Zobrazeno 1 - 10
of 924
pro vyhledávání: '"Escher J."'
The Zirconium isotopes exhibit structural properties that present multiple challenges to nuclear theory. To shed light on the underlying causes of the observations, and to test the predictive power of a state-of-the-art nuclear structure approach, we
Externí odkaz:
http://arxiv.org/abs/2308.13374
Publikováno v:
Phys. Rev. C 107, 014602 (2023)
Optical-model potentials (OMPs) continue to play a key role in nuclear reaction calculations. However, the uncertainty of phenomenological OMPs in widespread use -- inherent to any parametric model trained on data -- has not been fully characterized,
Externí odkaz:
http://arxiv.org/abs/2211.07741
Autor:
Hebborn, C., Nunes, F. M., Potel, G., Dickhoff, W. H., Holt, J. W., Atkinson, M. C., Baker, R. B., Barbieri, C., Blanchon, G., Burrows, M., Capote, R., Danielewicz, P., Dupuis, M., Elster, Ch., Escher, J. E., Hlophe, L., Idini, A., Jayatissa, H., Kay, B. P., Kravvaris, K., Manfredi, J. J., Mercenne, A., Morillon, B., Perdikakis, G., Pruitt, C. D., Sargsyan, G. H., Thompson, I. J., Vorabbi, M., Whitehead, T. R.
We review recent progress and motivate the need for further developments in nuclear optical potentials that are widely used in the theoretical analysis of nucleon elastic scattering and reaction cross sections. In regions of the nuclear chart away fr
Externí odkaz:
http://arxiv.org/abs/2210.07293
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
Publikováno v:
EPJ Web of Conferences, Vol 113, p 08010 (2016)
Treating (d, p) reactions in a Faddeev-AGS framework requires the interactions in the sub-systems as input. We derived separable representations for the neutron and proton-nucleus interactions from phenomenological global optical potentials. In order
Externí odkaz:
https://doaj.org/article/7f0fc4fb697844a5ab227dea216c7991
Autor:
Escher J. E., Tonchev A. P., Burke J. T., Bedrossian P., Casperson R. J., Cooper N., Hughes R. O., Humby P., Ilieva R. S., Ota S., Pietralla N., Scielzo N. D., Werner V.
Publikováno v:
EPJ Web of Conferences, Vol 122, p 12001 (2016)
Cross sections for compound-nuclear reactions involving unstable targets are important for many applications, but can often not be measured directly. Several indirect methods have recently been proposed to determine neutron capture cross sections for
Externí odkaz:
https://doaj.org/article/91b06c29ca444ef9aa4e1e567587ea24
Publikováno v:
EPJ Web of Conferences, Vol 113, p 03016 (2016)
The repulsive Coulomb force poses severe challenges when describing (d, p) reactions for highly charged nuclei as a three-body problem. Casting Faddeev-AGS equations in a Coulomb basis avoids introducing screening of the Coulomb force. However, momen
Externí odkaz:
https://doaj.org/article/74c196639c284349a725848d7de004fe
Autor:
Dreyfuss, A. C., Launey, K. D., Escher, J. E., Sargsyan, G. H., Baker, R. B., Dytrych, T., Draayer, J. P.
Publikováno v:
Phys. Rev. C 102, 044608 (2020)
We introduce a new framework for studying clustering and for calculating alpha partial widths using ab initio wave functions. We demonstrate the formalism for $^{20}$Ne, by calculating the overlap between the $^{16}$O$+\alpha$ cluster configuration a
Externí odkaz:
http://arxiv.org/abs/2006.11208
Autor:
Nichols A., Escher J., Krticka M., Choi H., Dashdorj D., Capote R., Belgya T., Basunia M.S., Szentmiklósi L., Revay Zs., Sleaford B.W., Summers N.C., Hurst A.M., Firestone R.B.
Publikováno v:
EPJ Web of Conferences, Vol 21, p 10005 (2012)
Thermal neutron-capture measurements of the stable tungsten isotopes have been carried out using the guided thermal-neutron beam at the Budapest Reactor. Prompt singles spectra were collected and analyzed using the HYPERMET γ-ray analysis software p
Externí odkaz:
https://doaj.org/article/ce48234d3d1f496597c221f1e4b6cb09
Autor:
Smith M.S., Pain S.D., Bardayan D.W., Escher J., Matei C., Wilhelmy J.B., Jandel M., Vieira D., Kozub R.L., Pittman S.T., Chae K.Y., Moazen B.H., Schmitt K., Jones K.L., OʼMalley P.D., Hatarik R., Cizewski J.A., Peters W.A.
Publikováno v:
EPJ Web of Conferences, Vol 2, p 06003 (2010)
The 75As(d,pγ) reaction in inverse kinematics as a surrogate for neutron capture was performed at Oak Ridge National Laboratory using a deuterated plastic target. The intensity of the 165 keV γ-ray from 76As in coincidence with ejected protons, fro
Externí odkaz:
https://doaj.org/article/6482cdf4c1d447538bab4e92c64f4d68