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Results for “particle decays”
Search indexed NASA NTRS and DOE OSTI research on propulsion, heat transfer, battery materials and energy systems. Follow report and document links to the original sources.
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Searching for exotic production of Higgs boson + X to map out new physics
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Inelastic dark matter at the Fermilab Short Baseline Neutrino Program
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Measurement of B ( B s → D s X ) with B s semileptonic tagging
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First dark matter search results from Coherent CAPTAIN-Mills
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Solving combinatorial problems at particle colliders using machine learning
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Density of GeV muons in air showers measured with IceTop
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Measurement of the mass and width of the Λ c (2625) + charmed baryon and the branching ratios of Λ c (2625) + → Σ$^{0}_{c}$π + and Λ c (2625) + → Σ$^{++}_{c}$π -
Using the entire data sample of 980 fb -1 collected at or near the Y(4S) resonance with the Belle detector operating at the KEKB asymmetric-energy e + e - collider, we report the measurement of the mass, width, and the branching ratios of the Λ c (2625) + charmed baryon. The mass difference between Λ c (2625) + and Λ$^{+}_{c}$ is measured to be M(Λ c (2625) + )-M(Λ$^{+}_{c}$)=341.518±0.006±0.049 MeV/c 2 . The upper limit on the width is measured to be Γ(Λ c (2625) + )<0.52 MeV/c 2 at 90% confidence level. Based on a full Dalitz plot fit, branching ratios with respect to the mode Λ c (2625) + →Λ$^{+}_{c}$π + π - are measured to be $\frac{\mathscr{B}(Λ_c(2625)^+ → Σ^{0}_{c}π^+)} {\mathscr{B}(Λ_c(2625)^+ → ^{+}_{c}π^+π^-)}$ = (5.19±0.23±0.40)% and $\frac{\mathscr{B}(Λ_c (2625)^+ → Σ{_c^+}^+ π^-)}{\mathscr{B}(Λ_c (2625)^+ → Λ{_c^+} π^+π^-)}$ = (5.13±0.26±0.32)%, where the first and second uncertainties are statistical and systematic, respectively. These measurements can be used to further constrain the parameters of the underlying theoretical models.
Averages of b -hadron, c -hadron, and τ -lepton properties as of 2021
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Prospects for detecting axionlike particles at the Coherent CAPTAIN-Mills experiment
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Effective field theory of chirally enhanced muon mass and dipole operators
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Search for dark matter lines at the Galactic Center with 14 years of Fermi data
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Cross-section measurements of e + e − → ϕ K + K − and e + e − → ϕ K S 0 K S 0 at center-of-mass energies between 3.7730 GeV and 4.7008 GeV
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Comparing models for a unitary black hole S matrix
This paper compares features, challenges, and puzzles of different models for a unitary black hole S -matrix, focusing on both recent nonisometric models, as well as “nonviolent unitarization,” which is based on new quantum interactions of a black hole. As a foundation for comparison, the description of real-time Hawking evolution is first overviewed, including leading effects of gravitational dressing and backreaction. Connection is then made to qubit models for evolution, and some technology is outlined to facilitate their description. Important features of both nonisometric models and nonviolent unitarization are investigated in qubit models, which illustrate essential differences between the respective approaches. The nonisometric models present puzzles for understanding evolution of internal outgoing excitations, which can be excited by interactions such as particle decay. Qubit models for nonviolent unitarization are further developed, and nicely illustrate aspects of that approach. Some remaining questions in generalizing to more complete models for evolution are discussed. Published by the American Physical Society 2024
Probing Muonphilic Force Carriers and Dark Matter at Kaon Factories
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C P Properties of Higgs Boson Interactions with Top Quarks in the t t ¯ H and t H Processes Using H → γ γ with the ATLAS Detector
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