Thermonuclear reaction S-30(p,gamma)Cl-31 studied via Coulomb breakup of Cl-31
Artikel i vetenskaplig tidskrift, 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

Författare

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 fysik

Björn Jonson

Chalmers, Fundamental fysik

A. Kelic-Heil

A. Klimkiewicz

J. V. Kratz

R. Krucken

R. Kulessa

Kristian Larsson

Chalmers, Fundamental fysik

T. Le Bleis

R. Lemmon

K. Mahata

J. Marganiec

Thomas Nilsson

Chalmers, Fundamental fysik

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

Ämneskategorier

Subatomär fysik

Fysik

Fundament

Grundläggande vetenskaper

DOI

10.1103/PhysRevC.89.035806