RT Journal Article T1 Brout-Englert-Higgs mechanism for accelerating observers A1 Dobado González, Antonio AB In this work we consider the spontaneous symmetry breaking of the electroweak SU(2)_(L) × U(1)_(Y) gauge group into U(1)_(em) taking place in the Standard Model of particle physics as seen from the point of view of an accelerating observer. According to the Unruh effect, that observer detects the Minkowski vacuum as a thermal bath at a temperature proportional to the proper acceleration a. Then we show that (in a certain large N limit) when the acceleration is bigger than the critical value a_(c) = 4πv (where v is the Higgs vacuum expectation value), the electroweak SU(2)L × U(1)_(Y) gauge symmetry is restored and all elementary particles become massless. In addition, even observers with a ˂ a_(c) can see this symmetry restoration in the region close to the Rindler horizon. PB Amer Physical Soc SN 2470-0010 YR 2017 FD 2017-10-30 LK https://hdl.handle.net/20.500.14352/18542 UL https://hdl.handle.net/20.500.14352/18542 LA eng NO © 2017 American Physical Society. The author thanks E. Álvarez and R. Tarrach for triggering our interest in the problem considered in this work, L. Álvarez-Gaumé for comments concerning [10], C. Pajares for bringing to our attention Refs. [16,17] and for useful discussions, and J. A. Ruiz-Cembranos for reading the manuscript. This work is supported by Spanish Grants No. MINECO:FPA2014-53375-C2-1-P and No. FPA2016- 75654-C2-1-P. NO Ministerio de Economía y Competitividad (MINECO) DS Docta Complutense RD 17 abr 2025