This is a list of changes to higlu.f since October 1995:
May 19 2016: - bug fix in HDECAY interface for MSbar quark masses
(thanks to R. Harlander, A. Lazopoulos and H. Mantler)
January 13 2016: version 4.34:
- bug fix in SLHA interface
- bug fix for pseudoscalar Higgs: missing variable
defined
(thanks to A. Arbey)
December 16 2015: version 4.33:
- bug fixes in matching to dim5 operators
December 4 2015: version 4.32:
- scale dependence of c_g improved
- flag setting corrected
December 4 2015: version 4.31:
- added an extensive comment card at the beginning of
higlu.f explaining the input in higlu.in
- linked to new version 6.50 of HDECAY (using MSbar
masses for bottom and charm as input)
October 14 2015: version 4.30:
- NNLL scale dependence of point-like Hgg coupling c_g
included -> input scale added to input file
- typos corrected (no numerical impact)
September 4 2015: - Typos in NNLO scale dependence corrected
April 17 2015: version 4.20:
- Extension to inclusion of dim5 operator
L_6 = c_g \alpha_s/\pi G^{a\mu\nu} G^a_{\mu\nu} H/v
up to NNLO in the inclusive cross section (including the
mismatch of virtual corrections originating from the
effective Lagrangian compared to the top loops) and at
LO for the pT distribution (that contributes to the NLO
corrections to the inclusive cross section).
April 7 2015: - Typo in NNLO scale dependence corrected. Numerical
impact only for different renormalization and
factorization scales.
March 6 2015: - Typo in SM4 extension corrected.
March 3 2015: version 4.10:
- link to new HDECAY version 6.41
- addition of charm loops (a per-cent effect on the cxn)
December 10 2013: version 4.00: major upgrade
- general link to HDECAY 6.00 with 2HDM extension
- calculation of consistent LO, NLO and NNLO cross
sections in a single run (all three PDFs need to be
defined in higlu.in)
- model determined by hdecay.in in HDECAY style
- NNLO corrections (in the heavy quark limit) only added
to top-loop contributions (and t'/b'-loop
contributions in the SM4) in all models
- optionally the SM elw. corrections can be included
within the 2HDM by rescaling them by the HWW/HZZ
coupling factors as an approximation
December 2 2013: - Typos in NNLO corrections to pseudoscalar Higgs
production corrected (numerical impact small)
(thanks to R. Harlander).
November 21 2013: - Typos in NNLO corrections to pseudoscalar Higgs
production corrected (numerical impact small)
(thanks to R. Harlander).
October 31 2012: - Bug in feynhiggs.f corrected (not our fault)
October 16 2012: - bug for bottom loops corrected (does not affect
results using the bottom pole mass)
October 11 2011: version 3.11
- update of the grid for elw. corrections within the SM4
September 20 2011: version 3.10:
- inclusion of elw. SM4 corrections for m_b'=600 GeV and
m_t' = m_b' + 50*(1+log[M_H/(115 GeV)]/5) GeV. Please,
cite the following paper for these corrections:
%\cite{Passarino:2011kv}
\bibitem{Passarino:2011kv}
G.~Passarino, C.~Sturm, S.~Uccirati,
%``Complete Electroweak Corrections to Higgs production in a Standard
%Model with four generations at the LHC,''
[arXiv:1108.2025 [hep-ph]].
July 6 2011: version 3.01:
- small refinement in the NNLO QCD corrections within the
SM4
July 5 2011: version 3.00: major upgrade
- NNLO QCD corrections and mixed elw./QCD corrections
to total cxn included
- NNLO evolution of alpha_s included
- Extension to 4th-generation SM4 @ NNLO added
February 16 2011: version 2.504: Bugs in initialization of the quark
masses corrected (thanks to S. Liebler)
January 28 2011: version 2.503: Decoupling of quark masses inside the
loops from quark masses for alpha_s in order to allow
for 4th-generation quarks etc.
