6533b856fe1ef96bd12b2f1e
RESEARCH PRODUCT
Observation of Coulomb-Assisted Nuclear Bound State of Ξ−–N14 System
S. BleserHitoshi SugimuraS H HayakawaT. TakedaT. L. MaH. KanauchiD. H. ZhangJunya YoshidaT. HayakawaZ. ZhangKhin Than TintM. MinakawaM. H. KimM. HiroseT. J. MoonS. Y. MatsumotoR. KiuchiT. TakahashiManami NakagawaE. HayataJihwa LeeY. NakadaHitoshi TamuraHitoshi TamuraF. SchuppHidetaka KobayashiHiroyuki EkawaK. AgariYudai IchikawaM. OhashiKotaro ShirotoriYoko EndoB. BassalleckA. KasagiSatoshi SatoR. GotoE. UmezakiK. ItoManabu MoritsuS. AshikagaS. AshikagaYuya AkazawaMasahiro YoshimotoYoshikazu IshikawaK. MiwaHiroyuki SakoYuki FujikawaM. IchikawaJ. PochodzallaS. Y. RyuA. T. MoeKenichi ImaiHiroki ItoKazuya WatanabeTakashi YamamotoS. H. HwangK. InabaS. OzawaN. FujiokaS. H. KimHitoshi TakahashiErina HiroseShoichi HasegawaY. NagaseR HondaSeongbae YangK. HicksS. HoshinoT. HashimotoJ. Y. SohnT. AkaishiYuki SatoA. N. L. NyawT. NanamuraT. NanamuraShunsuke KanatsukiY. ToyamaAye Moh Moh TheintM. M. SoeMyint Kyaw SoeTakeshi KoikeY HanJ. K. AhnKenji HosomiKensuke KobayashiS. KinbaraK. HoshinoMegumi NarukiMegumi NarukiA. KoshikawaK. TanidaC. S. YoonManami FujitaD. NakashimaK. OueToyoki WatabeW. S. JungKazuma NakazawaTakayoshi KawaiY. OguraMifuyu UkaiMifuyu UkaiKazuhiro Suzukisubject
PhysicsBinding energyHyperonGeneral Physics and AstronomyState (functional analysis)Coupling (probability)01 natural sciences0103 physical sciencesBound stateCoulombAbsorption (logic)Atomic physics010306 general physicsEnergy (signal processing)description
In an emulsion-counter hybrid experiment performed at J-PARC, a Ξ^{-} absorption event was observed which decayed into twin single-Λ hypernuclei. Kinematic calculations enabled a unique identification of the reaction process as Ξ^{-}+^{14}N→_{Λ}^{10}Be+_{Λ}^{5}He. For the binding energy of the Ξ^{-} hyperon in the Ξ^{-}-^{14}N system a value of 1.27±0.21 MeV was deduced. The energy level of Ξ^{-} is likely a nuclear 1p state which indicates a weak ΞN-ΛΛ coupling.
| year | journal | country | edition | language |
|---|---|---|---|---|
| 2021-02-11 | Physical Review Letters |