vector meson


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vector meson

[′vek·tər ‚mā‚sän]
(particle physics)
A meson which has spin quantum number 1 and negative parity, and may be described by a vector field; examples include the ω, ρ, φ, and K * mesons.
References in periodicals archive ?
where [m.sub.V] and [f.sub.V] are the masses and decay constants of mesons V([D.sup.*.sub.s], [D.sup.*], [D.sub.s1], [D.sub.1], [K.sup.*]) and [[epsilon].sub.[mu]] is introduced as the polarization vector of the vector meson V([D.sup.*.sub.s], [D.sup.*], [D.sub.s1], D1, [K.sup.*]).
This conclusion is inconsistent with the idea of Vector Meson Dominance (VMD).
The experimental plan involves a series of measurements in two and few nucleon systems (to minimize nuclear structure effects) to determine the weak-interaction amplitudes either in the vector meson exchange model or expressed as a function of transition amplitudes between S-wave and P-wave states.
The reader won't come out knowing all there is to know about the partial width of the cross section of semileptonic vector meson decay, but he will get enough to satisfy his curiosity, while keeping his attention.
Rezaeian, "Exclusive vector meson production at high energies and gluon saturation," Physical Review D, vol.
The relevant topological tree and penguin diagrams for D [right arrow] PV are displayed in Figure 1, where P and V denote a light pseudoscalar and vector meson (representing [K.sup.[+ or -]] and [K.sup.*[+ or -]] in this paper), respectively.
Leptonic decay of a vector meson with [J.sup.PC] = [1.sup.--] quantum numbers can be pictured by the following annihilation via a virtual photon
Here, we give the part of Lagrangian with vector meson exchange which will be used for evaluation of the potential:
The inverse range parameters for pseudoscalar and vector meson, respectively, are [[beta].sub.p] = (4(m[[omega].sup.2.sub.[bar.qq]/[[absolute value of 1 + 2[A.sub.0][(N + 3/2))).sup.1/4]] and [[beta].sub.v] = (2(m[[omega].sup.2.sub.[bar.qq]/[[absolute value of 1 + 2[A.sub.0] [(N + 3/2))).sup.1/4]] and are dependent on the input kernel and contain the dynamical information, and they differ from each other only due to spin-spin interactions.
Greco, "A vector meson dominance approach to scale invariance," Physics Letters B, vol.
We insert the complete sets of appropriate vector meson (|V><V|) and scalar meson (|S><S|) states (regarding the conservation of the quantum numbers of corresponding interpolating currents) inside correlation functions equation (1).