Astrophysics – Page 44 – Kavli Institute Pre-Print Publications

Measurement of the time-integrated CP asymmetry in $D^{0}rightarrow K^{0}_{S}K^{0}_{S}$ decays using Belle and Belle II data

Posted by dbos November 1, 2024Tokyo

Kavli Affiliate: T. Higuchi | First 5 Authors: Belle, Belle II Collaborations, :, I. Adachi, L. Aggarwal | Summary: We measure the time-integrated CP asymmetry in $D^{0} rightarrow K^{0}_{S}K^{0}_{S}$ decays reconstructed in $e^{+}e^{-} rightarrow coverline{c}$ events collected by the Belle and Belle II experiments. The corresponding data samples have integrated luminosities of 980 fb$^{-1}$ and […]

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Alive and Strongly Kicking: Stable X-ray Quasi-Periodic Eruptions from eRO-QPE2 over 3.5 Years

Posted by dbos November 1, 2024MIT

Kavli Affiliate: Dheeraj Pasham | First 5 Authors: Dheeraj Pasham, Shubham Kejriwal, Eric Coughlin, Vojtěch Witzany, Alvin J. K. Chua | Summary: Quasi-periodic eruptions (QPEs) are recurring bursts of soft X-rays from the nuclei of galaxies. Their physical origin is currently a subject of debate, with models typically invoking an orbiter around a massive black […]

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Machine Learning Electroweakino Production

Posted by dbos October 31, 2024Tokyo

Kavli Affiliate: Mihoko M. Nojiri | First 5 Authors: Rafał Masełek, Mihoko M. Nojiri, Kazuki Sakurai, , | Summary: The system of light electroweakinos and heavy squarks gives rise to one of the most challenging signatures to detect at the LHC. It consists of missing transverse energy recoiled against a few hadronic jets originating either […]

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Redefining in Dictionary: Towards a Enhanced Semantic Understanding of Creative Generation

Posted by dbos October 31, 2024Peking

Kavli Affiliate: Jing Wang | First 5 Authors: Fu Feng, Yucheng Xie, Jing Wang, Xin Geng, | Summary: Creativity, both in human and diffusion models, remains an inherently abstract concept; thus, simply adding "creative" to a prompt does not yield reliable semantic recognition by the model. In this work, we concretize the abstract notion of […]

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Redefining in Dictionary: Towards an Enhanced Semantic Understanding of Creative Generation

Posted by dbos October 31, 2024Peking

Kavli Affiliate: Jing Wang | First 5 Authors: Fu Feng, Yucheng Xie, Xu Yang, Jing Wang, Xin Geng | Summary: “Creative” remains an inherently abstract concept for both humans and diffusion models. While text-to-image (T2I) diffusion models can easily generate out-of-domain concepts like “a blue banana”, they struggle with generating combinatorial objects such as “a […]

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Hair is complicated: Gravitational waves from stable and unstable boson-star mergers

Posted by dbos October 31, 2024November 11, 2024Cambridge

Kavli Affiliate: Ulrich Sperhake | First 5 Authors: Bo-Xuan Ge, Eugene A. Lim, Ulrich Sperhake, Tamara Evstafyeva, Daniela Cors | Summary: We explore the gravitational-wave emission from head-on collisions of equal-mass solitonic boson-star binaries from simulations spanning a two-dimensional parameter space, consisting of the central scalar-field amplitude of the stars and the solitonic potential parameter. […]

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An Exact Solution for the Kinetic Ising Model with Non-Reciprocity

Posted by October 31, 2024Chicago

Kavli Affiliate: Savdeep Sethi | First 5 Authors: Gabriel Weiderpass, Mayur Sharma, Savdeep Sethi, , | Summary: A wide range of non-equilibrium phenomena in nature involve non-reciprocal interactions. To understand the novel behaviors that can emerge in such systems, finding tractable models is essential. With this goal, we introduce a non-reciprocal generalization of the kinetic […]

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Solving the Kinetic Ising Model with Non-Reciprocity

Posted by dbos October 31, 2024November 11, 2024Chicago

Kavli Affiliate: Savdeep Sethi | First 5 Authors: Gabriel Weiderpass, Mayur Sharma, Savdeep Sethi, , | Summary: Non-reciprocal interactions are a generic feature of non-equilibrium systems. We define a non-reciprocal generalization of the kinetic Ising model in one spatial dimension. We solve the model exactly using two different approaches for infinite, semi-infinite and finite systems […]

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Observable CMB Tensor Modes from Cosmological Phase Transitions

Posted by dbos October 30, 2024November 11, 2024Chicago

Kavli Affiliate: Gordan Krnjaic | First 5 Authors: Kylar Greene, Aurora Ireland, Gordan Krnjaic, Yuhsin Tsai, | Summary: A B-mode polarization signal in the cosmic microwave background is widely regarded as smoking gun evidence for gravitational waves produced during inflation. Here we demonstrate that tensor perturbations from a cosmological phase transition in the post-inflationary universe […]

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Observable CMB B-modes from Cosmological Phase Transitions

Posted by October 30, 2024Chicago

Kavli Affiliate: Gordan Krnjaic | First 5 Authors: Kylar Greene, Aurora Ireland, Gordan Krnjaic, Yuhsin Tsai, | Summary: A B-mode polarization signal in the cosmic microwave background (CMB) is widely regarded as smoking gun evidence for gravitational waves produced during inflation. Here we demonstrate that tensor perturbations from a cosmological phase transition can produce a […]

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