Null result from dimuon scouting search at 13.6 TeV sets 95% CL limits on long-lived particle production in Higgs and b-hadron decay channels across multiple BSM models.
Search for dark photons produced in 13 TeV $pp$ collisions
6 Pith papers cite this work. Polarity classification is still indexing.
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abstract
Searches are performed for both prompt-like and long-lived dark photons, $A^{\prime}$, produced in proton-proton collisions at a center-of-mass energy of 13 TeV, using $A^{\prime}\to\mu^+\mu^-$ decays and a data sample corresponding to an integrated luminosity of 1.6 fb$^{-1}$ collected with the LHCb detector. The prompt-like $A^{\prime}$ search covers the mass range from near the dimuon threshold up to 70 GeV, while the long-lived $A^{\prime}$ search is restricted to the low-mass region $214<m(A^{\prime})<350$ MeV. No evidence for a signal is found, and 90% confidence level exclusion limits are placed on the $\gamma$-$A^{\prime}$ kinetic-mixing strength. The constraints placed on prompt-like dark photons are the most stringent to date for the mass range $10.6 < m(A^{\prime}) < 70$ GeV, and are comparable to the best existing limits for $m(A^{\prime}) < 0.5$ GeV. The search for long-lived dark photons is the first to achieve sensitivity using a displaced-vertex signature.
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representative citing papers
The thesis presents a new 3-to-2 freezeout mechanism, bound-state effects on searches, a new axion interferometric search, reionization assessments, 21-cm constraints, and the DarkHistory code for ionization and thermal histories.
LDMX can close much of the sub-100 MeV blind spot for axions and dark photons via charged track and momentum reconstruction.
Narrow spin-zero bosons with chirality-violating couplings can produce large di-tau non-universality in the bottomonium mass region at the LHC while preserving universality at e+e- colliders.
The paper surveys theoretical motivations, experimental searches, and bounds on the dark photon as a kinetically mixed gauge boson from a dark sector, covering both massive and massless cases along with related milli-charged fermion constraints.
citing papers explorer
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Search for long-lived particles decaying into muons in proton-proton collisions at $\sqrt{s}$ = 13.6 TeV using data scouting
Null result from dimuon scouting search at 13.6 TeV sets 95% CL limits on long-lived particle production in Higgs and b-hadron decay channels across multiple BSM models.
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Cornering MeV-GeV Axions and Dark Photons with LDMX
LDMX can close much of the sub-100 MeV blind spot for axions and dark photons via charged track and momentum reconstruction.
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Signals of New Resonances from Di-Lepton Non-Universality in the Bottomonium Mass Region at the Large Hadron Collider
Narrow spin-zero bosons with chirality-violating couplings can produce large di-tau non-universality in the bottomonium mass region at the LHC while preserving universality at e+e- colliders.
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