scholarly journals New physics and the unitarity triangle

1998 ◽  
Author(s):  
David London
Keyword(s):  
New Physics ◽  
Unitarity Triangle

scholarly journals Standard Model updates and new physics analysis with the Unitarity Triangle fit

2013 ◽  
Vol 241-242 ◽  
pp. 89-94 ◽  
Author(s):  
A. Bevan ◽  
M. Bona ◽  
M. Ciuchini ◽  
D. Derkach ◽  
E. Franco ◽  
...  
Keyword(s):  
Standard Model ◽  
New Physics ◽  
Unitarity Triangle

scholarly journals RARE DECAYS AND CP VIOLATION BEYOND THE STANDARD MODEL

2006 ◽  
Vol 21 (08n09) ◽  
pp. 1738-1749 ◽  
Author(s):  
LUCA SILVESTRINI
Keyword(s):  
Cp Violation ◽  
Standard Model ◽  
Rare Decays ◽  
New Physics ◽  
Beyond The Standard Model ◽  
Unitarity Triangle ◽  
Minimal Flavour Violation ◽  
The Standard Model ◽  
The Status ◽  
Flavour Violation

We review the status of rare decays and CP violation in extensions of the Standard Model. We analyze the determination of the unitarity triangle and the model-independent constraints on new physics that can be derived from this analysis. We find stringent bounds on new contributions to [Formula: see text] and [Formula: see text] mixing, pointing either to models of minimal flavour violation or to models with new sources of flavour and CP violation in b → s transitions. We discuss the status of the universal unitarity triangle in minimal flavour violation, and study rare decays in this class of models. We then turn to supersymmetric models with nontrivial mixing between second and third generation squarks, discuss the present constraints on this mixing and analyze the possible effects on CP violation in b → s nonleptonic decays and on [Formula: see text] mixing. We conclude presenting an outlook on Lepton-Photon 2009.

scholarly journals HEAVY QUARK LIFETIMES, MIXING AND CP VIOLATION

2000 ◽  
Vol 15 (10) ◽  
pp. 1393-1414
Author(s):  
GUY BLAYLOCK
Keyword(s):  
Cp Violation ◽  
Heavy Quark ◽  
Heavy Quark Physics ◽  
Branching Fraction ◽  
New Physics ◽  
Unitarity Triangle ◽  
Lifetime Measurements ◽  
Physics First ◽  
Charm Decay ◽  
Charm Mixing

This paper emphasizes four topics that represent some of the year's highlights in heavy quark physics. First of all, a review is given of charm lifetime measurements and how they lead to better understanding of the mechanisms of charm decay. Secondly, the CLEO collaboration's new search for charm mixing is reported, which significantly extends the search for new physics in that sector. Thirdly, important updates in Bs mixing are summarized, which result in a new limit on ΔMs, and which further constrain the unitarity triangle. Finally, the first efforts to measure CP violation in the B system are discussed. Results are shown for the CDF and ALEPH measurements of sin 2β, as well as the CLEO branching fraction measurements of B→Kπ, ππ, which have implications for future measurements of α.

scholarly journals CKM PARAMETERS AND RARE B DECAYS

2006 ◽  
Vol 21 (08n09) ◽  
pp. 1683-1696 ◽  
Author(s):  
FRANCESCO FORTI
Keyword(s):  
B Meson ◽  
New Physics ◽  
Precise Determination ◽  
Model Parameters ◽  
B Decays ◽  
Unitarity Triangle ◽  
Indirect Determination ◽  
Radiative Transitions ◽  
First Time

Measurements of the angles and sides of the unitarity triangle and of the rates of rare B meson decays are crucial for the precise determination of Standard Model parameters and are sensitive to the presence of new physics particles in the loop diagrams. In this paper the recent measurements performed in this area by BABAR and Belle will be presented. The direct measurement of the angle α is for the first time as precise as the indirect determination. The precision of the |Vub| determination has improved significantly with respect to previous measurement. New limits on B → τν decays are presented, as well as updated measurements on b → s radiative transitions and a new observation of b → dγ transition made by Belle.

scholarly journals CP VIOLATION IN B→πK DECAYS

2004 ◽  
Vol 19 (31) ◽  
pp. 5485-5492
Author(s):  
MAXIME IMBEAULT
Keyword(s):  
Cp Violation ◽  
New Physics ◽  
Unitarity Triangle ◽  
Electroweak Penguin

I briefly review CP violation in the B system, concentrating on B→πK decays. I discuss how to deal with electroweak-penguin contributions to these decays using flavour SU (3). With these, I show that the entire unitarity triangle can be extracted from measurements of B→πK decays. Finally, I examine the signals for new physics in these decays and the possibilities for measuring them.

RECENT RESULTS FROM B FACTORIES

2007 ◽  
Vol 22 (31) ◽  
pp. 5943-5957
Author(s):  
GAUTIER HAMEL de MONCHENAULT
Keyword(s):  
New Physics ◽  
Unitarity Triangle ◽  
B Factory

We review some of the key 2006 measurements constraining the Unitarity Triangle and probing New Physics at B factory experiments BELLE and BABAR.

scholarly journals Testing New Physics with Unitarity Triangle Fit

2007 ◽  
Author(s):  
Marcella Bona ◽  
M. Ciuchini ◽  
E. Franco ◽  
Vittorio Lubicz ◽  
Guido Martinelli ◽  
...  
Keyword(s):  
New Physics ◽  
Unitarity Triangle
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