Gamow-Teller Transitions and beta-decay Half-life in Proton Rich pf-shell Nuclei

Fujita Y; Adachi T; Blank B; von Brentano P; Berg GPA; Fujita H; Fujita K; Hatanaka K; Nakanishi K; Negret A; Lucia Popescu; Rubio B; Shimbara Y; Shimizu Y; Tameshinge Y; Tamii A; Yosoi M; Zell K.O.; Dieter Pauwels

Gamow-Teller Transitions and beta-decay Half-life in Proton Rich pf-shell Nuclei

Fujita Y, Adachi T, Blank B, von Brentano P, Berg GPA, Fujita H, Fujita K, Hatanaka K, Nakanishi K, Negret A, Lucia Popescu, Rubio B, Shimbara Y, Shimizu Y, Tameshinge Y, Tamii A, Yosoi M, Zell K.O., Dieter Pauwels

Research output › peer-review

Abstract

In violent neutrino-induced reactions at the core-collapse stage of type II supernovae, Gamow-Teller (GT) transitions starting from stable as well as unstable pf-shell nuclei play important roles. In the beta-decay study of these unstable pf-shell nuclei, half-lives can be measured rather accurately. On the other hand, in high-resolution (3He,t) charge-exchange reactions at 0 degrees, individual GT transitions up to high excitations can be studied. Assuming the isospin symmetry for the strengths of Tz, = +/- 2 -> +/- 1 analogous GT transitions, we present a "merged analysis" for the determination of GT transition strengths starting from proton-rich Tz = -2 nuclei. We applied this analysis to the A = 52, T = 2 system, and it was found that the GT transitions and the properties of the 52Ni beta decay can be understood better by combining the mirror GT strength distribution obtained from the 52Cr(3He,t) reaction.

Original language	English
Title of host publication	Tours Symposium on Nuclear Physics and Astrophysics - VII
Place of Publication	Melville, New York, United States
Pages	297-300
Volume	1
State	Published - Jun 2010
Event	Tours Symposium on Nuclear Physics and Astrophysics - VII - Kobe Duration: 16 Nov 2009 → 20 Nov 2009

Publication series

Name	AIP Conference Proceedings
Number	1238

Conference

Conference	Tours Symposium on Nuclear Physics and Astrophysics - VII
Country/Territory	Japan
City	Kobe
Period	2009-11-16 → 2009-11-20

Cite this

Y, Fujita ; T, Adachi ; B, Blank ; P, von Brentano ; GPA, Berg ; H, Fujita ; K, Fujita ; K, Hatanaka ; K, Nakanishi ; A, Negret ; Popescu, Lucia ; B, Rubio ; Y, Shimbara ; Y, Shimizu ; Y, Tameshinge ; A, Tamii ; M, Yosoi ; K.O., Zell ; Pauwels, Dieter. / Gamow-Teller Transitions and beta-decay Half-life in Proton Rich pf-shell Nuclei. Tours Symposium on Nuclear Physics and Astrophysics - VII. Vol. 1 Melville, New York, United States, 2010. pp. 297-300 (AIP Conference Proceedings; 1238).

@inproceedings{a7f7ef26f0ed41f08535c4daa10ec710,

title = "Gamow-Teller Transitions and beta-decay Half-life in Proton Rich pf-shell Nuclei",

abstract = "In violent neutrino-induced reactions at the core-collapse stage of type II supernovae, Gamow-Teller (GT) transitions starting from stable as well as unstable pf-shell nuclei play important roles. In the beta-decay study of these unstable pf-shell nuclei, half-lives can be measured rather accurately. On the other hand, in high-resolution (3He,t) charge-exchange reactions at 0 degrees, individual GT transitions up to high excitations can be studied. Assuming the isospin symmetry for the strengths of Tz, = +/- 2 -> +/- 1 analogous GT transitions, we present a {"}merged analysis{"} for the determination of GT transition strengths starting from proton-rich Tz = -2 nuclei. We applied this analysis to the A = 52, T = 2 system, and it was found that the GT transitions and the properties of the 52Ni beta decay can be understood better by combining the mirror GT strength distribution obtained from the 52Cr(3He,t) reaction.",

keywords = "nuclear physics, isospin symmetry, charge-exchange reactions, beta decay",

author = "Fujita Y and Adachi T and Blank B and P, {von Brentano} and Berg GPA and Fujita H and Fujita K and Hatanaka K and Nakanishi K and Negret A and Lucia Popescu and Rubio B and Shimbara Y and Shimizu Y and Tameshinge Y and Tamii A and Yosoi M and Zell K.O. and Dieter Pauwels",

year = "2010",

month = jun,

language = "English",

isbn = "978-0-7354-0784-8",

volume = "1",

series = "AIP Conference Proceedings",

number = "1238",

pages = "297--300",

booktitle = "Tours Symposium on Nuclear Physics and Astrophysics - VII",

note = "Tours Symposium on Nuclear Physics and Astrophysics - VII ; Conference date: 16-11-2009 Through 20-11-2009",

