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相关论文: Explaining the CMS Higgs flavor violating decay ex…

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We present an analysis of the lepton-flavor violating decay of the Higgs boson mediated by an ultralight gauge boson, $\chi$. Our analysis matches a model generating the lepton flavor-violating interaction $\bar{\ell}_i\ell_j\chi$ at tree…

高能物理 - 唯象学 · 物理学 2024-12-17 Marcela Marín , R. Gaitán , R. Martinez

We predict the branching ratios of Z-> e^{\pm} \mu^{\pm}, Z-> e^{\pm} \tau^{\pm} and Z-> \mu^{\pm} \tau^{\pm} decays in the framework of the 2HDM with the inclusion of one and two extra dimensions, by considering that the new Higgs doublet…

高能物理 - 唯象学 · 物理学 2008-11-26 E. Iltan

Lepton flavor violating Higgs decays could appear in scenarios beyond the Standard Model of particle physics. In this article, we study the sensitivity of a future Compact Linear Collider (CLIC) to such processes, namely, $h\rightarrow…

高能物理 - 唯象学 · 物理学 2026-05-12 Francisca Garay , Gabriel Vega , Philipp Roloff

Till today lepton flavor violation has not been observed in processes involving charged leptons. Hence, a search for it is under hot pursuit both in theories and experiments. In our current work, we investigate the rates of rare decay…

高能物理 - 唯象学 · 物理学 2020-11-02 Devidutta Gahan , Ng. K. Francis

In this work, we analyze the Higgs boson decay channels, specifically, $h{\rightarrow}\gamma\gamma$, $h{\rightarrow} VV^*$ (with $V=Z,W$), and $h{\rightarrow} f\bar{f}$ (for $f=b,c,\tau$) within the flavor-dependent $U(1)_F$ model (FDM). We…

高能物理 - 唯象学 · 物理学 2025-12-30 Zhan Cao , Jin-Lei Yang , Ti-Bin Hou , Tai-Fu Feng

The lepton flavor violating $Z^{\prime}\to\tau\mu$ decay is studied in the context of several extended models that predict the existence of the new gauge boson named $Z^\prime$. A calculation of the strength of the lepton flavor violating…

高能物理 - 唯象学 · 物理学 2015-06-04 J. I. Aranda , J. Montano , F. Ramirez-Zavaleta , J. J. Toscano , E. S. Tututi

We explore Two Higgs Doublet Models with non-standard flavor structures. In analogy to the four, well studied, models with natural flavor conservation (type 1, type 2, lepton-specific, flipped), we identify four models that preserve an…

高能物理 - 唯象学 · 物理学 2018-11-08 Wolfgang Altmannshofer , Brian Maddock

Lepton flavor violating Higgs boson decays (LFVHD) are studied in the context of the Minimal Supersymmetric Standard Model (MSSM) being embeded in a mSUGRA scenario that is enlarged with three right handed neutrinos and their supersymmetric…

高能物理 - 唯象学 · 物理学 2007-05-23 E. Arganda , A. M. Curiel , M. J. Herrero , D. Temes

In the search for a light Higgs boson, the ATLAS and CMS experiments have observed excesses in both the diphoton ($\gamma\gamma$) and di-tau-pair ($\tau^+\tau^-$) decay channels at about $95$ GeV. The LEP collaboration has also previously…

高能物理 - 唯象学 · 物理学 2024-10-16 Brahim Ait-Ouazghour , Mohamed Chabab , Khalid Goure

We investigate the feasibility of electroweak baryogenesis in a two-Higgs doublet model with lepton flavor violation. By scrutinizing the heavy Higgs boson mass spectrum, regions satisfying both strong first-order electroweak phase…

高能物理 - 唯象学 · 物理学 2016-10-05 Cheng-Wei Chiang , Kaori Fuyuto , Eibun Senaha

Present measurements of b->c tau nu and b->u tau nu transitions differ from the standard model predictions of lepton flavor universality by almost 4sigma. We examine new physics interpretations of this anomaly. An effective field theory…

高能物理 - 唯象学 · 物理学 2013-01-04 Svjetlana Fajfer , Jernej F. Kamenik , Ivan Nisandzic , Jure Zupan

A direct search for lepton-flavour-violating (LFV) $H\to\mu\tau$ decays of the recently discovered Higgs boson with the ATLAS detector at the LHC is presented. The analysis is performed in the $H\to\mu\tau_{\mathrm{had}}$ channel, where…

高能物理 - 实验 · 物理学 2016-12-08 ATLAS Collaboration

A search is presented for lepton-flavor violating decays of the Higgs boson to $\mu\tau$ and e$\tau$. The data set corresponds to an integrated luminosity of 137 fb$^{-1}$ collected at the LHC in proton-proton collisions at a center-of-mass…

高能物理 - 实验 · 物理学 2021-09-08 CMS Collaboration

A search for the standard model Higgs boson decaying to a W-boson pair at the LHC is reported. The event sample corresponds to an integrated luminosity of 4.9 and 19.4 inverse femtobarns collected with the CMS detector in pp collisions at…

高能物理 - 实验 · 物理学 2014-03-11 CMS Collaboration

Within the Two Higgs Doublet Model (2HDM) with $\mathcal{CP}$ conservation and a softly broken $Z_2$ symmetry, we analyze the flavor changing Higgs decays $h\to bs$ ($bs$ refers jointly to the two decay channels $b\bar s$ and $\bar b s$),…

高能物理 - 唯象学 · 物理学 2023-12-06 F. Arco , S. Heinemeyer , M. J. Herrero

Recently, ATLAS and CMS experiments at the LHC put on light the relevant results in the measurement precision of the Higgs and BSM. In such a report, where the resonance direct search was made in the $\gamma Z$ channel, a mass adjustment…

高能物理 - 唯象学 · 物理学 2023-06-29 R. Benbrik , M. Boukidi , M. Ouchemhou , L. Rahili , O. Tibssirte

In a general two Higgs doublet model (2HDM), the anomaly of muon anomalous magnetic moment (muon g-2) can be explained by $\mu-\tau$ flavor violating Yukawa couplings, motivated by the recent CMS excess in Higgs boson decay $h\rightarrow…

高能物理 - 唯象学 · 物理学 2016-11-23 Kazuhiro Tobe

In this study, we investigate the lepton flavor violation (LFV) of Z gauge boson decaying into two different flavor charged leptons $Z\rightarrow l_i l_j$ ($Z\rightarrow \tau \mu$, $Z\rightarrow \tau e$ and $Z\rightarrow \mu e$). This work…

高能物理 - 唯象学 · 物理学 2026-03-30 Vael Hajahmad , Murhaf Alsayed Ali

Recently the ATLAS and CMS collaborations announced the discovery of a higgs particle with a mass of $\sim 125$ GeV. The results are mildly consistent with the Standard Model Higgs boson. However, the combined data from these collaborations…

高能物理 - 唯象学 · 物理学 2015-06-16 W. Caetano , C. A. de S. Pires , P. S. Rodrigues da Silva , D. Cogollo , Farinaldo S. Queiroz

We discuss lepton flavor violation (LFV) associated with tau leptons in the framework of the two-Higgs-doublet model. Current data for rare tau decays provide substantial upper limits on the LFV Yukawa couplings in the large $\tan\beta$…

高能物理 - 唯象学 · 物理学 2007-05-23 Koji Tsumura