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Showing 2009 · hep-phShow all

18 papers · 2 filters

hep-ph2009★ 37 cited

Alignments in quasar polarizations: pseudoscalar-photon mixing in the presence of correlated magnetic fields

Nishant Agarwal, Archana Kamal, Pankaj Jain

We investigate the effects of pseudoscalar-photon mixing on electromagnetic radiation in the presence of correlated extragalactic magnetic fields. We model the Universe as a collec…

hep-ph2009★ 51 cited

Model of leptons from

Joshua Berger, Yuval Grossman

The lepton sector masses and mixing angles can be explained in models based on symmetry. is a non-Abelian discrete group. Therefore, one issue in constructing models ba…

hep-ph2009★ 8 cited

Charming Higgs

Brando Bellazzini, Csaba Csaki, Adam Falkowski +1

We present a simple supersymmetric model where the dominant decay mode of the lightest Higgs boson is h->2eta->4c where eta is a light pseudoscalar and c is the charm quark. For su…

hep-ph2009★ 16 cited

Hadronic D and D_s Meson Decays

Anders Ryd, Alexey A Petrov

We provide a comprehensive review of hadronic decays of D and D_s mesons. We discuss current theoretical and experimental challenges and successes in understanding of hadronic tran…

hep-ph2009★ 102 cited

Precise charm to strange mass ratio and light quark masses from full lattice QCD

C. T. H. Davies, C. McNeile, K. Y. Wong +6

By using a single formalism to handle charm, strange and light valence quarks in full lattice QCD for the first time, we are able to determine ratios of quark masses to 1%. For $m_…

hep-ph2009★ 56 cited

MSSM Higgs with dimension-six operators

I. Antoniadis, E. Dudas, D. M. Ghilencea +1

We investigate an extension of the MSSM Higgs sector by including the effects of all dimension-five and dimension-six effective operators and their associated supersymmetry breakin…

hep-ph2009★ 1 cited

QCD effects on "stable" micro black holes at the LHC

Itzhak Goldman, Yuval Grossman, Shmuel Nussinov

If Micro Black Holes (MBHs) can be produced at the LHC, they will decay very fast. We study hypothetical MBHs that do not decay; in particular, QCD effects on accretion by MBHs tha…

hep-ph2009★ 49 cited

Flavor Alignment via Shining in RS

Csaba Csaki, Gilad Perez, Ze'ev Surujon +1

We present a class of warped extra dimensional models whose flavor violating interactions are much suppressed compared to the usual anarchic case due to flavor alignment. Such supp…

hep-ph2009★ 15 cited

Tensor Reggeons from Warped Space at the LHC

Maxim Perelstein, Andrew Spray

The hierarchy problem can be addressed by extending the four-dimensional space-time to include an extra compact spatial dimension with non-trivial "warped" metric, as first suggest…

hep-ph2009★ 16 cited

Buried Higgs

Brando Bellazzini, Csaba Csaki, Adam Falkowski +1

We present an extension of the MSSM where the dominant decay channel of the Higgs boson is a cascade decay into a four-gluon final state. In this model the Higgs is a pseudo-Goldst…

hep-ph2009★ 59 cited

Lessons from Recent Measurements of D-\bar D Mixing

Oram Gedalia, Yuval Grossman, Yosef Nir +1

An impressive progress in measurements of the D-\bar D mixing parameters has been made in recent years. We explore the implications of these measurements to models of new physics,…

hep-ph2009★ 25 cited

A Flavor Protection for Warped Higgsless Models

Csaba Csaki, David Curtin

We examine various possibilities for realistic 5D higgsless models and construct a full quark sector featuring next-to-minimal flavor violation (with an exact bulk SU(2) protecting…

hep-ph2009★ 84 cited

Testing New Indirect CP Violation

Yuval Grossman, Yosef Nir, Gilad Perez

If new CP violating physics contributes to neutral meson mixing, but its contribution to CP violation in decay amplitudes is negligible, then there is a model independent relation…

hep-ph2009★ 18 cited

Future prospects of B physics

Yuval Grossman, Zoltan Ligeti, Yosef Nir

In recent years, the CKM picture of flavor and CP violation has been confirmed, mainly due to B decay data. Yet, it is likely that there are small corrections to this picture. We e…

hep-ph2009★ 100 cited

Combining K-\bar K mixing and D-\bar D mixing to constrain the flavor structure of new physics

Kfir Blum, Yuval Grossman, Yosef Nir +1

New physics at high energy scale often contributes to K-\bar K and D-\bar D mixings in an approximately SU(2)_L invariant way. In such a case, the combination of measurements in th…

hep-ph2009★ 47 cited

Shedding Light on the Dark Sector with Direct WIMP Production

Partha Konar, Kyoungchul Kong, Konstantin T. Matchev +1

A Weakly Interacting Massive Particle (WIMP) provides an attractive dark matter candidate, and should be within reach of the next generation of high-energy colliders. We consider t…

hep-ph2009★ 29 cited

SUSY without the Little Hierarchy

B. Bellazzini, C. Csaki, A. Delgado +1

We propose a simple gauge extension of the minimal supersymmetric standard model (MSSM), where the fine tuning in the Higgs mass parameters is highly reduced. The Higgs boson is in…

hep-ph2009★ 6 cited

Odd Decays from Even Anomalies: Gauge Mediation Signatures Without SUSY

Csaba Csaki, Johannes Heinonen, Jay Hubisz +1

We analyze the theory and phenomenology of anomalous global chiral symmetries in the presence of an extra dimension. We propose a simple extension of the Standard Model in 5D whose…