Phenomenology of Scalar Leptoquarks at the LHC in Explaining the Radiative Neutrino Mass, Muon $g-2$ and Lepton Flavour Violating Observables

Background/purpose In 1906, there was a dental treatment room established in the department of surgery of Taipei Hospital to introduce modern dental services to Taiwan. It is undoubtedly the earliest hospital dentistry in Taiwan. This study tried to assess the dental manpower and treated dental diseases in Taipei Hospital, and hence to explore the appearance of Taiwan's early hospital dentistry. Materials and methods This study utilized the secondary data analysis to evaluate the dental manpower and treated dental diseases of dental outpatients in the 27th Annual Report of Taipei Hospital (Taisho 12th year or 1923). Results Our results found that there were 3 dentists and one dental technician in the dental department of Taipei Hospital in 1923. These 3 dentists totally treated 3 inpatients and 1759 outpatients with 4511 outpatient visits (1959 for male patients and 2552 for female patients) in that year. Dental caries and retained root were the two most common dental diseases in Japanese and Taiwanese dental outpatients, and followed in a descending order by missing tooth, pulp necrosis, and pulpitis for Japanese outpatients as well as pulpitis, suppurative periodontitis, and acute or chronic periodontitis for Taiwanese outpatients. Conclusion We conclude that the dentistry of Taipei Hospital in 1923 does have a modern form of dentistry with 3 dentists and one dental technician. Its dental patients are mainly Japanese and minorly Taiwanese. Moreover, the treated dental diseases are mainly tooth diseases for Japanese outpatients and both tooth and periodontal diseases for Taiwanese outpatients.

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“…According to our GUT survey, (1, 2) −3 , (1, 2) the singlet leptoquark ( 3, 1) 2 ) from various experiments can be found in a recent work [13].…”

Section: Discussionmentioning

confidence: 99%

“…Current best experimental mass limits for the LQs set by the Large Hadron Collider (LHC) are around 1 TeV [2], depending on which generation and what type. For more recent phenomenological studies of scalar LQs, see for example [11][12][13].…”

Section: Introductionmentioning

confidence: 99%

Dental manpower and treated dental diseases in department of dentistry, Taipei Hospital (the predecessor of National Taiwan University Hospital) in 1923

Cheng

Wang

Ozawa

et al. 2022

Journal of Dental Sciences

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“…Within this wrinkled setup, the viable leptoquark mass range that can account for a signal in BR B + → K + νν is slightly above the current direct search bounds at the LHC (see refs. [122,123]) and could be detected in future searches at the LHC or future hadron [124][125][126][127] or lepton [128][129][130][131][132][133] colliders.…”

Section: Jhep10(2023)069mentioning

confidence: 99%

Wrinkles in the Froggatt-Nielsen mechanism and flavorful new physics

Asadi,

Bhattacharya,

Fraser

et al. 2023

J. High Energ. Phys.

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When the Froggatt-Nielsen mechanism is used to explain the Standard Model flavor hierarchy, new physics couplings are also determined by the horizontal symmetry. However, additional symmetries or dynamics in the UV can sometimes lead to a departure from this naïve scaling for the new physics couplings. We show that an effective way to keep track of these changes is by using the new spurions of the U(3)5 global flavor symmetry, where we parameterize extra suppression or enhancement factors, referred to as wrinkles, using the same power counting parameter as in the original Froggatt-Nielsen model. As a concrete realization, we consider two flavor spurions of the S1 leptoquark, and demonstrate that wrinkles can be used to make an enhanced value of $$ \textrm{BR}\left({B}^{+}\to {K}^{+}\nu \overline{\nu}\right) $$ BR B + → K + ν ν ¯ consistent with other flavor observables. We also present example UV models that realize wrinkles, and comment on choosing consistent charges in ordinary Froggatt-Nielsen models without the typical monotonicity condition.

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“…LQs can play a vital role in explaining the discrepancy in (g − 2) μ [52][53][54][55][56][57][58]. Moreover, in the presence of a scalar LQ, various NP signatures, e.g., the neutrino oscillation, W mass anomaly, lepton flavor violating decays and dark matter can be connected to the (g − 2) e, μ anomalies within a single BSM formulation [29,59,[59][60][61][62][63][64][65][66][67]. LQs can also have important implications to explain the electric dipole moment (EDM) of leptons [68][69][70].…”

Section: Introductionmentioning

confidence: 99%

Revisiting the scalar leptoquark $$(S_1)$$ model with the updated leptonic constraints

2023

Eur. Phys. J. C

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The Standard Model, if extended to the energy scale of $${\mathscr {O}}(1)$$ O ( 1 ) TeV, the known particle spectrum could be augmented with a scalar leptoquark. Within this minimally extended framework, explaining the anomalous magnetic moment and electric dipole moment simultaneously for the three lepton generations over a parameter space consistent with all the lepton flavor violating bounds is possible. Such a model can be tested or falsified through the collider search experiments and/or by probing the low-energy lepton phenomena. This work studies the current prospects of the model in the presence of recent experimental updates for the leptonic observables.

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Phenomenology of Scalar Leptoquarks at the LHC in Explaining the Radiative Neutrino Mass, Muon $g-2$ and Lepton Flavour Violating Observables

Cited by 3 publications

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Dental manpower and treated dental diseases in department of dentistry, Taipei Hospital (the predecessor of National Taiwan University Hospital) in 1923

Dental manpower and treated dental diseases in department of dentistry, Taipei Hospital (the predecessor of National Taiwan University Hospital) in 1923

Wrinkles in the Froggatt-Nielsen mechanism and flavorful new physics

Revisiting the scalar leptoquark $$(S_1)$$ model with the updated leptonic constraints

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