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364 results on '"Hutcheon, D. A."'

52. Measurement of radiative proton capture on F 18 and implications for oxygen-neon novae reexamined

Author

Akers, C., Laird, A. M., Fulton, B. R., Ruiz, C., Bardayan, D. W., Buchmann, L., Christian, G., Davids, B., Erikson, L., Fallis, J., Hager, U., Hutcheon, D., Martin, L., Murphy, A. St J, Nelson, K., Ottewell, D., Rojas, A., and Spyrou, A.

Abstract

Background: The rate of the F18(p,γ)Ne19 reaction affects the final abundance of the radioisotope F18 ejected from novae. This nucleus is important as its abundance is thought to significantly influence the first-stage 511-keV and continuum γ-ray emission in the aftermath of novae. No successful measurement of this reaction existed prior to this work, and the rate used in stellar models had been calculated based on incomplete information from contributing resonances. Purpose: Of the two resonances thought to provide a significant contribution to the astrophysical reaction rate, located at Ec.m.=330 and 665 keV, the former has a radiative width estimated from the assumed analog state in the mirror nucleus, F19, while the latter resonance does not have an analog state assignment, resulting in an arbitrary radiative width being assumed. As such, a direct measurement was needed to establish what role this resonance plays in the destruction of F18 at nova temperatures. This paper extends and takes the place of a previous Letter which reported the strength of the Ec.m.=665 keV resonance. Method: The DRAGON recoil separator was used to directly measure the strength of the important 665-keV resonance in this reaction, in inverse kinematics, by observing Ne19 reaction products. A radioactive F18 beam was provided by the ISAC facility at TRIUMF. R-matrix calculations were subsequently used to evaluate the significance of the results at astrophysical energies. Results: We report the direct measurement of the F18(p,γ)Ne19 reaction with the reevaluation of several detector efficiencies and the use of an updated Ne19 level scheme in the reaction rate analysis. The strength of the 665-keV resonance (Ex=7.076 MeV) is found to be an order of magnitude weaker than currently assumed in nova models. An improved analysis of the previously reported data is presented here, resulting in a slightly different value for the resonance strength. These small changes, however, do not alter the primary conclusions. Conclusions: Reaction rate calculations definitively show that the 665-keV resonance plays no significant role in the destruction of F18 at nova temperatures.

Published
2016

53. Direct measurement of resonance strengths inS34(α,γ)Ar38at astrophysically relevant energies using the DRAGON recoil separator

Author

Connolly, D., primary, O'Malley, P. D., additional, Akers, C., additional, Chen, A. A., additional, Christian, G., additional, Davids, B., additional, Erikson, L., additional, Fallis, J., additional, Fulton, B. R., additional, Greife, U., additional, Hager, U., additional, Hutcheon, D. A., additional, Ilyushkin, S., additional, Laird, A. M., additional, Mahl, A., additional, and Ruiz, C., additional

Published
2018
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54. Direct measurement of astrophysically important resonances in K38(p,γ)Ca39

Author

Christian, G., primary, Lotay, G., additional, Ruiz, C., additional, Akers, C., additional, Burke, D. S., additional, Catford, W. N., additional, Chen, A. A., additional, Connolly, D., additional, Davids, B., additional, Fallis, J., additional, Hager, U., additional, Hutcheon, D., additional, Mahl, A., additional, Rojas, A., additional, and Sun, X., additional

Published
2018
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56. Direct Measurement of the Key Ec.m.=456 keV Resonance in the Astrophysical Ne19(p,γ)Na20 Reaction and Its Relevance for Explosive Binary Systems

Author

Wilkinson, R., primary, Lotay, G., additional, Lennarz, A., additional, Ruiz, C., additional, Christian, G., additional, Akers, C., additional, Catford, W. N., additional, Chen, A. A., additional, Connolly, D., additional, Davids, B., additional, Hutcheon, D. A., additional, Jedrejcic, D., additional, Laird, A. M., additional, Martin, L., additional, McNeice, E., additional, Riley, J., additional, and Williams, M., additional

Published
2017
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57. Optical design and performance of the SASP spectrometer at TRIUMF

Author

Walden, P.L., Walton, T.G., Miller, C.A., Yen, S., Abegg, R., Auld, E.G., Campbell, J., Chakhalyan, J., Churchman, R., Duncan, F., Falk, W., Frekers, D., Green, A., Green, P.E.W., Hartig, M., Häusser, O., Haddock, C., Hicks, K., Hutcheon, D., Jones, G., Ke, Y., Korkmaz, E.J., Khan, N., Ling, A., Lobb, D.E., Naqvi, S.I.H., Olsen, W.C., Opper, A., Otter, A., Punyasena, M., Reeve, P., and Zhao, J.

