Quasi-two-body decays of nonstrange baryons.
نویسندگان
چکیده
We examine the decays of nonstrange baryons to the final states ∆π, Nρ, Nη, Nη, Nω, N 1 2 + (1440)π, and ∆32 + (1600)π, in a relativized pair-creation (P0) model which has been developed in a previous study of the Nπ decays of the same baryon states. As it is our goal to provide a guide for the possible discovery of new baryon states at CEBAF and elsewhere, we examine the decays of resonances which have already been seen in the partial-wave analyses, along with those of states which are predicted by the quark model but which remain undiscovered. The level of agreement between our calculation and the available widths from the partial-wave analyses is encouraging.
منابع مشابه
New Baryons in the and ! Channels
The decays of excited nonstrange baryons into the final states ∆η and ∆ω are examined in a relativized quark pair creation model. The wavefunctions and parameters of the model are fixed by previous calculations of Nπ and Nππ, etc., decays through various quasi-two body channels including Nη and Nω. Our results show that the combination of thresholds just below the region of interest and the iso...
متن کاملStrange Decays of Nonstrange Baryons
The strong decays of excited nonstrange baryons into the final states ΛK, ΣK, and for the first time into Λ(1405)K, Λ(1520)K, Σ(1385)K, ΛK∗, and ΣK∗, are examined in a relativized quark pair creation model. The wave functions and parameters of the model are fixed by previous calculations of Nπ and Nππ, etc., decays. Our results show that it should be possible to discover several new negative pa...
متن کاملStrong Decays of Nonstrange Q I Introduction Ii Method of Calculation
We study strong decays of nonstrange baryons by making use of the algebraic approach to hadron structure. Within this framework we derive closed expressions for decay widths in an elementary-meson emission model and use these to analyze the experimental data for N A large amount of experimental data was accumulated in the 1960's and 1970's on the spectroscopy of light hadrons. These data led fi...
متن کاملar X iv : n uc l - th / 9 60 80 57 v 2 1 8 N ov 1 99 6 Strong decays of nonstrange q 3 baryons
متن کامل
A SU ( 4 ) ⊗ O ( 3 ) scheme for nonstrange baryons
A SU (4) ⊗ O(3) scheme for nonstrange baryons Abstract. We show that nonstrange baryon resonances can be classified according to multiplets of SU (4)⊗ O(3). We identify spectral regularities and degeneracies that allow us to predict the high spin spectrum from 2 to 3 GeV.
متن کاملذخیره در منابع من
با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید
عنوان ژورنال:
- Physical review. D, Particles and fields
دوره 49 9 شماره
صفحات -
تاریخ انتشار 1994