Higgs flavor phenomenology in a supersymmetric left-right model with parity

Iguro, Syuhei; Kawamura, Junichiro; Omura, Yuji; Shigekami, Yoshihiro

doi:10.1007/jhep06(2021)125

Cited by 4 publications

(2 citation statements)

References 100 publications

(92 reference statements)

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“…Such a charged Higgs emerges from the second SU(2) doublet of a generic two Higgs doublet model (G2HDM), along with CP even and odd neutral scalars. In the model under consideration the additional Higgs doublet couples to all fermions, a setup which appears in many UV models, such as the left-right model [48][49][50][51][52][53][54][55][56][57][58] and even in the TeV scale Pati-Salam model to break the symmetry with a bi-doublet field [59,60]. In general such a coupling structure is dangerous since the additional neutral scalars possess flavor violating interactions at tree level.…”

Section: Model and Parametersmentioning

confidence: 99%

Towards ruling out the charged Higgs interpretation of the $R_{D^{(*)}}$ anomaly

Blanke,

Iguro,

Zhang

2022

Preprint

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Motivated by the notorious anomaly in the lepton flavor universality ratios R D ( * ) , we study the sensitivity of the Large Hadron Collider (LHC) to a low-mass charged Higgs boson H − lighter than 400 GeV in a generic two Higgs doublet model. A combination of current constraints from the B c → τν decay, B s meson mixing data, tau sleptons and di-jet searches at the LHC allows to explain the R D ( * ) anomaly at the 1 σ level by a lowmass charged Higgs. In this context, we estimate the reach of an LHC search for resonant H − production, where the final state contains an energetic τ lepton decaying hadronically, a neutrino with large transverse momentum, and an additional b-jet (pp → b + τ h + ν). Requiring the additional b-tagged jet in the τν resonance search profits from the suppression of the Standard Model background, and therefore it allows us to judge the low-mass H − interpretation of the R D ( * ) anomaly. To demonstrate this, we perform a fast collider simulation for the τν resonance search with an additional b-tagged jet, and find that most of the interesting parameter region of the whole mass range can already be probed with the current integrated luminosity of 139 fb −1 .

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Section: Model and Parametersmentioning

confidence: 99%

Towards ruling out the charged Higgs interpretation of the $R_{D^{(*)}}$ anomaly

Blanke,

Iguro,

Zhang

2022

Preprint

Self Cite

View full text Add to dashboard Cite

show abstract

“…A generic two Higgs doublet model (G2HDM) where an additional Higgs doublet with couplings to all fermions is added is one of the simplest extensions of the SM which often appears in a UV theory e.g. a left-right symmetric model [11,12]. In the G2HDM there are 4 additional degrees of freedom, a CP even scalar (H), a CP odd scalar (A) and charged scalars (H ± ).…”

Section: Introductionmentioning

confidence: 99%

Revival of $H^-$ interpretation of $R_{D^{(*)}}$ anomaly and closing low mass window

Iguro

2022

Preprint

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Thanks to the recent careful revisit of the theoretical prediction of the B c meson lifetime, the conservative upper bound on the branching ratio (BR) of τν mode is found to be 63% due to the large charm quark mass uncertainty. Although it is well known that a charged Higgs (H − ) interpretation of the R D ( * ) anomaly is excluded by the previously proposed bounds, BR(B c → τν) ≤ 30% and ≤ 10%, H − can still explain the anomaly within 1σ if we adopt the 63% one. The scalar contribution is also favored by the polarization data F D * L measured at the Belle. Since the implied NP scale is within the reach of the Large Hadron Collider (LHC), collider searches are powerful tools to test the scenario. For instance, the τν resonance search has already put the more stringent bound for m H − ≥ 400 GeV. In this work we revisit the further lighter mass range, 180 GeV≤ m H − ≤ 400 GeV which has not been covered yet. We will see that a combination of the conventional stau search and low mass flavor inclusive and bottom flavored di-jet resonance searches can place a new limit on the interpretation. We summarize the current status of the low mass region and discuss the future sensitivity in the high luminosity (HL)-LHC based on the existent collider constraints.

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Towards ruling out the charged Higgs interpretation of the $$ {R}_{D^{\left(\ast \right)}} $$ anomaly

Blanke

Iguro

Zhang

2022

J. High Energ. Phys.

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Motivated by the notorious anomaly in the lepton flavor universality ratios $$ {R}_{D^{\left(\ast \right)}} $$ R D ∗ , we study the sensitivity of the Large Hadron Collider (LHC) to a low-mass charged Higgs boson H− lighter than 400 GeV in a generic two Higgs doublet model. A combination of current constraints from the Bc→ τν decay, Bs meson mixing data, tau sleptons and di-jet searches at the LHC allows to explain the $$ {R}_{D^{\left(\ast \right)}} $$ R D ∗ anomaly at the 1σ level by a low-mass charged Higgs. In this context, we estimate the reach of an LHC search for resonant H− production, where the final state contains an energetic τ lepton decaying hadronically, a neutrino with large transverse momentum, and an additional b-jet (pp → b + τh + ν). Requiring the additional b-tagged jet in the τν resonance search profits from the suppression of the Standard Model background, and therefore it allows us to judge the low-mass H− interpretation of the $$ {R}_{D^{\left(\ast \right)}} $$ R D ∗ anomaly. To demonstrate this, we perform a fast collider simulation for the τν resonance search with an additional b-tagged jet, and find that most of the interesting parameter region of the whole mass range can already be probed with the current integrated luminosity of 139 fb−1.

show abstract

Higgs flavor phenomenology in a supersymmetric left-right model with parity

Cited by 4 publications

References 100 publications

Towards ruling out the charged Higgs interpretation of the $R_{D^{(*)}}$ anomaly

Towards ruling out the charged Higgs interpretation of the $R_{D^{(*)}}$ anomaly

Revival of $H^-$ interpretation of $R_{D^{(*)}}$ anomaly and closing low mass window

Towards ruling out the charged Higgs interpretation of the $$ {R}_{D^{\left(\ast \right)}} $$ anomaly

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