Published
1999
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58. The Triumf Kaon Factory Proposal

Author

Hutcheon, D. A., Mitter, H., editor, Plessas, W., editor, Ciofi degli Atti, Claudio, editor, Benhar, Omar, editor, Pace, Emanuele, editor, and Salmè, Giovanni, editor

Published
1986
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59. GAMMA-RAY TRANSITIONS FROM LOWEST T=2 STATES OF NA-24 AND AL-28

Author

START, D, JELLEY, N, BURDE, J, HUTCHEON, D, RANDOLPH, W, UNDERWOO, B, and WARNER, R

Abstract

The γ-ray decay modes of the lowest 0+, f = 2 states of 24Na and 28Al have been investigated with a Ge(Li) detector in the 22Ne(3He, p)24Na and 26Mg(3He, p)28Al reactions. Precise excitation energies of 5970.2 ± 0.9 keV and 5992.4 ± 0.4 keV were obtained for the 24Na and 28Al T = 2 states respectively. These energies are used to calculate the masses of the Tz = -1 and -2 members of each isobaric quintet and the branching ratios are compared with those of the analogous isovector M1 transitions in 24Mg and 28Si and also with shell model calculations. © 1973.

Published
2016

60. Measurement of radiative proton capture onF18and implications for oxygen-neon novae reexamined

Author

Akers, C., primary, Laird, A. M., additional, Fulton, B. R., additional, Ruiz, C., additional, Bardayan, D. W., additional, Buchmann, L., additional, Christian, G., additional, Davids, B., additional, Erikson, L., additional, Fallis, J., additional, Hager, U., additional, Hutcheon, D., additional, Martin, L., additional, Murphy, A. St. J., additional, Nelson, K., additional, Ottewell, D., additional, Rojas, A., additional, and Spyrou, A., additional

Published
2016
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61. Constraining the 19Ne(p,γ)20Na Reaction Rate Using a Direct Measurement at DRAGON.

Author

Wilkinson, R., Catford, W. N., Lotay, G., Laird, A. M., Riley, J., Lennarz, A., Ruiz, C., Connolly, D., Davids, B., Hutcheon, D. A., Martin, L., Williams, M., Akers, C., Christian, G., Chen, A. A., McNeice, E., and Jedrejcic, D.

Subjects
NUCLEAR reactions, NEON isotopes, SODIUM, KINEMATICS, X-ray bursts, NOVAE (Astronomy)
Abstract

A direct measurement of the 19Ne(p, γ)20 Na reaction has been performed in inverse kinematics at the DRAGON recoil separator, at an energy ∼ 10 keV higher than previous measurements. The key resonance in the 19 Ne + p system relevant for ONe novae and Type-I X-ray burst temperatures have been successfully measured for the first time. Preliminary estimates of the resonance energy and strength are reported as Ec.m. ≈ 458 keV and ωγ ≈ 18 meV. These results are consistent with previous direct measurements, but disagree with the most recent study of the 19Ne(p, γ)20 Na reaction rate. These preliminary results will be finalised after a forthcoming negative log-likelihood analysis. [ABSTRACT FROM AUTHOR]

Published
2017
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62. Backward angle p-d elastic scattering at 316 and 516 MeV

Author

Anderson, A. N., Cameron, J. M., Hutcheon, D. A., Källne, J., Koene, B. K. S., Murdoch, B. T., van Oers, W. T. H., Stetz, A. W., Ehlers, J., editor, Hepp, K., editor, Kippenhahn, R., editor, Weidenmüller, H. A., editor, Zittartz, J., editor, Beiglböck, W., editor, Zingl, H., editor, Haftel, M., editor, and Zankel, H., editor

Published
1978
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64. Direct Measurement of the AstrophysicalK38(p,γ)Ca39Reaction and Its Influence on the Production of Nuclides toward the End Point of Nova Nucleosynthesis

Author

Lotay, G., primary, Christian, G., additional, Ruiz, C., additional, Akers, C., additional, Burke, D. S., additional, Catford, W. N., additional, Chen, A. A., additional, Connolly, D., additional, Davids, B., additional, Fallis, J., additional, Hager, U., additional, Hutcheon, D. A., additional, Mahl, A., additional, Rojas, A., additional, and Sun, X., additional

Published
2016
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66. Strength of the $E_{\text{cm}} = 1113$ keV resonance in $^{20}${Ne}$(p, ��)^{21}${Na}

Author

Christian, G., Hutcheon, D., Akers, C., Connolly, D., Fallis, J., and Ruiz, C.

