Zobrazeno 1 - 10
of 1 730
pro vyhledávání: '"ROCA, V."'
Autor:
Di Leva, A., Imbriani, G., Buompane, R., Gialanella, L., Best, A., Cristallo, S., De Cesare, M., D'Onofrio, A., Duarte, J. G., Gasques, L. R., Morales-Gallegos, L., Pezzella, A., Porzio, G., Rapagnani, D., Roca, V., Romoli, M., Schürmann, D., Straniero, O., Terrasi, F.
The origin of fluorine is a widely debated issue. Nevertheless, the ^{15}N({\alpha},{\gamma})^{19}F reaction is a common feature among the various production channels so far proposed. Its reaction rate at relevant temperatures is determined by a numb
Externí odkaz:
http://arxiv.org/abs/1704.03087
Autor:
Best, A., Caciolli, A., Fülöp, Zs., Gyürky, Gy., Laubenstein, M., Napolitani, E., Rigato, V., Roca, V., Szücs, T.
Publikováno v:
Eur. Phys. J. A (2016) 52: 72
The goal of nuclear astrophysics is to measure cross sections of nuclear physics reactions of interest in astrophysics. At stars temperatures, these cross sections are very low due to the suppression of the Coulomb barrier. Cosmic ray induced backgro
Externí odkaz:
http://arxiv.org/abs/1601.00188
Publikováno v:
In Construction and Building Materials 25 January 2021 268
Autor:
Ojeda-Durán, E., Monfil-Leyva, K., Andrade-Arvizu, J., Becerril-Romero, I., Sánchez, Y., Fonoll-Rubio, R., Guc, M., Jehl, Z., Luna-López, J.A., Muñoz-Zurita, A.L., Hernández-de la Luz, J.A.D., Izquierdo-Roca, V., Placidi, M., Saucedo, E.
Publikováno v:
In Solar Energy 1 March 2020 198:696-703
Impact of a revised $^{25}$Mg(p,$\gamma$)$^{26}$Al reaction rate on the operation of the Mg-Al cycle
Autor:
Straniero, O., Imbriani, G., Strieder, F., Bemmerer, D., Broggini, C., Caciolli, A., Corvisiero, P., Costantini, H., Cristallo, S., DiLeva, A., Formicola, A., Elekes, Z., Fülöp, Zs., Gervino, G., Guglielmetti, A., Gustavino, C., Gyürky, Gy., Junker, M., Lemut, A., Limata, B., Marta, M., Mazzocchi, C., Menegazzo, R., Piersanti, L., Prati, P., Roca, V., Rolfs, C., Alvarez, C. Rossi, Somorjai, E., Terrasi, F., Trautvetter, H. P.
Proton captures on Mg isotopes play an important role in the Mg-Al cycle active in stellar H-burning regions. In particular, low-energy nuclear resonances in the $^{25}$Mg(p,$\gamma$)$^{26}$Al reaction affect the production of radioactive $^{26}$Al$^
Externí odkaz:
http://arxiv.org/abs/1211.6661
Autor:
Scott, D. A., Caciolli, A., DiLeva, A., Formicola, A., Aliotta, M., Anders, M., Bemmerer, D., Broggini, C., Campeggio, M., Corvisiero, P., Elekes, Z., Fülöp, Zs., Gervino, G., Guglielmetti, A., Gustavino, C., Gyürky, Gy., Imbriani, G., Junker, M., Laubenstein, M., Menegazzo, R., Marta, M., Napolitani, E., Prati, P., Rigato, V., Roca, V., Somorjai, E., Salvo, C., Straniero, O., Strieder, F., Szücs, T., Terrasi, F., Trezzi, D.
