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Papers by Daniel Busbridge

q q q q q q g g q q q q q q q J E T J E T J E T J E T χ 1 0 χ 1 0 E T E T Proton Proton LHC tunne... more q q q q q q g g q q q q q q q J E T J E T J E T J E T χ 1 0 χ 1 0 E T E T Proton Proton LHC tunnel LHC tunnel

BUSSTEPP 2011 university-logo SUSY is Broken Spontaneous SUSY Breaking Gauge Mediated SUSY Breaki... more BUSSTEPP 2011 university-logo SUSY is Broken Spontaneous SUSY Breaking Gauge Mediated SUSY Breaking Optional Extras Disclaimer When I say SUSY, I mean N = 1 SUSY university-logo SUSY is Broken Spontaneous SUSY Breaking Gauge Mediated SUSY Breaking Optional Extras university-logo SUSY is Broken Spontaneous SUSY Breaking Gauge Mediated SUSY Breaking Optional Extras Generic Features Recipe Additional U(1)s with associated vector superfields (VSF) Gauge-singlet chiral superfields (χSF) Where are they? university-logo SUSY is Broken Spontaneous SUSY Breaking Gauge Mediated SUSY Breaking Optional Extras Where? With What? Who? university-logo SUSY is Broken Spontaneous SUSY Breaking Gauge Mediated SUSY Breaking Optional Extras Where? With What? Who? How to Communicate SUSY Tree-level? university-logo SUSY is Broken Spontaneous SUSY Breaking Gauge Mediated SUSY Breaking Optional Extras Where? With What? Who? university-logo SUSY is Broken Spontaneous SUSY Breaking Gauge Mediated SUSY Breaking Optional Extras Where? With What? Who? Spontaneous SUSY Breaking Gauge Mediated SUSY Breaking Optional Extras What if...? Could we have space-time supersymmetries? university-logo SUSY is Broken Spontaneous SUSY Breaking Gauge Mediated SUSY Breaking Optional Extras The Haag-Lopuszanski-Sohnius theorem Bypassing Coleman-Mandula A Lie alebgra [X , X ] = X university-logo SUSY is Broken Spontaneous SUSY Breaking Gauge Mediated SUSY Breaking Optional Extras The Haag-Lopuszanski-Sohnius theorem Bypassing Coleman-Mandula A Lie alebgra [X , X ] = X is just a special case of a graded Lie algebra {Q, Q } = X [Q, X ] = Q [X , X ] = X X = commuting element Q = anti-commuting element university-logo SUSY is Broken Spontaneous SUSY Breaking Gauge Mediated SUSY Breaking Optional Extras The Haag-Lopuszanski-Sohnius theorem Bypassing Coleman-Mandula What generators satisfying a graded Lie algebra are consistent with the Coleman-Mandula theorem? university-logo SUSY is Broken Spontaneous SUSY Breaking Gauge Mediated SUSY Breaking Optional Extras The Haag-Lopuszanski-Sohnius theorem Commuting elements We already know the commuting part of the algebra X = {P, J, B} =⇒ [X , X ] = X Using graded Jacobi identities, the rest of the (anti-)commutators of the algebra are fully determined... university-logo SUSY is Broken Spontaneous SUSY Breaking Gauge Mediated SUSY Breaking Optional Extras Spontaneous SUSY Breaking Gauge Mediated SUSY Breaking Optional Extras Pros and Cons Advantages Flavour-blind communication automatic Theory is renormalizable university-logo SUSY is Broken Spontaneous SUSY Breaking Gauge Mediated SUSY Breaking Optional Extras Pros and Cons Advantages Flavour-blind communication automatic Theory is renormalizable Problems Higgs 'b' term difficult to generate LSP is always gravitino university-logo SUSY is Broken Spontaneous SUSY Breaking Gauge Mediated SUSY Breaking Optional Extras

Teaching Documents by Daniel Busbridge

U and are the quark mass matrices, whose eigenvalues are masses.