Subjects
FOS: Physical sciences, Nuclear Experiment (nucl-ex), Solar and Stellar Astrophysics (astro-ph.SR)
Abstract

The $^{20}$Ne$(p, ��)^{21}$Na reaction is the starting point of the NeNa cycle, which is an important process for the production of intermediate mass elements. The $E_{\text{cm}} = 1113$ keV resonance plays an important role in the determination of stellar rates for this reaction since it is used to normalize experimental direct capture yields at lower energies. The commonly accepted strength of this resonance, $����= 1.13 \pm 0.07$ eV, has been misinterpreted as the strength in the center-of-mass frame when it is actually the strength in the laboratory frame. This has motivated a new measurement of the $E_{\text{cm}} = 1113$ keV resonance strength in $^{20}$Ne$(p, ��)^{21}$Na using the DRAGON recoil mass spectrometer. The DRAGON result, $0.972 \pm 0.11$ eV, is in good agreement with the accepted value when both are calculated in the same frame of reference., 4 pages, 2 figures, recommended for publication in Phys. Rev. C, Brief Reports

Published
2013
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67. Direct total cross section measurement of the 16O(α,γ)20Ne reaction at Ec.m.=2.26 MeV

Author

Hager, U., Brown, J.R., Buchmann, L., Carmona Gallardo, M., Erikson, L., Fallis, J., Greife, U., Hutcheon, D., Ottewell, D., Ruiz, C., Sjue, S., and Vockenhuber, C.

Abstract

In stellar helium burning, 16O represents the endpoint of the helium-burning sequence due to the low rate of 16O(α,γ)20Ne. We present a new direct measurement of the total capture reaction rate of 16O(α,γ)20Ne at Ec.m.=2.26MeV employing the DRAGON recoil separator. For the first time, the total S factor and its contributing direct capture transitions could be determined in one experiment. © 2011 American Physical Society., We would like to thank the beam delivery and ISAC operations groups at TRIUMF. The authors gratefully acknowledge funding from the Natural Sciences and Engineering Research Council of Canada and the US DOE Office of Nuclear Physics

Published
2011

68. Absolute determination of the Na-22(rho, gamma)Mg-23 reaction rate in novae

Author

José Pont, Jordi, Caggiano, J. A., Hutcheon, D. A., Vockenhuber, C., Buchmann, L., Sallaska, A.L., Wrede, C., Garcia, A., Storm, D. W., Brown, T. A. D., Ruiz, C., Snover, K.A., Ottewell, D., Universitat Politècnica de Catalunya. Departament de Física i Enginyeria Nuclear, and Universitat Politècnica de Catalunya. GAA - Grup d'Astronomia i Astrofísica

Subjects
Astrophysics::High Energy Astrophysical Phenomena, Física::Astronomia i astrofísica [Àrees temàtiques de la UPC], Nova (Astronomia), Novae, 22Na(p,γ )23Mg, Stars, New -- Observations
Abstract

Gamma-ray telescopes in orbit around the earth are searching for evidence of the elusive radionuclide 22Na produced in novae. Previously published uncertainties in the dominant destructive reaction, 22Na(p,γ)23Mg, indicated new measurements in the proton energy range of 150 to 300 keV were needed to constrain predictions. We have measured the resonance strengths, energies, and branches directly and absolutely by using protons from the University of Washington accelerator with a specially designed beam line, which included beam rastering and cold vacuum protection of the 22Na implanted targets. The targets, fabricated at TRIUMF-ISAC, displayed minimal degradation over a ∼20 C bombardment as a result of protective layers. We avoided the need to know the absolute stopping power, and hence the target composition, by extracting resonance strengths from excitation functions integrated over proton energy. Our measurements revealed that resonance strengths for Ep = 213, 288, 454, and 610 keV are stronger by factors of 2.4–3.2 than previously reported. Upper limits have been placed on proposed resonances at 198, 209, and 232 keV. These substantially reduce the uncertainty in the reaction rate. We have re-evaluated the 22Na(p,γ) reaction rate, and our measurements indicate the resonance at 213 keV makes the most significant contribution to 22Na destruction in novae. Hydrodynamic simulations including our rate indicate that the expected abundance of 22Na ejecta from a classical nova is reduced by factors between 1.5 and 2, depending on the mass of the white-dwarf star hosting the nova explosion.

