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Combining Fixed-Order Helicity Amplitudes With Resummation Using SCET
Iain W. Stewart, Frank J. Tackmann, Wouter J. Waalewijn
We discuss how to construct a simple and easy-to-use helicity operator basis in Soft-Collinear Effective Theory (SCET), for which the hard Wilson coefficients from matching QCD ont…
Double Parton Correlations in the Bag Model
Hsi-Ming Chang, Aneesh V. Manohar, Wouter J. Waalewijn
Double parton scattering is sensitive to correlations between the two partons in the hadron, including correlations in flavor, spin, color, momentum fractions and transverse separa…
Calculating the Charge of a Jet
Wouter J. Waalewijn
Jet charge has played an important role in experimentally testing the Parton Model and the Standard Model, and has many potential LHC applications. The energy-weighted charge of a…
The Beam Thrust Cross Section for Drell-Yan at NNLL Order
Iain W. Stewart, Frank J. Tackmann, Wouter J. Waalewijn
At the LHC and Tevatron strong initial-state radiation (ISR) plays an important role. It can significantly affect the partonic luminosity available to the hard interaction or conta…
The Quark Beam Function at NNLL
Iain W. Stewart, Frank J. Tackmann, Wouter J. Waalewijn
In hard collisions at a hadron collider the most appropriate description of the initial state depends on what is measured in the final state. Parton distribution functions (PDFs) e…