Kay, B. P., Hoffman, C. R., Schiffer, J. P., Sharp, D. K., Gaffney, L. P., Freeman, S. J., Mumpower, M. R., Arokiaraj, A., Baader, E. F., Butler, P. A., Catford, W. N., de Angelis, G., Flavigny, F., Gott, M. D., Gregor, E. T., Konki, J., Labiche, M., Lazurus, I. H., MacGregor, P. T., Martel, I., Page, R. D., Podolyák, Zs., Poleshchuk, O., Raabe, R., Recchia, F., Smith, J. F., Szwec, S. V., Yang, J.
The nuclei below lead but with more than 126 neutrons are crucial to an understanding of the astrophysical $r$-process in producing nuclei heavier than $A\sim190$. Despite their importance, the structure and properties of these nuclei remain experime
Externí odkaz:
http://arxiv.org/abs/2001.00976
Autor:
Sharp, D. K., Freeman, S. J., Cropper, B. D., Davies, P. J., Faestermann, T., Hatfield, T. M., Hertenberger, R., Hughes, S. J. F., MacGregor, P. T., Wirth, H. -F.
Publikováno v:
Phys. Rev. C 100, 024329 (2019)
The pairing properties of the neutrinoless double-$\beta$ decay candidate $^{116}$Cd have been investigated. Measurements of the two-neutron removal reactions on isotopes of $^{114,116}$Cd have been made in order to identify 0$^+$ strength in the res
Externí odkaz:
http://arxiv.org/abs/1910.12093
Autor:
Gade, A., Janssens, R. V. F., Tostevin, J. A., Bazin, D., Belarge, J., Bender, P. C., Bottoni, S., Carpenter, M. P., Elman, B., Freeman, S. J., Lauritsen, T., Lenzi, S. M., Longfellow, B., Lunderberg, E., Poves, A., Riley, L. A., Sharp, D. K., Weisshaar, D., Zhu, S.
Publikováno v:
Phys. Rev. C 99, 011301(R) (2019)
Excited states in the neutron-rich \nuc{70}{Fe} nucleus were populated in a one-proton removal reaction from \nuc{71}{Co} projectiles at 87~MeV/nucleon. A new transition was observed with the $\gamma$-ray tracking array GRETINA and shown to feed the
Externí odkaz:
http://arxiv.org/abs/1812.03342