Heavy Higgs bosons at low tan β: from the LHC to 100 TeV

Craig, Nathaniel; Hajer, Jan; Li, Yingying; Liu, Tao; Zhang, Hao

doi:10.1007/jhep01(2017)018

Cited by 55 publications

(53 citation statements)

References 64 publications

(123 reference statements)

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“…Twin SUSY models then provide an additional motivation to extend the search program for extra MSSM-like Higgses in the small tan β regime both at the LHC and at future colliders [43,[58][59][60]. It would be interesting to investigate in detail alternative final states to probe CP-odd and CP-even MSSM-like scalars, such as the ones suggested in refs.…”

Section: Discussionmentioning

confidence: 99%

SUSY meets her twin

Katz

Mariotti

Pokorski

et al. 2017

J. High Energ. Phys.

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We investigate the general structure of mirror symmetry breaking in the Twin Higgs scenario. We show, using the IR effective theory, that a significant gain in fine tuning can be achieved if the symmetry is broken hardly. We emphasize that weakly coupled UV completions can naturally accommodate this scenario. We analyze SUSY UV completions and present a simple Twin SUSY model with a tuning of around 10% and colored superpartners as heavy as 2 TeV. The collider signatures of general Twin SUSY models are discussed with a focus on the extended Higgs sectors.

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Section: Discussionmentioning

confidence: 99%

SUSY meets her twin

Katz

Mariotti

Pokorski

et al. 2017

J. High Energ. Phys.

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“…The strongest constraints for the large tan β region come from the A/H → τ + τ − searches: m A/H could be excluded to about 1000 GeV for tan β ∼ 10, and even larger masses for larger tan β. H ± → tb offers better exclusion at low tan β, which excludes m H ± to about 600 GeV for tan β ∼ 1. Possible A/H → tt mode might help to extend the exclusion reach to about 2000 GeV for tan β ∼ 1 [73,76]. At 100 TeV pp collider with 3 ab −1 luminosity, A/H → τ + τ − could extend the reach at large tan β to about 2000 GeV at tan β ∼ 10 and about 3 TeV for tan β ∼ 50.…”

Section: • Vacuum Stabilitymentioning

confidence: 95%

Type-II 2HDM under the precision measurements at the Z-pole and a Higgs factory

Chen

Han

et al. 2019

J. High Energ. Phys.

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Future precision measurements of the Standard Model (SM) parameters at the proposed Z-factories and Higgs factories may have significant impacts on new physics beyond the Standard Model in the electroweak sector. We illustrate this by focusing on the Type-II two Higgs doublet model (Type-II 2HDM). The contributions from the heavy Higgs bosons at the tree-level and at the one-loop level are included in a full model parameter space. We perform a multiple variable global fit and study the extent to which the parameters of nonalignment and non-degenerate masses can be probed by the precision measurements. We find that the allowed parameter ranges are tightly constrained by the future Higgs precision measurements, especially for small and large values of tan β. Indirect limits on the masses of heavy Higgs can be obtained, which can be complementary to the direct searches of the heavy Higgs bosons at hadron colliders. We also find that the expected accuracies at the Z-pole and at a Higgs factory are quite complementary in constraining mass splittings of heavy Higgs bosons. The typical results are | cos(β − α)| < 0.008, |∆m Φ | < 200 GeV, and tan β ∼ 0.2 − 5. The reaches from CEPC, FCC-ee and ILC are also compared, for both Higgs and Z-pole precision measurements.

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“…The energy of electrons is determined from a combination of the elec- in the context of the Type II 2HDM of Ref. [23]. The mass of the new particle is varied in the range [350, 550] GeV, where the lower mass boundary is chosen in such a way as to allow the decay of the (pseudo)scalar into on-shell top quarks.…”

Section: The Cms Detector and Event Reconstructionmentioning

confidence: 99%

Search for physics beyond the standard model in events with two leptons of same sign, missing transverse momentum, and jets in proton–proton collisions at $$\sqrt{s} = 13\,\text {TeV} $$

Sirunyan¹,

Tumasyan²,

Adam³

et al. 2017

Eur. Phys. J. C

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A data sample of events from proton-proton collisions with two isolated same-sign leptons, missing transverse momentum, and jets is studied in a search for signatures of new physics phenomena by the CMS Collaboration at the LHC. The data correspond to an integrated luminosity of 35.9 fb −1 , and a center-of-mass energy of 13 TeV. The properties of the events are consistent with expectations from standard model processes, and no excess yield is observed. Exclusion limits at 95% confidence level are set on cross sections for the pair production of gluinos, squarks, and same-sign top quarks, as well as top-quark associated production of a heavy scalar or pseudoscalar boson decaying to top quarks, and on the standard model production of events with four top quarks. The observed lower mass limits are as high as 1500 GeV for gluinos, 830 GeV for bottom squarks. The excluded mass range for heavy (pseudo)scalar bosons is 350-360 (350-410) GeV. Additionally, model-independent limits in several topological regions are provided, allowing for further interpretations of the results. IntroductionFinal states with two leptons of same charge, denoted as same-sign (SS) dileptons, are produced rarely by standard model (SM) processes in proton-proton (pp) collisions. Because the SM rates of SS dileptons are low, studies of these final states provide excellent opportunities to search for manifestations of physics beyond the standard model (BSM). Over the last decades, a large number of new physics mechanisms have been proposed to extend the SM and address its shortcomings. Many of these can give rise to potentially large contributions to the SS dilepton signature, e.g., the production of supersymmetric (SUSY) particles [1,2], SS top quarks [3,4], scalar gluons (sgluons) [5,6], heavy scalar * e-mail: cms-publication-committee-chair@cern.ch bosons of extended Higgs sectors [7,8], Majorana neutrinos [9], and vector-like quarks [10].In the SUSY framework [11][12][13][14][15][16][17][18][19][20], the SS final state can appear in R-parity conserving models through gluino or squark pair production when the decay of each of the pairproduced particles yields one or more W bosons. For example, a pair of gluinos (which are Majorana particles) can give rise to SS charginos and up to four top quarks, yielding signatures with up to four W bosons, as well as jets, b quark jets, and large missing transverse momentum (E miss T ). Similar signatures can also result from the pair production of bottom squarks, subsequently decaying to charginos and top quarks.While R-parity conserving SUSY models often lead to signatures with large E miss T , it is also interesting to study final states without significant E miss T beyond what is produced by the neutrinos from leptonic W boson decays. For example, some SM and BSM scenarios can lead to the production of SS or multiple top quark pairs, such as the associated production of a heavy (pseudo)scalar, which subsequently decays to a pair of top quarks. This scenario is realized in Type II two Higgs d...

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Heavy Higgs bosons at low tan β: from the LHC to 100 TeV

Cited by 55 publications

References 64 publications

SUSY meets her twin

SUSY meets her twin

Type-II 2HDM under the precision measurements at the Z-pole and a Higgs factory

Search for physics beyond the standard model in events with two leptons of same sign, missing transverse momentum, and jets in proton–proton collisions at $$\sqrt{s} = 13\,\text {TeV} $$

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