Top Partner Production at <mml:math xmlns:mml="http://www.w3.org/1998/Math/MathML" id="M1"><mml:msup><mml:mrow><mml:mi>e</mml:mi></mml:mrow><mml:mrow><mml:mo>+</mml:mo></mml:mrow></mml:msup><mml:msup><mml:mrow><mml:mi>e</mml:mi></mml:mrow><mml:mrow><mml:mo>-</mml:mo></mml:mrow></mml:msup></mml:math> Collider in the Littlest Higgs Model with <mml:math xmlns:mml="http://www.w3.org/1998/Math/MathML" id="M2"><mml:mrow><mml:mi>T</mml:mi></mml:mrow></mml:math>-Parity

Wang, Haiyan; Yang, Bingfang

doi:10.1155/2017/5463128

Cited by 3 publications

(2 citation statements)

References 78 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…For the earlier discussions on Higgs triplet model at a linear collider, see [40][41][42][43]. For the other SM and BSM searches at CLIC and other linear colliders, see [38,[44][45][46][47][48][49][50][51][52][53][54][55][56][57][58] for Higgs physics and effective field theory, [59][60][61][62][63] for different BSM scenarios, and [64][65][66][67][68][69][70] for seesaw and radiative neutrino mass model searches. For the discussion on probing dark-sector at e + e − collider, see [71,72].…”

Section: Introductionmentioning

confidence: 99%

Probing the type-II seesaw mechanism through the production of Higgs bosons at a lepton collider

et al. 2018

View full text Add to dashboard Cite

We investigate the production and decays of doubly-charged Higgs bosons for the Type-II seesaw mechanism at an e þ e − collider with two center of mass energies, ffiffi ffi s p ¼ 380 GeV and 3 TeV, and analyze the fully hadronic final states in detail. Lower mass ranges can be probed during the 380 GeV run of the collider, while high mass ranges, which are beyond the 13 TeV Large Hadron Collider discovery reach, can be probed with ffiffi ffi s p ¼ 3 TeV. For such a heavy Higgs boson, the final decay products are collimated, resulting in fat-jets. We perform a substructure analysis to reduce the background and find that a doublycharged Higgs boson in the mass range 800-1120 GeV can be discovered during the 3 TeV run, with integrated luminosity L ∼ 95 fb −1 of data. For 380 GeV center of mass energy, we find that for the doublycharged Higgs boson in the range 160-172 GeV, a 5σ significance can be achieved with only integrated luminosity L ∼ 24 fb −1. Therefore, a light Higgs boson can be discovered immediately during the run of a future e þ e − collider.

show abstract

Section: Introductionmentioning

confidence: 99%

Probing the type-II seesaw mechanism through the production of Higgs bosons at a lepton collider

et al. 2018

View full text Add to dashboard Cite

show abstract

“…Note, that M N upto 1 TeV can also be probed at ILC, in it's 1 TeV run.We stress that the model signature for a very heavy N is quite distinct than that of M N in the 100 GeV mass range, that we explore in detail. See [80,[82][83][84][85][86][87][88][89][90][91][92][93] for discovery prospect of different BSM scenarios at CLIC. In this work, we study the discovery prospect of a heavy neutrino in the intermediate to very high mass range at e + e − collider.…”

mentioning

confidence: 99%

Fat jet signature of a heavy neutrino at a lepton collider

2019

View full text Add to dashboard Cite

We explore the discovery prospect of a very heavy neutrino at the proposed e + e − collider for two different c.m.energies √ s = 1.4 TeV and 3 TeV. We consider production of heavy neutrino via s and t-channel processes, and its subsequent prompt decays leading to semi-leptonic final states, along with significant missing energy. For our choice of masses, the gauge boson produced from heavy neutrino decay is highly boosted, leading to a fat-jet. We carry out a detail signal and background analysis for e ± + j fat + E T final state using both cut based and multivariate techniques. We show that a heavy neutrino of mass 600 − 2700 GeV and active-sterile mixing |V eN | 2 ∼ 10 −5 can be probed with 5σ significance at e + e − collider after collecting L = 500 fb −1 of data. We find the sensitivity reach at e + e − collider is order of magnitude enhanced as compared to LHC.

show abstract

Phenomenological implications of the new Littlest Higgs model with T-parity

Illana

Pérez-Poyatos

2022

J. High Energ. Phys.

View full text Add to dashboard Cite

We investigate the parameter space of the new Littlest Higgs model with T-parity (NLHT) recently introduced to cure some pathologies of the original LHT. The model requires extra fermion content and additional pseudo-Goldstone bosons. While the heavy top quark sector is similar, there are both T-odd and T-even heavy quarks and leptons with masses proportional to just two sets of Yukawa matrices in flavor space, one more than in the LHT. The new scalars are a singlet and real triplet, T-odd, with masses controlled by gauge and Yukawa couplings, independent of the spontaneous symmetry breaking scale f, and hence potentially light. Imposing that no mass exceeds the cutoff scale, applying current lower bounds on vector-like quarks and assuming a simplified model with mass degenerate heavy fermions compatible with the heavy photon as dark matter constituent, we find that f gets constrained within the interval between 2 and 3 TeV, the common Yukawa coupling of heavy leptons gets fixed and the Yukawa coupling of heavy quarks becomes greatly correlated to the top quark Yukawa couplings. The particle spectrum is then bounded from below and above, with the (lightest) heavy photon at about 0.5 TeV, not far from the heavy leptons, the new scalars below 1 TeV, the usual complex scalar triplet close to the heavy weak bosons at about 1.5 to 2.5 TeV, and the heavy quarks and top quark partners between 2 and 5 TeV. The new scalars decay predominantly to a standard and a T-odd lepton and have a width comparable to that of the Higgs.

show abstract

Top Partner Production at e+e- Collider in the Littlest Higgs Model with T-Parity

Cited by 3 publications

References 78 publications

Probing the type-II seesaw mechanism through the production of Higgs bosons at a lepton collider

Probing the type-II seesaw mechanism through the production of Higgs bosons at a lepton collider

Fat jet signature of a heavy neutrino at a lepton collider

Phenomenological implications of the new Littlest Higgs model with T-parity

Contact Info

Product

Resources

About