Core-excited states of [sub [Lambda]][sup 12]C hypernuclei formed in the ([pi][sup +],[ital K][sup +]) reaction

Journal Article · Mon Jan 09 04:00:00 EST 1995 · Physical Review Letters; (United States)

DOI:https://doi.org/10.1103/PhysRevLett.74.224· OSTI ID:6643422

Hasegawa, T; Hashimoto, O; Homma, S; Miyachi, T; Nagae, T; Sekimoto, M; Shibata, T; Sakaguchi, H; Takahashi, T; Aoki, K; Noumi, H; Bhang, H; Youn, M; Gavrilov, Y; Ajimura, S; Kishimoto, T; Ohkusu, A; Maeda, K; Sawafta, R

A spectroscopic study of the [sub [Lambda]][sup 12]C hypernucleus by the ([pi][sup +],[ital K][sup +]) reaction has been performed using a new superconducting kaon spectrometer (INS-SKS) at the KEK 12 GeV Proton Synchrotron with an energy resolution of 2 MeV (FWHM). In addition to two prominent peaks which correspond to the [ital s] and [ital p] orbitals of a [Lambda] hyperon, for the first time two smaller peaks were clearly observed at excitation energies of 2.6 and 6.9 MeV. These two peaks are interpreted as states where the [sup 11][ital C] excited core and a [Lambda] hyperon in the [ital s] orbit are weakly coupled. The excitation energies and the cross sections of these peaks provide information on the [Lambda][ital N] interaction.

• OSTI ID: 6643422
• Journal Information: Physical Review Letters; (United States), Journal Name: Physical Review Letters; (United States) Vol. 74:2; ISSN 0031-9007; ISSN PRLTAO
• Country of Publication: United States
• Language: English

Related Subjects

663110* -- General & Average Properties of Nuclei & Nuclear Energy Levels-- (1992-)
663460 -- Meson- & Hyperon-induced Reactions & Scattering-- (1992-)
73 NUCLEAR PHYSICS AND RADIATION PHYSICS
ACCELERATORS
BARYONS
BOSONS
CARBON 12
CARBON ISOTOPES
CHARGED-PARTICLE REACTIONS
CROSS SECTIONS
CYCLIC ACCELERATORS
ELEMENTARY PARTICLES
ENERGY LEVELS
EVEN-EVEN NUCLEI
EXCITED STATES
FERMIONS
HADRON REACTIONS
HADRONS
HYPERNUCLEI
HYPERONS
ISOTOPES
KAONS
KAONS PLUS
LAMBDA BARYONS
LIGHT NUCLEI
MEASURING INSTRUMENTS
MESON REACTIONS
MESONS
NUCLEAR FRAGMENTS
NUCLEAR REACTIONS
NUCLEI
PION PLUS REACTIONS
PION REACTIONS
PSEUDOSCALAR MESONS
SPECTROMETERS
SPECTROSCOPY
STABLE ISOTOPES
STRANGE MESONS
STRANGE PARTICLES
SYNCHROTRONS