5 Papers
N. A. Orr is an academic researcher from Centre national de la recherche scientifique. The author has contributed to research in topics: Neutron & Nucleon. The author has an hindex of 4, co-authored 5 publications. Previous affiliations of N. A. Orr include University of Caen Lower Normandy.
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Papers
Migration of Nuclear Shell Gaps Studied in the d(Ne-24, p gamma)Ne-25 Reaction
W. N. Catford,C. N. Timis,Roy Crawford Lemmon,M. Labiche,N. A. Orr,N. A. Orr,B. Fernández-Domínguez,Robert Chapman,M. Freer,Marielle Chartier,H. Savajols,M. Rejmund,N.L. Achouri,N.L. Achouri,N. Amzal,N. I. Ashwood,T. D. Baldwin,M. Burns,Luis Caballero,J.M. Casadjian,N. Curtis,W. Gelletly,X. Liang,S.D. Pain,V. P. E. Pucknell,B. Rubio,O. Sorlin,K. M. Spohr,Ch. Theisen,D. D. Warner +29 more
TL;DR: In this article, a reaccelerated radioactive beam of 24Ne was used to study the (d,p) reaction in inverse kinematics and the unusual raising of the first 3/2+ level in 25Ne and its significance in terms of the migration of the neutron magic number from N=20 to N=16 is put on a firm footing by confirmation of this state's identity.
One-neutron removal reactions on neutron-rich psd-shell nuclei
E. Sauvan,F. Carstoiu,N. A. Orr,J. C. Angelique,W. N. Catford,N. M. Clarke,M. Mac Cormick,N. Curtis,M. Freer,S. Grévy,C. Le Brun,M. Lewitowicz,E. Liegard,F. M. Marqués,P. Roussel-Chomaz,M. G. Saint Laurent,M. Shawcross,J. S. Winfield +17 more
TL;DR: In this article, a systematic study of high energy, one-neutron removal reactions on 23 neutron-rich, psd-shell nuclei (Z=5-9, A=12-25) has been carried out.
One-neutron removal reactions on neutron-rich psd-shell nuclei
E. Sauvan,F. Carstoiu,N. A. Orr,J. C. Angelique,W. N. Catford,N. M. Clarke,M. Mac Cormick,N. Curtis,M. Freer,S. Grévy,C. Le Brun,M. Lewitowicz,E. Liegard,F. M. Marqués,P. Roussel-Chomaz,M. G. Saint Laurent,M. Shawcross,J. S. Winfield +17 more
TL;DR: In this article, a systematic study of high energy, one-neutron removal reactions on 23 neutron-rich, psd-shell nuclei (Z =5−9, A =12−25) has been carried out.
Search for double Gamow-Teller strength by heavy-ion double charge exchange
Jan Blomgren,K. Lindh,N. Anantaraman,Sam M. Austin,G. P. A. Berg,B. A. Brown,J. M. Casandjian,Marielle Chartier,M.D. Cortina-Gil,S. Fortier,M. Hellström,J.R. Jongman,J. H. Kelley,Alinka Lepine-Szily,I. Lhenry,M. Mac Cormick,W. Mittig,J. Nilsson,Nils Olsson,N. A. Orr,E. Ramakrishman,P. Roussel-Chomaz,B. M. Sherrill,P.-E. Tegnér,J. S. Winfield,J. A. Winger +25 more
TL;DR: In this article, a search for double Gamow-Teller excitations was carried out, employing the 24 Mg(18 O, 18 Ne) 24 Ne reaction at 100 and 76 MeV/nucleon at NSCL-MSU and GANIL, respectively.
Core excitation in 11begs via the p(11be, 10be)d reaction
S. Fortier,S. Pita,J.S. Winfield,J.S. Winfield,W. N. Catford,N. A. Orr,J. Van de Wiele,Y. Blumenfeld,R. Chapman,S. P. G. Chappell,N. M. Clarke,N. Curtis,M. Freer,S. Gales,K. L. Jones,H. Langevin-Joliot,H. Laurent,I. Lhenry,J.M. Maison,P. Roussel-Chomaz,M. Shawcross,M. B. Smith,K. M. Spohr,T. Suomijärvi,A. de Vismes +24 more
TL;DR: In this paper, the p(11Be,10Be)d reaction has been studied using a radioactive 11Be beam of 353 MeV/nucleon Differential cross sections have been compared with Distorted Wave Born Approximation calculations, using bound state form factors determined by solving the particle-vibration coupling equations.