The mass parameter of orbitally excited Λc baryons is calculated by using QCD sum rule in the framework of heavy quark effective theory. Two kinds of interpolating current for the excited heavy baryons are introduced. It is obtained that Λ̄ = 1.08 −0.104 GeV for the non-derivative current and Λ̄ = 1.06 +0.090 −0.107 GeV for the current with derivative. These results are consistent with experiment...

We report on two spectroscopy results from CDF. First, we observe the orbitally excited B∗∗ mesons in B → lDX events. We find 28 ± 6 ± 3% of light B mesons produced are B∗∗ states. A collective mass fit results in a B1 mass of 5.71± 0.02 GeV/c. Secondly, we observe 20.4 −5.5 decays of B + c →J/ψl X , with a 6.40±0.39±0.13GeV/c mass and 0.46 −0.16 ± 0.03 ps lifetime. The production rate is in re...

This is a second paper describing the calculation of spectroscopy for orbitally excited states from lattice simulations of Quantum Chromodynamics. New features include higher statistics for P-wave systems and first results for the spectroscopy of D-wave mesons and baryons, for relatively heavy quark masses. We parameterize the Coulomb gauge wave functions for P-wave and D-wave systems and compa...

In this paper, a quasi-rogue wave solution of the Camassa-Holm equation is obtained by discrete method and Hirota’s bilinear transform method. The wave’s amplitude suddenly changes high and then suddenly disappears. The whole process experiences a very short time. Waveform’s characteristics are similar to rogue waves in shallow water. This obtained solution can be used to describe the possible ...

The mass spectra of the L = 1 orbitally excited heavy baryons with light quarks in both the spin-flavor symmetric and the mixed representations are studied by the 1/Nc expansion method in the framework of the heavy quark effective theory. The mixing effect between the baryons in the two representations is also considered. The general pattern of the spectrum is predicted which will be verified b...