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Related papers: 23, 381, 6242, 103268, 1743183, ...: Hilbert serie…

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CP violation from physics beyond the Standard Model is investigated in $B_{l4}$ decays: $B\to D\pi l\bar{\nu}_l$. The semileptonic $B$-meson decay to a $D$-meson with an emission of single pion is analyzed with heavy quark effective theory…

High Energy Physics - Phenomenology · Physics 2009-10-31 C. S. Kim , Jake Lee , W. Namgung

Using the production of a Higgs boson in association with a $W$ boson as a test case, we assess the impact of dimension-8 operators within the context of the Standard Model Effective Field Theory. Dimension-8--SM-interference and…

High Energy Physics - Phenomenology · Physics 2019-03-27 Chris Hays , Adam Martin , Veronica Sanz , Jack Setford

We elaborate on a new class of models proposed recently by us and compare with another class proposed by Georgi and Glashow(GG). The models can be roughly classified as the righted-handed (or left-handed) models in our (or GG's) case. Both…

High Energy Physics - Phenomenology · Physics 2007-05-23 David Bowser-Chao , Darwin Chang , Wai-Yee Keung

The quest for new sources of the simultaneous violation of $C$ and $CP$ symmetry was popular in the 1960s and has since been mostly neglected for more than half a century. In this work we revisit fundamental quark-level operators that break…

High Energy Physics - Phenomenology · Physics 2023-06-30 Hakan Akdag , Bastian Kubis , Andreas Wirzba

We update the CP-violating asymmetries in K^+ -> 3 pi. In particular we study Delta g_C and Delta g_N -the asymmetries in the slope g. We emphasize its complementarity to the direct CP-violation parameter epsilon_K' and the large…

High Energy Physics - Phenomenology · Physics 2007-05-23 Elvira Gamiz , Joaquim Prades , Ignazio Scimemi

The gauge-invariant operators up to dimension six in the low-energy effective field theory below the electroweak scale are classified. There are 70 Hermitian dimension-five and 3631 Hermitian dimension-six operators that conserve baryon and…

High Energy Physics - Phenomenology · Physics 2024-03-21 Elizabeth E. Jenkins , Aneesh V. Manohar , Peter Stoffer

We review CP violation in various extensions of the electroweak sector of the Standard Model. A particular emphasis is put on supersymmetric models. We describe the two CP problems of supersymmetry, concerning $d_N$ and $\epsilon_K$. We…

High Energy Physics - Phenomenology · Physics 2016-11-03 Yuval Grossman , Yosef Nir , Riccardo Rattazzi

We propose a generic and model-independent search strategy for probing tree-level CP-violation in inclusive multi-lepton signals and we extend the standard expression for tree-level CP-violation in scattering processes at the LHC to include…

High Energy Physics - Phenomenology · Physics 2023-05-17 Shaouly Bar-Shalom

Relativistic quantum systems that admit scattering experiments are quantitatively described by effective field theories, where $S$-matrix kinematics and symmetry considerations are encoded in the operator spectrum of the EFT. In this paper…

High Energy Physics - Theory · Physics 2017-11-22 Brian Henning , Xiaochuan Lu , Tom Melia , Hitoshi Murayama

We present a general model-independent formalism of measuring CP and CPT violating parameters through time-ordered integrated rates of correlated decays of $C=\pm 1$ entangled states of neutral pseudoscalar mesons. We give the general…

High Energy Physics - Phenomenology · Physics 2015-06-03 Zhijie Huang , Yu Shi

We construct a realistic model of CP violation in which CP is broken in the process of dimensional reduction and orbifold compactification from a five dimensional theories with $SU(3)\times SU(3) \times SU(3)$ gauge symmetry. CP violation…

High Energy Physics - Phenomenology · Physics 2009-11-10 Darwin Chang , Chian-Shu Chen , Chung-Hsien Chou , Hisaki Hatanaka

With no direct evidence for new physics at the TeV scale, deviations from the Standard Model (SM) can be explored systematically through Effective Field Theories (EFTs) such as the Standard Model EFT (SMEFT). SMEFT extends the SM by…

High Energy Physics - Experiment · Physics 2026-02-04 Dongwon Kim

CP violation in rare leptonic B decays are analyzed in the standard model (SM) and models beyond SM (supersymmetric models and two Higgs doublet models).

High Energy Physics - Phenomenology · Physics 2007-05-23 Chao-Shang Huang , Wei Liao

A global analysis of the Standard Model Effective Field Theory (SMEFT) with SFitter is performed using measurements of single top quark production and top quark decay processes from ATLAS and CMS at center-of-mass energies of 7, 8 and 13…

High Energy Physics - Phenomenology · Physics 2019-05-10 Rhea Moutafis

We investigate systematically dimension-9 operators in the standard model effective field theory which contains only standard model fields and respects its gauge symmetry. With the help of the Hilbert series approach to classifying…

High Energy Physics - Phenomenology · Physics 2020-11-30 Yi Liao , Xiao-Dong Ma

We consider spontaneous CP violation in the Next to Minimal Supersymmetric Standard Model (NMSSM), without the usual $Z_3$ discrete symmetry. CP violation can occur at tree level, raising a potential conflict with the experimental bounds on…

High Energy Physics - Phenomenology · Physics 2007-05-23 A. T. Davies , C. D. Froggatt , A. Usai

We investigate precision observables sensitive to custodial symmetric/violating UV physics beyond the Standard Model. We use the SMEFT framework which in general includes non-oblique corrections that requires a generalization of the…

High Energy Physics - Phenomenology · Physics 2021-09-15 Graham D. Kribs , Xiaochuan Lu , Adam Martin , Tom Tong

We discuss the prospects for observing CP violation in the MSSM with six CP-violating phases, using a geometric approach to maximise CP-violating observables subject to the experimental upper bounds on electric dipole moments. We consider…

High Energy Physics - Phenomenology · Physics 2016-11-17 A. Arbey , J. Ellis , R. M. Godbole , F. Mahmoudi

In this paper we consider a problem of the similarity of complex symmetric operators to perturbations of restrictions of normal operators. For a subclass of cyclic complex symmetric operators in a finite-dimensional Hilbert space we prove…

Functional Analysis · Mathematics 2021-06-29 Sergey M. Zagorodnyuk

Supersymmetric extensions of the Standard Model open up the possibility for new types of CP-violation. We consider the case of the Next-to-Minimal Supersymmetric Standard Model where, beyond the phases from the soft lagrangian, CP-violation…

High Energy Physics - Phenomenology · Physics 2015-06-23 Florian Domingo
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