Coulomb Suppression of the Stellar Enhancement Factor

G. G. Kiss; T. Rauscher; Gy. Gyurky; A. Simon; Zs. Fueloep; E. Somorjai

doi:10.1103/PhysRevLett.101.191101

Coulomb Suppression of the Stellar Enhancement Factor

G. G. Kiss, T. Rauscher, Gy. Gyurky, A. Simon, Zs. Fueloep, E. Somorjai

Centre for Astrophysics Research (CAR)

Research output: Contribution to journal › Letter › peer-review

46 Citations (Scopus)

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Abstract

It is commonly assumed that reaction measurements for astrophysics should be preferably performed in the direction of a positive Q value to minimize the impact of the stellar enhancement factor, i.e., the difference between the laboratory rate and the actual stellar rate. We show that the stellar effects can be minimized in the charged particle channel, even when the reaction Q value is negative. As a demonstration, the cross section of the astrophysically relevant (85)Rb(p,n)(85)Sr reaction has been measured by activation between 2.16

Original language	English
Article number	191101
Number of pages	4
Journal	Physical Review Letters
Volume	101
Issue number	19
DOIs	https://doi.org/10.1103/PhysRevLett.101.191101
Publication status	Published - 7 Nov 2008

Keywords

MODEL
PROCESS NUCLEOSYNTHESIS
FINITE NUCLEI
REACTION-RATES
P-PROCESS
HARD-CORE INTERACTION

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title = "Coulomb Suppression of the Stellar Enhancement Factor",

abstract = "It is commonly assumed that reaction measurements for astrophysics should be preferably performed in the direction of a positive Q value to minimize the impact of the stellar enhancement factor, i.e., the difference between the laboratory rate and the actual stellar rate. We show that the stellar effects can be minimized in the charged particle channel, even when the reaction Q value is negative. As a demonstration, the cross section of the astrophysically relevant (85)Rb(p,n)(85)Sr reaction has been measured by activation between 2.16 ",

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T1 - Coulomb Suppression of the Stellar Enhancement Factor

AU - Kiss, G. G.

AU - Rauscher, T.

AU - Gyurky, Gy.

AU - Simon, A.

AU - Fueloep, Zs.

AU - Somorjai, E.

PY - 2008/11/7

Y1 - 2008/11/7

N2 - It is commonly assumed that reaction measurements for astrophysics should be preferably performed in the direction of a positive Q value to minimize the impact of the stellar enhancement factor, i.e., the difference between the laboratory rate and the actual stellar rate. We show that the stellar effects can be minimized in the charged particle channel, even when the reaction Q value is negative. As a demonstration, the cross section of the astrophysically relevant (85)Rb(p,n)(85)Sr reaction has been measured by activation between 2.16

AB - It is commonly assumed that reaction measurements for astrophysics should be preferably performed in the direction of a positive Q value to minimize the impact of the stellar enhancement factor, i.e., the difference between the laboratory rate and the actual stellar rate. We show that the stellar effects can be minimized in the charged particle channel, even when the reaction Q value is negative. As a demonstration, the cross section of the astrophysically relevant (85)Rb(p,n)(85)Sr reaction has been measured by activation between 2.16

KW - MODEL

KW - PROCESS NUCLEOSYNTHESIS

KW - FINITE NUCLEI

KW - REACTION-RATES

KW - P-PROCESS

KW - HARD-CORE INTERACTION

U2 - 10.1103/PhysRevLett.101.191101

DO - 10.1103/PhysRevLett.101.191101

M3 - Letter

SN - 0031-9007

VL - 101

JO - Physical Review Letters

JF - Physical Review Letters

IS - 19

M1 - 191101

ER -

Coulomb Suppression of the Stellar Enhancement Factor

Abstract

Keywords

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