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A non-vanishing vacuum expectation value for an antisymmetric tensor field leads to the violation of Lorentz invariance, controlled by the dimension (-2) parameter, theta_{mu nu}. We assume that the zeroth order term in theta-expansion…

High Energy Physics - Phenomenology · Physics 2017-08-23 Irina Mocioiu , Maxim Pospelov , Radu Roiban

Recently a version of Lorentz-conserving noncommutative field theory (NCFT) has been suggested. The underlying Lie algebra of the theory is the same as that of Doplicher, Fredenhagen, and Roberts. In Lorentz-conserving NCFT the matrix…

High Energy Physics - Phenomenology · Physics 2009-11-10 Justin M. Conroy , Herry J. Kwee , Vahagn Nazaryan

Physics at the Large Hadron Collider (LHC) and the International e+e- Linear Collider (ILC) will be complementary in many respects, as has been demonstrated at previous generations of hadron and lepton colliders. This report addresses the…

High Energy Physics - Phenomenology · Physics 2012-08-27 LC Study Group , G. Weiglein , T. Barklow , E. Boos , A. De Roeck , K. Desch , F. Gianotti , R. Godbole , J. F. Gunion , H. E. Haber , S. Heinemeyer , J. L. Hewett , K. Kawagoe , K. Monig , M. M. Nojiri , G. Polesello , F. Richard , S. Riemann , W. J. Stirling , A. G. Akeroyd , B. C. Allanach , D. Asner , S. Asztalos , H. Baer , M. Battaglia , U. Baur , P. Bechtle , G. Belanger , A. Belyaev , E. L. Berger , T. Binoth , G. A. Blair , S. Boogert , F. Boudjema , D. Bourilkov , W. Buchmuller , V. Bunichev , G. Cerminara , M. Chiorboli , H. Davoudiasl , S. Dawson , S. De Curtis , F. Deppisch , M. A. Diaz , M. Dittmar , A. Djouadi , D. Dominici , U. Ellwanger , J. L. Feng , I. F. Ginzburg , A. Giolo-Nicollerat , B. K. Gjelsten , S. Godfrey , D. Grellscheid , J. Gronberg , E. Gross , J. Guasch , K. Hamaguchi , T. Han , J. Hisano , W. Hollik , C. Hugonie , T. Hurth , J. Jiang , A. Juste , J. Kalinowski , W. Kilian , R. Kinnunen , S. Kraml , M. Krawczyk , A. Krokhotine , T. Krupovnickas , R. Lafaye , S. Lehti , H. E. Logan , E. Lytken , V. Martin , H. -U. Martyn , D. J. Miller , S. Moretti , F. Moortgat , G. Moortgat-Pick , M. Muhlleitner , P. Niezurawski , A. Nikitenko , L. H. Orr , P. Osland , A. F. Osorio , H. Pas , T. Plehn , W. Porod , A. Pukhov , F. Quevedo , D. Rainwater , M. Ratz , A. Redelbach , L. Reina , T. Rizzo , R. Ruckl , H. J. Schreiber , M. Schumacher , A. Sherstnev , S. Slabospitsky , J. Sola , A. Sopczak , M. Spira , M. Spiropulu , Z. Sullivan , M. Szleper , T. M. P. Tait , X. Tata , D. R. Tovey , A. Tricomi , M. Velasco , D. Wackeroth , C. E. M. Wagner , S. Weinzierl , P. Wienemann , T. Yanagida , A. F. Zarnecki , D. Zerwas , P. M. Zerwas , L. Zivkovic

The formulation and some experimental implications of a general Lorentz-violating extension of the standard model are reviewed. The theory incorporates both CPT-preserving and CPT-breaking terms. It is otherwise a conventional quantum field…

High Energy Physics - Phenomenology · Physics 2007-05-23 Alan Kostelecky

Non-commutative QED would lead to deviations from the Standard Model depending on a new energy scale Lambda_NC and a unique direction in space defined by two angles eta and xi. Here in this analysis eta is defined as the angle between the…

High Energy Physics - Experiment · Physics 2012-08-27 The OPAL collaboration

We examine Lorentz-violating effects that could appear through deviations of the Standard Model gauge couplings WWgamma and WWgammagamma. These new physics effects are explored on the gamma gamma -> WW reaction at the International Linear…

High Energy Physics - Phenomenology · Physics 2015-06-17 J. I. Aranda , F. Ramirez-Zavaleta , F. J. Tlachino , J. J. Toscano , E. S. Tututi

