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.