New precision measurement of the 3He(4He,γ) 7Be cross section

B.S. Nara Singh; M. Hass; Y. Nir-El; G. Haquin

doi:10.1103/PhysRevLett.93.262503

New precision measurement of the 3He(4He,γ) 7Be cross section

B.S. Nara Singh
, M. Hass
, Y. Nir-El
, G. Haquin

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

144 Citations (Scopus)

Abstract

The 3He(4He,γ) 7Be reaction plays an important role in determining the high energy solar neutrino flux and in understanding the abundances of primordial 7Li. This Letter reports a new precision measurement of the cross sections of this direct capture reaction, determined by measuring the ensuing 7Be activity in the region of Ec.m.=420 to 950 keV. Various recent theoretical fits to our data result in a consistent extrapolated value of S34(0)=0.53(2)(1) keV b.

Original language	English
Article number	262503
Number of pages	4
Journal	Physical Review Letters
Volume	93
DOIs	https://doi.org/10.1103/PhysRevLett.93.262503
Publication status	Published - 29 Dec 2004
Externally published	Yes

Access to Document

10.1103/PhysRevLett.93.262503

Cite this

@article{2c0413ffa0824799935d3c4908a197d3,

title = "New precision measurement of the 3He(4He,γ) 7Be cross section",

abstract = "The 3He(4He,γ) 7Be reaction plays an important role in determining the high energy solar neutrino flux and in understanding the abundances of primordial 7Li. This Letter reports a new precision measurement of the cross sections of this direct capture reaction, determined by measuring the ensuing 7Be activity in the region of Ec.m.=420 to 950 keV. Various recent theoretical fits to our data result in a consistent extrapolated value of S34(0)=0.53(2)(1) keV b.",

author = "\{Nara Singh\}, B.S. and M. Hass and Y. Nir-El and G. Haquin",

year = "2004",

month = dec,

day = "29",

doi = "10.1103/PhysRevLett.93.262503",

language = "English",

volume = "93",

journal = "Physical Review Letters",

issn = "0031-9007",

publisher = "American Physical Society",

}

TY - JOUR

T1 - New precision measurement of the 3He(4He,γ) 7Be cross section

AU - Nara Singh, B.S.

AU - Hass, M.

AU - Nir-El, Y.

AU - Haquin, G.

PY - 2004/12/29

Y1 - 2004/12/29

N2 - The 3He(4He,γ) 7Be reaction plays an important role in determining the high energy solar neutrino flux and in understanding the abundances of primordial 7Li. This Letter reports a new precision measurement of the cross sections of this direct capture reaction, determined by measuring the ensuing 7Be activity in the region of Ec.m.=420 to 950 keV. Various recent theoretical fits to our data result in a consistent extrapolated value of S34(0)=0.53(2)(1) keV b.

AB - The 3He(4He,γ) 7Be reaction plays an important role in determining the high energy solar neutrino flux and in understanding the abundances of primordial 7Li. This Letter reports a new precision measurement of the cross sections of this direct capture reaction, determined by measuring the ensuing 7Be activity in the region of Ec.m.=420 to 950 keV. Various recent theoretical fits to our data result in a consistent extrapolated value of S34(0)=0.53(2)(1) keV b.

U2 - 10.1103/PhysRevLett.93.262503

DO - 10.1103/PhysRevLett.93.262503

M3 - Letter

SN - 0031-9007

VL - 93

JO - Physical Review Letters

JF - Physical Review Letters

M1 - 262503

ER -

New precision measurement of the 3He(4He,γ) 7Be cross section

Abstract

Access to Document

Fingerprint

Cite this