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相关论文: Flavor Hierarchies in Fundamental Partial Composit…

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I review the idea of realizing the Higgs as a composite pseudo-Nambu-Goldstone boson of a new strongly-interacting sector and collect major constraints on the parameter space of minimal models. Besides limits from electroweak precision…

高能物理 - 唯象学 · 物理学 2022-09-21 Florian Goertz

We present a unified picture of flavor and electroweak symmetry breaking based on a nonlinear sigma model spontaneously broken at the TeV scale. Flavor and Higgs bosons arise as pseudo-Goldstone modes. Explicit collective symmetry breaking…

高能物理 - 唯象学 · 物理学 2009-11-10 Federica Bazzocchi , Marco Fabbrichesi

We present a unified picture of flavor and electroweak symmetry breaking at the TeV scale. Flavor and Higgs bosons arise as pseudo-Goldstone modes in a nonlinear sigma model. Explicit collective symmetry breaking yields stable vacuum…

高能物理 - 唯象学 · 物理学 2009-11-10 F. Bazzocchi , M. Fabbrichesi

We should be taking advantage of recent gains in our nonperturbative understanding of supersymmetric gauge theories to find the ``standard'' model of of dynamical supersymmetry breaking, and possibly of flavor as well. As an illustration of…

高能物理 - 唯象学 · 物理学 2009-10-28 Ann E Nelson

Present situation in the flavour mixing of quarks and leptons is briefly reviewed and a new approach called the Minimal Flavour Mixing (MFM) is considered in detail. According to MFM the whole of the flavour mixing is basically determined…

高能物理 - 唯象学 · 物理学 2017-08-23 J. L. Chkareuli

The minimal flavor structures for both quarks and leptons are proposed to address fermion mass hierarchy and flavor mixings by bi-unitary decomposition of the fermion mass matrix. The real matrix ${\bf M}_0^f$ is completely responsive to…

高能物理 - 唯象学 · 物理学 2022-02-16 Ying Zhang

The results of an extensive flavour physics analysis in the Littlest Higgs model with T-parity are presented. In particular, mixing and CP-violation in K^0 and B^0_{d,s} systems have been studied. Several scenarios defined by the values of…

高能物理 - 唯象学 · 物理学 2007-05-23 Cecilia Tarantino

New light singlet scalars with flavor-specific couplings represent a phenomenologically distinctive and flavor-safe alternative to the well-studied possibility of Higgs-portal scalars. However, in contrast to the Higgs portal,…

高能物理 - 唯象学 · 物理学 2022-01-12 Brian Batell , Ayres Freitas , Ahmed Ismail , David McKeen , Mudit Rai

We propose a simple $U(2)$ model of flavor compatible with an $SU(5)$ GUT structure. All hierarchies in fermion masses and mixings arise from powers of two small parameters that control the $U(2)$ breaking. In contrast to previous $U(2)$…

高能物理 - 唯象学 · 物理学 2018-08-29 Matthias Linster , Robert Ziegler

Flavour-Changing-Neutral-Currents (FCNC) play an important r\^ ole in testing the Standard Model (SM) while probing the possibility of having New Physics beyond the SM. In the SM, FCNC are forbidden at three level, but arise through…

高能物理 - 唯象学 · 物理学 2013-08-22 G. C. Branco , M. N. Rebelo

We discuss scenarios for BSM physics near the TeV, motivated by the hierarchy problem and the flavour puzzle, and review their experimental tests at present and future colliders. Strong LHC constraints on couplings to light quarks motivate…

高能物理 - 唯象学 · 物理学 2025-01-28 Joe Davighi

Strongly coupled supersymmetric theories can give rise to composite quarks and leptons at low energy. We show that the internal structure of these particles can explain the origin of three generations and provide a qualitative understanding…

高能物理 - 唯象学 · 物理学 2016-09-06 David B. Kaplan , Francois Lepeintre , Martin Schmaltz

We observe that a recently proposed supersymmetric model with Q6 flavor symmetry admits a new CP violating ground state. A new sum rule for the quark mixing parameters emerges, which is found to be consistent with data. Simple extensions of…

高能物理 - 唯象学 · 物理学 2011-05-25 K. S. Babu , Kenji Kawashima , Jisuke Kubo

We complete the analysis of the effective field theory at the electroweak scale for minimal models of fundamental partial compositeness. Specifically, we consider fermions in the complex and real representation of the gauge group underlying…

高能物理 - 唯象学 · 物理学 2020-08-26 Alessandro Agugliaro , Francesco Sannino

The extension of the Standard Model to $SU(3)_L \times SU(3)_R \times SU(3)_C$ (the trinification group) augmented by the $ SO(3)_G $ flavor group is considered. In our phenomenological treatment partly known and partly proposed vacuum…

高能物理 - 唯象学 · 物理学 2015-06-19 Berthold Stech

A realistic five-dimensional warped scenario with all standard model fields propagating in the bulk is proposed. Mass hierarchies would in principle be accounted for by judicious choices of the bulk mass parameters, while fermion mixing…

高能物理 - 唯象学 · 物理学 2016-07-18 Peng Chen , Gui-Jun Ding , Alma. D. Rojas , C. A. Vaquera-Araujo , J. W. F. Valle

We show how two principles - strong coupling and discrete symmetry - can work together to generate the flavour structure of the Standard Model. We propose that in the UV the full theory has a discrete flavour symmetry, typically only…

高能物理 - 唯象学 · 物理学 2015-03-17 Steven Abel , James Barnard

We review flavour and CP violations in the lepton sector as probes of new physics beyond the standard model and its minimal extensions accommodating massive neutrinos. After recalling the main experimental bounds and the future…

高能物理 - 唯象学 · 物理学 2015-09-29 Ferruccio Feruglio

Flavour changing neutral current processes, being strongly suppressed in the Standard Model (SM), provide a unique window to new physics at scales much above the electroweak scale. Here, we summarize the recent progress in flavour physics…

高能物理 - 唯象学 · 物理学 2011-03-23 Monika Blanke , Andrzej J. Buras

We discuss consequences of flavor mixings in the scalar fermion sector of supersymmetric models endowed with ultra heavy scalars. We find that, under extreme fine-tunings different than but similar in size to that needed to obtain a light…

高能物理 - 唯象学 · 物理学 2007-05-23 Durmus A. Demir