Results 91 to 100 of about 9,941 (223)

The Purely Leptonic and Semileptonic Decays of Ds∗ Meson

open access: yesAdvances in High Energy Physics, Volume 2026, Issue 1, 2026.
With the potential prospects of the Ds∗ at high‐luminosity heavy‐flavor experiments in the future, we investigated the CKM‐favored and tree‐dominated leptonic Ds∗⟶ℓν¯ℓ,ℓ=e,μ,τ and semileptonic Ds∗⟶Mℓ′ν¯ℓ′ M=ϕ,η′,K and ℓ′=e,μ weak decays in the standard model (SM).
Xiao-Lin Wang   +3 more
wiley   +1 more source

Pseudoscalar transition form factors: (

open access: yes, 2016
We present our model-independent and data-driven method to describe pseudoscalar meson transition form factors in the space- and (low-energy) time-like regions.
Pablo Sanchez-Puertas, Pere Masjuan
core   +1 more source

One-loop pseudoscalar mass in a 2HDM with a Z 3 symmetry

open access: yesJournal of High Energy Physics
A two-Higgs doublet model with a discrete Z 3 symmetry acquires, in its scalar and gauge sectors, an accidental continuous U(1) symmetry. One therefore finds, after spontaneous symmetry breaking of those symmetries, that a massless pseudoscalar arises ...
P. M. Ferreira, Tomás F. Pinto
doaj   +1 more source

Combined search for anomalous pseudoscalar HVV couplings in VH(H→bb‾) production and H→VV decay

open access: yesPhysics Letters B, 2016
A search for anomalous pseudoscalar couplings of the Higgs boson H to electroweak vector bosons V (=W or Z) in a sample of proton–proton collision events corresponding to an integrated luminosity of 18.9 fb−1 at a center-of-mass energy of 8 TeV is ...
V. Khachatryan   +2 more
doaj   +1 more source

A Renormalizable Neutrino Mass Model With (Z2 × Z4)⋊Z2(II) Symmetry

open access: yesAdvances in High Energy Physics, Volume 2026, Issue 1, 2026.
In this work, a renormalizable neutrino mass model based on (Z2 × Z4)⋊Z2 (II) symmetry is proposed for the modification of the μ − τ reflection symmetry. The hierarchies of lepton masses can be naturally realized, and the lepton mixing is addressed.
V. V. Vien   +3 more
wiley   +1 more source

Search for vector-like leptons with long-lived particle decays in the CMS muon system in proton-proton collisions at $$\sqrt{\text{s}}$$ = 13 TeV

open access: yesJournal of High Energy Physics
A first search is presented for vector-like leptons (VLLs) exclusively decaying into a light long-lived pseudoscalar boson and a standard model τ lepton.
The CMS collaboration   +2384 more
doaj   +1 more source

Approximate Mass Spectra of the Heavy Mesons Under a Coulomb Plus Logarithmic Spin‐Dependent Potential Function

open access: yesAdvances in High Energy Physics, Volume 2026, Issue 1, 2026.
In this paper, we presented an approximate analytical treatment of the Coulomb plus logarithmic potential using time‐independent perturbation theory to investigate the mass spectra of bottomonium and charmonium mesons for the low‐order quantum states.
E. Omugbe   +4 more
wiley   +1 more source

Two-Point Correlators of Fermionic Currents in External Magnetic Field

open access: yesEPJ Web of Conferences, 2017
We study the two-point correlation functions under an influence of the constant homogeneous magnetic field. In addition to the correlators of scalar, pseudoscalar, vector and axial-vector fermionic currents, we calculate the non-diagonal one including ...
Dobrynina Alexandra   +3 more
doaj   +1 more source

Search for an exotic decay of the Higgs boson to a pair of light pseudoscalars in the final state with two b quarks and two τ leptons in proton–proton collisions at s=13TeV

open access: yesPhysics Letters B, 2018
A search for an exotic decay of the Higgs boson to a pair of light pseudoscalar bosons is performed for the first time in the final state with two b quarks and two τ leptons. The search is motivated in the context of models of physics beyond the standard
A.M. Sirunyan   +2300 more
doaj   +1 more source

Probing the decay A0⟶h0Z(∗) in Two‐Higgs‐Doublet Models in the Inverted Hierarchy Scenario at the Large Hadron Collider

open access: yesAdvances in High Energy Physics, Volume 2026, Issue 1, 2026.
Searches are being carried out at the Large Hadron Collider (LHC) for the decay of the CP‐odd scalar (A0) in two‐Higgs‐doublet models (2HDMs) with natural flavour conservation (NFC) in the channel A0⟶h0Z, where h0 is either the discovered 125 GeV Higgs boson or is an undiscovered CP‐even scalar with a mass below 125 GeV.
A. G. Akeroyd   +3 more
wiley   +1 more source

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