Secondary heavy quark production in jets through mass modes

Autor(en)

Simon Gritschacher, Andre H. Hoang, Ilaria Jemos, Piotr Pietrulewicz

Abstrakt

We present an effective field theory method to determine secondary

massive quark effects in jet production taking the thrust distribution

for e+e−

collisions in the dijet limit as a concrete example. The method is

based on the field theoretic treatment of collinear and soft mass modes

which have to be separated coherently from the collinear and ultrasoft

modes related to massless quarks and gluons. For thrust the structure of

the conceptual setup is closely related to the production of massive

gauge bosons and involves four different effective field theories to

describe all possible kinematic situations. The effective field theories

merge into one another continuously and thus allow for a continuous

description from infinitely heavy to arbitrarily small masses keeping

the exact mass dependence of the most singular terms treated through

factorization. The mass mode field theory method we present here is in

the spirit of the variable fermion number scheme originally proposed by

Aivazis, Collins, Olness and Tung and can also be applied in hadron

collisions.

Organisation(en)

Teilchenphysik

Externe Organisation(en)

Ludwig-Maximilians-Universität München

Journal

Physical Review D

Band

Anzahl der Seiten

ISSN

1550-7998

Publikationsdatum

08-2013

Peer-reviewed

ÖFOS 2012

103036 Theoretische Physik, 103034 Teilchenphysik

Schlagwörter

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