期刊
JOURNAL OF EXPERIMENTAL AND THEORETICAL PHYSICS
卷 120, 期 3, 页码 335-343出版社
PLEIADES PUBLISHING INC
DOI: 10.1134/S1063776115030152
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资金
- Swiss National Science Foundation
- STFC [ST/G00045X/1, ST/J000418/1] Funding Source: UKRI
- Science and Technology Facilities Council [ST/G00045X/1, ST/J000418/1] Funding Source: researchfish
In the cosmological context, for the Standard Model to be valid up to the scale of inflation, the top quark Yukawa coupling y (t) should not exceed the critical value y (t) (crit) , coinciding with good precision (about 0.2aEuro degrees) with the requirement of the stability of the electroweak vacuum. So, the exact measurements of y (t) may give an insight on the possible existence and the energy scale of new physics above 100 GeV, which is extremely sensitive to y (t) . We overview the most recent theoretical computations of and the experimental measurements of y (t) (crit) and the experimental measurements of y (t) . Within the theoretical and experimental uncertainties in y (t) , the required scale of new physics varies from 10(7) GeV to the Planck scale, urging for precise determination of the top quark Yukawa coupling.
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