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相关论文: An E$_6$ interpretation of an $e^+ e^- \gamma \gam…

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The alternative $[SU(3)]^4$ model of leptonic color and dark matter is discussed. It unifies at $M_U \sim 10^{14}$ GeV and has the low-energy subgroup $SU(3)_q \times SU(2)_l \times SU(2)_L \times SU(2)_R \times U(1)_X$ with $(u,h)_R$…

高能物理 - 唯象学 · 物理学 2018-03-14 Corey Kownacki , Ernest Ma , Nicholas Pollard , Oleg Popov , Mohammadreza Zakeri

We interpret the diphoton anomaly as a heavy scalar $H_3$ in the so-called 331 model. The scalar is responsible for breaking the $SU(3)_C\otimes SU(3)_L\otimes U(1)_X$ gauge symmetry down to the standard model electroweak gauge group. It…

高能物理 - 唯象学 · 物理学 2016-04-27 Qing-Hong Cao , Yandong Liu , Ke-Pan Xie , Bin Yan , Dong-Ming Zhang

Recent theories propose that quantum gravity effects may be observable at LEP energies via gravitons that couple to Standard Model particles and propagate into extra spatial dimensions. The associated production of a graviton and a photon…

高能物理 - 实验 · 物理学 2012-08-27 L3 Collaboration

Single-particle radiative mechanism of $\gamma$ emission embedded into the pre-equilibrium exciton model is used to calculate the $\gamma$ emission from a decay of $^{160}$Er$^{*}$ created in two different ways. The initial stage of a…

核理论 · 物理学 2007-05-23 E. Betak

We explore the phenomenology of Grand Unified Models based on the E_6 group, focusing on the Z' with suppressed couplings to leptons that can appear in such models. We find that this Z' can accommodate the W+dijets anomaly reported by the…

高能物理 - 唯象学 · 物理学 2015-05-28 Matthew R. Buckley , Dan Hooper , Jonathan L. Rosner

We propose novel collider searches which can significantly improve the LHC reach to new gauge bosons $Z'$ with mixed anomalies with the electroweak (EW) gauge group. Such a $Z'$ necessarily acquires a Chern-Simons coupling to the EW gauge…

高能物理 - 唯象学 · 物理学 2018-05-23 Ahmed Ismail , Andrey Katz

The Standard Model (SM) represents our best description of the subatomic world and it has been very successful in explaining how elementary particles interact under the influence of the fundamental forces. Despite its far reaching success…

高能物理 - 实验 · 物理学 2022-12-28 Dongwi H. Dongwi

We present a unified no-scale supergravity model with a light gravitino that can naturally explain the observed $ee\gamma\gamma$ event at CDF via right-handed selectron pair-production. The full spectrum of our model can be described in…

高能物理 - 唯象学 · 物理学 2015-06-25 J. Lopez , D. Nanopoulos

Mass matrix of quarks is studied in the Supersymmetric $E_6$ Grand Unified Theory (GUT). The fundamental representation $\textbf{27}$ in $E_6$ which corresponds to one generation contains two sets of $\textbf{5}^{*}$'s in SU(5), so that…

高能物理 - 唯象学 · 物理学 2007-05-23 Midori Obara , Gi-Chol Cho , Makiko Nagashima , Akio Sugamoto

The decays $\mu \rightarrow e \gamma$, $\mu \rightarrow e \gamma \gamma$, and $\mu \rightarrow e e \bar e$ are analysed in the framework of the Pati-Salam type quark-lepton symmetry $SU(4)_V \otimes SU(2)_L \otimes G_R$ where the effects of…

高能物理 - 唯象学 · 物理学 2009-10-28 A. A. Gvozdev , A. V. Kuznetsov , N. V. Mikheev , L. A. Vassilevskaya

Within the context of the Standard Model, quarks are placed in a $(\mathbf{3},\mathbf{2})\oplus (\mathbf{3},\bar{\mathbf{2}})$ matter field representation of $U_{EW}(2)$. Although the quarks carry unit intrinsic electric charge in this…

高能物理 - 唯象学 · 物理学 2015-01-27 J. LaChapelle

Taken as a classification paradigm completing the standard model, a new compact form of the SU(2/1) supergroup explains many mysterious properties of the weak interactions: the maximal breaking of parity, the fractional charges of the…

高能物理 - 理论 · 物理学 2024-04-15 Jean Thierry-Mieg

The Standard Model of particle interactions is extended to include fermion doublets (n,e)_R transforming under the gauge group SU(2)_R such that n is a Dirac scotino (dark-matter fermion), with odd R parity. Based on recent CDMS data, it is…

高能物理 - 唯象学 · 物理学 2011-08-25 Ernest Ma

We chart new-physics models that produce exotic, high-multiplicity muon decays featuring prompt or displaced $e^+e^-$ pairs and/or photons, with or without missing energy, such as $\mu \to 5e$, $\mu \to 7e$, etc. Starting from an…

高能物理 - 唯象学 · 物理学 2025-10-13 Admir Greljo , Ajdin Palavrić , Mirsad Tunja , Jure Zupan

We examine the Standard Model under the electroweak symmetry group $U_{EW}(2)$ subject to the Lie algebra condition $\mathfrak{u}_{EW}(2)\not\cong \mathfrak{su}_{I}(2)\oplus \mathfrak{u}_{Y}(1)$. Physically, the condition ensures that all…

综合物理 · 物理学 2025-03-05 J. LaChapelle

The Standard Model of electroweak interactions is shown to include a gauge theory for the observed scalar and pseudoscalar mesons. This is done by exploiting the consequences of embedding the SU(2)left X U(1) group into the chiral group of…

高能物理 - 唯象学 · 物理学 2009-10-28 B. Machet

In usual extended technicolor (ETC) theories based on the group ${\rm{SU}(N_{ETC}})_{ETC}$, the quarks of charge 2/3 and -1/3 and the charged leptons of all generations arise from ETC fermion multiplets transforming according to the…

高能物理 - 唯象学 · 物理学 2011-02-01 Thomas A. Ryttov , Robert Shrock

In third quantization the origin of fermion families is easy to understand: the electron field, the muon field and the tau field are identical fields in precisely the same sense as three electrons are identical and undistinguishable…

高能物理 - 唯象学 · 物理学 2008-11-26 Francesco Caravaglios , Stefano Morisi

The electromagnetic and weak structure functions of the photon can be studied in the deep inelastic electron-photon processes e+gamma -> e+X and e+gamma -> nu+X. While at low energies only virtual photon exchange is operative in the…

高能物理 - 唯象学 · 物理学 2011-02-01 A. Gehrmann-De Ridder , H. Spiesberger , P. M. Zerwas

We point out that the extra neutralinos and charginos, generically appearing in a large class of $E_6$ inspired models, lead to distinctive signatures from gluino cascade decays involving longer decay chains, more visible transverse energy,…

高能物理 - 唯象学 · 物理学 2012-11-12 Alexander Belyaev , Jonathan P. Hall , Stephen F. King , Patrik Svantesson