Epstein Secrets

auges (RE) upon augmenting the Lagrangian with a gauge fixing term Cil = —GaG a /2 where G a = (1/ vc1)(8 1,Aa P — x,) where Xi are the would-be Goldstone boson fields and Fa; = 7',Ivj with Tal the sym- metry generators and vj the symmetry-breaking vacuum ex- pectation value. (See, e.g., [33]). A corres

ut in this limit the perturbative valid- ity of the calculation begins to break down. To resolve this is- sue, the unphysical degrees of freedom, the Goldstone bosons and ghosts, should be decoupled as the unitary gauge is ap- proached. Our numerical results appear consistent with the Nielsen identities [

erved values, MH 125 GeV and Mt :4 173 GeV, the coupling runs neg- ative at h 107° — 1012 GeV; this is the well-known vacuum stability problem of the Standard Model [26]. Successful HI requires an O(2e) deviation from central values toward either larger Higgs boson mass or smaller top quark mass. Gauge depende

lass of gauges (RO upon augmenting the Lagrangian with a gauge fixing term Cgi = —G°Ga/2 where = (1/ 1. ,f)(0,A° - xs) where x, are the would-be Goldstone boson fields and F° = riv, with 711 the sym- metry generators and vj the symmetry-breaking vacuum ex- pectation value. (See. e.g., [33]). A correspon

ut in this limit the perturbative valid- ity of the calculation begins to break down. To resolve this is- sue. the unphysical degrees of freedom. the Goldstone bosons and ghosts. should be decoupled as the unitary gauge is ap- proached. Our numerical results appear consistent with the Nielsen identities [

bserved values, 125 GeV and Mt xr. 173 GeV, the coupling runs neg- ative at h ot 101° —1012 GeV; this is the well-known vacuum stability problem of the Standard Model [26). Successful HI requires an O(2o) deviation from central values toward either larger Higgs boson mass or smaller top quark mass. Gauge depende

eing: Symmetry Broken, Physics Fixed 203 was written down in the context of a nonrelativistic condensed matter setting—combined with its violating Goldstone's theorem from particle physics, which implied that symmetry breaking and massless particles were inseparable—meant that his claim that massless st

owing Higgs's stint at the summer school in 1960, he began to study the literature on symmetry and symmetry breaking, examin- ing the work of Nambu, Goldstone, Salam, Weinberg, and Anderson. Higgs became depressed by the seemingly hopeless task of reconciling Goldstone's theorem with the possibility of ma

ne wanted to talk about the details in public. 2P_GrealetaleryEverTold_AC.indd 254 12/16116 3:06 PIA EFTA00286176 Spanking the Vacuum 255 That the Standard Model didn't fix in advance many of the details of the Higgs sector didn't dissuade many theorists from proposing models that "predicted" the Higgs mass