}

Y, F, T, A, B, B, P, VB, GPA, B, H, F, K, F, K, H, K, N, A, N, Popescu, L, B, R, Y, S, Y, S, Y, T, A, T, M, Y, K.O., Z & Pauwels, D 2010, Gamow-Teller Transitions and beta-decay Half-life in Proton Rich pf-shell Nuclei. in Tours Symposium on Nuclear Physics and Astrophysics - VII. vol. 1, AIP Conference Proceedings, no. 1238, Melville, New York, United States, pp. 297-300, Tours Symposium on Nuclear Physics and Astrophysics - VII, Kobe, Japan, 2009-11-16.

Gamow-Teller Transitions and beta-decay Half-life in Proton Rich pf-shell Nuclei. / Y, Fujita; T, Adachi; B, Blank; P, von Brentano; GPA, Berg; H, Fujita; K, Fujita; K, Hatanaka; K, Nakanishi; A, Negret; Popescu, Lucia; B, Rubio; Y, Shimbara; Y, Shimizu; Y, Tameshinge; A, Tamii; M, Yosoi; K.O., Zell; Pauwels, Dieter (null).

Tours Symposium on Nuclear Physics and Astrophysics - VII. Vol. 1 Melville, New York, United States, 2010. p. 297-300 (AIP Conference Proceedings; No. 1238).

Research output › peer-review

TY - GEN

T1 - Gamow-Teller Transitions and beta-decay Half-life in Proton Rich pf-shell Nuclei

AU - Y, Fujita

AU - T, Adachi

AU - B, Blank

AU - P, von Brentano

AU - GPA, Berg

AU - H, Fujita

AU - K, Fujita

AU - K, Hatanaka

AU - K, Nakanishi

AU - A, Negret

AU - Popescu, Lucia

AU - B, Rubio

AU - Y, Shimbara

AU - Y, Shimizu

AU - Y, Tameshinge

AU - A, Tamii

AU - M, Yosoi

AU - K.O., Zell

A2 - Pauwels, Dieter

PY - 2010/6

Y1 - 2010/6

N2 - In violent neutrino-induced reactions at the core-collapse stage of type II supernovae, Gamow-Teller (GT) transitions starting from stable as well as unstable pf-shell nuclei play important roles. In the beta-decay study of these unstable pf-shell nuclei, half-lives can be measured rather accurately. On the other hand, in high-resolution (3He,t) charge-exchange reactions at 0 degrees, individual GT transitions up to high excitations can be studied. Assuming the isospin symmetry for the strengths of Tz, = +/- 2 -> +/- 1 analogous GT transitions, we present a "merged analysis" for the determination of GT transition strengths starting from proton-rich Tz = -2 nuclei. We applied this analysis to the A = 52, T = 2 system, and it was found that the GT transitions and the properties of the 52Ni beta decay can be understood better by combining the mirror GT strength distribution obtained from the 52Cr(3He,t) reaction.

AB - In violent neutrino-induced reactions at the core-collapse stage of type II supernovae, Gamow-Teller (GT) transitions starting from stable as well as unstable pf-shell nuclei play important roles. In the beta-decay study of these unstable pf-shell nuclei, half-lives can be measured rather accurately. On the other hand, in high-resolution (3He,t) charge-exchange reactions at 0 degrees, individual GT transitions up to high excitations can be studied. Assuming the isospin symmetry for the strengths of Tz, = +/- 2 -> +/- 1 analogous GT transitions, we present a "merged analysis" for the determination of GT transition strengths starting from proton-rich Tz = -2 nuclei. We applied this analysis to the A = 52, T = 2 system, and it was found that the GT transitions and the properties of the 52Ni beta decay can be understood better by combining the mirror GT strength distribution obtained from the 52Cr(3He,t) reaction.

KW - nuclear physics

KW - isospin symmetry

KW - charge-exchange reactions

KW - beta decay

UR - http://ecm.sckcen.be/OTCS/llisapi.dll/open/ezp_116120

UR - http://knowledgecentre.sckcen.be/so2/bibref/8348

M3 - In-proceedings paper

SN - 978-0-7354-0784-8

VL - 1

T3 - AIP Conference Proceedings

SP - 297

EP - 300

BT - Tours Symposium on Nuclear Physics and Astrophysics - VII

CY - Melville, New York, United States

T2 - Tours Symposium on Nuclear Physics and Astrophysics - VII

Y2 - 16 November 2009 through 20 November 2009

ER -