Regge behaviors in orbitally excited spectroscopy of charmed and bottom baryons

New Predictions for Charmed and Bottom Baryons

I review the recent proposal that there are new isotriplet heavy baryons with masses approximately 2380 MeV and 5760 MeV. This prediction follows from the application of heavy spin-flavor and light SU(3) symmetries to the observed charmed and bottom baryon states. It also entails assumptions about the spin and parity quantum numbers of the observed states which are different than is commonly su...

Spectroscopy of doubly charmed baryons:

Excited-state spectroscopy of triply-bottom baryons from lattice QCD

The spectrum of baryons containing three b quarks is calculated in nonperturbative QCD, using the lattice regularization. The energies of ten excited bbb states with J = 1 2 + , 3 2 + , 5 2 + , 7 2 + , 1 2 − , and 3 2 − are determined with high precision. A domain-wall action is used for the up-, downand strange quarks, and the bottom quarks are implemented with NRQCD. The computations are done...

Spectroscopy and Strong Decays of Charmed Baryons

In the past years many new excited charmed baryon states have been discovered by BaBar, Belle and CLEO. In particular, B factories have provided a very rich source of charmed baryons both from B decays and from the continuum ee → cc̄. A new era for the charmed baryon spectroscopy is opened by the rich mass spectrum and the relatively narrow widths of the excited states. Experimentally and theore...

Measurement of semileptonic B decays into orbitally excited charmed mesons.

We present a study of B decays into semileptonic final states containing charged and neutral D1(2420) and D_{2};{*}(2460). The analysis is based on a data sample of 208 fb;{-1} collected at the Upsilon(4S) resonance with the BABAR detector at the PEP-II asymmetric-energy B factory at SLAC. With a simultaneous fit to four different decay chains, the semileptonic branching fractions are extracted...