Browsing FAS Scholarly Articles by Keyword "QCD"

Now showing items 1-4 of 4

    • Annihilation Decays of Bound States at the LHC 

      Kats, Yevgeny; Schwartz, Matthew D (Springer Verlag, 2010)
      At the Large Hadron Collider, heavy particles may be produced in pairs close to their kinematic threshold. If these particles have strong enough attractive interactions they may form bound states. Consequently, the bound ...

    • Direct Photon Production With Effective Field Theory 

      Becher, Thomas; Schwartz, Matthew D (Springer Verlag, 2010)
      The production of hard photons in hadronic collisions is studied using Soft-Collinear Effective Theory (SCET). This is the first application of SCET to a physical, observable cross section involving energetic partons in ...

    • A Precise Determination of \(\alpha_s\) From LEP Thrust Data Using Effective Field Theory 

      Becher, Thomas; Schwartz, Matthew D (Springer Verlag, 2008)
      Starting from a factorization theorem in Soft-Collinear Effective Theory, the thrust distribution in e\(^+\)e\(^-\) collisions is calculated including resummation of the next-to-next-to-next-to leading logarithms. This is ...

    • Resummation of Heavy Jet Mass and Comparison to LEP Data 

      Chen, Yang-Ting; Schwartz, Matthew D (Springer Verlag, 2010)
      The heavy jet mass distribution in e\(^+\)e\(^−\) collisions is computed to next-to-next-to-next-to leading logarithmic (N\(^3\)LL) and next-to-next-to leading fixed order accuracy (NNLO). The singular terms predicted from ...