Particle Physics at the LHC Start

Abstract

I present a concise review of the major issues and challenges in particle physics at the start of the LHC era. After a brief overview of the Standard Model and of QCD, I will focus on the electroweak symmetry breaking problem which plays a central role in particle physics today. The Higgs sector of the minimal Standard Model is so far just a mere conjecture that needs to be verified or discarded by the LHC. Probably the reality is more complicated. I will summarize the motivation for new physics that should accompany or even replace the Higgs discovery and a number of its possible forms that could be revealed by the LHC.

17 pages. From talks given at the 22nd Rencontres de Blois on Particle Physics and Cosmology, Blois, France, July 15-20, 2010, at the Symposium on High Energy Strong Interactions, Kyoto, Japan, August 9 -13, 2010 and at the LHC days in Split, Split, Croatia, October 4-9, 2010

References in corpus (67)

• The Hierarchy Problem and New Dimensions at a Millimeter
• Phenomenology, Astrophysics and Cosmology of Theories with Sub-Millimeter Dimensions and TeV Scale Quantum Gravity
• Dark Energy and the Accelerating Universe
• Modulus Stabilization with Bulk Fields
• The Minimal Composite Higgs Model
• Tri-Bimaximal Mixing and the Neutrino Oscillation Data
• The Anatomy of Electro-Weak Symmetry Breaking. II: The Higgs bosons in the Minimal Supersymmetric Model
• New Measurement of the Electron Magnetic Moment and the Fine Structure Constant
• A Positive-Weight Next-to-Leading-Order Monte Carlo for Heavy Flavour Hadroproduction
• Discrete Flavor Symmetries and Models of Neutrino Mixing
• Generalized Unitarity and One-Loop Amplitudes in N=4 Super-Yang-Mills
• Phenomenology with Massive Neutrinos
• Aspects of Split Supersymmetry
• Little Higgs Review
• Higgs as a Holographic Pseudo-Goldstone Boson
• A custodial symmetry for Zbb
• Three-flavour neutrino oscillation update
• Phenomenology of the Little Higgs Model
• Gauge Unification in Higher Dimensions
• Hadronic Z- and tau-Decays in Order alpha_s^4
• Towards a Realistic Model of Higgsless Electroweak Symmetry Breaking
• The 2009 World Average of ${\alpha }_s$
• Direct extraction of one-loop integral coefficients
• Hints of theta_13>0 from global neutrino data analysis
• Big Corrections from a Little Higgs
• Improved predictions for g-2 of the muon and α_{\rm QED}(M_Z^2)
• On-Shell Methods in Perturbative QCD
• Updated global fit to three neutrino mixing: status of the hints of theta13 > 0
• Top Quarks and Electroweak Symmetry Breaking in Little Higgs Models
• On the Rational Terms of the one-loop amplitudes
• Variations of Little Higgs Models and their Electroweak Constraints
• Precise Predictions for W + 4 Jet Production at the Large Hadron Collider
• Flavor Physics in the Quark Sector
• Decaying Dark Matter can explain the electron/positron excesses
• Electroweak Precision Constraints on the Littlest Higgs Model with T Parity
• The Minimal Composite Higgs Model and Electroweak Precision Tests
• Automated one-loop calculations: a proof of concept
• Next-to-Leading Order QCD Predictions for W+3-Jet Distributions at Hadron Colliders
• NLO QCD corrections to pp -> t anti-t b anti-b + X at the LHC
• Fermions on an Interval: Quark and Lepton Masses without a Higgs
• Gauge Unification In Six Dimensions
• NLO QCD corrections to top anti-top bottom anti-bottom production at the LHC: 2. full hadronic results
• Supersymmetry without a Light Higgs Boson
• Tasi 2009 lectures: The Higgs as a Composite Nambu-Goldstone Boson
• Naturally Speaking: The Naturalness Criterion and Physics at the LHC
• Living Dangerously with Low-Energy Supersymmetry
• A Complete Theory of Grand Unification in Five Dimensions
• Likelihood Functions for Supersymmetric Observables in Frequentist Analyses of the CMSSM and NUHM1
• A Three Site Higgsless Model
• A limit for the mu -> e gamma decay from the MEG experiment
• Supersymmetry and the MSSM: An Elementary Introduction
• Two Lectures on Technicolor
• T-Parity Violation by Anomalies
• TASI Lectures on Electroweak Symmetry Breaking from Extra Dimensions
• Composite Higgs Search at the LHC
• The Flavour Hierarchy and See-Saw Neutrinos from Bulk Masses in 5d Orbifold GUTs
• Doublet-Triplet Splitting in Realistic Heterotic String Derived models
• Les Houches Lectures on Warped Models and Holography
• A Weakly Coupled Ultraviolet Completion of the Littlest Higgs with T-parity
• Tenth-order lepton g-2: Contribution of some fourth-order radiative corrections to the sixth-order g-2 containing light-by-light-scattering subdiagrams
• 6D Higgsless Standard Model
• The Physics Case for the New Muon (g-2) Experiment
• Supersymmetry without a light Higgs boson at the LHC
• New theories for the Fermi scale
• Proceedings of the Workshop on Monte Carlo's, Physics and Simulations at the LHC PART II
• New results on the hadronic vacuum polarization to the muon g-2
• A Four-site Higgsless Model with Wavefunction Mixing

Cited by in corpus (5)

• Discovering Technicolor
• Renormalization group flows in a Lifshitz-like four fermi model
• Can Flavor Physics Hint at Distinctive Signals for R-parity Violation at the LHC?
• An Extraordinary Mass Invariant and an Obstruction in a Massive Superspin One Half Model made with a Chiral Dotted Spinor Superfield
• Computational Tools for Supersymmetry Calculations