Results 11 to 20 of about 3,185 (219)
Achieving GPT-4o level performance in astronomy with a specialized 8B-parameter large language model [PDF]
Scientific ReportsAstroSage-Llama-3.1-8B is a domain-specialized natural-language AI assistant tailored for research in astronomy, astrophysics, cosmology, and astronomical instrumentation.
Tijmen de Haan +8 more
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100 Years of Astronomy, Astrophysics and Cosmology [PDF]
Proceedings of the International Astronomical Union, 2018 AbstractAstronomy, astrophysics and cosmology have changed out of all recognition over the last 100 years. The IAU has provided an essential means of fostering international collaboration in these disciplines including times of international tension. Developments will be highlighted which have profoundly changed our understanding and insight into the ...
openaire +1 more source
Electroweak splitting functions and high energy showering
Journal of High Energy Physics, 2017 We derive the electroweak (EW) collinear splitting functions for the Standard Model, including the massive fermions, gauge bosons and the Higgs boson. We first present the splitting functions in the limit of unbroken SU(2) L × U(1) Y and discuss their ...
Junmou Chen, Tao Han, Brock Tweedie
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Structure of Chern-Simons scattering amplitudes from topological equivalence theorem and double-copy
Journal of High Energy Physics, 2022 We study the mechanism of topological mass-generation for 3d Chern-Simons (CS) gauge theories, where the CS term can retain the gauge symmetry and make gauge boson topologically massive.
Yan-Feng Hang, Hong-Jian He, Cong Shen
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Massive color-kinematics duality and double-copy for Kaluza-Klein scattering amplitudes
Journal of High Energy Physics, 2023 We study the structure of scattering amplitudes of massive Kaluza-Klein (KK) states under toroidal compactification. We present a shifting method to quantitatively derive the scattering amplitudes of massive KK gauge bosons and KK gravitons from the ...
Yao Li, Yan-Feng Hang, Hong-Jian He
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Journal of High Energy Physics, 2020 We investigate simple extensions of the Mirror Twin Higgs model in which the twin color gauge symmetry and the discrete ℤ2 mirror symmetry are spontaneously broken. This is accomplished in a minimal way by introducing a single new colored triplet, sextet,
Brian Batell +2 more
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Hybrid renormalization for quasi distribution amplitudes of a light baryon
Journal of High Energy Physics, 2023 We develop a hybrid scheme to renormalize quasi distribution amplitudes of a light baryon on the lattice, which combines the self-renormalization and ratio scheme.
Chao Han +3 more
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Journal of High Energy Physics, 2018 In this paper we study the fragmentation of a parton into a jet containing a heavy quark. When heavy quarks are involved in a jet, the quark mass can lead to a numerically significant correction to the jet cross section and its substructure.
Lin Dai, Chul Kim, Adam K. Leibovich
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Precision test of the muon-Higgs coupling at a high-energy muon collider
Journal of High Energy Physics, 2021 We explore the sensitivity of directly testing the muon-Higgs coupling at a high-energy muon collider. This is strongly motivated if there exists new physics that is not aligned with the Standard Model Yukawa interactions which are responsible for the ...
Tao Han +6 more
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Meridian Circle Astrometry at the U. S. Naval Observatory
Cahiers François Viète, 2023 For 150 years meridian circles have played an essential part in the mission of the U. S. Naval Observatory (USNO) in its dual role as a naval observatory, in support of celestial navigation, and as a national observatory, improving the celestial ...
Richard E. Schmidt, Steven J. Dick
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