Zobrazeno 1 - 10
of 199
pro vyhledávání: '"LIMATA B"'
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:
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:
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
Autor:
LeBlanc, P. J., Imbriani, G., Goerres, J., Junker, M., Azuma, R., Beard, M., Bemmerer, D., Best, A., Broggini, C., Caciolli, A., Corvisiero, P., Costantini, H., Couder, M., deBoer, R., Elekes, Z., Falahat, S., Formicola, A., Fulop, Zs., Gervino, G., Guglielmetti, A., Gustavino, C., Gyurky, Gy., Kaeppeler, F., Kontos, A., Kuntz, R., Leiste, H., Lemut, A., Li, Q., Limata, B., Marta, M., Mazzocchi, C., Menegazzo, R., O'Brien, S., Palumbo, A., Prati, P., Roca, V., Rolfs, C., Alvarez, C. Rossi, Somorjai, E., Stech, E., Straniero, O., Strieder, F., Tan, W., Terrasi, F., Trautvetter, H. P., Uberseder, E., Wiescher, M.
Publikováno v:
Phys.Rev.C82:055804,2010; Erratum-ibid.C84:019902,2011
The 15N(p,g)16O reaction represents a break out reaction linking the first and second cycle of the CNO cycles redistributing the carbon and nitrogen abundances into the oxygen range. The reaction is dominated by two broad resonances at Ep = 338 keV a
Externí odkaz:
http://arxiv.org/abs/1011.2518
Autor:
Limata, B., Strieder, F., Formicola, A., Imbriani, G., Junker, M., Becker, H. W., Bemmerer, D., Best, A., Bonetti, R., 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, Salvo, C., Somorjai, E., Straniero, O., Terrasi, F., Trautvetter, H. -P.
Publikováno v:
Phys.Rev.C82:015801,2010
Proton captures on Mg isotopes play an important role in the Mg-Al cycle active in stellar H shell burning. In particular, the strengths of low-energy resonances with E < 200 keV in 25Mg(p,gamma)26Al determine the production of 26Al and a precise kno
Externí odkaz:
http://arxiv.org/abs/1006.5281
Autor:
Bemmerer, D, Caciolli, A, Bonetti, R, Broggini, C, Confortola, F, Corvisiero, P, Costantini, H, Elekes, Z, Formicola, A, Fulop, Zs, Gervino, G, Guglielmetti, A, Gustavino, C, Gyurky, Gy, Junker, M, Limata, B, Marta, M, Menegazzo, R, Prati, P, Roca, V, Rolfs, C, Alvarez, C Rossi, Somorjai, E, Straniero, O
Publikováno v:
J.Phys.G36:045202,2009
The 15N(p,gamma)16O reaction controls the passage of nucleosynthetic material from the first to the second carbon-nitrogen-oxygen (CNO) cycle. A direct measurement of the total 15N(p,gamma)16O cross section at energies corresponding to hydrogen burni
Externí odkaz:
http://arxiv.org/abs/0902.0783
Autor:
Caciolli, A., Agostino, L., Bemmerer, D., Bonetti, R., Broggini, C., Confortola, F., Corvisiero, P., Costantini, H., Elekes, Z., Formicola, A., Fulop, Zs., Gervino, G., Guglielmetti, A., Gustavino, C., Gyurky, Gy., Imbriani, G., Junker, M., Laubenstein, M., Lemut, A., Limata, B., Marta, M., Mazzocchi, C., Menegazzo, R., Prati, P., Roca, V., Rolfs, C., Alvarez, C. Rossi, Somorjai, E., Straniero, O., Strieder, F., Terrasi, F., Trautvetter, H. P.
Publikováno v:
Eur. Phys. J. A 39, 179 (2009)
Ultra-sensitive in-beam gamma-ray spectroscopy studies for nuclear astrophysics are performed at the LUNA (Laboratory for Underground Nuclear Astrophysics) 400 kV accelerator, deep underground in Italy's Gran Sasso laboratory. By virtue of a speciall
Externí odkaz:
http://arxiv.org/abs/0812.3223
Autor:
Costantini, H., Bemmerer, D., Confortola, F., Formicola, A., Gyürky, Gy., Bezzon, P., Bonetti, R., Broggini, C., Corvisiero, P., Elekes, Z., Fülöp, Zs., Gervino, G., Guglielmetti, A., Gustavino, C., Imbriani, G., Junker, M., Laubenstein, M., Lemut, A., Limata, B., Lozza, V., Marta, M., Menegazzo, R., Prati, P., Roca, V., Rolfs, C., Alvarez, C. Rossi, Somorjai, E., Straniero, O., Strieder, F., Terrasi, F., Trautvetter, H. P.
Publikováno v:
Nucl.Phys.A814:144-158,2008
The 3He(alpha,gamma)7Be process is a key reaction in both Big-Bang nucleosynthesis and p-p chain of Hydrogen Burning in Stars. A new measurement of the 3He(alpha,gamma)7Be cross section has been performed at the INFN Gran Sasso underground laboratory
Externí odkaz:
http://arxiv.org/abs/0809.5269
Autor:
Marta, M., Formicola, A., Gyurky, Gy., Bemmerer, D., Broggini, C., Caciolli, A., Corvisiero, P., Costantini, H., Elekes, Z., Fulop, Zs., Gervino, G., Guglielmetti, A., Gustavino, C., Imbriani, G., Junker, M., Kunz, R., Lemut, A., Limata, B., Mazzocchi, C., Menegazzo, R., Prati, P., Roca, V., Rolfs, C., Romano, M., Alvarez, C. Rossi, Somorjai, E., Straniero, O., Strieder, F., Terrasi, F., Trautvetter, H. P., Vomiero, A.
Publikováno v:
Phys.Rev.C78:022802,2008
The rate of the hydrogen-burning carbon-nitrogen-oxygen (CNO) cycle is controlled by the slowest process, 14N(p,gamma)15O, which proceeds by capture to the ground and several excited states in 15O. Previous extrapolations for the ground state contrib
Externí odkaz:
http://arxiv.org/abs/0807.4919
Autor:
Formicola, A., Best, A., Imbriani, G., Junker, M., Bemmerer, D., Bonetti, R., Broggini, C., Caciolli, A., Confortola, F., Corvisiero, P., Costantini, H., Elekes, Z., Fulop, Zs, Gervino, G., Guglielmetti, A., Gyurky, Gy, Gustavino, C., Lemut, A., Limata, B., Marta, M., Mazzocchi, C., Menegazzo, R., Prati, P., Roca, V., Rolfs, C., Alvarez, C. Rossi, Somorjai, E., Straniero, O., Strieder, F., Terrasi, F., Trautvetter, H. P.
Publikováno v:
J.Phys.G35:014013,2008
The COMPTEL instrument performed the first mapping of the 1.809 MeV photons in the Galaxy, triggering considerable interest in determing the sources of interstellar 26Al. The predicted 26Al is too low compared to the observation, for a better underst
Externí odkaz:
http://arxiv.org/abs/0710.4206