Zobrazeno 1 - 10 of 11 pro vyhledávání: '"D J, Mountford"'
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A direct measurement of the 17O(a,g)21Ne reaction in inverse kinematics and its impact on heavy element production
Autor: L. Buchmann, B. R. Fulton, N. Galinski, Jennifer Fallis, A. Chen, Jun Chen, B. Davids, C. Akers, S. Sjue, Uwe Greife, D. J. Mountford, S. Reeve, M. Williams, D. A. Hutcheon, C. Davis, L. Erikson, Marco Pignatari, Götz Ruprecht, Raphael Hirschi, Kelly Chipps, D. Howell, L. Martin, Chris Ruiz, D.F. Ottewell, M. Taggart, Urs Frischknecht, Laurelle Veloce, J. R. Brown, C. Aa. Diget, U. Hager, Arthur Choplin, Alison Laird, John D'Auria, S. P. Fox, M. A. Bentley, A. St. J. Murphy
Publikováno v: Taggart, M P, Akers, C, Laird, A M, Hager, U, Ruiz, C, Hutcheon, D A, Bentley, M A, Brown, J R, Buchmann, L, Chen, A A, Chen, J, Chipps, K A, Choplin, A, D'Auria, J M, Davids, B, Davis, C, Diget, C A, Erikson, L, Fallis, J, Fox, S P, Frischknecht, U, Fulton, B R, Galinski, N, Greife, U, Hirschi, R, Howell, D, Martin, L, Mountford, D, Murphy, A S J, Ottewell, D, Pignatari, M, Reeve, S, Ruprecht, G, Sjue, S, Veloce, L & Williams, M 2019, ' A direct measurement of the 17O(a,g)21Ne reaction in inverse kinematics and its impact on heavy element production ', Physics Letters B, vol. 798 . https://doi.org/10.1016/j.physletb.2019.134894, https://doi.org/10.1016/j.physletb.2019.134894
Physics Letters B, Vol 798, Iss, Pp-(2019)
During the slow neutron capture process in massive stars, reactions on light elements can both produce and absorb neutrons thereby influencing the final heavy element abundances. At low metallicities, the high neutron capture rate of 16-O can inhibit
Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::c1c47f576749b9c6a3ad52b1f28477d4
http://arxiv.org/abs/1910.00870
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3
Evaluation of the implementation of the R-matrix formalism with reference to the astrophysically important 18F(p,α)15O reaction
Autor: Ethan Uberseder, D. J. Mountford, Michael Wiescher, A. St. J. Murphy, Pierre Descouvemont, Richard deBoer
Publikováno v: Nuclear Instruments and Methods in Physics Research Section A: Accelerators, Spectrometers, Detectors and Associated Equipment. 767:359-363
Background. The R-Matrix formalism is a crucial tool in the study of nuclear astrophysics reactions, and many codes have been written to implement the relevant mathematics. One such code makes use of Visual Basic macros. A further open-source code, A
Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::ebc2ccf03c6794ef85b915d17cd9f284
https://doi.org/10.1016/j.nima.2014.08.047
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4
Study of the Ti44(α,p)V47 reaction and implications for core collapse supernovae
Autor: Thierry Stora, D. J. Mountford, Gavin Lotay, T. Davinson, V. Margerin, Charles Wang, Alison Laird, Dorothea Schumann, Anu Kankainen, A. St. J. Murphy, Rugard Dressler, T. Stowasser, Jennifer Fallis, P. J. Woods, C. Seiffert, C. D. Murphy
Publikováno v: Physics Letters B. 731:358-361
The underlying physics triggering core collapse supernovae is not fully understood but observations of material ejected during such events helps to solve this puzzle. In particular, several satellite based γ-ray observations of the isotope 44Ti have
Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::a911392b510e4060ac928dd41c25d605
https://doi.org/10.1016/j.physletb.2014.03.003
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5
Inverse Kinematic Study of theAl26g(d,p)Al27Reaction and Implications for Destruction ofAl26in Wolf-Rayet and Asymptotic Giant Branch Stars
Autor: Jennifer Fallis, Philip Woods, J. A. Tostevin, A. Rojas, G. Christian, Barry Davids, D. T. Doherty, Gavin Lotay, Chris Ruiz, V. Margerin, Thomas Davinson, D. Howell, D. J. Mountford, Marialuisa Aliotta, Oliver S. Kirsebom
Publikováno v: Physical Review Letters. 115
