scholarly journals Spin tensors associated with corotational rates and corotational integrals in continua

2007 ◽  
Vol 44 (16) ◽  
pp. 5222-5235 ◽  
Author(s):  
K. Ghavam ◽  
R. Naghdabadi
Keyword(s):  
Spin Tensors

General Properties of Higher-Spin Fermion Interaction Currents and Their Test in πN-Scattering

2021 ◽  
Vol 57 (11) ◽  
pp. 1179
Author(s):  
Yu.V. Kulish ◽  
E.V. Rybachuk
Keyword(s):  
Angular Momentum ◽  
Partial Wave ◽  
Total Angular Momentum ◽  
Mass Shell ◽  
Present Approach ◽  
Partial Wave Analysis ◽  
Wave Analysis ◽  
Fermion Propagator ◽  
Higher Spin ◽  
Spin Tensors

The currents of higher-spin fermion interactions with zero- and half-spin particles are derived. They can be used for the N*(J) ↔ Nπ-transitions (N*(J) is thenucleon resonance with the J spin). In accordance with the theorem on currents and fields, the spin-tensors of these currents are traceless, and their products with the γ-matrices and the higher-spin fermion momentum vanish, similarly to the field spin-tensors. Such currents are derived explicitly for J=3/2and 5/2. It is shown that, in the present approach, the scale dimension of a higher spin fermion propagator equals to –1 for any J ≥ 1/2. The calculations indicate that the off-mass-shell N* contributions to the s-channel amplitudes correspond to J = JπN only ( JπN is the total angular momentum of the πN-system). As contrast, in the usually exploited approaches, such non-zero amplitudes correspond to 1/2 ≤  JπN ≤ J. In particular, the usually exploited approaches give non-zero off-mass-shell contributions of the ∆(1232)-resonance to the amplitudes S31, P31( JπN = 1/2) and P33, D33(JπN = 3/2), but our approach – to P33 and D33 only. The comparison of these results with the data of the partial wave analysis on the S31-amplitude in the ∆(1232)-region shows the better agreement for the present approach.

Phenomenological evolution equations for the backstress and spin tensors

1991 ◽  
Vol 88 (1-2) ◽  
pp. 91-111 ◽  
Author(s):  
G. Z. Voyiadjis ◽  
P. I. Kattan
Keyword(s):  
Evolution Equations ◽  
Spin Tensors

On the Concomitants of Spin Tensors

1946 ◽  
Vol s2-49 (1) ◽  
pp. 307-327 ◽  
Author(s):  
D. E. Littlewood
Keyword(s):  
Spin Tensors

Covariant spin tensors in meson spectroscopy

1995 ◽  
Vol 51 (5) ◽  
pp. 2247-2261 ◽  
Author(s):  
V. Filippini ◽  
A. Fontana ◽  
A. Rotondi
Keyword(s):  
Meson Spectroscopy ◽  
Spin Tensors
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