Universität zu Köln

Petri, M., Paschalis, S., Clark, R. M., Fallon, P., Macchiavelli, A. O., Starosta, K., Baugher, T., Bazin, D., Cartegni, L., Crawford, H. L., Cromaz, M., Pramanik, U. Datta, de Angelis, G., Dewald, A., Gade, A., Grinyer, G. F., Gros, S., Hackstein, M., Jeppesen, H. B., Lee, I. Y., McDaniel, S., Miller, D., Rajabali, M. M., Ratkiewicz, A., Rother, W., Voss, P., Walsh, K. A., Weisshaar, D., Wiedeking, M., Brown, B. A., Forssen, C., Navratil, P. and Roth, R. (2012). Structure of C-16: Testing shell model and ab initio approaches. Phys. Rev. C, 86 (4). COLLEGE PK: AMER PHYSICAL SOC. ISSN 1089-490X

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Abstract

Excited states in C-16 were populated via the Be-9(N-17,C-16+gamma)X one-proton knockout reaction. The lifetime of the 2(1)(+) state in C-16 was measured using the recoil distance method. The extracted lifetime of tau(+)(21) = 11.4(-0.9)(+0.8)(stat) +/- 0.7(syst(B rho))(-1.5)(+0.0)(syst(feeding)) ps yields a deduced B(E2;2(1)(+) -> 0(1)(+)) = 4.21(-0.26)(+0.34)(stat)(-0.24)(+0.28)(syst(B rho))(-0.00)(+0.64)(syst(feeding)) e(2)fm(4) value in good agreement with a previous measurement. The one-proton knockout cross section is used to extract the proton amplitude of the C-16 2(1)(+) state, which confirms the neutron dominant character of this state. Gamma-ray branching ratios between the 2(2)(+) state and the 2(1)(+) and ground states were also determined. The results are compared with p-sd shell model and no-core shell model (with NN and NN + NNN) calculations. The inclusion of three-body forces are essential in order for the no-core shell model calculations to reproduce the experimental findings on the gamma-ray branching ratios.

Item Type:	Journal Article
Creators:	Creators Email ORCID ORCID Put Code Petri, M. UNSPECIFIED UNSPECIFIED UNSPECIFIED Paschalis, S. UNSPECIFIED UNSPECIFIED UNSPECIFIED Clark, R. M. UNSPECIFIED UNSPECIFIED UNSPECIFIED Fallon, P. UNSPECIFIED UNSPECIFIED UNSPECIFIED Macchiavelli, A. O. UNSPECIFIED UNSPECIFIED UNSPECIFIED Starosta, K. UNSPECIFIED UNSPECIFIED UNSPECIFIED Baugher, T. UNSPECIFIED UNSPECIFIED UNSPECIFIED Bazin, D. UNSPECIFIED UNSPECIFIED UNSPECIFIED Cartegni, L. UNSPECIFIED UNSPECIFIED UNSPECIFIED Crawford, H. L. UNSPECIFIED UNSPECIFIED UNSPECIFIED Cromaz, M. UNSPECIFIED UNSPECIFIED UNSPECIFIED Pramanik, U. Datta UNSPECIFIED UNSPECIFIED UNSPECIFIED de Angelis, G. UNSPECIFIED UNSPECIFIED UNSPECIFIED Dewald, A. UNSPECIFIED UNSPECIFIED UNSPECIFIED Gade, A. UNSPECIFIED UNSPECIFIED UNSPECIFIED Grinyer, G. F. UNSPECIFIED UNSPECIFIED UNSPECIFIED Gros, S. UNSPECIFIED UNSPECIFIED UNSPECIFIED Hackstein, M. UNSPECIFIED UNSPECIFIED UNSPECIFIED Jeppesen, H. B. UNSPECIFIED UNSPECIFIED UNSPECIFIED Lee, I. Y. UNSPECIFIED UNSPECIFIED UNSPECIFIED McDaniel, S. UNSPECIFIED UNSPECIFIED UNSPECIFIED Miller, D. UNSPECIFIED UNSPECIFIED UNSPECIFIED Rajabali, M. M. UNSPECIFIED UNSPECIFIED UNSPECIFIED Ratkiewicz, A. UNSPECIFIED UNSPECIFIED UNSPECIFIED Rother, W. UNSPECIFIED UNSPECIFIED UNSPECIFIED Voss, P. UNSPECIFIED UNSPECIFIED UNSPECIFIED Walsh, K. A. UNSPECIFIED UNSPECIFIED UNSPECIFIED Weisshaar, D. UNSPECIFIED UNSPECIFIED UNSPECIFIED Wiedeking, M. UNSPECIFIED UNSPECIFIED UNSPECIFIED Brown, B. A. UNSPECIFIED UNSPECIFIED UNSPECIFIED Forssen, C. UNSPECIFIED UNSPECIFIED UNSPECIFIED Navratil, P. UNSPECIFIED UNSPECIFIED UNSPECIFIED Roth, R. UNSPECIFIED UNSPECIFIED UNSPECIFIED
URN:	urn:nbn:de:hbz:38-480918
DOI:	10.1103/PhysRevC.86.044329
Journal or Publication Title:	Phys. Rev. C
Volume:	86
Number:	4
Date:	2012
Publisher:	AMER PHYSICAL SOC
Place of Publication:	COLLEGE PK
ISSN:	1089-490X
Language:	English
Faculty:	Unspecified
Divisions:	Unspecified
Subjects:	no entry
Uncontrolled Keywords:	Keywords Language LIFETIME MEASUREMENTS; TOOL Multiple languages Physics, Nuclear Multiple languages
URI:	http://kups.ub.uni-koeln.de/id/eprint/48091