Published
2011

69. Constraining the Astrophysical S Factor of the 3He(α,γ)7Be Reaction

Author

Carmona-Gallardo, M., primary, Rojas, A., additional, Singh, B. S. Nara, additional, Akers, C., additional, Aviv, O., additional, Borge, M. J. G., additional, Christian, G., additional, Davids, B., additional, Fallis, J., additional, Fulton, B. R., additional, Hager, U., additional, Haquin, G., additional, Hass, M., additional, Hutcheon, D. A., additional, Nir-El, Y., additional, Ottewell, D., additional, Ruiz, C., additional, Sjue, S. K. L., additional, Tengblad, O., additional, Yaniv, R., additional, and Yungreis, Z., additional

Published
2015
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70. The first direct measurement of 17O(α,γ)21Ne and its impact upon s-process abundances

Author

Taggart, M., Hager, U., Laird, A. M., Ruiz, C., Hutcheon, D., Ottewell, D., Fallis, J., Erikson, L., Bentley, M., Brown, J. R., Buchmann, L., Chen, A. A., Jun Chen, Chipps, K. A., D Auria, J., Davids, B., Davis, C., Diget, C. A., Fox, S. P., Fulton, B., Galinski, N., Greife, U., Herwig, F., Hirschi, R., Howell, D., Martin, L., Mountford, D., Murphy, A., Pignatari, M., Reeve, S., Ruprecht, G., Sjue, S., and Veloce, L.

Abstract

An experimental campaign to perform the first accurate measurement of the 17O(a,g)21Ne reaction rate was carried out during May and November 2009 at the DRAGON recoil separator in the TRIUMF laboratory, Vancouver, Canada. The goals were to differentiate between two previous conflicting theoretical predictions, and to establish the (a,g)/(a,n) reaction rate ratio.Two distinct energy regions were scanned: a higher region, Ecm 1.5 MeV, where the recoil cone was sufficiently confined and the cross section sufficiently large so that a statistically significant yield could be achieved, and a lower region, Ecm 0.7 MeV, chosen to approach the astrophysicalenergies and reduce errors from extrapolation. The experiment, performed in inverse kinematics, used the highest intensity beam ever deliveredto DRAGON, 11012 pps of 17O incident on a 4He gas target. An array of 30 Bismuth Germanate (BGO) detectors [1] was used in conjunction with two microchannel plates (MCP) [2] for a local time-of-flight measurement, and ion chamber for coincident event detection.

Published
2010

73. Study of the $^{40}Ca(\alpha, \gamma)^{44}Ti$ reaction at stellar temperatures with DRAGON

Author

Vockenhuber, C, Ouellet, C O, Buchmann, L, Caggiano, J A, Chen, A A, Crawford, H, D'Auria, J, Davids, B, Fogarty, L, Frekers, D, Hussein, A, Hutcheon, D A, Kutschera, W, Laird, A M, Lewis, R, O'Connor, E, Ottewell, D F, Paul, M, Pavan, M, Pearson, J, Ruiz, C, Ruprecht, G, Trinczek, M, Wales, B, and Wallner, A

Subjects
Astrophysics and Astronomy
Published
2006

74. Quasi-elastic scattering of polarized protons

Author

Kitching, P., Antonuk, L., Hutcheon, D. A., McDonald, W. J., Miller, C. A., Neilson, G. C., Olsen, W. C., Stinson, G. M., Earle, E. D., Stetz, A. W., Ehlers, J., editor, Hepp, K., editor, Kippenhahn, R., editor, Weidenmüller, H. A., editor, Zittartz, J., editor, Beiglböck, W., editor, Zingl, H., editor, Haftel, M., editor, and Zankel, H., editor

