Deuteron photodisintegration by polarized photons in the region of the d⁎(2380)

Deuteron photodisintegration by polarized photons in the region of the d⁎(2380)
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DOI:
10.1016/j.physletb.2018.12.026
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发表时间:
2018-09
期刊:
影响因子:
4.4
通讯作者:
M. Bashkanov;S. Kay;D. Watts;C. Mullen;S. Abt;P. Achenbach;P. Adlarson;F. Afzal;Z. Ahmed
M. Bashkanov;S. Kay;D. Watts;C. Mullen;S. Abt;P. Achenbach;P. Adlarson;F. Afzal;Z. Ahmed
中科院分区:
物理与天体物理2区
文献类型:
--
作者:
M. Bashkanov;S. Kay;D. Watts;C. Mullen;S. Abt;P. Achenbach;P. Adlarson;F. Afzal;Z. Ahmed

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我们报道了第一次在420<Eγ→<620 MeV的光子能量范围内,大范围测量了束流-自旋不对称性(γ→_d,→_p,n)。这一测量为Δ共振以上的光解机制和最近发现的d⁎(2 380)六夸克的光耦合提供了重要的新约束。
We report the first large-acceptance measurement of the beam–spin asymmetry for deuteron photodisintegration (γ→ d→ p n) in the photon energy range 420< E γ< 620 MeV. The measurement provides important new constraints on the mechanisms of photodisintegration above the Δ resonance and on the photocoupling of the recently discovered d⁎(2380) hexaquark.