MATRIX ELEMENT EFFECTS IN THE ANGLE-RESOLVED PHOTOEMISSION SPECTRUM OF BISCO

1998 ◽  
Vol 59 (10-12) ◽  
pp. 1879-1883 ◽  
Author(s):  
A. Bansil ◽  
M. Lindroos
Keyword(s):  
Matrix Element ◽  
Photoemission Spectrum

scholarly journals K → μ+μ− as a clean probe of short-distance physics

2021 ◽  
Vol 2021 (7) ◽  
Author(s):  
Avital Dery ◽  
Mitrajyoti Ghosh ◽  
Yuval Grossman ◽  
Stefan Schacht
Keyword(s):  
Matrix Element ◽  
Standard Model ◽  
Short Distance ◽  
Time Dependent ◽  
Final States ◽  
Interference Effects ◽  
Fundamental Theory ◽  
Long Distance ◽  
Ckm Matrix ◽  
The Standard Model

Abstract The K → μ+μ− decay is often considered to be uninformative of fundamental theory parameters since the decay is polluted by long-distance hadronic effects. We demonstrate that, using very mild assumptions and utilizing time-dependent interference effects, ℬ(KS → μ+μ−)ℓ=0 can be experimentally determined without the need to separate the ℓ = 0 and ℓ = 1 final states. This quantity is very clean theoretically and can be used to test the Standard Model. In particular, it can be used to extract the CKM matrix element combination $$ \mid {V}_{ts}{V}_{td}\sin \left(\beta +{\beta}_s\right)\mid \approx \mid {A}^2{\lambda}^5\overline{\eta}\mid $$ ∣ V ts V td sin β + β s ∣ ≈ ∣ A 2 λ 5 η ¯ ∣ with hadronic uncertainties below 1%.

SO(5) SYMMETRY AND SINGLE PARTICLE SPECTRA

1999 ◽  
Vol 13 (24n25) ◽  
pp. 3039-3047
Author(s):  
M. G. ZACHER ◽  
A. DORNEICH ◽  
R. EDER ◽  
W. HANKE ◽  
S. C. ZHANG
Keyword(s):  
Spectral Function ◽  
Single Particle ◽  
Photoemission Spectrum ◽  
Two Dimensional ◽  
Ladder Model ◽  
Particle Spectra ◽  
Key Features

We discuss properties of a recently proposed SO(5) symmetric ladder model. Key features of the single particle spectral function that are emerging from the symmetry are numerically identified in the ladder model and in the photoemission spectrum of the two-dimensional t–J model.

Momentum matrix element and conduction band nonparabolicity in wurtzite GaN

2005 ◽  
Vol 86 (16) ◽  
pp. 161908 ◽  
Author(s):  
S. Shokhovets ◽  
G. Gobsch ◽  
O. Ambacher
Keyword(s):  
Matrix Element ◽  
Conduction Band ◽  
Momentum Matrix Element ◽  
Band Nonparabolicity

Large Isospin-Mixing Matrix Element inC12

1972 ◽  
Vol 29 (6) ◽  
pp. 376-379 ◽  
Author(s):  
W. J. Braithwaite ◽  
J. E. Bussoletti ◽  
F. E. Cecil ◽  
G. T. Garvey
Keyword(s):  
Matrix Element ◽  
Mixing Matrix
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