Published
1978
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75. Quasi-elastic scattering of polarized protons

Author

Kitching, P., primary, Antonuk, L., additional, Hutcheon, D. A., additional, McDonald, W. J., additional, Miller, C. A., additional, Neilson, G. C., additional, Olsen, W. C., additional, Stinson, G. M., additional, Earle, E. D., additional, and Stetz, A. W., additional

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77. TheC12(O16,γSi28)radiative capture reaction at sub-barrier energies

Author

Goasduff, A., primary, Courtin, S., additional, Haas, F., additional, Lebhertz, D., additional, Jenkins, D. G., additional, Fallis, J., additional, Ruiz, C., additional, Hutcheon, D. A., additional, Amandruz, P.-A., additional, Davis, C., additional, Hager, U., additional, Ottewell, D., additional, and Ruprecht, G., additional

Published
2014
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78. Constraining nova observables: Direct measurements of resonance strengths in33S(p,γ)34Cl

Author

Fallis, J., primary, Parikh, A., additional, Bertone, P. F., additional, Bishop, S., additional, Buchmann, L., additional, Chen, A. A., additional, Christian, G., additional, Clark, J. A., additional, D’Auria, J. M., additional, Davids, B., additional, Deibel, C. M., additional, Fulton, B. R., additional, Greife, U., additional, Guo, B., additional, Hager, U., additional, Herlitzius, C., additional, Hutcheon, D. A., additional, José, J., additional, Laird, A. M., additional, Li, E. T., additional, Li, Z. H., additional, Lian, G., additional, Liu, W. P., additional, Martin, L., additional, Nelson, K., additional, Ottewell, D., additional, Parker, P. D., additional, Reeve, S., additional, Rojas, A., additional, Ruiz, C., additional, Setoodehnia, K., additional, Sjue, S., additional, Vockenhuber, C., additional, Wang, Y. B., additional, and Wrede, C., additional

Published
2013
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79. Measurement of the analyzing power of the reactions C(p,pp)X and C(p,pd)X at 500 MeV

Author

Khurelbaatar, B, Kiselev, V S, Kutuev, R K, Musulmanbekov, Z Z, Nikitin, V A, Nomokonov, V P, Pavlyuk, A V, Rufanov, I A, Zulkarneev, R Ya, Avezov, A D, Gafarov, A A, Koblik, Yu N, Mialkovski, V V, Mirkarimov, D A, Morozov, A V, Pirogov, V A, Radyuk, G A, Yuldashev, B S, Hutcheon, D A, Yen, S, Chaloupka, V, Dougherty, W M, Liang, G, Lubatti, H J, Weitkamp, W G, and Zhao, T C

Subjects
Nuclear Physics
Published
2000

81. Measurement of Radiative Proton Capture onF18and Implications for Oxygen-Neon Novae

Author

Akers, C., primary, Laird, A. M., additional, Fulton, B. R., additional, Ruiz, C., additional, Bardayan, D. W., additional, Buchmann, L., additional, Christian, G., additional, Davids, B., additional, Erikson, L., additional, Fallis, J., additional, Hager, U., additional, Hutcheon, D., additional, Martin, L., additional, Murphy, A. St. J., additional, Nelson, K., additional, Spyrou, A., additional, Stanford, C., additional, Ottewell, D., additional, and Rojas, A., additional

Published
2013
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82. MEASURING THE 16O(α, γ)20Ne REACTION RATE WITH THE DRAGON RECOIL SEPARATOR AT TRIUMF

Author

HAGER, U., primary, GREIFE, U., additional, BUCHMANN, L., additional, DAVIDS, B., additional, FALLIS, J., additional, HUTCHEON, D., additional, OTTEWELL, D., additional, REEVE, S., additional, ROJAS, A., additional, RUIZ, C., additional, SJUE, S. K. L., additional, ERIKSON, L., additional, CARMONA-GALLARDO, M., additional, VOCKENHUBER, C., additional, BROWN, J. R., additional, and IRVINE, D., additional

Published
2013
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85. 12C(16O,γ)28Si radiative capture: Structural and statistical aspects of theγdecay

