Figure 1 shows a partial breakdown of the Ds＋ branching fractions. The rest of this note is about how the figure was constructed. The values shown make heavy use of CLEO measurements of inclusive branching fractions ...Figure 1 shows a partial breakdown of the Ds＋ branching fractions. The rest of this note is about how the figure was constructed. The values shown make heavy use of CLEO measurements of inclusive branching fractions [1]. For references to other data cited in the following, see the Listings.展开更多
The figure below shows the measured magnetic moments of the stable baryons. It also shows the predictions of the simplest quark model, using the measured p, n, and A moments as input. In this model, the moments are [1]
This note tells （1） how SU（n） particle multiplets are identified or labeled, （2） how to find the number of particles in a multiplet from its label, （3） how to draw the Young diagram for a multiplet, and （4） ...This note tells （1） how SU（n） particle multiplets are identified or labeled, （2） how to find the number of particles in a multiplet from its label, （3） how to draw the Young diagram for a multiplet, and （4） how to use Young diagrams to determine the overall multiplet structure of a composite system, such as a 3-quark or a meson-baryon system, In much of the literature, the word ＂representation＂ is used where we use ＂multiplet,＂ and ＂tableau＂ is used where we use ＂diagram.＂展开更多
（Note added November 2015.） Since the 2014 Review, there have been three papers that improved the values of the masses and/or widths of the ∑（2455）, ∑（2520）,
8.1. Introduction We introduced in the 1986 edition [1] a new naming scheme for the hadrons. Changes from older terminology affected mainly the heavier mesons made of the light （u, d, and s） quarks. Old and new nam...8.1. Introduction We introduced in the 1986 edition [1] a new naming scheme for the hadrons. Changes from older terminology affected mainly the heavier mesons made of the light （u, d, and s） quarks. Old and new names were listed alongside until 1994. Names also change from edition to edition because some characteristic like mass or spin changes. The Summary Tables give both the new and old names whenever a change occurred.展开更多
文摘Figure 1 shows a partial breakdown of the Ds＋ branching fractions. The rest of this note is about how the figure was constructed. The values shown make heavy use of CLEO measurements of inclusive branching fractions [1]. For references to other data cited in the following, see the Listings.
文摘The figure below shows the measured magnetic moments of the stable baryons. It also shows the predictions of the simplest quark model, using the measured p, n, and A moments as input. In this model, the moments are [1]
文摘This note tells （1） how SU（n） particle multiplets are identified or labeled, （2） how to find the number of particles in a multiplet from its label, （3） how to draw the Young diagram for a multiplet, and （4） how to use Young diagrams to determine the overall multiplet structure of a composite system, such as a 3-quark or a meson-baryon system, In much of the literature, the word ＂representation＂ is used where we use ＂multiplet,＂ and ＂tableau＂ is used where we use ＂diagram.＂
文摘（Note added November 2015.） Since the 2014 Review, there have been three papers that improved the values of the masses and/or widths of the ∑（2455）, ∑（2520）,
文摘8.1. Introduction We introduced in the 1986 edition [1] a new naming scheme for the hadrons. Changes from older terminology affected mainly the heavier mesons made of the light （u, d, and s） quarks. Old and new names were listed alongside until 1994. Names also change from edition to edition because some characteristic like mass or spin changes. The Summary Tables give both the new and old names whenever a change occurred.
