Zobrazeno 1 - 10
of 215
pro vyhledávání: '"Pardo, R C"'
Autor:
Avila, M. L., Rehm, K. E., Almaraz-Calderon, S., Ayangeakaa, A. D., Dickerson, C., Hoffman, C. R., Jiang, C. L., Kay, B. P., Lai, J., Nusair, O., Pardo, R. C., Santiago-Gonzalez, D., Talwar, R., Ugalde, C.
Publikováno v:
Phys. Rev. C 94, 065804 (2016)
The $^{23}$Na$(\alpha,p)^{26}$Mg and $^{23}$Na$(\alpha,n)^{26}$Al reactions are important for our understanding of the $^{26}$Al abundance in massive stars. The aim of this work is to report on a direct and simultaneous measurement of these astrophys
Externí odkaz:
http://arxiv.org/abs/1608.03292
Autor:
Avila, M. L., Rehm, K. E., Almaraz-Calderon, S., Ayangeakaa, A. D., Dickerson, C., Hoffman, C. R., Jiang, C. L., Kay, B. P., Lai, J., Nusair, O., Pardo, R. C., Santiago-Gonzalez, D., Talwar, R., Ugalde, C.
A large number of $(\alpha,p)$ and $(\alpha,n)$ reactions are known to play a fundamental role in nuclear astrophysics. This work presents a novel technique to study these reactions with the active target system MUSIC whose segmented anode allows the
Externí odkaz:
http://arxiv.org/abs/1608.03290
Autor:
Bucher, B., Zhu, S., Wu, C. Y., Janssens, R. V. F., Cline, D., Hayes, A. B., Albers, M., Ayangeakaa, A. D., Butler, P. A., Campbell, C. M., Carpenter, M. P., Chiara, C. J., Clark, J. A., Crawford, H. L., Cromaz, M., David, H. M., Dickerson, C., Gregor, E. T., Harker, J., Hoffman, C. R., Kay, B. P., Kondev, F. G., Korichi, A., Lauritsen, T., Macchiavelli, A. O., Pardo, R. C., Richard, A., Riley, M. A., Savard, G., Scheck, M., Seweryniak, D., Smith, M. K., Vondrasek, R., Wiens, A.
Publikováno v:
Phys. Rev. Lett. 116, 112503 (2016)
The neutron-rich nucleus $^{144}$Ba ($t_{1/2}$=11.5 s) is expected to exhibit some of the strongest octupole correlations among nuclei with mass numbers $A$ less than 200. Until now, indirect evidence for such strong correlations has been inferred fr
Externí odkaz:
http://arxiv.org/abs/1602.01485
Autor:
Mumm, H. P., Huber, M. G., Bauder, W., Abrams, N., Deibel, C. M., Huffer, C. R., Huffman, P. R., Schelhammer, K. W., Swank, C. M., Janssens, R., Jiang, C. L., Scott, R. H., Pardo, R. C., Rehm, K. E., Vondrasek, R., O'Shaughnessy, C. M., Paul, M., Yang, L.
Publikováno v:
Phys. Rev. C 93, 065502 (2016)
Research efforts ranging from studies of solid helium to searches for a neutron electric dipole moment require isotopically purified helium with a ratio of 3He to 4He at levels below that which can be measured using traditional mass spectroscopy tech
Externí odkaz:
http://arxiv.org/abs/1512.09351
Autor:
Paul M., Sahoo R. N., Tessler M., Jeet J., Velsko C., Zylstra A., Avila M., Dickerson C., Fougères C., Jayatissa H., Pardo R. C., Rehm K. E., Scott R., Tolstukhin I., Vondrasek R., Bailey T., Callahan L., Clark A. M., Collon P., Kashiv Y., Nelson A., Köster U., Hoffmann H. F. R., Pichotta M., Zuber K., Döring T., Schwengner R.
