U(1)' Physics Analysis Group

U(1)' GROUP ORGANIZATION

• Durmus Ali Demir (IZTECH)
• Kerem Cankocak (Iowa and ITU)
• Mariana Frank (Concordia)
• Ismail Turan (Concordia and Ottawa)
• Sezen Sekmen (Florida)
• Burak Bilki (Iowa)
• Ferhat Ozok (Iowa and IU)
• Oktay Dogangun (IZTECH)

U(1)' GROUP PUBLICATIONS & DOCUMENTS

• U(1)' Seminar on 23/07/2009 by Durmus Ali Demir
• LHC Signatures of U(1)' Model Seminar on 17/12/2008 by Ismail Turan

U(1)' LITERATURE

Sources of U(1)'

• GUT
  • Extra gauge bosons in E6,1986
  • Minimally extended electroweak gauge theories in SO(10) and E6, 1982
• Extra Dimension
  • Effects of SM Kaluza-Klein excitations on electroweak observables, 1999
• Superstring
  • Classification of Flat Directions in Perturbative Heterotic Superstring Vacua with Anomalous U(1), 1997
  • Physics Implications of Flat Directions in Free Fermionic Superstring Models I: Mass Spectrum and Couplings, 1998
  • Physics Implications of Flat Directions in Free Fermionic Superstring Models II: Renormalization Group Analysis, 1998
  • New Gauge Bosons from String Models, 1996
  • Toward Realistic Intersecting D-Brane Models, 2005
• Strong Dynamics
  • Strong Dynamics and Electroweak Symmetry Breaking, 2002
• Little Higgs
  • Electroweak symmetry breaking from dimensional deconstruction, 2001
  • The Minimal Moose for a Little Higgs, 2002
  • Phenomenology of the Little Higgs Model, 2003
• Stueckelberg mechanism
  • How Stueckelberg Extends the Standard Model and the MSSM, 2004
  • A Supersymmetric Stueckelberg U(1) Extension of the MSSM, 2004
  • Aspects of the Stueckelberg Extension, 2005
  • The Stueckelberg Z Prime at the LHC: Discovery Potential, Signature Spaces and Model Discrimination, 2006
  • Extra-weakly Interacting Dark Matter, 2006
  • Hidden fermion as milli-charged dark matter in Stueckelberg Z' model, 2007
  • The Stueckelberg Extension and Milli Weak and Milli Charge Dark Matter, 2007

U(1)' Symmetry Breaking at TeV-scale:

• One or more additional scalar fields are required to break the U(1)' symmetry.
• U(1)' symmetry breaking can be related to the EWSB and SUSY breaking especially when they are broken at TeV-scale.
• Especially, the TeV-scale U(1)' model can explain the mu-problem.
  • Implications of Abelian Extended Gauge Structures From String Models, 1995
• The mu-term in the MSSM (Minimal Supersymmetric Standard Model) is the only dimensionful parameter in the supersymmetry conserving sector. To have the electroweak symmetry breaking at the right-order, mu should be of the same order of supersymmetry breaking (TeV-scale) but the MSSM does not explain its origin. The mu in a U(1)' model is the vacuum expectation value of the singlet Higgs that is broken at TeV scale. Since it is the continuous gauge symmetry, it does not have the domain wall problem which is invoked in the NMSSM (Next-to-Minimal Supersymmetric Standard Model) that has the singlet with the discrete symmetry.
• There are more explicit models for the TeV-scale supersymmetric U(1)' that solve the mu-problems.
  • Phenomenological aspects of U(1)-prime models, 2009
  • Search for Gauge Extensions of the MSSM at the LHC, 2009
  • The Physics of Heavy Z-prime Gauge Bosons, 2008
  • Dirac Neutrino Masses from Generalized Supersymmetry Breaking, 2008
  • LEP indications for two light Higgs bosons and U(1)-prime model, 2006
  • The Minimal U(1)' extension of the MSSM, 2005
  • CP violation in supersymmetric U(1) prime models, 2004
  • Distinguishing the Higgs scalars of NMSSM and Z-prime models for large Higgs trilinear couplings, 1999
  • Implications of Delta rho and CHARM-II data for Z-prime physics, 1999
  • Two Higgs doublet models from TeV scale supersymmetric extra U(1) models, 1999
  • U(1)' Symmetry Breaking in Supersymmetric E6 Models, 1998
  • One loop effects in supergravity models with an additional U(1), 1998
  • Higgsstrahlung in Abelian extended supersymmetric standard model, 1998
  • e+ e- ---> (h A) ---> bbbb in Abelian extended supersymmetric standard model, 1997
  • Electroweak breaking and the mu problem in supergravity models with an additional U(1), 1997
  • Minimal E_6 Supersymmetric Standard Model, 2007
  • The Z-Z' Mass Hierarchy in a Supersymmetric Model with a Secluded U(1)'-Breaking Sector, 2002
• Bottom-Up rationale for the TeV-scale Z'
  • Beyond the MSSM, 2004
• Top-Down rationale for the TeV-scale Z'
  • Z' Physics and Supersymmetry, 1997
• SUSY breaking and U(1)'
  • A low-energy solution to the mu-problem in gauge mediation, 1999