November 26 2010: version 2.502: Bug in transformation from bottom pole
mass to MSbar mass corrected, numerical effect small
November 5 2010: version 2.501: Bug in Higgs pT distribution in the gq
channel corrected. Numerical effect small (thanks to
R. Harlander and H. Mantler).
April 20 2010: version 2.500:
- Flag for electroweak corrections provided with check if
calculation within the SM
- Squark loops added for MSSM including the pure QCD
corrections of
%\cite{Muhlleitner:2006wx}
\bibitem{Muhlleitner:2006wx}
M.~Muhlleitner and M.~Spira,
%``Higgs boson production via gluon fusion: Squark loops at NLO QCD,''
Nucl.\ Phys.\ B {\bf 790} (2008) 1
[arXiv:hep-ph/0612254].
%%CITATION = NUPHA,B790,1;%%
The Squark couplings G_SBi, G_STi are the ones of
Eqs.(21,25,29) of this paper, if MODEL = 0. Within the
MSSM they multiply the MSSM couplings, i.e.
G_SBi = G_STi = 1 defines the MSSM.
February 18 2010: - version 2.400:
Electroweak corrections to SM Higgs boson production
implemented in factorized form (thanks to G. Passarino
et al.). Please, cite the following papers for these
corrections:
%\cite{Actis:2008ts}
\bibitem{Actis:2008ts}
S.~Actis, G.~Passarino, C.~Sturm and S.~Uccirati,
%``NNLO Computational Techniques: the Cases H -> gamma gamma and H -> g g,''
Nucl.\ Phys.\ B {\bf 811} (2009) 182
[arXiv:0809.3667 [hep-ph]].
%%CITATION = NUPHA,B811,182;%%
%\cite{Actis:2008ug}
\bibitem{Actis:2008ug}
S.~Actis, G.~Passarino, C.~Sturm and S.~Uccirati,
%``NLO Electroweak Corrections to Higgs Boson Production at Hadron
%Colliders,''
Phys.\ Lett.\ B {\bf 670} (2008) 12
[arXiv:0809.1301 [hep-ph]].
%\cite{Actis:2008uh}
\bibitem{Actis:2008uh}
S.~Actis, G.~Passarino, C.~Sturm and S.~Uccirati,
%``Two-Loop Threshold Singularities, Unstable Particles and Complex Masses,''
Phys.\ Lett.\ B {\bf 669} (2008) 62
[arXiv:0809.1302 [hep-ph]].
%%CITATION = PHLTA,B669,62;%%
November 20 2009: - Link to LHAPDF implemented. Fortran compiler
gfortran added to makefile. Links to PDFLIB, MRST2001
and MSTW2008 removed (included in LHAPDF).
October 16 2009: - Option to choose between bottom pole mass and bottom
MSbar mass (including independent scale choice) added
**********************************************************
BOTTOM MASS: 0 = POLE MASS 1 = MSBAR MASS
============ SCALE = MU_1*M_HIGGS + MU_2 (FOR MSBAR MASS)
BOTMASS = 0
MU_1 = 0.D0
MU_2 = 10.D0
**********************************************************
Careful: Best choices are pole mass or MSbar bottom
mass at a scale of O(m_b) due to large logs if the
scale is of O(Higgs mass)! (see Fig.7a of NPB453 (1995) 17)
--> version 2.300
October 15 2009: - Link to MSTW2008 PDFs
- dsigma/p_T and d2sigma/dp_T/dy distributions added (LO):
**********************************************************
DISTRIBUTIONS: 0=TOT CXN 1=D2SIGMA/DP_T/DY 2=DSIGMA/DP_T
============= (ONLY FOR GG --> H)
DISTRIB = 0
P_T = 100.D0
Y = 0.D0
**********************************************************
--> version 2.200
Note that the central scale for the pt distributions is
defined to be the transverse mass by default!
April 3 2006: - Adding delta_mb corrections to bottom Yukawa couplings
March 1 2006: - Removing an instability in the subroutine AMHAMA
(thanks to P. Trueb)
April 12 2005: - Link to CTEQ6 and MRST2001 PDFs
(NGROUP = -1: CTEQ6 -2: MRST2001)
November 7 2003: - Lines 919,920 added due to problems with g77 compiler
(thanks to M. Schumacher)
November 6 2003: - Lines 491-495 commented out to allow arbitrary Yukawa
couplings (thanks to M. Schumacher)
February 28 2003: - Extension of MSSM subroutines such that they are in
agreement with HDECAY (version 3.0) now.