6533b7dbfe1ef96bd1270b2f
RESEARCH PRODUCT
Decay pion spectroscopy: a new approach
R. A. MontgomeryH. VardanyanVachik KhachatryanV. KakoyanR. AjvazyanSatoshi NakamuraK. LivingstonPatrick AchenbachN.e. GrigoryanAmur MargaryanY. ToyamaS. ZhamkochyanJ. PochodzallaSho NagaoJ. R. M. Annandsubject
PhysicsNuclear and High Energy PhysicsLuminosity (scattering theory)ProtonNuclear TheoryGamma rayFOS: Physical sciencesParticle acceleratorElectronlaw.inventionNuclear physicsPionRecoillawPhysics::Accelerator PhysicsHigh Energy Physics::ExperimentNuclear Experiment (nucl-ex)SpectroscopyNuclear ExperimentInstrumentationNuclear Experimentdescription
We propose a new experiment for decay pion spectroscopy of light hypernuclei at electron- and proton-beam facilities, using the recoil distance technique for separation of produced hypernuclei and a magnetic spectrometer for precise measurement of the decay pion momentum. Low-pressure MWPCs are advocated for low-energy recoil detection as they provide position and time information and are highly insensitive to gamma-ray and electron background. The position and timing characteristics of such a recoil detector were studied using ~5 MeV {\alpha}-particles. By using the present proposed approach the rate of the detected hypernuclei can be increased by one-to-two orders of magnitude compared to a recent experiment carried out at the MAMI electron accelerator in Mainz. The possibility of realizing a high luminosity decay pion spectroscopy experiment with proton beams is also discussed.
| year | journal | country | edition | language |
|---|---|---|---|---|
| 2019-02-08 |