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Search indexed NASA NTRS and DOE OSTI research on propulsion, heat transfer, battery materials and energy systems. Follow report and document links to the original sources.

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At least 1,045 records · Page 58
All sourcesNASA NTRSDOE OSTI
DOE OSTI2012

Measurement of CP Violation in B 0 d Mixing Using B 0 d → D *- μ + (ν μ )X Decays

This thesis describes the measurement of the time-integrated semileptonic charge asymmetry in B 0 d mixing, a d sl , using the decay chain of B 0 d ! D *- μ + (ν μ ), D *- ! D 0 π - , D 0 ! K + π - . Decay candidates are reconstructed from 10.4 fb -1 of data recorded by the DØ detector at Fermilab’s Tevatron p$\bar{p}$ collder during the 2002- 2011 ‘RunII’ data taking period. Yields are extracted using a 2 minimising simultaneous binned fit where 490k D candidates are reconstructed. The measurements presented in this thesis was made possible due to sophisticated online and offline reconstruction software, precise tracking systems, and the first-order background asymmetry negating magnet polarity reversal of the DØ detector.

72 PHYSICS OF ELEMENTARY PARTICLES AND FIELDS↗
DOE OSTI2018

Mu2e: A Search for Charged Lepton Flavor Violation

The presentation describes the μ → e conversion, CLFV in SM, NP contributions, history, the experimental setup involved, Mu2e detector details, and various aspects as these relate to physics.

46 INSTRUMENTATION RELATED TO NUCLEAR SCIENCE AND ↗
DOE OSTI2020

Search for Lepton Number Violation in 136 Xe and 134 Xe Decay

The EXO-200/nEXO group at Stony Brook University led by Krishna Kumar searched for neutrinoless double beta decay of 134 Xe and 136 Xe via participation in the final phase of the EXO-200 experiment and calibration pre-R&D for the next generation nEXO concept. On EXO-200, we carried out an improved analysis in the search for 134 Xe using data from Phase-II running. On nEXO, we completed a paper on our first phase of measurements demonstrating the feasibility of using photoelectricity from a gold photocathode to produce controlled amounts of charged clusters in liquid xenon. This has set the stage to develop a new test stand to evaluate the stability of a gold photocathode in order to explore the sensitivity of this method to monitor long electron lifetimes.

73 NUCLEAR PHYSICS AND RADIATION PHYSICS↗
DOE OSTI2022

Searches for Violations of Fundamental Symmetries [Slides]

The Standard Model of Particle Physics is currently the best theory to describe the most basic building blocks of the Universe. However, it does not explain the complete picture. We need physics beyond the Standard Model.

72 PHYSICS OF ELEMENTARY PARTICLES AND FIELDS↗