Search for Solar Axions Produced in p(d,3He)A Reaction with Borexino Detector
Search for Solar Axions Produced in p(d,3He)A Reaction with Borexino Detector
复制标题
使用 Borexino 探测器搜索 p(d,3He)A 反应中产生的太阳轴子
DOI：
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发表时间：
2012
期刊：
影响因子：
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通讯作者：
The Borexino Collaboration
中科院分区：
文献类型：
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作者：
The Borexino Collaboration
A search for 5.5-MeV solar axions produced in the $p+d
ightarrow
m{^3He}+A (5.5
m{MeV})$ reaction was performed using the Borexino detector. The Compton conversion of axions to photons, ${
m A}+e
ightarrow e+gamma$; the axio-electric effect, ${
m A}+e+Z
ightarrow e+Z$; the decay of axions into two photons, ${
m A}
ightarrow2gamma$; and inverse Primakoff conversion on nuclei, ${
m A}+Z
ightarrowgamma+Z$, are considered. Model independent limits on axion-electron ($g_{Ae}$), axion-photon ($g_{Agamma}$), and isovector axion-nucleon ($g_{3AN}$) couplings are obtained: $|g_{Ae} imes g_{3AN}| leq 5.5 imes 10^{-13}$ and $|g_{Agamma} imes g_{3AN}| leq 4.6 imes 10^{-11}
m{GeV}^{-1}$ at $m_A <$ 1 MeV (90% c.l.). These limits are 2-4 orders of magnitude stronger than those obtained in previous laboratory-based experiments using nuclear reactors and accelerators.
A search for 5.5-MeV solar axions produced in the $p+d
ightarrow
m{^3He}+A (5.5
m{MeV})$ reaction was performed using the Borexino detector. The Compton conversion of axions to photons, ${
m A}+e
ightarrow e+gamma$; the axio-electric effect, ${
m A}+e+Z
ightarrow e+Z$; the decay of axions into two photons, ${
m A}
ightarrow2gamma$; and inverse Primakoff conversion on nuclei, ${
m A}+Z
ightarrowgamma+Z$, are considered. Model independent limits on axion-electron ($g_{Ae}$), axion-photon ($g_{Agamma}$), and isovector axion-nucleon ($g_{3AN}$) couplings are obtained: $|g_{Ae} imes g_{3AN}| leq 5.5 imes 10^{-13}$ and $|g_{Agamma} imes g_{3AN}| leq 4.6 imes 10^{-11}
m{GeV}^{-1}$ at $m_A <$ 1 MeV (90% c.l.). These limits are 2-4 orders of magnitude stronger than those obtained in previous laboratory-based experiments using nuclear reactors and accelerators.