Thermonuclear reaction S-30(p,gamma)Cl-31 studied via Coulomb breakup of Cl-31
Journal article, 2014

Coulomb breakup at high energy in inverse kinematics of proton-rich Cl-31 was used to constrain the thermonuclear S-30(p,gamma)Cl-31 capture reaction rate under typical Type I x-ray burst conditions. This reaction is a bottleneck during rapid proton-capture nucleosynthesis (rp process), where its rate depends predominantly on the nuclear structure of Cl-31. Two low-lying states just above the proton-separation threshold of S-p = 296( 50) keV in Cl-31 have been identified experimentally using the (RB)-B-3-LAND setup at the GSI Helmholtzzentrum fur Schwerionenforschung GmbH. Both states are considered to play a key role in the thermonuclear S-30( p,gamma)Cl-31 capture reaction. Excitation energies of the first J(pi) = 1/2(+), 5/2(+) states have been extracted and the reaction rate for proton capture on S-30 under typical rp-process temperatures has been investigated.

AR-31

RELATIVISTIC HEAVY-IONS

REACTION-RATES

X-RAY-BURSTS

GRAPHS

DECAY

RP-PROCESS

TABLES

NUCLEI

Author

C. Langer

O. Lepyoshkina

Y. Aksyutina

T. Aumann

S. B. Novo

J. Benlliure

K. Boretzky

M. Chartier

D. Cortina

U. D. Pramanik

O. Ershova

H. Geissel

R. Gernhauser

M. Heil

G. Ickert

Håkan T Johansson

Chalmers, Fundamental Physics

Björn Jonson

Chalmers, Fundamental Physics

A. Kelic-Heil

A. Klimkiewicz

J. V. Kratz

R. Krucken

R. Kulessa

Kristian Larsson

Chalmers, Fundamental Physics

T. Le Bleis

R. Lemmon

K. Mahata

J. Marganiec

Thomas Nilsson

Chalmers, Fundamental Physics

V. Panin

R. Plag

W. Prokopowicz

R. Reifarth

V. Ricciardi

D. M. Rossi

S. Schwertel

H. Simon

K. Summerer

B. Streicher

J. Taylor

J. R. Vignote

F. Wamers

C. Wimmer

P. Z. Wu

Physical Review C - Nuclear Physics

0556-2813 (ISSN) 1089-490X (eISSN)

Vol. 89 3

Subject Categories

Subatomic Physics

Physical Sciences

Roots

Basic sciences

DOI

10.1103/PhysRevC.89.035806

More information

Created

10/7/2017