nudisxs

Table of Contents

• Overview
• REQUIREMENTS
• Installation
• Usage
• License

Overview

The nudisxs package integrates Python with Fortran computational routines, offering a user-friendly interface for complex neutrino-nucleon interaction simulations. This includes both charged and neutral current exchange calculations.

Requirements

• LHAPDF. Install it with python support. Follow installation instructions. Installations to a custom place like /foo/lhapdf requires setup of three variables

export PATH=$PATH:/foo/lhapdf/bin
export LD_LIBRARY_PATH=$LD_LIBRARY_PATH:/foo/lhapdf/lib
export PYTHONPATH=$PYTHONPATH:/foo/lhapdf/lib/pythonX.Y/site-packages

Installation

Installing from PyPi

You can easily install nudisxs from PyPi using pip:

pip install nudisxs

Installing from Git

To install the latest development version directly from the repository:

git clone git@git.jinr.ru:dnaumov/nudisxs.git
cd nudisxs
python install .

Usage

Python Interface The disxs.py module in nudisxs provides all necessary interfaces to the underlying Fortran code. This includes functions for initialization and calculation of cross-sections.

Initialization

Common initialization functions:

• most used:

  • init_neutrino()
  • init_pdf()
  • init_target()

• for experts:

  • init_masses()
  • init_bend_factor()
  • init_q2_min()
  • init_abc()
  • init_structure_functions()
  • init_r_function()
  • init_final_hadron_mass()
  • init_fl_function()
  • init_qc()

• double differential cross-sections

\frac{d^2\sigma}{dxdy}

are available as
disxs.xs_cc(e,x,y) for charged current exchange and disxs.xs_nc(e,x,y) for neutral current exchange.

• some examples can be found in
  • nudisxs/tests/test_dis.py
  • nudisxs/tests/test_dis_total.py

License

nudisxs is distributed under the terms of the MIT license.