BROOKHAVEN NATIONAL LABORATORY
MEMORANDUM
Date: 04 November 2015
To: ISAJET Users
From: F.E. Paige, S.D. Protopopescu, H. Baer, X. Tata
Subject: ISAJET 7.85
ISAJET 7.85 is now available.
Isajet 7.85 includes several changes.
1. Quark and gluon matrix elements for spin-independent neutralino-nucleon
scattering rates in ISARES were updated according to
Table 1 of Hisano et al., PRD87 (2013) 035020.
2. Light SUSY Higgs boson $h$ coupling strengths are computed for Isasugra
and are located in common block KPHGGS: $\kappa_b$,
$\kappa_t$, $\kappa_\tau$, $\kappa_W$, $\kappa_Z$, $\kappa_g$, $\kappa_\gamma$.
3. New Isasugra model which calculates non-universal
soft terms via $D$-term splittings is programmed as model $\#11$: NUHMDT.
The input parameters are $m_{16},$, $m_{1/2}$, $A_0$, $\tan\beta$, $\mu$,
$m_A$ where $\tan\beta$, $\mu$ and $m_A$ are weak scale inputs
and $m_{10}$ and $sign(M_D^2)\sqrt{|M_D^2|}$ are output parameters.
The $D$-term splitting model is defined in Eq. 11.18 of
{\it Weak Scale Supersymmetry}.
4. A scale factor multiplier SCLFAC can be input in scattering events
which multiplies the QCD coupling scale choice by a numerical factor
which can increase or decrease the tree level QCD cross section which is output.