Visible Supersymmetry Breaking and an Invisible Higgs

نویسندگان

  • Daniele Bertolini
  • Keith Rehermann
  • Jesse Thaler
چکیده

If there are multiple hidden sectors which independently break supersymmetry, then the spectrum will contain multiple goldstini. In this paper, we explore the possibility that the visible sector might also break supersymmetry, giving rise to an additional pseudogoldstino. By the standard lore, visible sector supersymmetry breaking is phenomenologically excluded by the supertrace sum rule, but this sum rule is relaxed with multiple supersymmetry breaking. However, we find that visible sector supersymmetry breaking is still phenomenologically disfavored, not because of a sum rule, but because the visible sector pseudo-goldstino is generically overproduced in the early universe. A way to avoid this cosmological bound is to ensure that an R symmetry is preserved in the visible sector up to supergravity effects. A key expectation of this R-symmetric case is that the Higgs boson will dominantly decay invisibly at the LHC.

برای دانلود رایگان متن کامل این مقاله و بیش از 32 میلیون مقاله دیگر ابتدا ثبت نام کنید

ثبت نام

اگر عضو سایت هستید لطفا وارد حساب کاربری خود شوید

منابع مشابه

Direct Mediation and a Visible Metastable Supersymmetry Breaking Sector

We analyze an R-symmetry breaking deformation of the ISS model for a direct mediation of supersymmetry breaking from a metastable vacuum. The model is weakly coupled and calculable. The LSP gravitino is light (m 3 2 < 16 eV) and the MSSM spectrum is natural with a light Higgs. The supersymmetry breaking sector, which is usually hidden, is observable (m ∼ 1TeV) and may be a candidate for cold da...

متن کامل

Gluino mass from dynamical supersymmetry breaking.

We present a new mechanism for gluino mass generation in models of dynamical supersymmetry breaking. The mechanism requires two colored chiral superfields which feel a nonabelian gauge interaction such that a fermion condensate is formed at a scale of order 1 TeV. Renormalizable hidden sector models, which typically yield unacceptably light gauginos, become viable if a gauge singlet is coupled ...

متن کامل

ep - p h / 03 01 12 1 v 1 1 6 Ja n 20 03 Low - scale supersymmetry breaking : effective description , electroweak breaking and phenomenology

We consider supersymmetric scenarios in which the scale of SUSY breaking is low, √ F = O(TeV). Instead of studying specific models of this type, e.g. those with extra dimensions and low fundamental scale, we follow a model-independent approach based on a general effective Lagrangian, in which the MSSM supermul-tiplets are effectively coupled to a singlet associated to SUSY breaking. Our goal is...

متن کامل

ar X iv : h ep - p h / 03 01 12 1 v 2 1 5 Ju l 2 00 3 Low - scale supersymmetry breaking : effective description , electroweak breaking and phenomenology

We consider supersymmetric scenarios in which the scale of SUSY breaking is low, √ F = O(TeV). Instead of studying specific models of this type, e.g. those with extra dimensions and low fundamental scale, we follow a model-independent approach based on a general effective Lagrangian, in which the MSSM supermul-tiplets are effectively coupled to a singlet associated to SUSY breaking. Our goal is...

متن کامل

More Corrections to the Higgs Mass in Supersymmetry

In supersymmetry, the Higgs quartic couplings is given by the sum in quadrature of the weak gauge couplings. This leads to the prediction of a light Higgs boson, which still holds when considering loop corrections from soft supersymmetry breaking. However, another source of corrections, which explicitly depends on the scale of the mediation of supersymmetrey breaking, is from generic hard break...

متن کامل

ذخیره در منابع من


  با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید

عنوان ژورنال:

دوره   شماره 

صفحات  -

تاریخ انتشار 2012