Searching for new physics through atomic, molecular and optical precision measurements
نویسندگان
چکیده
منابع مشابه
Precision Electroweak Measurements and “new Physics”
The status of several precisely measured electroweak parameters is reviewed. Natural relations among them are shown to constrain the Higgs mass, mH , as well as various “New Physics” effects. Indications of an anomalous Zb b coupling are discussed. Constraints on excited W bosons are given. This manuscript has been authored under contract number DE-AC02-98CH10886 with the U.S. Department of Ene...
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Stanley J. Brodsky,1, ∗ Carl E. Carlson,2, † John R. Hiller,3, ‡ and Dae Sung Hwang4, § Stanford Linear Accelerator Center, Stanford University, Stanford, CA 94309 Particle Theory Group, Physics Department, College of William and Mary, Williamsburg, VA 23187-8795 Department of Physics, University of Minnesota-Duluth, Duluth, MN 55812 Department of Physics, Sejong University, Seoul 143-747, Kore...
متن کاملImpact of atomic parity violation measurements on precision electroweak physics.
The impact of atomic parity violation experiments on determination of the weak mixing parameter sin θ and the Peskin-Takeuchi parameters S and T is reassessed in the light of recent electroweak measurements at LEP, SLAC, and Fermilab. Since the weak charge QW provides unique information on S, its determination with a factor of four better accuracy than present levels can have a noticeable effec...
متن کاملAtomic Parity-Violation and Precision Physics
The atomic parity-violation (APV) parameter QW for a nucleus with n neutrons and z protons has been included in the list of pseudo-observables accessible with the codes TOPAZ0 and ZFITTER. In this way one can add the APV results in the LEP EWWG ‘global’ electroweak fits, checking the corresponding effect when added to the existing precision measurements. † Work supported by the European Union u...
متن کاملAtomic Parity Violation and Precision Electroweak Physics
A new analysis of parity violation in atomic cesium has led to the improved value of the weak charge, QW (Cs) = −72.06± 0.46. The implications of this result for constraining the Peskin-Takeuchi parameters S and T and for guiding searches for new Z bosons are discussed. PACS Categories: 11.30.Er, 12.15.Ji, 12.15.Mm, 12.60.Cn One prediction of the unified theory of weak and electromagnetic inter...
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ژورنال
عنوان ژورنال: Physica Scripta
سال: 2012
ISSN: 0031-8949,1402-4896
DOI: 10.1088/0031-8949/86/06/068101