Zobrazeno 1 - 10
of 201
pro vyhledávání: '"Lefebvre-Schuhl A."'
Autor:
Courtin S., Jiang C.L., Fruet G., Auranen K., Avila M.L., Ayangeakaa A.D., Back B.B., Bottoni S., Carpenter M., Dickerson C., DiGiovine B., Greene J.P., Henderson D.J., Hoffman C.R., Janssens R.V.F., Kay B.P., Kuvin S.A., Lauritsen T., Pardo R.C., Rehm K.E., Santiago-Gonzalez D., Sethi J., Seweryniak D., Talwar R., Ugalde C., Zhu S., Deibel C.M., Marley S.T., Bourgin D., Haas F., Heine M., Montanari D., Jenkins D.G., Morris L.G., Lefebvre-Schuhl A., Almaraz-Calderon S., Fang X., Tang X.D., Alcorta M., Bucher B., Albers M., Bertone P.
Publikováno v:
EPJ Web of Conferences, Vol 163, p 00011 (2017)
Carbon burning plays a crucial role in stellar evolution, where this reaction is an important route for the production of heavier elements. A particle-γ coincidence technique that minimizes the backgrounds to which this reaction is subject and provi
Externí odkaz:
https://doaj.org/article/dc80a73841c94ccf888962ad6fe26798
Autor:
Courtin S., Jiang C.L., Fruet G., Heine M., Jenkins D.G., Adsley P., Morris L.G., Regan P.H., Rudigier M., Montanari D., Della Negra S., de Séréville N., Haas F., Hammache F., Kirsebom O.S., Lesrel J., Meyer A., Auranen K., Avila M.L., Ayangeakaa A.D., Back B.B., Bottoni S., Carpenter M., Dickerson C., DiGiovine B., Greene J.P., Henderson D.J., Hoffman C.R., Janssens R.V.F., Kay B.P., Kuvin S.A., Lauritsen T., Pardo R.C., Rehm K.E., Santiago-Gonzalez D., Sethi J., Seweryniak D., Talwar R., Ugalde C., Zhu S., Deibel C.M., Marley S.T., Bourgin D., Stodel C., Lefebvre-Schuhl A., Almaraz-Calderon S., Fang X., Tang X.D., Alcorta M., Bucher B., Albers M., Bertone P.
Publikováno v:
EPJ Web of Conferences, Vol 165, p 01015 (2017)
The 12C+12C fusion reaction is one of the most important for nuclear astrophysics since it determines the carbon ignition in stellar environments. Two experiments which make use of the gamma-particle coincidence technique to measure the 12C+12C S-fac
Externí odkaz:
https://doaj.org/article/c1a7de0eea994f58a2c116282c7dd7e6
Autor:
Santiago-Gonzalez D., Jiang C.L., Rehm K.E., Alcorta M., Almaraz-Calderon S., Avila M.L., Ayangeakaa A.D., Back B.B., Bourgin D., Bucher B., Carpenter M.P., Courtin S., David H.M., Deibel C.M., Dickerson C., DiGiovine B., Fang X., Greene J.P., Haas F., Henderson D.J., Janssens R.V.F., Jenkins D., Lai J., Lauritsen T., Lefebvre-Schuhl A., Montanari D., Pardo R.C., Paul M., Seweryniak D., Tang X.D., Ugalde C., Zhu S.
Publikováno v:
EPJ Web of Conferences, Vol 117, p 09011 (2016)
The cross section of the 12C+12C fusion reaction at low energies is of paramount importance for models of stellar nucleosynthesis in different astrophysical scenarios, such as Type Ia supernovae and Xray superbursts, where this reaction is a primary
Externí odkaz:
https://doaj.org/article/db30609c617b4732965d380f9c6a4d61
Autor:
Riley, J. E., Laird, A. M., de Séréville, N., Parikh, A., Fox, S. P., Hammache, F., Stefan, I., Adsley, P., Assié, M., Bastin, B., Boulay, F., Coc, A., Franchoo, S., Garg, R., Gillespie, S. A., Guimaraes, V., Hamadache, C., Hubbard, N., Kiener, J., Lefebvre-Schuhl, A., Santos, F. de Oliveira, Remadi, A., Perrot, L., Suzuki, D., Verde, G., Tatischeff, V., Williams, M.
Classical novae result from thermonuclear explosions producing several $\gamma$-ray emitters which are prime targets for satellites observing in the MeV range. The early 511 keV gamma-ray emission depends critically on the $^{18}$F(p,$\alpha$)$^{15}$
Externí odkaz:
http://arxiv.org/abs/2011.13222
Autor:
Adsley, P., Hammache, F., de Séréville, N., Alcindor, V., é, M. Assi, Chabot, D. Beaumel M., Degerlier, M., Delafosse, C., Faestermann, T., Flavigny, F., Fox, S. P., Garg, R., Georgiadou, A., Gillespie, S. A., Guillot, J., Hertenberger, R., Guimarães, V., Gottardo, A., Kiener, J., Laird, A. M., Lefebvre-Schuhl, A., Matea, I., Meyer, A., Mahgoub, M., Olivier, L., Perrot, L., Riley, J., Sivacek, I., Stefan, I., Tatischeff, V., Wirth, H. -F.
