Search for high-mass dilepton resonances in<mml:math xmlns:mml="http://www.w3.org/1998/Math/MathML" display="inline"><mml:mi>p</mml:mi><mml:mi>p</mml:mi></mml:math>collisions at<mml:math xmlns:mml="http://www.w3.org/1998/Math/MathML" display="inline"><mml:mrow><mml:msqrt><mml:mrow><mml:mi>s</mml:mi></mml:mrow></mml:msqrt><mml:mo>=</mml:mo><mml:mn>8</mml:mn><mml:mtext> </mml:mtext><mml:mtext> </mml:mtext><mml:mi>TeV</mml:mi></mml:mrow></mml:math>with the ATLAS detector

We review how the muon anomalous magnetic moment (g − 2) and the quest for lepton flavor violation are intimately correlated. Indeed the decay µ → eγ is induced by the same amplitude for different choices of in-and outgoing leptons. In this work, we try to address some intriguing questions such as:Which hierarchy in the charged lepton sector one should have in order to reconcile possible signals coming simultaneously from g − 2 and lepton flavor violation?What can we learn if the g − 2 anomaly is confirmed by the upcoming flagship experiments at FERMILAB and J-PARC, and no signal is seen in the decay µ → eγ in the foreseeable future? On the other hand, if the µ → eγ decay is seen in the upcoming years, do we need to necessarily observe a signal also in g − 2?.In this attempt, we generally study the correlation between these observables in a detailed analysis of simplified models. We derive master integrals and

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“…All these bounds can be found in [233,[305][306][307][308][309][310][311][312][313][314][315][316][317][318]. Projected limits using the Large…”

Section: Results In the Left-right Modelmentioning

confidence: 99%

A call for new physics: The muon anomalous magnetic moment and lepton flavor violation

2018

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“…Since M int 3 TeV, this model predicts a new massive neutral gauge boson, Z , and vector leptoquarks whose masses are around a few TeV. These particles can be probed in future LHC experiments; for instance, dilepton resonance searches [120,121] are powerful probes for such a Z . The leptoquarks are pair produced at the LHC, and their signature is observed in dijet plus dilepton channels [122][123][124].…”

Section: Jhep10(2015)193mentioning

confidence: 99%

Weakly-interacting massive particles in non-supersymmetric SO(10) grand unified models

Nagata

Olive

Zheng

2015

J. High Energ. Phys.

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Non-supersymmetric SO(10) grand unified theories provide a framework in which the stability of dark matter is explained while gauge coupling unification is realized. In this work, we systematically study this possibility by classifying weakly interacting dark matter candidates in terms of their quantum numbers of SU(2) L ⊗ U(1) Y , B − L, and SU(2) R . We consider both scalar and fermion candidates. We show that the requirement of a sufficiently high unification scale to ensure a proton lifetime compatible with experimental constraints plays a strong role in selecting viable candidates. Among the scalar candidates originating from either a 16 or 144 of SO(10), only SU(2) L singlets with zero hypercharge or doublets with Y = 1/2 satisfy all constraints for SU(4) C ⊗ SU(2) L ⊗ SU(2) R and SU(3) C ⊗ SU(2) L ⊗ SU(2) R ⊗ U(1) B−L intermediate scale gauge groups. Among fermion triplets with zero hypercharge, only a triplet in the 45 with intermediate group SU(4) C ⊗ SU(2) L ⊗ SU(2) R leads to solutions with M GUT > M int and a long proton lifetime. We find three models with weak doublets and Y = 1/2 as dark matter candidates for the SU(4) C ⊗ SU(2) L ⊗ SU(2) R and SU(4) C ⊗ SU(2) L ⊗ U(1) R intermediate scale gauge groups assuming a minimal Higgs content. We also discuss how these models may be tested at accelerators and in dark matter detection experiments.

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“…• Decaying into di-lepton via LLE c operator, which is severely limited by LHC di-lepton resonance searches [47]. This decay mode can not be forbidden kinematically due to the lightness of leptons.…”

Section: Arxiv:151206560v2 [Hep-ph] 20 May 2016mentioning

confidence: 99%

Interpreting 750 GeV diphoton excess with R-parity violating supersymmetry

Ding

Huang

et al. 2017

Int. J. Mod. Phys. A

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We propose an supersymmetric explanation of the diphoton excess in the Minimal Supersymmetric Standard Model with the leptonic R-parity violation. Where the sneutrino serves as the 750 GeV resonance and produced through quark anti-quark annihilation. With introducing appropriate trilinear soft parameters, we show that the diphoton branching ratio is significantly enhanced compared with the conventional MSSM. The parameter space favored by diphoton excess strongly indicates the mass of smuon and stau fall into the range 375 − 410 (375-480) GeV, which depending on the electroweakino masses. In addition, the R-parity-violating trilinear couplings involved with second generation quarks are both favored by compatibility of diphoton excess and low-energy constraints.

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Search for high-mass dilepton resonances inppcollisions ats=8 TeVwith the ATLAS detector

Cited by 272 publications

References 108 publications

A call for new physics: The muon anomalous magnetic moment and lepton flavor violation

A call for new physics: The muon anomalous magnetic moment and lepton flavor violation

Weakly-interacting massive particles in non-supersymmetric SO(10) grand unified models

Interpreting 750 GeV diphoton excess with R-parity violating supersymmetry

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