Increasing versus Decreasing Phase Convention

2013 ◽  
Keyword(s):  
Phase Convention

Impossibility of a continuous phase convention for polarised light

Pramana ◽  
1979 ◽  
Vol 12 (3) ◽  
pp. 257-262 ◽  
Author(s):  
Rajaram Nityananda
Keyword(s):  
Continuous Phase ◽  
Polarised Light ◽  
Phase Convention

Weak Radiative Decays of Hyperons in the Pole Model

1972 ◽  
Vol 50 (12) ◽  
pp. 1300-1306
Author(s):  
E. Yakimiw ◽  
G. Jakimiw
Keyword(s):  
Experimental Data ◽  
Decay Rate ◽  
Radiative Decays ◽  
Pole Model ◽  
Present Experimental Data ◽  
Correct Sign ◽  
Phase Convention ◽  
Asymmetry Parameters

It is found that the pole model which includes the decuplet pole contributions in the weak radiative decays of hyperons fails to give the correct sign of the Σ+ → pγ asymmetry parameters α, although the magnitude of the decay rate and of α are consistent with the present experimental data. This conclusion holds in the Rarita–Schwinger formalism. Earlier calculations are incorrect due mainly to an error in the spin-3/2 propagator used in the theory, and inconsistencies in the SU(3) phase convention.

scholarly journals NNI-Form Quark Mass Matrix Expressed by the Observable Quantities

1997 ◽  
Vol 12 (35) ◽  
pp. 2655-2664 ◽  
Author(s):  
Yoshio Koide
Keyword(s):  
Texture Analysis ◽  
General Expression ◽  
Quark Mass ◽  
Mass Matrix ◽  
Ckm Matrix ◽  
Quark Masses ◽  
Mass Matrices ◽  
Matrix Formula ◽  
Phase Convention ◽  
Type Mass

It is pointed out that the phase convention of the CKM matrix V affects texture analysis of the quark mass matrices (Mu,Md) when we try to describe (Mu,Md) by the observable quantities (quark masses and CKM matrix parameters) only. This is demonstrated for a case of non-Hermitian Fritzsch-type mass matrix [Formula: see text], which is a general expression of quark mass matrix (Mu,Md) and is described by 12 parameters. We find that we can always choose a phase convention of V which yields [Formula: see text], so that the remaining ten parameters in [Formula: see text], can be completely expressed by the ten observable quantities.

ON PARAMETRIZATION AND APPROXIMATION RELEVANT TO DESCRIBE VIOLATION OF CP, T AND CPT SYMMETRIES IN THE NEUTRAL KAON SYSTEM

1996 ◽  
Vol 11 (37) ◽  
pp. 2941-2951 ◽  
Author(s):  
S.Y. TSAI
Keyword(s):  
Cp Violation ◽  
Neutral Kaon ◽  
Advantages And Disadvantages ◽  
Phase Convention ◽  
Independent Parameters

We introduce several sets of parameters, which are rephasing-invariant and possess well-defined properties, to describe violation of CP, T and CPT symmetries in the [Formula: see text] system. It is pointed out that those parameters which signal T and CPT violations but not CP violation are not well constrained experimentally yet. We further introduce a set of rephasing-dependent (= phase-convention-dependent) parameters and investigate how they are related to our rephasing-invariant (= phase-convention-independent) parameters. In this way, advantages and disadvantages of and relations among various parametrizations are stated clearly.

Sign of 'δ', the Amplitude Mixing Ratio of Gamma Transitions, and Gamma–Gamma–Gamma Angular Correlation Studies in 160Dy

1971 ◽  
Vol 49 (15) ◽  
pp. 2088-2092 ◽  
Author(s):  
U. S. Pande ◽  
B. P. Singh
Keyword(s):  
Angular Correlation ◽  
Gamma Rays ◽  
Mixing Ratio ◽  
Correlation Studies ◽  
The Absolute ◽  
Gamma Transitions ◽  
Phase Convention

The importance of gamma–gamma–gamma angular correlation in order to study the absolute sign of 'δ', the amplitude mixing ratio of gamma transitions, independent of phase convention is given. A study of the triple gamma-rays cascade of 298 keV → 879 keV → 87 keV in 160Dy from the decay of 160Tb has been done.

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