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Related papers: Round table on Standard Model Anomalies

200 papers

We review the role of the anomalous magnetic moment of the muon a_\mu as a powerful probe of physics beyond the Standard Model (BSM), taking advantage of the final result of the Fermilab g-2 experiment and the recently updated Standard…

High Energy Physics - Phenomenology · Physics 2026-02-27 Peter Athron , Kilian Möhling , Dominik Stöckinger , Hyejung Stöckinger-Kim

Now that the Fermilab muon $g-2$ experiment has released the results of its Run-1 data, which agrees with the results of the Brookhaven experiment, one can examine the potential of simple extensions to explain the combined $4.2\sigma$…

High Energy Physics - Phenomenology · Physics 2021-10-15 Peter Athron , Csaba Balázs , Douglas Jacob , Wojciech Kotlarski , Dominik Stöckinger , Hyejung Stöckinger-Kim

Recently, several $B$-physics experiments have reported an appreciable deviation from the Standard Model (SM) in the tree-level observables $R_{D^{(*)}}$; the combined weighted average now stands at $\approx 4 \sigma$. We first show the…

High Energy Physics - Phenomenology · Physics 2017-11-22 Wolfgang Altmannshofer , P. S. Bhupal Dev , Amarjit Soni

We argue that the chiral anomaly of $\Ncal = 1$ super Yang-Mills theory admits a dual description as spontaneous symmetry breaking in M theory on $G_2$ holonomy manifolds. We identify an angle of the $G_2$ background dual to the anomalous…

High Energy Physics - Theory · Physics 2009-11-10 Umut Gursoy , Sean A. Hartnoll , Ruben Portugues

The long-standing muon $g-2$ anomaly has been confirmed recently at the Fermilab. The combined discrepancy from Fermilab and Brookhaven results shows a difference from the theory at a significance of 4.2 $\sigma$. In addition, the LHC has…

High Energy Physics - Phenomenology · Physics 2021-06-04 Wen Yin

To explaine the matter-antimatter asymmetry, a supersymmetric extention of the standard model is proposed where baryon and lepton numbers are local gauged(BLMSSM), and exotic superfields are introduced when gauge group is enlarged to…

High Energy Physics - Phenomenology · Physics 2017-08-23 Hui Li , Jian-Bin Chen , Li-Li Xing

Discrepancies between measurements of decay modes with an underlying quark level transition $b\to s \ell^+\ell^-$ and standard model (SM) predictions have persisted for several years, particularly for the muon channels. The inadequacy of…

High Energy Physics - Phenomenology · Physics 2019-06-26 Bernat Capdevila , Ursula Laa , German Valencia

Lower-dimensional (hyper)surfaces that can carry gauge or gauge/gravitational anomalies occur in many areas of physics: one-plus-one-dimensional boundaries or two-dimensional defect surfaces in condensed matter systems, four-dimensional…

High Energy Physics - Theory · Physics 2016-11-23 Adel Bilal

Conventional ordering transitions, described by the Landau paradigm, are characterized by the symmetries broken at the critical point. Within the constrained manifold occurring at low temperatures in certain frustrated systems,…

Statistical Mechanics · Physics 2014-01-14 Stephen Powell

The electron and muon anomalous magnetic moments (AMM) are measured in experiments and studied in the Standard Model (SM) with the highest precision accessible in particle physics. The comparison of the measured quantity with the SM…

High Energy Physics - Phenomenology · Physics 2015-06-19 A. E. Dorokhov , A. E. Radzhabov , A. S. Zhevlakov

While the muon $g-2$ anomaly can be successfully explained by some new physics models, most of them are severely constrained by the $\mu \to e \gamma$ bound. This tension is more transparent from the effective field theory perspective, in…

High Energy Physics - Phenomenology · Physics 2015-01-20 Wei-Chi Chiu , Chao-Qiang Geng , Da Huang

In this talk, we summarize the collider phenomenology and recent experimental results for various models of extra dimensions, including the large extra dimensions (ADD model), warped extra dimensions (Randall-Sundrum model),…

High Energy Physics - Phenomenology · Physics 2007-05-23 Kingman Cheung

I will review the current status of exotic hadrons in the meson sector. There is currently strong evidence that a scalar glueball mixed into the normal scalar mesons has been found. There is also an interesting candidate for the tensor…

High Energy Physics - Experiment · Physics 2009-10-30 C. A. Meyer

The central value and theoretical uncertainties on the cross section ratio sigma_W/sigma_Z at the Tevatron are evaluated using the NNLO calculations and the latest MSTW PDFs. The partial width, total width and branching ratios of the W…

High Energy Physics - Phenomenology · Physics 2012-03-15 Peter Renton

In most versions of beyond the standard model (BSM) physics, the Yukawa couplings of the quarks and charged leptons are not all to the same complex scalar doublet but to different ones. Comparison to the standard model (SM) with only one…

High Energy Physics - Phenomenology · Physics 2015-08-14 Paul H. Frampton , Thomas W. Kephart

Supersymmetry, a new symmetry that relates bosons and fermions in particle physics, still escapes observation. Search for supersymmetry is one of the main aims of the Large Hadron Collider. The other possible manifestation of supersymmetry…

High Energy Physics - Phenomenology · Physics 2012-12-12 A. V. Gladyshev , D. I. Kazakov

By means of the quark mass density-dependent model, a possible explanation for the doubly charged anomalous event with Z/A=0.114 reported by Alpha Magnetic Spectrometer Collaboration is given. It seems a strangelet. The composition, radius…

Nuclear Theory · Physics 2007-05-23 Yun Zhang , Ru-Keng Su

We study $\epsilon'/\epsilon$ in the Standard Model and $\epsilon'/\epsilon$ due to anomalous $WW\gamma$ and $WWZ$ interactions %using recent result on the top quark mass from CDF. as a function of the top quark mass. In the Standard Model,…

High Energy Physics - Phenomenology · Physics 2010-11-01 Xiao-Gang He , B. H. J. McKellar

In the past few years the field of hadron spectroscopy has seen renewed interest due to the pubblication, initially mostly from B-Factories, of evidences of states that do not match regular spectroscopy, but are rather candidates for bound…

High Energy Physics - Phenomenology · Physics 2011-02-03 N. Drenska , R. Faccini , F. Piccinini , A. Polosa , F. Renga , C. Sabelli

We explore to what extent the various assumptions behind the standard model as well as the observed quantization of electric charges of quarks and leptons can be understood using the Adler-Bell-Jackiw anomalies. The effect of including a…

High Energy Physics - Phenomenology · Physics 2016-11-03 R. N. Mohapatra
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