Publikováno v:
Phys. Rev. C 103, 035804 (2021)
Spatially-correlated overabundances of $^{15}$N and $^{18}$O observed in some low-density graphite meteoritic grains have been connected to nucleosynthesis taking place in the helium-burning shell during core-collapse supernovae. Two of the reactions
Externí odkaz:
http://arxiv.org/abs/2007.03965
Autor:
Meyer, A., de Séréville, N., Laird, A. M., Hammache, F., Longland, R., Lawson, T., Pignatari, M., Audouin, L., Beaumel, D., Fortier, S., Kiener, J., Lefebvre-Schuhl, A., Pellegriti, M. G., Stanoiu, M., Tatischeff, V.
Publikováno v:
Phys. Rev. C 102, 035803 (2020)
It has been suggested that hydrogen ingestion into the helium shell of massive stars could lead to high $^{13}$C and $^{15}$N excesses when the shock of a core-collapse supernova passes through its helium shell. This prediction questions the origin o
Externí odkaz:
http://arxiv.org/abs/2006.13589
Autor:
Adsley, P., Hammache, F., de Séréville, N., Assié, M., Beaumel, D., Chabot, M., Degerlier, M., Delafosse, C., Flavigny, F., Georgiadou, A., Guillot, J., Guimarães, V., Gottardo, A., Matea, I., Olivier, L., Perrot, L., Stefan, I., Laird, A., Fox, S. P., Garg, R., Gillespie, S., Riley, J., Kiener, J., Lefebvre-Schuhl, A., Tatischeff, V., Sivacek, I.
Neutron-capture reactions on $^{18}$F in the helium-burning shell play an important role in the production of $^{15}$N during core-collapse supernovae. The competition between the $^{18}$F($n,p/\alpha$)$^{18}$O/$^{15}$N reactions controls the amount
Externí odkaz:
http://arxiv.org/abs/1809.04357
Autor:
Belhout, A., Ouichaoui, S., Beaumevieille, H., Bouchemha, A., Bogaert, G., Fortier, S., Kiener, J., Lefebvre-Schuhl, A., Maison, J. M., Rosier, L., Rotbard, J., Tatischeff, V., Thibaud, J. P., Vernotte, J.
The angular distributions of $^{8}$Be states in the excitation energy region, E$_{x}$ $\ \sim$($16.5-18.2$) MeV, produced in the $^{7}$Li($^{3}% $He,d)$^{8}$Be proton transfer reaction have been measured at the Orsay 14.8$-$MV tandem accelerator for
Externí odkaz:
http://arxiv.org/abs/1709.05482
Autor:
De Grancey, F., Mercenne, A., Santos, F. de Oliveira, Davinson, T., Sorlin, O., Angélique, J. C., Assié, M., Berthoumieux, E., Borcea, R., Buta, A., Celikovic, I., Chudoba, V., Daugas, J. M., Dumitru, G., Fadil, M., Grévy, S., Kiener, J., Lefebvre-Schuhl, A., Michel, N., Mrazek, J., Negoita, F., Okolowicz, J., Pantelica, D., Pellegriti, M. G., Perrot, L., Ploszajczak, M., Randisi, G., Ray, I., Roig, O., Rotaru, F., Laurent, M. G. Saint, Smirnova, N., Stanoiu, M., Stefan, I., Stodel, C., Subotic, K., Tatischeff, V., Thomas, J. C., Ujic, P., Wolski, R.
Intense and purified radioactive beam of post-accelerated $^{14}$O was used to study the low-lying states in the unbound $^{15}$F nucleus. Exploiting resonant elastic scattering in inverse kinematics with a thick target, the second excited state, a r
Externí odkaz:
http://arxiv.org/abs/1603.00436
Autor:
Stefan, I., Santos, F. de Oliveira, Sorlin, O., Davinson, T., Lewitowicz, M., Dumitru, G., Angélique, J. C., Angélique, M., Berthoumieux, E., Borcea, C., Borcea, R., Buta, A., Daugas, J. M., De Grancey, F., Fadil, M., Grévy, S., Kiener, J., Lefebvre-Schuhl, A., Lenhardt, M., Mrazek, J., Negoita, F., Pantelica, D., Pellegriti, M. G., Perrot, L., Ploszajczak, M., Roig, O., Laurent, M. G. Saint, Ray, I., Stanoiu, M., Stodel, C., Tatischeff, V., Thomas, J. C.
Publikováno v:
Physical Review C 90 (2014) 014307
Radioactive beams of $^{14}$O and $^{15}$O were used to populate the resonant states 1/2$^+$, 5/2$^+$ and $0^-,1^-,2^-$ in the unbound $^{15}$F and $^{16}$F nuclei respectively by means of proton elastic scattering reactions in inverse kinematics. Ba
Externí odkaz:
http://arxiv.org/abs/1406.3610