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5-11 February 2017
Hyatt Regency Chicago
America/Chicago timezone

n Gluon Bremsstrahlung from Maximal Helicity Violating Techniques

Not scheduled
2h 30m
Hyatt Regency Chicago

Hyatt Regency Chicago

151 East Wacker Drive Chicago, Illinois, USA, 60601
Board: J07


Mr Andriniaina Rasoanaivo (University of Cape Town)


We present a new approach to compute the probability for emission of an arbitrary number of gluons radiated from a high-pT probe of the QGP. Our work is an extension of the maximal helicity violating (MHV) method in which the usual soft-collinear factor is classified according to its symmetry under gluon permutations.

For the purposes of illustration, we show the explicit form of the result from 1 to 3 gluon emissions then present the general expression for any generic n numbers of gluons. In particular, we compute for the first time analytically the QCD corrections to the multi-gluon Poisson approximation and evaluate numerically the importance of these corrections. Since all current energy loss calculations assume that the Poisson distribution of photons from QED bremsstrahlung is a good approximation for the multi-gluon radiation in QCD, our results will prove invaluable to leading particle and jet energy loss modellers.

Preferred Track Jets and High pT Hadrons
Collaboration Not applicable

Primary author

Mr Andriniaina Rasoanaivo (University of Cape Town)

Presentation materials