Author

Lebhertz, D., primary, Courtin, S., additional, Haas, F., additional, Jenkins, D. G., additional, Simenel, C., additional, Salsac, M.-D., additional, Hutcheon, D. A., additional, Beck, C., additional, Cseh, J., additional, Darai, J., additional, Davis, C., additional, Glover, R. G., additional, Goasduff, A., additional, Kent, P. E., additional, Levai, G., additional, Marley, P. L., additional, Michalon, A., additional, Pearson, J. E., additional, Rousseau, M., additional, Rowley, N., additional, and Ruiz, C., additional

Published
2012
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87. Cross section measurements of the3He(α,γ)7Be reaction using DRAGON at TRIUMF

Author

Singh, B S Nara, primary, Sjue, S K L, additional, Davids, B, additional, Hass, M, additional, Adsley, P, additional, Buchmann, L, additional, Carmona-Gallardo, M, additional, Fallis, J, additional, Fox, S P, additional, Fulton, B, additional, Galinski, N, additional, Hager, U, additional, Hutcheon, D A, additional, Laird, A M, additional, Martin, L, additional, Ottewell, D, additional, Reeve, S, additional, Ruiz, C, additional, Ruprecht, G, additional, Shotter, A, additional, and Tengblad, O, additional

Published
2012
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88. [sup 12]C+[sup 16]O: Properties of sub-barrier resonance γ-decay

Author

Goasduff, A., primary, Courtin, S., additional, Haas, F., additional, Lebhertz, D., additional, Jenkins, D. G., additional, Fallis, J., additional, Ruiz, C., additional, Hutcheon, D. A., additional, Amandruz, P.-A., additional, Davis, C., additional, Hager, U., additional, Ottewell, D., additional, and Ruprecht, G., additional

Published
2012
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90. Absolute determination of theNa22(p,γ)Mg23reaction rate in novae

Author

Sallaska, A. L., primary, Wrede, C., additional, García, A., additional, Storm, D. W., additional, Brown, T. A. D., additional, Ruiz, C., additional, Snover, K. A., additional, Ottewell, D. F., additional, Buchmann, L., additional, Vockenhuber, C., additional, Hutcheon, D. A., additional, Caggiano, J. A., additional, and José, J., additional

Published
2011
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91. Long-term randomized controlled trial of a novel nanopowder hemostatic agent (TC-325) for control of severe arterial upper gastrointestinal bleeding in a porcine model

Author

Giday, S., primary, Kim, Y., additional, Krishnamurty, D., additional, Ducharme, R., additional, Liang, D., additional, Shin, E., additional, Dray, X., additional, Hutcheon, D., additional, Moskowitz, K., additional, Donatelli, G., additional, Rueben, D., additional, Canto, M., additional, Okolo, P., additional, and Kalloo, A., additional

Published
2011
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92. Improving the [sup 33]S(p,γ)[sup 34]Cl Reaction Rate for Models of Classical Nova Explosions

Author

Parikh, A., primary, Faestermann, Th., additional, Krücken, R., additional, Bildstein, V., additional, Bishop, S., additional, Eppinger, K., additional, Herlitzius, C., additional, Lepyoshkina, O., additional, Maierbeck, P., additional, Seiler, D., additional, Wimmer, K., additional, Hertenberger, R., additional, Wirth, H.-F., additional, Fallis, J., additional, Hager, U., additional, Hutcheon, D., additional, Ruiz, Ch., additional, Buchmann, L., additional, Ottewell, D., additional, Freeman, B., additional, Wrede, Ch., additional, García, A., additional, Delbridge, B., additional, Knecht, A., additional, Sallaska, A., additional, Chen, A. A., additional, Clark, J. A., additional, Deibel, C. M., additional, Fulton, B., additional, Laird, A., additional, Greife, U., additional, Guo, B., additional, Li, E., additional, Li, Z., additional, Lian, G., additional, Wang, Y., additional, Liu, W., additional, Parker, P. D., additional, Setoodehnia, K., additional, Demetriou, Paraskevi, additional, Julin, Rauno, additional, and Harissopulos, Sotirios, additional

Published
2011
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93. Erratum: Direct Measurements ofNa22(p,γ)Mg23Resonances and Consequences forNa22Production in Classical Novae [Phys. Rev. Lett.105, 152501 (2010)]

