The Discriminant Power of Bubble Wall Velocities: Gravitational Waves and Electroweak Baryogenesis
Kavli Affiliate: Marcela Carena | First 5 Authors: Marcela Carena, Aurora Ireland, Tong Ou, Isaac R. Wang, | Summary: A precise determination of the bubble wall velocity $v_w$ is crucial for making accurate predictions of the baryon asymmetry and gravitational wave (GW) signals in models of electroweak baryogenesis (EWBG). Working in the local thermal equilibrium […]
Continue.. The Discriminant Power of Bubble Wall Velocities: Gravitational Waves and Electroweak Baryogenesis
Operational experience and performance of the Silicon Vertex Detector after the first long shutdown of Belle II
Kavli Affiliate: T. Higuchi | First 5 Authors: K. Ravindran, K. Adamczyk, H. Aihara, S. Bacher, S. Bahinipati | Summary: In 2024, the Belle II experiment resumed data taking after the Long Shutdown 1, which was required to install a two-layer pixel detector and upgrade accelerator components. We describe the challenges of this shutdown and […]
Continue.. Operational experience and performance of the Silicon Vertex Detector after the first long shutdown of Belle II
Phases of Dark Matter from Inverse Decays
Kavli Affiliate: Hitoshi Murayama | First 5 Authors: Ronny Frumkin, Yonit Hochberg, Eric Kuflik, Hitoshi Murayama, | Summary: Inverse decays are an interesting avenue for producing dark matter in the early universe. We study in detail various phases of dark matter parameter space where inverse decays control its abundance, expanding on our work of INDY […]
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Thermal Emission and Confirmation of the Frigid White Dwarf Exoplanet WD 1856+534b
Kavli Affiliate: Andrew Vanderburg | First 5 Authors: Mary Anne Limbach, Andrew Vanderburg, Ryan J. MacDonald, Kevin B. Stevenson, Sydney Jenkins | Summary: We report the detection of thermal emission from and confirm the planetary nature of WD 1856+534b, the first transiting planet known to orbit a white dwarf star. Observations with JWST’s Mid-Infrared Instrument […]
Continue.. Thermal Emission and Confirmation of the Frigid White Dwarf Exoplanet WD 1856+534b
CHIME All-sky Multiday Pulsar Stacking Search (CHAMPSS): System Overview and First Discoveries
MOSAIC: Magnonic Observations of Spin-dependent Axion-like InteraCtions
Kavli Affiliate: Clarence Chang | First 5 Authors: Clarence Chang, T. J. Hobbs, Dafei Jin, Yi Li, Marharyta Lisovenko | Summary: We introduce an array-scalable, magnon-based detector (MOSAIC) to search for the spin-dependent interactions of electron-coupled axion dark matter. These axions can excite single magnons in magnetic targets, such as the yttrium iron garnet (YIG) […]
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Tracing the imprints of large-scale magnetized structure on $γ$ rays from GRB 221009A
Kavli Affiliate: Nicola Omodei | First 5 Authors: Saikat Das, Soebur Razzaque, Nestor Mirabal, Nicola Omodei, Kohta Murase | Summary: We search for possible GeV-TeV gamma-ray imprints of ultrahigh-energy (UHE; $gtrsim 0.1$ EeV) cosmic ray (CR) acceleration in the large-scale structures surrounding the brightest gamma-ray burst (GRB) explosion, GRB 221009A. Using 1.25 years of post-event […]
Continue.. Tracing the imprints of large-scale magnetized structure on $γ$ rays from GRB 221009A
Measurement of the time-integrated $CP$ asymmetry in $D^0 to K^0_{rm S} K^0_{rm S}$ decays using opposite-side flavor tagging at Belle and Belle II
Kavli Affiliate: T. Higuchi | First 5 Authors: Belle, Belle II Collaborations, :, I. Adachi, Y. Ahn | Summary: We measure the time-integrated $CP$ asymmetry in $D^0 to K^0_{rm S} K^0_{rm S}$ decays reconstructed in $e^+e^-to c{overline c}$ events collected by the Belle and Belle II experiments. The corresponding data samples have integrated luminosities of […]
Continue.. Measurement of the time-integrated $CP$ asymmetry in $D^0 to K^0_{rm S} K^0_{rm S}$ decays using opposite-side flavor tagging at Belle and Belle II
Search for lepton-flavor-violating $τ^- to ell^- K_s^0$ decays at Belle and Belle II
Kavli Affiliate: T. Higuchi | First 5 Authors: Belle, Belle II Collaborations, :, I. Adachi, L. Aggarwal | Summary: We present the results of a search for charged-lepton-flavor violating decays $tau^{-} rightarrow ell^{-}K_{S}^{0}$, where $ell^{-}$ is either an electron or a muon. We combine $e^+e^-$ data samples recorded by the Belle II experiment at the […]
Continue.. Search for lepton-flavor-violating $τ^- to ell^- K_s^0$ decays at Belle and Belle II