Kavli Affiliate: Gordan Krnjaic | First 5 Authors: Stephen Appert, Stephen Appert, , , | Summary: LDMX, The Light Dark Matter eXperiment, is a missing momentum search for hidden sector dark matter in the MeV to GeV range. It will be located at SLAC in End Station A, and will employ an 8 GeV electron […]
Kavli Affiliate: Gordan Krnjaic | First 5 Authors: Torsten Akesson, Torsten Akesson, , , | Summary: The Light Dark Matter eXperiment (LDMX) is an electron fixed-target experiment optimized to search for sub-GeV dark matter production through the missing momentum signature. LDMX is designed to operate in End Station A at SLAC, using an 8 GeV […]
Kavli Affiliate: Alexander P. Ji | First 5 Authors: Mairéad E Heiger, Mairéad E Heiger, , , | Summary: We present detailed chemical abundances of the brightest star in each of the ultra-faint dwarf galaxies Eridanus IV and Centaurus I using high-resolution Magellan/MIKE spectroscopy. The brightest star in Centaurus I, CenI-5136, is a very metal-poor […]
Kavli Affiliate: Savdeep Sethi | First 5 Authors: Andrea Dei, Andrea Dei, , , | Summary: Computing the Euclidean spacetime action on-shell provides a useful way of both testing holographic proposals and determining the string theory sphere partition function. We consider families of three-dimensional linear dilaton spacetimes for which there are holographic proposals that share […]
Kavli Affiliate: Savdeep Sethi | First 5 Authors: Andrea Dei, Andrea Dei, , , | Summary: Computing the Euclidean spacetime action on-shell provides a useful way of both testing holographic proposals and determining the string theory sphere partition function. We consider families of three-dimensional linear dilaton spacetimes for which there are holographic proposals that share […]
Kavli Affiliate: Emil J. Martinec | First 5 Authors: Iosif Bena, Iosif Bena, , , | Summary: In AdS$_3$/CFT$_2$ duality, there are large families of smooth, horizonless microstate geometries that correspond to heavy pure states of the dual CFT. The metric and fluxes are complicated functions of up to five coordinates. There are also many […]
Kavli Affiliate: Salman Habib | First 5 Authors: Nesar Ramachandra, Nesar Ramachandra, , , | Summary: Pre-trained Large Language Models (LLMs) have revolutionized text processing, yet adapting Transformer-based neural networks to non-textual scientific modalities typically requires specialized architectures and extensive computational resources. We demonstrate that LLaMA-3.1-8B can be efficiently repurposed to predict galaxy redshifts from […]
Kavli Affiliate: Gordan Krnjaic | First 5 Authors: LDMX Collaboration, LDMX Collaboration, , , | Summary: The Light Dark Matter eXperiment (LDMX) is proposed to employ a thin tungsten target and a multi-GeV electron beam to carry out a missing momentum search for the production of dark matter candidate particles. We study the sensitivity for […]
Kavli Affiliate: Gordan Krnjaic | First 5 Authors: LDMX Collaboration, LDMX Collaboration, , , | Summary: The Light Dark Matter eXperiment (LDMX) is proposed to employ a thin tungsten target and a multi-GeV electron beam to carry out a missing momentum search for the production of dark matter candidate particles. We study the sensitivity for […]
Kavli Affiliate: Emil J. Martinec | First 5 Authors: Emil J. Martinec, Emil J. Martinec, , , | Summary: Supergravity solutions describing supersymmetric rotating bound states of NS fivebranes, fundamental strings and momentum can sometimes have an ergoregion but no horizon. In such supersymmetric ergoregions, there is an unusual feature that there exist BPS "excitations" […]