Author

Sallaska, A. L., primary, Wrede, C., additional, García, A., additional, Storm, D. W., additional, Brown, T. A. D., additional, Ruiz, C., additional, Snover, K. A., additional, Ottewell, D. F., additional, Buchmann, L., additional, Vockenhuber, C., additional, Hutcheon, D. A., additional, and Caggiano, J. A., additional

Published
2010
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95. First direct measurement of theMg23(p,γ)Al24reaction

Author

Erikson, L., primary, Ruiz, C., additional, Ames, F., additional, Bricault, P., additional, Buchmann, L., additional, Chen, A. A., additional, Chen, J., additional, Dare, H., additional, Davids, B., additional, Davis, C., additional, Deibel, C. M., additional, Dombsky, M., additional, Foubister, S., additional, Galinski, N., additional, Greife, U., additional, Hager, U., additional, Hussein, A., additional, Hutcheon, D. A., additional, Lassen, J., additional, Martin, L., additional, Ottewell, D. F., additional, Ouellet, C. V., additional, Ruprecht, G., additional, Setoodehnia, K., additional, Shotter, A. C., additional, Teigelhöfer, A., additional, Vockenhuber, C., additional, Wrede, C., additional, and Wallner, A., additional

Published
2010
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96. A New Decay Path in the [sup 12]C+[sup 16]O Radiative Capture Reaction

Author

Courtin, S., primary, Lebhertz, D., additional, Haas, F., additional, Beck, C., additional, Hutcheon, D. A., additional, Jenkins, D. G., additional, Lister, C. J., additional, Marley, P., additional, Michalon, A., additional, Salsac, M.-D., additional, Rehm, K. Ernst, additional, Back, Birger B., additional, Esbensen, Henning, additional, and Lister, C.J. (Kim), additional

Published
2009
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97. New decay branches of the radiative capture reaction [sup 12]C([sup 16]O,γ)[sup 28]Si

Author

Lebhertz, D., primary, Courtin, S., additional, Haas, F., additional, Salsac, M.-D., additional, Beck, C., additional, Michalon, A., additional, Rousseau, M., additional, Marley, P. L., additional, Glover, R. G., additional, Kent, P. E., additional, Hutcheon, D. A., additional, Davis, C., additional, Pearson, J. E., additional, Jolie, Jan, additional, Zilges, Andreas, additional, Warr, Nigel, additional, and Blazhev, Andrey, additional

Published
2009
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98. Radiative Capture Process at the Coulomb Barrier: the Resonant [sup 12]C+[sup 16]O Case

Author

Lebhertz, D., primary, Courtin, S., additional, Haas, F., additional, Salsac, M.-D., additional, Beck, C., additional, Michalon, A., additional, Rousseau, M., additional, Marley, P. L., additional, Glover, R. G., additional, Kent, R. E., additional, Hutcheon, D. A., additional, Davis, C., additional, Pearson, J. E., additional, Milin, Matko, additional, Niksic, Tamara, additional, Szilner, Suzana, additional, and Vretenar, Dario, additional

Published
2009
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99. The 4He(p,d)3He reaction at 200 and 400 MeV

Author

Alons, P. W. F, Kraushaar, J. J, Shepard, J. R, Cameron, J. M, Hutcheon, D. A, Liljesttand, R. P, Mcdonald, W. J, Miller, C. A, Olsen, W. C, and Tinsley, J. R

Subjects
Atomic And Molecular Physics
Abstract

The distorted wave calculations are compared with the He-4(p,d) cross section. At all four energies the theoretical description of the data is relatively poor. While the general magnitude of the cross sections is not in bad agreement, the detailed slopes of the theoretical angular distributions miss the shapes of the experimental data in a rather fundamental way.

Published
1985

100. Elastic scattering of 400-MeV protons by Pb-208

Author

Hutcheon, D. A, Cameron, J. M, Liljestrand, R. P, Kitching, P, Miller, C. A, Mcdonald, W. J, Sheppard, D. M, Olsen, W. C, Neilson, G. C, and Sherif, H. S

Subjects
Nuclear And High-Energy Physics
Abstract

Cross-section and analyzing-power angular distributions for elastic scattering of 400-MeV protons by Pb-208 have been measured between 3 and 51 deg. Results have been compared to second-order Kerman-McManus-Thaler (1959) calculations of the optical potential. There is evidence that free nucleon-nucleon scattering amplitudes do not adequately describe nucleon propagation in nuclear matter at this energy.

Published
1981
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