Excited-state-threshold resonance effects in 9Be(p,p0)9Be and 9Be(p,n)9B

Votava, H.J.; Thompson, William J.

doi:10.1016/0370-2693(72)90661-2

Cited by 8 publications

(2 citation statements)

References 17 publications

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“…understoodl-5 for some time. Although these effects are usually small and difficult to observe, some exampl es have been found in nuclear reactions 6,7 and AA scattering at KK threshold. 8 Several experiments have sought a cusp in w-p + AK' at EK threshold (1033 MeV/c) without concl usive resul ts.…”

Section: Disclaimermentioning

confidence: 99%

Search for structure in $pi$$sup -$p $Yields$ $lambda$K threshold

Nelson¹,

Knasel²,

Lindquist³

1973

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We have measured the cross section, the angular distribution, and the lambda polarization for the reaction *-p + AK'. A spark chamber spectrometer was used to collect 8400 AK' events at 14 beam momenta near EK threshold. Our data do not show the prominent cross section enhancement suggested by some previous experiments. However, detailed structure in the cross section and the angular distribution agrees well with a simple model which includes a cusp effect at EK threshold. NOTICE M AST ER This report was prepared as an account of work sponsored by the United States Government. Neither the United States nor the United States Atomic Energy Commission, nor any of their employees, nor any Of their contractors, subcontractors, or their employees, makes any warranty, express or implied, or assumes any legal liability or responsibility for the accuracy, completeness. or usefulness of any information, apparatus, DISTRIBUTION OF THIS DOCUMENT IS UNLI • ED product or process disclosed, or represents that its use would not infringe privately owned rights. DISCLAIMER This report was prepared as an account of work sponsored by an agency of the United States Government.

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Section: Disclaimermentioning

confidence: 99%

Search for structure in $pi$$sup -$p $Yields$ $lambda$K threshold

Nelson¹,

Knasel²,

Lindquist³

1973

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“…In order to make a simple model, we posit that the S n (1700) nN resonance also decays to |Zif, 1=1) and treat the threshold effect in a manner similar to Flatte et al 8 and to Votava and Thompson. 6 The AK° S-wave amplitude (with no background) …”

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confidence: 99%

Search for Structure inπ−p→ΛK0atΣK
Nelson¹,
Knasel²,
Lindquist³
et al. 1973
Phys. Rev. Lett.
12
0
13
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We have measured the cross section, the angular distribution, and the A polarization for the reaction ir~p-+ Aif°. A spark-chamber spectrometer was used to collect 8400 AK° events at fourteen beam momenta near ZK threshold. Our data do not show the prominent cross-section enhancement suggested by some previous experiments. However, detailed structure in the cross section and the angular distribution agrees well with a simple model which includes a cusp effect at Z;K threshold.

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