Standard Model Measurements

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Standard Model Measurements

Standard Model Measurements

Our current theory of the particle universe is embedded in the Standard Model of Particle Physics. Understanding the details of this theory in the extreme regions of phase space that are now accessible is an essential component of the our research. The ubiquity of Lorentz-boosted objects and the new processes that only become significant at these high energies necessitates detailed and thorough analysis in conjunction with searches for new phenomena.

Approach

  • We conducted the first ever measurement of the collinear emission of W bosons from high transverse moment quarks (arXiv:1609.07045). This process is a straightforward and well-known phenomenon, but one which had never before been studied. It also has the chance to both mimic signatures of new physics, and to cloud searches for new physics due to large variations in the theoretical predictions.
  • Detailed measurements of jet masses in a variety of final is also crucial for establishing the limits of the measurement as well as of the theoretical predictions themselves.
  • We have also made the first < href="https://arxiv.org/abs/1907.07093">differential jet mass measurement of boosted hadronically decaying Z bosons (arXiv:1907.07093).