QCD corrections to<i>K</i>−K̄ mixing in R-symmetric supersymmetric models

Blechman, Andrew E.; Ng, Siew-Phang

doi:10.1088/1126-6708/2008/06/043

Cited by 16 publications

(10 citation statements)

References 22 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…This is a consequence of the fact that most flavor violating observables turn out to be proportional to terms which break R-symmetry, and are hence suppressed [11][12][13]. Therefore, a significant amount of flavor mixing is possible and quite generic.…”

Section: Jhep01(2014)115mentioning

confidence: 99%

“…Further, the µ-term is also not allowed. The combination of these features relaxes the SUSY flavor problem, allowing for a larger flavor violation both in the squark and in slepton sector than in the MSSM (see [11] and [13]). For instance, models with Dirac gluinos contribute to meson mixing through dimension 6 operators which are hence suppressed relative to the dimension 5 operators present in models with Majorana gluinos allowing for a potentially large mixing.…”

Section: Mixed Stops In R-symmetric Modelsmentioning

confidence: 99%

See 1 more Smart Citation

Mixing stops at the LHC

Agrawal

Frugiuele

2014

J. High Energ. Phys.

View full text Add to dashboard Cite

Abstract:We study the phenomenology of a light stop NLSP in the presence of large mixing with either the first or the second generation. R-symmetric models provide a prime setting for this scenario, but our discussion also applies to the MSSM when a significant amount of mixing can be accommodated. In our framework the dominant stop decay is through the flavor violating mode into a light jet and the LSP in an extended region of parameter space. There are currently no limits from ATLAS and CMS in this region. We emulate shape-based hadronic SUSY searches for this topology, and find that they have potential sensitivity. If the extension of these analyses to this region is robust, we find that these searches can set strong exclusion limits on light stops. If not, then the flavor violating decay mode is challenging and may represent a blind spot in stop searches even at 13 TeV. Thus, an experimental investigation of this scenario is well motivated.

show abstract

Section: Jhep01(2014)115mentioning

confidence: 99%

Section: Mixed Stops In R-symmetric Modelsmentioning

confidence: 99%

Mixing stops at the LHC

Agrawal

Frugiuele

2014

J. High Energ. Phys.

View full text Add to dashboard Cite

show abstract

“…One of the most interesting implications of the MRSSM is that flavor mixing could be at or near maximal throughout virtually the entire slepton and squark sector [12] (save only perhaps ford-s mixing [36]). For sleptons, this opens up the possibility of observing large -e mixing at colliders.…”

Section: Implications For Flavor Violation Signals At Lhcmentioning

confidence: 99%

μtoeinR-symmetric supersymmetry

Fok

Kribs

2010

Phys. Rev. D

View full text Add to dashboard Cite

We compute the one-loop corrections to the Z → b ¯ b vertex in the U (1) R symmetric minimal supersymmetric extension of the standard model. We find that the predicted value of R b is consistent with experiment if the mass of the lighter top squark is no more than 180 GeV. Furthermore, other data combines to place a lower bound of 88 GeV on the mass of the light top squark. A top squark in this mass range should be accessible to searches by experiments at FNAL and LEP. 1

show abstract

“…Alternatively if there is a large hierarchy between the superpartners, the heavy superpartners must be integrated out first, and then the intermediate theory run to the scale of the lightest superpartners. The procedure in this case has been described for the MSSM in [95], and the Dirac case in [96], and we follow these references. The expressions for the coefficients C i in terms of the supersymmetric model have been expressed in terms of the squark mass matrices in, for example, [89].…”

Section: Flavour and Cp Violationmentioning

confidence: 99%

Dirac vs Majorana gauginos at a 100 TeV collider

Cortona

Hardy

Powell³

2016

J. High Energ. Phys.

View full text Add to dashboard Cite

Abstract:We compare the prospects for observing theories with Majorana or Dirac gauginos at a future 100 TeV proton-proton collider. Calculating the expected discovery and exclusion regions, we find that for heavy gluino masses the squark discovery reach is significantly reduced in Dirac gluino models relative to the Majorana case. However, if the squark and gluino masses are close the reach is similar in both scenarios. We also consider the electroweak fine tuning of theories observable at such a collider, and the impact of existing constraints from flavour and CP violating observables. Models with Majorana gluinos that are fine tuned to less than one part in 10, 000 can typically be discovered or excluded, and Dirac models with tuning of one part in 1, 000 can be probed. The flavour structure of Majorana models is highly constrained if they have observable squarks, while O(1) violation is possible in accessible Dirac models. In both cases new sources of CP violation must be very suppressed. Future collider searches can also give important information on possible dark matter candidates. We study the relation of this to indirect and direct detection searches, and find that if dark matter is a neutralino, a 100 TeV collider could probe the viable dark matter candidates in large classes of both Dirac and Majorana models.

show abstract

QCD corrections toK−K̄ mixing in R-symmetric supersymmetric models

Cited by 16 publications

References 22 publications

Mixing stops at the LHC

Mixing stops at the LHC

μtoeinR-symmetric supersymmetry

Dirac vs Majorana gauginos at a 100 TeV collider

Contact Info

Product

Resources

About