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 (21)

• Big-Bang nucleosynthesis (Particle Data Group mini-review)
• The Cosmological Parameters 2006
• Echoes of a Hidden Valley at Hadron Colliders
• Unparticle Physics
• Another Odd Thing About Unparticle Physics
• Collider signals in unparticle physics
• Deconstruction of Unparticles
• Tests of the Standard Model and Constraints on New Physics from Measurements of Fermion-Pair Production at 189-209 GeV at LEP
• Bounds on Unparticles from the Higgs Sector
• Constraining Unparticle Physics with Cosmology and Astrophysics
• Interactions of Unparticles with Standard Model Particles
• Bounds on Unparticles Couplings to Electrons: from Electron g-2 to Positronium Decays
• Unparticle Physics Effects on D0-anti-D0 Mixing
• Study of Fermion pair production in e+e- collisions at 130-183 GeV
• Long-range Electron Spin-spin Interactions from Unparticle Exchange
• Lepton flavor violating processes in unparticle physics
• Search for Manifestations of New Physics in Fermion-Pair Production at LEP
• 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 (58)

• 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
• Un-graviton corrections to the Schwarzschild black hole
• Lepton flavor violating $\mu \to e\gamma$ and $\mu -e$ conversion in unparticle physics
• Unraveling unparticles through violation of atomic parity and rare beauty
• Unparticle physics at the photon collider
• Unparticle Self-Interactions and Their Collider Implications
• Cosmological Constraints on Unparticles as Continuous Mass Scalars
• Vector unparticle enhanced black holes: exact solutions and thermodynamics
• Un-particle Effective Action
• Test of unparticle long range forces from perihelion precession of Mercury
• A Note on Unparticle Decays
• Direct CP violation of $B\to l\nu$ in unparticle physics
• Phantom Higgs from Unparticles
• Unparticle Physics and A_{FB}^b on the Z pole
• 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
• Higgs Boson Decays into Single Photon plus Unparticle
• Unparticle physics effects in (Lambda_b -> Lambda + missing energy) processes
• Decay of Z Boson into Photon and Unparticle
• Investigation of $B_{u,d}\to (\pi ,K)\pi$ decays within unparticle physics
• Unparticle Searches Through Compton Scattering
• Top off the unparticle
• A Simple-Minded Unitarity Constraint and an Application to Unparticles
• Fermionic un-particles, gauge interactions and the $\beta$ function
• Unparticle Effects on Unitarity Constraints from Higgs Boson Scattering
• A note on unparticle in lower dimensions
• Unparticle Self-Interactions at the Large Hadron Collider
• Thermodynamic Properties of Static and Rotating Unparticle Black Holes
• Constraining Unparticles from Top Physics at TeVatron
• Unparticles in diphoton production to NLO in QCD at the LHC
• Protecting unparticles from the MSSM Higgs sector
• Unparticle effects on top quark rare decays
• Bound states and fermiophobic Unparticle oblique corrections to the photon
• Collider Effects of Unparticle Interactions in Multiphoton Signals
• Neutron Stars, Ungravity, and the I-Love-Q relation
• Lepton flavor conserving Z boson decays and scalar unparticle
• Unparticle Searches Through Low Energy Parity Violating Asymmetry
• Unparticle-Enhanced Black Holes at the LHC
• Global Study of Electron-Quark Unparticle Interactions
• Antisymmetric tensor unparticle and the radiative lepton flavor violating decays
• A solution to the mu problem in the supersymmetric unparticle physics
• The effect of antisymmetric tensor unparticle mediation on the charged lepton electric dipole moment
• On Unparticles and K+ to pi+ Missing Energy
• Bosonic Seesaw in the Unparticle Physics
• Unparticle effects on cosmic ray photon and $e^{\pm }$
• Vector unparticle contributions to lepton g-2