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	diff --git a/include/HEJ/Constants.hh b/include/HEJ/Constants.hh
	index 9b93cf5..be79bae 100644
	--- a/include/HEJ/Constants.hh
	+++ b/include/HEJ/Constants.hh
	@@ -1,40 +1,39 @@
	/** \file
	* \brief Header file defining all global constants used for HEJ
	*
	* \authors The HEJ collaboration (see AUTHORS for details)
	* \date 2019
	* \copyright GPLv2 or later
	*/
	#pragma once

	namespace HEJ{
	/// @name QCD parameters
	//@{
	constexpr double N_C = 3.; //!< number of Colours
	constexpr double C_A = N_C; //!< \f$C_A\f$
	constexpr double C_F = (N_CN_C - 1.)/(2.N_C); //!< \f$C_F\f$
	constexpr double t_f = 0.5; //!< \f$t_f\f$
	constexpr double n_f = 5.; //!< number light flavours
	constexpr double beta0 = 11./3.C_A - 4./3.t_f*n_f; //!< \f$\beta_0\f$
	//@}
	/// @name QFT parameters
	//@{
	- constexpr double gw = 0.653233; //!< elector-weak coupling
	constexpr double MW = 80.419; //!< The W mass in GeV/c^2
	constexpr double GammaW = 2.0476; //!< the W width in GeV/c^2

	//@}
	/// @name Generation Parameters
	//@{
	//! @brief Default scale for virtual correction
	//! \f$\lambda\f$ cf. eq. (20) in \cite Andersen:2011hs
	constexpr double CLAMBDA = 0.2;
	constexpr double CMINPT = 0.2; //!< minimal \f$p_t\f$ of all partons
	//@}
	/// @name Conventional Parameters
	//@{
	//! Value of first colour for colour dressing, according to LHE convention
	//! \cite Boos:2001cv
	constexpr int COLOUR_OFFSET = 501;
	//@}
	}