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2019-04-17
04:08
First observation of the radiative decay $\Lambda_{b}^{0} \to \Lambda \gamma$ / LHCb Collaboration
The radiative decay $\Lambda_{b}^{0} \to \Lambda \gamma$ is observed for the first time using a data sample of proton-proton collisions corresponding to an integrated luminosity of $1.7\,fb^{-1}$ collected by the LHCb experiment at a center-of-mass energy of $13\,TeV$. [...]
arXiv:1904.06697 ; CERN-EP-2019-060 ; LHCb-PAPER-2019-010. -
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2019-04-16
09:15
A Survey on Analog-to-Digital Converter Performance with Respect to Ionizing Radiation / Mueller, Steffen (U. Erlangen-Nuremberg (main)) ; Weigel, Robert (U. Erlangen-Nuremberg (main)) ; Koelpin, Alexander (Brandenburg Tech. U.)
This paper discusses radiation performance evolution of analog-to-digital converters, based on a comprehensive empirical analysis of both, experimental reports and datasheet specifications including commercial devices, radiation hardened parts, and scientific converters..
4 p.
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2019-04-16
09:15
Advanced In-Situ Instrumentation of RF Circuits for Mixed-Field Irradiation Testing Purpose / Mueller, Steffen (U. Erlangen-Nuremberg (main)) ; Danzeca, Salvatore (CERN) ; García Alía, Rubén (CERN) ; Brugger, Markus (CERN) ; Weigel, Robert (U. Erlangen-Nuremberg (main)) ; Koelpin, Alexander (Brandenburg Tech. U.)
This paper presents a method that applies multiplexing and in-fixture calibration technique to qualify for efficient instrumentation of multiple RF circuits up to 6 GHz during mixed-field irradiation..
5 p.
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2019-04-16
04:50
Shocks, Superconvergence, and a Stringy Equivalence Principle / Kologlu, Murat ; Kravchuk, Petr ; Simmons-Duffin, David ; Zhiboedov, Alexander
We study propagation of a probe particle through a series of closely situated gravitational shocks. [...]
arXiv:1904.05905 ; CALT-TH 2019-012 ; CERN-TH-2019-040. - 93 p.
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2019-04-16
04:50
Heavy flavour measurements with the ALICE experiment at the LHC / Vertesi, Robert
Heavy quarks (charm and beauty) are produced early in the nucleus-nucleus collisions, and heavy flavor survives throughout the later stages. [...]
arXiv:1904.06180. -
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2019-04-16
04:50
Searching for quantum black hole structure with the Event Horizon Telescope / Giddings, Steven B. (UC, Santa Barbara ; CERN)
The impressive images from the Event Horizon Telescope sharpen the conflict between our observations of gravitational phenomena and the principles of quantum mechanics. [...]
arXiv:1904.05287. - 6 p.
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2019-04-16
04:50
Branes with Brains: Exploring String Vacua with Deep Reinforcement Learning / Halverson, James (Northeastern U.) ; Nelson, Brent (Northeastern U.) ; Ruehle, Fabian (CERN ; Oxford U., Theor. Phys.)
We propose deep reinforcement learning as a model-free method for exploring the landscape of string vacua. [...]
arXiv:1903.11616. - 60 p.
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2019-04-16
04:50
Tests of General Relativity and Fundamental Physics with Space-based Gravitational Wave Detectors / Berti, Emanuele (Johns Hopkins U. ; Mississippi U.) ; Barausse, Enrico (CNRS, France ; UPMC, Paris (main)) ; Cholis, Ilias (Oakland U.) ; García-Bellido, Juan (Madrid, IFT ; CERN) ; Holley-Bockelmann, Kelly (Vanderbilt U. (main) ; Fisk U.) ; Hughes, Scott A. (Cambridge U. (main)) ; Kelly, Bernard (NASA, Goddard ; CRESST, Greenbelt ; Maryland U., Baltimore County) ; Kovetz, Ely D. (Johns Hopkins U.) ; Littenberg, Tyson B. (NASA, Marshall) ; Livas, Jeffrey (NASA, Goddard) et al.
Low-frequency gravitational-wave astronomy can perform precision tests of general relativity and probe fundamental physics in a regime previously inaccessible. [...]
arXiv:1903.02781. - 10 p.
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2019-04-14
04:48
Exploring strong-field deviations from general relativity via gravitational waves / Giddings, Steven B. (UC, Santa Barbara ; CERN) ; Koren, Seth (UC, Santa Barbara) ; Treviño, Gabriel (UC, Santa Barbara)
Two new observational windows have been opened to strong gravitational physics: gravitational waves, and very long baseline interferometry. [...]
arXiv:1904.04258. - 20 p.
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2019-04-14
04:48
NLO angularity distributions with recoil / Budhraja, Ankita (IISER, Bhopal) ; Jain, Ambar (IISER, Bhopal) ; Procura, Massimiliano (Vienna U. ; CERN)
Angularities are event shapes whose sensitivity to the splitting angle of a collinear emission is controlled by a continuous parameter $b$, with $ -1 < b < \infty$. [...]
arXiv:1903.11087 ; UWThPh 2019-5. - 45 p.
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