Bulletin of the American Physical Society
6th Joint Meeting of the APS Division of Nuclear Physics and the Physical Society of Japan
Sunday–Friday, November 26–December 1 2023; Hawaii, the Big Island
Session D04: Minisymposium: Exotic Hadrons I
9:00 AM–11:30 AM,
Wednesday, November 29, 2023
Hilton Waikoloa Village
Room: Kings 2
Chair: Elena Santopinto, INFN-Frascati Rome
Abstract: D04.00008 : Weak decay of heavy hadrons based on the dynamical supersymmetry of anti s quark and ud diquark*
11:00 AM–11:15 AM
Presenter:
Harunobu Akiyama
(Tokyo Institute of technology)
Authors:
Harunobu Akiyama
(Tokyo Institute of technology)
Daisuke Jido
(Tokyo Institute of technology)
Leupold Stefan
(Uppsala univercity)
In this study, we focus on the weak decay of heavy hadrons in order to investigate the symmetry of the quark wavefunction in these heavy hadrons. For example, if anti s quark and ud diquark are spectators, for the three decay processes Λb → Λc π- and anti B0s → D+(*)s π- the V(3) symmetry allows us to write the decay amplitudes in the same form except for the spin transitions. Therefore, we can derive a relationship equation which include the effect of mass symmetry breaking that holds between the decay rates of these three decay processes. The equation reproduces the experimental data well. We will make the same argument comprehensively for decay processes for which experimental decay rates are available.
*supported by Grants-in-Aid for Scientific Research from JSPS (JP21K03530, JP22H04917, JP23K03427, 23KJ0947)
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