Evaluation of experimental constraints on the Ti 44 (α,p) v 47 reaction cross section relevant for supernovae

K. A. Chipps; P. Adsley; M. Couder; W. R. Hix; Z. Meisel; Konrad Schmidt

doi:10.1103/PhysRevC.102.035806

Evaluation of experimental constraints on the Ti 44 (α,p) v 47 reaction cross section relevant for supernovae

K. A. Chipps, P. Adsley, M. Couder, W. R. Hix, Z. Meisel, Konrad Schmidt

Nuclear Structure and Nuclear Astrophysi

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

3 Scopus citations

Abstract

Due to its importance as an astronomical observable in core-collapse supernovae (CCSNe), the reactions producing and destroying Ti44 must be well constrained. Generally, statistical model calculations such as Hauser-Feshbach are employed when experimental cross sections are not available, but the variation in such adopted rates can be large. Here, data from the literature is compared with statistical model calculations of the Ti44(α,p)V47 reaction cross section and used to constrain the possible reaction rate variation over the temperatures relevant to CCSNe. Suggestions for targeted future measurements are given.

Original language	English
Article number	035806
Journal	Physical Review C
Volume	102
Issue number	3
DOIs	https://doi.org/10.1103/PhysRevC.102.035806
State	Published - Sep 2020

Funding

This material is based upon work supported by the U.S. Department of Energy, Office of Science, Office of Nuclear Physics under Contract No. DE-AC05-00OR22725 (ORNL), and Grants No. DE-FG02-88ER40387, No. DE-NA0003909, and No. DE-SC0019042, and by the National Science Foundation under Grants No. PHY-1430152 (JINA Center for the Evolution of the Elements), No. PHY-1913531, and No. PHY-1713857. P.A. acknowledges the support of a Claude Leon Foundation Postdoctoral Fellowship.

Access to Document

10.1103/PhysRevC.102.035806

Cite this

@article{57dde7295cd049a597d8f7c48be0228b,

title = "Evaluation of experimental constraints on the Ti 44 (α,p) v 47 reaction cross section relevant for supernovae",

abstract = "Due to its importance as an astronomical observable in core-collapse supernovae (CCSNe), the reactions producing and destroying Ti44 must be well constrained. Generally, statistical model calculations such as Hauser-Feshbach are employed when experimental cross sections are not available, but the variation in such adopted rates can be large. Here, data from the literature is compared with statistical model calculations of the Ti44(α,p)V47 reaction cross section and used to constrain the possible reaction rate variation over the temperatures relevant to CCSNe. Suggestions for targeted future measurements are given.",

author = "Chipps, {K. A.} and P. Adsley and M. Couder and Hix, {W. R.} and Z. Meisel and Konrad Schmidt",

note = "Publisher Copyright: {\textcopyright} 2020 American Physical Society. ",

year = "2020",

month = sep,

doi = "10.1103/PhysRevC.102.035806",

language = "English",

volume = "102",

journal = "Physical Review C",

issn = "2469-9985",

publisher = "American Physical Society",

number = "3",

}

TY - JOUR

T1 - Evaluation of experimental constraints on the Ti 44 (α,p) v 47 reaction cross section relevant for supernovae

AU - Chipps, K. A.

AU - Adsley, P.

AU - Couder, M.

AU - Hix, W. R.

AU - Meisel, Z.

AU - Schmidt, Konrad

PY - 2020/9

Y1 - 2020/9

N2 - Due to its importance as an astronomical observable in core-collapse supernovae (CCSNe), the reactions producing and destroying Ti44 must be well constrained. Generally, statistical model calculations such as Hauser-Feshbach are employed when experimental cross sections are not available, but the variation in such adopted rates can be large. Here, data from the literature is compared with statistical model calculations of the Ti44(α,p)V47 reaction cross section and used to constrain the possible reaction rate variation over the temperatures relevant to CCSNe. Suggestions for targeted future measurements are given.

AB - Due to its importance as an astronomical observable in core-collapse supernovae (CCSNe), the reactions producing and destroying Ti44 must be well constrained. Generally, statistical model calculations such as Hauser-Feshbach are employed when experimental cross sections are not available, but the variation in such adopted rates can be large. Here, data from the literature is compared with statistical model calculations of the Ti44(α,p)V47 reaction cross section and used to constrain the possible reaction rate variation over the temperatures relevant to CCSNe. Suggestions for targeted future measurements are given.

UR - http://www.scopus.com/inward/record.url?scp=85092763084&partnerID=8YFLogxK

U2 - 10.1103/PhysRevC.102.035806

DO - 10.1103/PhysRevC.102.035806

M3 - Article

AN - SCOPUS:85092763084

SN - 2469-9985

VL - 102

JO - Physical Review C

JF - Physical Review C

IS - 3

M1 - 035806

ER -

Evaluation of experimental constraints on the Ti 44 (α,p) v 47 reaction cross section relevant for supernovae

Abstract

Funding

Access to Document

Other files and links

Fingerprint

Cite this