منابع مشابه
Secondary Wave (s-wave)
Discussion S waves are seismic body waves meaning they travel through the Earth’s interior. Their velocity is slower than that of P waves, and they are normally the second major phase to be observed on a seismogram, and are therefore also referred to as secondary waves. In the Earth’s crust, S wave velocities are typically 3–4 km/s. S waves are usually larger in amplitude than P waves and may c...
متن کاملThe Dπ S-wave
A pole in the Dπ S-wave analogous to the σ and κ is predicted at M− iΓ/2 = 2098± 40− i(260 ± 40) MeV. The main objective of this paper is to provide formulae for fitting it to data. PACS numbers: 12.39.Ki, 13.25.Gv, 14.40.Lb. There are well-known σ and κ poles in ππ and Kπ. The objective of this paper is to predict analogous poles in Dπ and Bπ S-waves and provide appropriate parametrisations of...
متن کاملS-matrix for s-wave gravitational scattering
In the s-wave approximation the 4D Einstein gravity with scalar fields can be reduced to an effective 2D dilaton gravity coupled nonminimally to the matter fields. We study the leading order (tree level) vertices. The 4-particle matrix element is calculated explicitly. It is interpreted as scattering with formation of a virtual black hole state. As one novel feature we predict the gravitational...
متن کاملEffects of S - Wave Thresholds
The opening of a new S-wave threshold is frequently accompanied by an abrupt dip in the magnitude of an amplitude for an already-open channel. One familiar example is the behavior of the I = 0 S-wave ππ scattering amplitude atKK̄ threshold. Numerous other examples of this phenomenon in recent data are noted, and a unified description of the underlying dynamics is sought. PACS numbers: 11.55.-m, ...
متن کاملConfinement-induced p-wave resonances from s-wave interactions
Article is made available in accordance with the publisher's policy and may be subject to US copyright law. Please refer to the publisher's site for terms of use. The MIT Faculty has made this article openly available. Please share how this access benefits you. Your story matters. We show that a purely s-wave interaction in three dimensions (3D) can induce higher partial-wave resonances in mixe...
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ژورنال
عنوان ژورنال: Journal of Physics G: Nuclear and Particle Physics
سال: 2009
ISSN: 0954-3899,1361-6471
DOI: 10.1088/0954-3899/36/7/075003