6533b7d7fe1ef96bd1267836
RESEARCH PRODUCT
Observation of Coulomb-assisted nuclear bound state of $��^-$-$^{14}$N system
S. H. HayakawaK. AgariJ. K. AhnT. AkaishiY. AkazawaS. AshikagaB. BassalleckS. BleserH. EkawaY. EndoY. FujikawaN. FujiokaM. FujitaR. GotoY. HanS. HasegawaT. HashimotoT. HayakawaE. HayataK. HicksE. HiroseM. HiroseR. HondaK. HoshinoS. HoshinoK. HosomiS. H. HwangY. IchikawaM. IchikawaK. ImaiK. InabaY. IshikawaH. ItoK. ItoW. S. JungS. KanatsukiH. KanauchiA. KasagiT. KawaiM. H. KimS. H. KimS. KinbaraR. KiuchiH. KobayashiK. KobayashiT. KoikeA. KoshikawaJ. Y. LeeT. L. MaS. Y. MatsumotoM. MinakawaK. MiwaA. T. MoeT. J. MoonM. MoritsuY. NagaseY. NakadaM. NakagawaD. NakashimaK. NakazawaT. NanamuraM. NarukiA. N. L. NyawY. OguraM. OhashiK. OueS. OzawaJ. PochodzallaS. Y. RyuH. SakoS. SatoY. SatoF. SchuppK. ShirotoriM. M. SoeM. K. SoeJ. Y. SohnH. SugimuraK. N. SuzukiH. TakahashiT. TakahashiT. TakedaH. TamuraK. TanidaA. M. M. TheintK. T. TintY. ToyamaM. UkaiE. UmezakiT. WatabeK. WatanabeT. O. YamamotoS. B. YangC. S. YoonJ. YoshidaM. YoshimotoD. H. ZhangZ. Zhangsubject
FOS: Physical sciencesNuclear Experiment (nucl-ex)description
In an emulsion-counter hybrid experiment performed at J-PARC, a $��^-$ absorption event was observed which decayed into twin single-$��$ hypernuclei. Kinematic calculations enabled a unique identification of the reaction process as $��^{-} + ^{14}$N$\ \rightarrow\ ^{10}_��$Be + $^5_��$He. For the binding energy of the $��^{-}$ hyperon in the $��^-$-$^{14}$N system a value of $1.27 \pm 0.21$ MeV was deduced. The energy level of $��^-$ is likely a nuclear $1p$ state which indicates a weak $��N$-$����$ coupling.
| year | journal | country | edition | language |
|---|---|---|---|---|
| 2020-01-01 |