In Wolf-Rayet and asymptotic giant branch (AGB) stars, the (26g)Al(p,γ)(27)Si reaction is expected to govern the destruction of the cosmic γ-ray emitting nucleus (26)Al. The rate of this reaction, however, is highly uncertain due to the unknown pro
Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::23dfd52f7c1050edb0fedf0a7926b267
https://doi.org/10.1103/physrevlett.115.062701
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6
Inverse Kinematic Study of the (26g)Al(d,p)(27)Al Reaction and Implications for Destruction of (26)Al in Wolf-Rayet and Asymptotic Giant Branch Stars
Autor: V, Margerin, G, Lotay, P J, Woods, M, Aliotta, G, Christian, B, Davids, T, Davinson, D T, Doherty, J, Fallis, D, Howell, O S, Kirsebom, D J, Mountford, A, Rojas, C, Ruiz, J A, Tostevin
Publikováno v: Physical review letters. 115(6)
In Wolf-Rayet and asymptotic giant branch (AGB) stars, the (26g)Al(p,γ)(27)Si reaction is expected to govern the destruction of the cosmic γ-ray emitting nucleus (26)Al. The rate of this reaction, however, is highly uncertain due to the unknown pro
Externí odkaz: https://explore.openaire.eu/search/publication?articleId=pmid________::4bdda148032a8458f3c8893e88b2ef8e
https://pubmed.ncbi.nlm.nih.gov/26296114
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7
Isγ-Ray Emission from Novae Affected by Interference Effects in theF18(p,α)O15Reaction?
Autor: Ralf Hertenberger, T. Faestermann, Richard Longland, D. Seiler, D. J. Mountford, Alison Laird, Kathrin Wimmer, H.-F. Wirth, Anuj Parikh, Jordi José, B. R. Fulton, A. St. J. Murphy, A. Chen, B. Sambrook, D. Irvine, S. P. Fox, Catherine Deibel
Publikováno v: Physical Review Letters. 110
The $^{18}\mathrm{F}(p,\ensuremath{\alpha})^{15}\mathrm{O}$ reaction rate is crucial for constraining model predictions of the $\ensuremath{\gamma}$-ray observable radioisotope $^{18}\mathrm{F}$ produced in novae. The determination of this rate is ch
Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::0b34f184d29debccfceeefd5093442dd
https://doi.org/10.1103/physrevlett.110.032502
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8
Is γ-ray emission from novae affected by interference effects in the 18F(p,α)15O reaction?
Autor: A M, Laird, A, Parikh, A St J, Murphy, K, Wimmer, A A, Chen, C M, Deibel, T, Faestermann, S P, Fox, B R, Fulton, R, Hertenberger, D, Irvine, J, José, R, Longland, D J, Mountford, B, Sambrook, D, Seiler, H-F, Wirth
Publikováno v: Physical review letters. 110(3)
The (18)F(p,α)(15)O reaction rate is crucial for constraining model predictions of the γ-ray observable radioisotope (18)F produced in novae. The determination of this rate is challenging due to particular features of the level scheme of the compou
Externí odkaz: https://explore.openaire.eu/search/publication?articleId=pmid________::e07ab9dbcf55a3f73b0201e7fced58b8
https://pubmed.ncbi.nlm.nih.gov/23373915
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9
Resonances in 19Ne with relevance to the astrophysically important 18F(p,$\alpha$)15O reaction
Autor: Nicolas de Séréville, C. Angulo, Pedja Ujic, O. Kamalou, Alexander Murphy, F. de Oliveira, L. Achouri, P. J. Woods, D. J. Mountford, T. Davinson, Pierre Descouvemont, J. R. Brown, S. T. Pittman, Alison Laird
Publikováno v: PoS-Proceedings of Science
VI European Summer School on Experimental Nuclear Astrophysics
VI European Summer School on Experimental Nuclear Astrophysics, Sep 2011, Acireale, Italy. pp.050
Physical Review C
Physical Review C, American Physical Society, 2012, 85, pp.022801. ⟨10.1103/PhysRevC.85.022801⟩
Physical Review C, 2012, 85, pp.022801. ⟨10.1103/PhysRevC.85.022801⟩
The most intense gamma-ray line observable from novae is likely to be from positron annihilation associated with the decay of 18F. The uncertainty in the destruction rate of this nucleus through the 18F(p,{\alpha})15O reaction presents a limit to int
Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::c2461ab94ea84d51b0830d3109aa4779
https://hal.in2p3.fr/in2p3-00702716
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