6533b821fe1ef96bd127aca5
RESEARCH PRODUCT
High resolution spectroscopic study ofBeΛ10
L. GanT. HornX. QiuS. DanagoulianOsamu HashimotoChhanda SamantaH. KhanalF. R. WesselmannN. TaniyaV.m. Rodriguez[No Value] NuruzzamanKazushige MaedaEd V. HungerfordW. U. BoeglinM. FujitaF. GaribaldiJ. BonoHiroki KandaSatoshi NakamuraB. S. HuPavlo BaturinPatrick AchenbachV. MaxwellZ. YeE. J. BrashKyo TsukadaL. Y. ZhuY. FujiiAmur MargaryanY. OkayasuV. TadevosyanS. A. WoodA. ChibaO. AtesW. F. VulcanT. O. YamamotoL. YaSeigo KatoP. CarterM. ElaasarB. SawatzkyA. LiyanageMasashi KanetaM. K. JonesMiroslav FurićTomofumi MarutaE. ChristyL. YuanA. MkrtchyanM. I. NiculescuChunhui ChenD. KawamaI. AlbayrakAmrendra NarayanD. GaskellY. HanK. YokotaR. AsaturyanPete MarkowitzA. AhmidouchR. De LeoD. DoiA. AsaturyanH. MkrtchyanT. SevaDarko AndroićA. MatsumuraAshot GasparianToshiyuki GogamiJoerg ReinholdA. NunezG. NiculescuS. ZhamkochyanC. NevilleL. TangJ. PochodzallaRolf EntSho NagaoM. Y. GabrielyanMichael KohlA. ShichijoM. VeilleuxTomislav PetkovićW. LuoR. A. BaduiM. Kawaisubject
PhysicsSpectrometer010308 nuclear & particles physicsBinding energyResolution (electron density)HypernucleusLambda01 natural sciencesExcited state0103 physical sciencesAtomic physicsNuclear Experiment010306 general physicsSpectroscopyGround statedescription
Spectroscopy of a Be-10(Lambda) hypernucleus was carried out at JLab Hall C using the (e, e' K+) reaction. A new magnetic spectrometer system (SPL+ HES+ HKS), specifically designed for high resolution hypernuclear spectroscopy, was used to obtain an energy spectrum with a resolution of similar to 0.78 MeV (FWHM). The well-calibrated spectrometer system of the present experiment using p(e, e' K+)Lambda, Sigma(0) reactions allowed us to determine the energy levels; and the binding energy of the ground-state peak (mixture of 1(-) and 2(-) states) was found to be B-Lambda = 8.55 +/- 0.07(stat.) +/- 0.11(sys.) MeV. The result indicates that the ground-state energy is shallower than that of an emulsion study by about 0.5 MeV which provides valuable experimental information on the charge symmetry breaking effect in the Lambda N interaction.
| year | journal | country | edition | language |
|---|---|---|---|---|
| 2016-03-10 | Physical Review C |