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The endpoint of the first-order phase transition of the SU(2) gauge-Higgs model on a 4-dimensional isotropic lattice

Y. Aoki·F. Csikor·Z. Fodor·A. Ukawa
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Abstract

We study the first-order finite-temperature electroweak phase transition of the SU(2) gauge-Higgs model defined on a 4-dimensional isotropic lattice with temporal extension N_t=2. Finite-size scaling study of Lee-Yang zeros yields the value of the Higgs self coupling of the endpoint at lambda_c=0.00116(16). An independent analysis of Binder cumulant gives a consistent value for the endpoint. Combined with our zero-temperature measurement of Higgs and W boson masses, this leads to M_{H,c}=73.3 +- 6.4 GeV for the critical Higgs boson mass beyond which the electroweak transition turns into a crossover.

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Y. Aoki, F. Csikor, Z. Fodor, A. Ukawa. 1999-01-27. The endpoint of the first-order phase transition of the SU(2) gauge-Higgs model on a 4-dimensional isotropic lattice. https://doi.org/10.1103/physrevd.60.013001

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