Other Solutions to the mu-problem besides the non-anomalous U(1)' symmetry at TeV-scale:

• Another solution of the mu-problem: The mu-term is absent by a symmetry but an effective mu-term is generated by non-renormalizable operators
  • A natural solution to the mu-problem in supergravity theories, 1988
  • A Natural Solution to the MU Problem, 1993
• A number of string models possess non-renormalizable terms in the Kahler potential, which are proportional to H1 H2, and may thus provide a resolution to the mu-problem.
  • In Erice 1992 Proceedings From Superstrings to Super- gravity (World Scientific 1994, M. Duff et al., eds.), p 234. [V. Kaplunovsky, J. Louis]
  • Effective Mu-Term in Superstring Theory, 1994
  • Moduli spaces and target space duality symmetries in (0,2) Z_N orbifold theories with continuous Wilson lines, 1994
• Another solution of the mu-problem: With an anomalous U(1)' symmetry
  • U(1)_A Models of Fermion Masses Without a mu Problem,1995
  • Gauge Unification, Yukawa Hierarchy and the mu Problem, 1995
• This anomalous U(1)' symmetry was originally introduced to explain the Yukawa textures.
  • Yukawa Textures and Anomalies, 1994
  • Models of Fermion Mass Matrices Based on a Flavor- and Generation-Dependent U(1) Gauge Symmetry, 1994
  • Fermion masses and mixing angles from gauge symmetries, 1994
• The anomaly may be cancelled by the Green-Schwarz mechanism.
  • Anomaly cancellations in supersymmetric D=10 gauge theory and superstring theory, 1984
• Common solution of the mu-problem and strong CP-problem.
  • A Natural solution of the mu problem with a composite axion in the hidden sector, 1992
  • Stabilizing the axion and a natural solution to the mu problem of supersymmetry, 2004
  • Simultaneous Solutions of the Strong CP and Mu Problems, 2004
  • The mu Problem and the Invisible Axion, 1992
  • Inflationary Solution to the Strong CP and mu Problems, 2004

SOFTWARE

• • JetCommAnalzer twiki

PHYSICS ANALYSIS

• Analysis Planning and Preparation
• Approved Analysis Results
• Ongoing analyses

MC Data Ntuple Production

*List of Produced NTuple Data Sets:

MSSM samples:

-NTuple_curie_ultimate_all_mssm_S2_sqsq_RR_10K_RECO_x_y.root

-NTuple_curie_ultimate_all_mssm_S2_sqsq_LR_10K_RECO_x_y.root

-NTuple_curie_ultimate_all_mssm_S2_sqsq_LL_10K_RECO_x_y.root

-NTuple_curie_ultimate_all_mssm_S2_gsq_RR_10K_RECO_x_y.root

-NTuple_curie_ultimate_all_mssm_S2_gsq_LL_10K_RECO_x_y.root

-NTuple_curie_ultimate_all_mssm_S2_gsq_LR_10K_RECO_x_y.root

-NTuple_curie_ultimate_all_mssm_S2_gg_RR_10K_RECO_x_y.root

-NTuple_curie_ultimate_all_mssm_S2_gg_LR_10K_RECO_x_y.root

-NTuple_curie_ultimate_all_mssm_S2_gg_LL_10K_RECO_x_y.root

U(1)Prime samples:

-NTuple_curie_ultimate_all_S2_gg_LR_10K_RECO_x_y.root

-NTuple_curie_ultimate_all_S2_gg_RR_10K_RECO_x_y.root

-NTuple_curie_ultimate_all_S2_gg_LL_10K_RECO_x_y.root

-NTuple_curie_ultimate_all_S2_gsq_LL_10K_RECO_x_y.root

-NTuple_curie_ultimate_all_S2_gsq_LR_10K_RECO_x_y.root

-NTuple_curie_ultimate_all_S2_gsq_RR_10K_RECO_x_y.root

-NTuple_curie_ultimate_all_mssm_S2_sqsq_LL_10K_RECO_x_y.root

-NTuple_curie_ultimate_all_mssm_S2_sqsq_LR_10K_RECO_x_y.root

-NTuple_curie_ultimate_all_mssm_S2_sqsq_RR_10K_RECO_x_y.root

all Ntuples located at /castor/cern.ch/user/o/ozok/u1prime

Useful Links (PAGs, POGs, DPGs, Trigger, etc)

• E-gamma POG
• Muon POG
• JetMET POG
• Btag POG
• PFlow and Tau ID POG
• Generators
• Trigger Studies Group
• QCD PAG
• EWK PAG
• Top PAG