Unparticles: Scales and High Energy Probes

Abstract

Unparticles from hidden conformal sectors provide qualitatively new possibilities for physics beyond the standard model. In the theoretical framework of minimal models, we clarify the relation between energy scales entering various phenomenological analyses. We show that these relations always counteract the effective field theory intuition that higher dimension operators are more highly suppressed, and that the requirement of a significant conformal window places strong constraints on possible unparticle signals. With these considerations in mind, we examine some of the most robust and sensitive probes and explore novel effects of unparticles on gauge coupling evolution and fermion production at high energy colliders. These constraints are presented both as bounds on four-fermion interaction scales and as constraints on the fundamental parameter space of minimal models.

16 pages, 2 tables, 6 figures; reference added, published version

References in corpus (14)

• Unparticle Physics
• Another Odd Thing About Unparticle Physics
• Collider signals in unparticle physics
• Deconstruction of Unparticles
• Bounds on Unparticles from the Higgs Sector
• Constraining Unparticle Physics with Cosmology and Astrophysics
• Bounds on Unparticles Couplings to Electrons: from Electron g-2 to Positronium Decays
• Unparticle Physics Effects on D0-anti-D0 Mixing
• Long-range Electron Spin-spin Interactions from Unparticle Exchange
• Lepton flavor violating processes in unparticle physics
• B \to K(K^*) missing energy in Unparticle physics
• Constraints On Unparticle Physics In Electroweak Gauge Boson Scattering
• Unparticle Physics in DIS
• Unparticle phase effects

Cited by in corpus (38)

• Comments on Unparticles
• Conformal Windows of SU(N) Gauge Theories, Higher Dimensional Representations and The Size of The Unparticle World
• Unparticle physics effects in B_s mixing
• Unparticles-Higgs Interplay
• Unparticle constraints from SN1987A
• SUSY Unparticle and Conformal Sequestering
• Contact Interactions and Resonance-Like Physics at Present and Future Colliders from Unparticles
• Unparticles at heavy flavour scales: CP violating phenomena
• Unraveling unparticles through violation of atomic parity and rare beauty
• Lepton flavor violating $\mu \to e\gamma$ and $\mu -e$ conversion in unparticle physics
• Unparticle physics at the photon collider
• Unparticle Self-Interactions and Their Collider Implications
• Un-particle Effective Action
• Test of unparticle long range forces from perihelion precession of Mercury
• Direct CP violation of $B\to l\nu$ in unparticle physics
• Unparticle Physics and A_{FB}^b on the Z pole
• Phantom Higgs from Unparticles
• The Higgs as a Portal to Plasmon-like Unparticle Excitations
• On the Decay of Unparticles
• Disentangling the Unparticles with polarized beams at e+e- colliders
• W-pair production in Unparticle Physics
• Effects of Unparticles on Running of Gauge Couplings
• Unparticle physics with broken scale invariance
• Unparticle Physics And Gauge Coupling Unification
• Investigation of $B_{u,d}\to (\pi ,K)\pi$ decays within unparticle physics
• Higgs Boson Decays into Single Photon plus Unparticle
• Unparticle physics effects in (Lambda_b -> Lambda + missing energy) processes
• Unparticle Searches Through Compton Scattering
• Top off the unparticle
• Fermionic un-particles, gauge interactions and the $\beta$ function
• Unparticle Effects on Unitarity Constraints from Higgs Boson Scattering
• Unparticles in diphoton production to NLO in QCD at the LHC
• Unparticle effects on top quark rare decays
• Lepton flavor conserving Z boson decays and scalar unparticle
• Unparticle Searches Through Low Energy Parity Violating Asymmetry
• Unparticle-Enhanced Black Holes at the LHC
• On Unparticles and K+ to pi+ Missing Energy
• Vector unparticle contributions to lepton g-2