Bulletin of the American Physical Society
APS April Meeting 2023
Volume 68, Number 6
Minneapolis, Minnesota (Apr 15-18)
Virtual (Apr 24-26); Time Zone: Central Time
Session F03: The Unexpected Proton Resonance of 11BInvited
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Sponsoring Units: DNP Chair: Miguel Madurga, University of Tennessee Room: MG Salon B - 3rd Floor |
Sunday, April 16, 2023 8:30AM - 9:06AM |
F03.00001: 11B proton resonance via 11Be beta decay Invited Speaker: Saul Beceiro Novo
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Sunday, April 16, 2023 9:06AM - 9:42AM |
F03.00002: Observation of a Near-Threshold Proton Resonance in 11B Invited Speaker: Eilens Lopez-Saavedra
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Sunday, April 16, 2023 9:42AM - 10:18AM |
F03.00003: Near-threshold resonances and the beta-delayed proton emission of the halo nucleus 11Be Invited Speaker: Witold Nazarewicz There are numerous examples of narrow resonances in light nuclei that can be found in the proximity of particle decay thresholds. Probably the most famous resonance of this kind is the excited 0+ Hoyle state of 12C very close to the alpha-particle separation energy. Based on studies in the shell model embedded in the continuum, it has been conjectured that the coupling to the decay channel(s) leads to a new kind of near-threshold collectivity, which may result in a formation of a single "aligned eigenstate" of the system that carries many characteristics of a nearby decay channel. This mechanism provides a general explanation, based on the configuration mixing approach to open quantum systems, of the widespread appearance of cluster or correlated states in the vicinity of cluster emission thresholds. |
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