منابع مشابه
B - Factories
The evolution of B-Factories is discussed, and comments are made about the common features of present-day asymmetric storage ring collider designs. * Work supported by Department of Energy contract DE-AC03-76SF00515. Presented at the 4th International Symposium on Heavy E’lavour Physics, Orsay, France, June 25-29, 1991 There was a symposium Progress on B-Factories the day before the Heavy Flavo...
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We report on recent progress in studying two aspects of B physics, in which penguin amplitudes play an important role: 1. Bounds on penguin pollution in B(t) → ππ constraining CKM parameters, and a lower bound on B → ππ improving precision in sin 2α. 2. A suggestion for measuring the photon polarization in electroweak penguin decay, B → K1(1400)γ, providing a precision test of the Standard Model.
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Break a ruler of length n inches with indentations at each inchmark into n sticks of length one by repeatedly picking up all the fragments which are still of length greater than one and throwing them down all at once until all the sticks are of length one. Assume that each stick breaks into exactly two sticks uniformly at the inchmarks. What is the expected number of throws needed to complete t...
متن کاملB-factories* - Ellio?t
(El a-ABSTRACT We briefly review the physics of CP violation and the interest of studying this phenomenon in the B-meson system. The need for very large numbers of B-decays is shown, and a number of approaches for B-factories are compared. In particular, e+e-linear and circular colliders are discussed in some detail, with specific examples presented .
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ژورنال
عنوان ژورنال: Nature Physics
سال: 2007
ISSN: 1745-2473,1745-2481
DOI: 10.1038/nphys555