Publikováno v:
EPJ Web of Conferences, Vol 279, p 13004 (2023)
The thermodynamical conditions and the neutron density produced in a laser-induced implosion of a deuterium-tritium (DT) filled capsule at the National Ignition Facility (NIF) are the closest laboratory analog of stellar conditions. We plan to invest
Externí odkaz:
https://doaj.org/article/e041bed60cd8418ea791b3e1c9f001c3
Autor:
Kinoshita, N., Paul, M., Kashiv, Y., Collon, P., Deibel, C. M., DiGiovine, B., Greene, J. P., Henderson, D. J., Jiang, C. L., Marley, S. T., Nakanishi, T., Pardo, R. C., Rehm, K. E., Robertson, D., Scott, R., Schmitt, C., Tang, X. D., Vondrasek, R., Yokoyama, A.
Publikováno v:
Science 335, 1614 (2012)
The extinct p-process nuclide 146Sm serves as an astrophysical and geochemical chronometer through measurements of isotopic anomalies of its alpha-decay daughter 142Nd. Based on analyses of 146Sm/147Sm alpha-activity and atom ratios, we determined th
Externí odkaz:
http://arxiv.org/abs/1109.4805
Autor:
Alcorta, M., Rehm, K. E., Back, B. B., Bedoor, S., Bertone, P. F., Deibel, C. M., DiGiovine, B., Esbensen, H., Greene, J. P., Hoffmann, C. R., Jiang, C. L., Lighthall, J. C., Marley, S. T., Pardo, R. C., Paul, M., Rogers, A. M., Ugalde, C., Wuosmaa, A. H.
Publikováno v:
Phys.Rev.Lett.106:172701,2011
The structure of 15C, with an s1/2 neutron weakly bound to a closed-neutron shell nucleus 14C, makes it a prime candidate for a one-neutron halo nucleus. We have for the first time studied the cross section for the fusion-fission reaction 15C + 232Th
Externí odkaz:
http://arxiv.org/abs/1104.1169
Autor:
Nassar, H., Paul, M., Ahmad, I., Ben-Dov, Y., Caggiano, J., Ghelberg, S., Goriely, S., Greene, J. P., Hass, M., Heger, A., Heinz, A., Henderson, D. J., Janssens, R. V. F., Jiang, C. L., Kashiv, Y., Singh, B. S. Nara, Ofan, A., Pardo, R. C., Pennington, T., Rehm, K. E., Savard, G., Scott, R., Vondrasek, R.
Publikováno v:
Phys.Rev.Lett. 96 (2006) 041102
The 44Ti(t1/2 = 59 y) nuclide, an important signature of supernova nucleosynthesis, has recently been observed as live radioactivity by gamma-ray astronomy from the Cas A remnant. We investigate in the laboratory the major 44Ti production reaction, 4
Externí odkaz:
http://arxiv.org/abs/nucl-ex/0509006
Autor:
Jiang, C. L., Rehm, K. E., Esbensen, H., Janssens, R. V. F., Back, B. B., Collon, P., Davids, C. N., Greene, J. P., Henderson, D. J., Lister, C. J., Kurtz, S., Pardo, R. C., Pennington, T., Paul, M., Peterson, D., Seweryniak, D., Shumard, B., Sinha, S., Tang, X. D., Tanihata, I., Zhu, S.
Publikováno v:
Phys.Rev. C71 (2005) 044613
The excitation function for the fusion-evaporation reaction 64Ni+100Mo has been measured down to a cross-section of ~5 nb. Extensive coupled-channels calculations have been performed, which cannot reproduce the steep fall-off of the excitation functi
Externí odkaz:
http://arxiv.org/abs/nucl-ex/0412043
Autor:
Wang, L. -B., Mueller, P., Bailey, K., Drake, G. W. F., Greene, J. P., Henderson, D., Holt, R. J., Janssens, R. V. F., Jiang, C. L., Lu, Z. -T., O'Connor, T. P., Pardo, R. C., Rehm, K. E., Schiffer, J. P., Tang, X. D.
Publikováno v:
Phys.Rev.Lett.93:142501,2004
We have performed precision laser spectroscopy on individual 6He (t1/2 = 0.8 s) atoms confined and cooled in a magneto-optical trap, and measured the isotope shift between 6He and 4He to be 43,194.772 +/- 0.056 MHz for the 2 3S1 - 3 3P2 transition. B
Externí odkaz:
http://arxiv.org/abs/nucl-ex/0408008