Publikováno v:
Phys. Rev. Lett. 109, 202501 (2012)
Classical novae are important contributors to the abundances of key isotopes, such as the radioactive ^{18}F, whose observation by satellite missions could provide constraints on nucleosynthesis models in novae. The ^{17}O(p,\gamma)^{18}F reaction pl
Externí odkaz:
http://arxiv.org/abs/1210.6529
Autor:
Caciolli, A., Scott, D. A., Di Leva, A., Formicola, A., Aliotta, M., Anders, M., Bellini, A., Bemmerer, D., Broggini, C., Campeggio, M., Corvisiero, P., Depalo, R., Elekes, Z., Fülöp, Zs., Gervino, G., Guglielmetti, A., Gustavino, C., Gyürky, Gy., Imbriani, G., Junker, M., Marta, M., Menegazzo, R., Napolitani, E., Prati, P., Rigato, V., Roca, V., Rolfs, C., Alvarez, C. Rossi, Somorjai, E., Salvo, C., Straniero, O., Strieder, F., Szücs, T., Terrasi, F., Trautvetter, H. P., Trezzi, D.
Publikováno v:
Eur. Phys. J. A (2012) 48:144
The direct measurement of reaction cross sections at astrophysical energies often requires the use of solid targets of known thickness, isotopic composition, and stoichiometry that are able to withstand high beam currents for extended periods of time
Externí odkaz:
http://arxiv.org/abs/1210.0327
Autor:
LUNA Collaboration, Strieder, F., Limata, B., Formicola, A., Imbriani, G., Junker, M., Bemmerer, D., Best, A., Broggini, C., Caciolli, A., Corvisiero, P., Costantini, H., DiLeva, A., Elekes, Z., Fülöp, Zs., Gervino, G., Guglielmetti, A., Gustavino, C., Gyürky, Gy., Lemut, A., Marta, M., Mazzocchi, C., Menegazzo, R., Prati, P., Roca, V., Rolfs, C., Alvarez, C. Rossi, Somorjai, E., Straniero, O., Terrasi, F., Trautvetter, H. P.
Publikováno v:
Phys. Lett. B 707 (2012) 60
In the present work we report on a new measurement of resonance strengths in the reaction 25Mg(p,gamma)26Al at E_cm= 92 and 189 keV. This study was performed at the LUNA facility in the Gran Sasso underground laboratory using a 4pi BGO summing crysta
Externí odkaz:
http://arxiv.org/abs/1112.3313
Autor:
Caciolli, A., Mazzocchi, C., Capogrosso, V., Bemmerer, D., Broggini, C., Corvisiero, P., Costantini, H., Elekes, Z., Formicola, A., Fulop, Zs., Gervino, G., Guglielmetti, A., Gustavino, C., Gyurky, Gy., Imbriani, G., Junker, M., Lemut, A., Marta, M., Menegazzo, R., Palmerini, S., Prati, P., Roca, V., Rolfs, C., Alvarez, C. Rossi, Somorjai, E., Straniero, O., Strieder, F., Terrasi, F., Trautvetter, H. P., Vomiero, A.
Publikováno v:
A&A 533 (2011) A66
The NO cycle takes place in the deepest layer of a H-burning core or shell, when the temperature exceeds T {\simeq} 30 {\cdot} 106 K. The O depletion observed in some globular cluster giant stars, always associated with a Na enhancement, may be due t
Externí odkaz:
http://arxiv.org/abs/1107.4514
Autor:
Marta, M., Formicola, A., Bemmerer, D., Broggini, C., Caciolli, A., Corvisiero, P., Costantini, H., Elekes, Z., Fulop, Zs., Gervino, G., Guglielmetti, A., Gustavino, C., Gyurky, Gy., Imbriani, G., Junker, M., Lemut, A., Limata, B., Mazzocchi, C., Menegazzo, R., Prati, P., Roca, V., Rolfs, C., Alvarez, C. Rossi, Somorjai, E., Straniero, O., Strieder, F., Terrasi, F., Trautvetter, H. P., Vomiero, A.
Publikováno v:
Phys.Rev.C83:045804,2011
The rate of the carbon-nitrogen-oxygen (CNO) cycle of hydrogen burning is controlled by the 14N(p,gamma)15O reaction. The reaction proceeds by capture to the ground states and several excited states in O-15. In order to obtain a reliable extrapolatio
Externí odkaz:
http://arxiv.org/abs/1103.5393