Erratum: Elements of a theory for multiparton interactions in QCD

JHEP03(2016)001

Published for SISSA by Springer

Received: February 16, 2016 Accepted: February 16, 2016 Published: March 1, 2016

Erratum: Elements of a theory for multiparton interactions in QCD

Markus Diehl,^a Daniel Ostermeier^b and Andreas Sch¨afer^b

aDeutsches Elektronen-Synchroton DESY, 22603 Hamburg, Germany

bInstitut f¨ur Theoretische Physik, Universit¨at Regensburg, 93040 Regensburg, Germany

E-mail: markus.diehl@desy.de,

Daniel.Ostermeier@physik.uni-regensburg.de, Andreas.Schaefer@physik.uni-regensburg.de Erratum to: JHEP03(2012)089

ArXiv ePrint: 1111.0910

1. In equations (3.41) and (3.42), all terms v⁺v⁻ should be changed intov⁺w⁻. 2. The second part of equation (4.25) correctly reads

M_aⁿ₁¹_,a^,n₂²(y²) = 1

2(p⁺)^1−n1−n2 Z

dy⁻ p

O_a^+···+

1 (0)O_a^+···+

2 (y) p

y⁺=0

with a factor 1/2 instead of 2.

3. Equation (5.75) correctly reads

" ₂ Y

i=1

Z d²ki

#

1Fa1,¯a2(xi,ki,r)

g→q¯q = αs

4π² 1 x1+x2

f₁^g(x1+x2)T_a^{l l}₁^′_,¯a2

x1

x1+x2

× Z

d²k k+¹₂rl

k−¹

2rl^′

k+¹₂r2

k−¹

2r2 , i.e. the factors (2π)² should be omitted on both sides.

4. Together with the surrounding text, equation (5.78) for the double parton distribution in 4−2ǫdimensions should read:

The result forFq,¯q(xi,ki,r) is then the same as in (5.42) with a modified kernel T_q,^{l l}q¯^′(u;ǫ) =δ^{l l′}

u²+ (1−u)²−ǫ (1−ǫ) times a power of (2π)^ǫ we need not specify here.

Open Access. This article is distributed under the terms of the Creative Commons Attribution License (CC-BY 4.0), which permits any use, distribution and reproduction in any medium, provided the original author(s) and source are credited.

Open Access, cThe Authors.

Article funded by SCOAP³. doi:10.1007/JHEP03(2016)001