Zobrazeno 1 - 10
of 214
pro vyhledávání: '"GOLDBERG, V. Z."'
Autor:
Luo, Zifeng, Barbui, M., Bishop, J., Chubarian, G., Goldberg, V. Z., Harris, E., Koshchiy, E., Parker, C. E., Roosa, M., Saastamoinen, A., Scriven, D. P., Rogachev, G. V.
Publikováno v:
Phys. Rev. C 109, 025801 (2024)
Background: The triple-alpha process is a vital reaction in nuclear astrophysics, characterized by two consecutive reactions [$2\alpha\leftrightarrows{^{8}\rm{Be}}(\alpha,\gamma){^{12}\rm{C}}$] that drive carbon formation. The second reaction occurs
Externí odkaz:
http://arxiv.org/abs/2310.18475
Autor:
Barbui, M., Volya, A., Aboud, E., Ahn, S., Bishop, J., Goldberg, V. Z., Hooker, J., Hunt, C. H., Jayatissa, H., Kokalova, Tz., Koshchiy, E., Pirrie, S., Pollacco, E., Roeder, B. T., Saastamoinen, A., Upadhyayula, S., Wheldon, C., Rogachev, G. V.
In this work we study alpha-clustering in 18Ne and compare it with what is known about clustering in the mirror nucleus 18O. The excitation function of 18Ne was measured in inverse kinematics from the resonant elastic scattering reaction of 14O on 4H
Externí odkaz:
http://arxiv.org/abs/2206.10659
There is a deep astrophysical interest in the structure of $^{19}$F states close to the alpha decay threshold. The nuclear structure of these states is important for understanding of the development of $\alpha$ clustering in the $^{20}$Ne region. Eme
Externí odkaz:
http://arxiv.org/abs/2104.13987
Autor:
Hunt, C., Rogachev, G. V., Almaraz-Calderon, S., Aprahamian, A., Avila, M., Baby, L. T., Bucher, B., Goldberg, V. Z., Johnson, E. D., Kemper, K. W., Kuchera, A. N., Tan, W. P., Wiedenhover, I.
Publikováno v:
Phys. Rev. C 102, 014615 (2020)
Background: Resonance scattering has been extensively used to study the structure of exotic, neutron-deficient nuclei. Extension of the resonance scattering technique to neutron-rich nuclei was suggested more than 20 years ago. This development is ba
Externí odkaz:
http://arxiv.org/abs/2005.10962
Autor:
Goldberg, V. Z., Gazeeva, E. M., Golovkov, M. S., Bezbakh, A. A., Nauruzbayev, D. K., Nurmukhanbetova, A. K., Kurmanaliyev, Zh., Serikov, A., Zalewski, B., Rogachev, G. V.
Publikováno v:
Phys. Rev. Research 2, 032036 (2020)
We applied Thick Target Inverse Kinematics Method for a study of resonances decaying through neutron emission. As a test we used a well-studied, because of its role in s-process in stars, $^{13}$C($\alpha$; n) reaction. The observed energy resolution
Externí odkaz:
http://arxiv.org/abs/2002.07360
Autor:
Jayatissa, H., Rogachev, G. V., Goldberg, V. Z., Koshchiy, E., Christian, G., Hooker, J., Ota, S., Roeder, B. T., Saastamoinen, A., Trippella, O., Upadhyayula, S., Uberseder, E.
Publikováno v:
Phys. Lett. B, 802 (2020) 135267
The $^{22}$Ne($\alpha$,$\gamma$)$^{26}$Mg and $^{22}$Ne($\alpha$,n)$^{25}$Mg reactions play an important role in astrophysics because they have significant influence on the neutron flux during the weak branch of the s-process. We constrain the astrop
Externí odkaz:
http://arxiv.org/abs/2001.08316
Autor:
Nauruzbayev, D. K., Nurmukhanbetova, A. K., Goldberg, V. Z., La Cognata, M., Di Pietro, A., Figuera, P., Cherubini, S., Gulino, M., Lamia, L., Pizzone, R. G., Spart`a, R., Tumino, A., Serikov, A., Gazeeva, E. M.
The Thick Target Inverse Kinematic (TTIK) approach was used to measure excitation functions for the elastic 17O ({\alpha}, {\alpha}) scattering at the initial 17O beam energy of 54.4 MeV. We observed strong peaks corresponding to highly excited {\alp
Externí odkaz:
http://arxiv.org/abs/1910.08986
Autor:
Koshchiy, E., Rogachev, G. V., Pollacco, E., Ahn, S., Uberseder, E., Hooker, J., Bishop, J., Aboud, E., Barbui, M., Goldberg, V. Z., Hunt, C., Jayatissa, H., Magana, C., O'Dwyer, R., Roeder, B. T., Saastamoinen, A., Upadhyayula, S.
Publikováno v:
Nuclear Inst. and Methods in Physics Research, A 957 (2020) 163398
The TexAT (Texas Active Target) detector is a new active-target time projection chamber (TPC) that was built at the Cyclotron Institute Texas A$\&$M University. The detector is designed to be of general use for nuclear structure and nuclear astrophys
Externí odkaz:
http://arxiv.org/abs/1906.07845
Publikováno v:
Phys. Rev. C 100, 062802 (2019)
The first study of resonances in $^{17}$O+$\alpha$ elastic scattering was carried out using the Thick Target Inverse Kinematics (TTIK) method. The data were analyzed in the framework of an $\textit{R}$-matrix approach. Many $\alpha$-cluster states we
Externí odkaz:
http://arxiv.org/abs/1905.01461
Autor:
Hooker, J., Rogachev, G. V., Koshchiy, E., Ahn, S., Barbui, M., Goldberg, V. Z., Hunt, C., Jayatissa, H., Pollacco, E. C., Roeder, B. T., Saastamoinen, A., Upadhyayula, S.
Publikováno v:
Phys. Rev. C 100, 054618 (2019)
Background: Level structure of the most neutron deficient nucleon-bound carbon isotope, 9C, is not well known. Definitive spin-parity assignments are only available for two excited states. No positive parity states have been conclusively identified s
Externí odkaz:
http://arxiv.org/abs/1903.01402