I will discuss the recent LHC and Planck results, which are completely compatible with the Standard Model of particle physics, and the standard cosmological model ($\Lambda$CDM), respectively. It turns out that the extension of the Standard…

High Energy Physics - Phenomenology · Physics 2013-12-17 Fedor Bezrukov

The International Linear Collider (ILC) is the next large scale project in accelerator particle physics. Colliding electrons with positrons at energies from 0.3 TeV up to about 1 TeV, the ILC is expected to provide the accuracy needed to…

High Energy Physics - Experiment · Physics 2016-11-23 Marco Battaglia

In this contribution we discuss the Noncommutative Standard Model and the associated Standard Model-forbidden decays that can possibly serve as an experimental signature of space-time noncommutativity.

High Energy Physics - Phenomenology · Physics 2015-06-25 Peter Schupp , Josip Trampetic

In this work, we investigate the sensitivity of the process p + p --> q + q --> j + j + gamma + gamma at LHC for the photonic 3- and 4- point functions that appear in non commutative QED. We show that this process serves to study the…

High Energy Physics - Phenomenology · Physics 2009-11-10 S. M. Lietti , C. A. de S. Pires

With the discovery of a Higgs boson at LHC, all particles of the Standard Model seem to have been observed experimentally, yet many questions are left unanswered. The discovery has intensified the planning for future high-energy colliders,…

High Energy Physics - Experiment · Physics 2016-07-04 Naomi van der Kolk

Using the most general, model independent form of effective Hamiltonian, the transverse polarization P_T of Lambda in Lambda_b -> Lambda l^+ l^- decay is studied. It is observed that the averaged <P_T> is very sensitive to the existence of…

High Energy Physics - Phenomenology · Physics 2011-03-23 T. M. Aliev , A. Ozpineci , M. Savci , C. Yuce

Non-Commutative (NC) effects in planar quantum mechanics are investigated. We have constructed a {\it{Master}} model for a noncommutative harmonic oscillator by embedding it in an extended space, following the Batalin-Tyutin \cite{bt}…

High Energy Physics - Theory · Physics 2009-11-10 Subir Ghosh

We study the prospects of testing the $WW\gamma$ vertex in $e^- p\to\nu\gamma X$ and $e^+ p\to\nu\gamma X$ at HERA and LEP/LHC. Destructive interference effects between the Standard Model and the anomalous contributions to the amplitude…

High Energy Physics - Phenomenology · Physics 2009-10-22 U. Baur , M. A. Doncheski

We study Z--> l^+ l^- and W--> nu_l l^+ decays in the standard model including the noncommutative effects. We observe that these effects appear in the flavor dependent part of the decay widths of the processes under consideration and…

High Energy Physics - Phenomenology · Physics 2011-03-23 E. O. Iltan , M. E. T. U , Ankara

The planned next generation of linear colliders (NLCs) will be able to probe the infrared structure of Standard Model electroweak interactions, that determines the behavior of electroweak radiative corrections at TeV scale energies. I…

High Energy Physics - Phenomenology · Physics 2007-05-23 Paolo Ciafaloni

The experimental detection of the effects of noncommuting coordinates in electrodynamic phenomena depends on the magnitude of |\theta B|, where \theta is the noncommutativity parameter and B a background magnetic field. With the present…

High Energy Physics - Phenomenology · Physics 2011-06-08 P. Castorina , A. Iorio , D. Zappalá

The prospects for the discovery and exploration of low-energy Supersymmetry at future colliders, the Large Hadron Collider (LHC) and the future international linear electron positron collider (ILC) are summarized. The focus is on the…

High Energy Physics - Phenomenology · Physics 2007-05-23 Klaus Desch

The Three-Higgs-Doublet Model (3HDM) extends the Standard Model by introducing two additional scalar doublets, leading to a rich spectrum of new particles: three neutral CP-even Higgs bosons ($h_1$, $H_2$, $H_3$), two neutral CP-odd Higgs…

High Energy Physics - Phenomenology · Physics 2026-03-13 Baradhwaj Coleppa , Akshat Khanna , Gokul B. Krishna

This presentation gives the prospects of measuring the general Lorentz structures of $VVH$ ($V=Z$, $\gamma$ and $W$) couplings at the International Linear Collider (ILC). Sensitivities to Higgs CP-even and CP-odd structures are evaluated by…

High Energy Physics - Experiment · Physics 2018-12-11 Tomohisa Ogawa , Junping Tian , Keisuke Fujii