CERN Accelerating science

Report number	CERN-SHiP-NOTE-2020-001
Title	Measuremenmt of the muon flux for the SHiP experiment for intermediate magenetic field strength
Publication	2020
Collaboration	SHiP Collaboration
Imprint	2020-09-14
Subject category	Accelerators and Storage Rings
Accelerator/Facility, Experiment	CERN SPS ; SHiP NA67
Keywords	SHiP ; SPS ; muon flux ; beam dump ; goliath ; magnetic field
Abstract	We report the results of the measurement of the muon flux emanating from the SHiP target at the CERN SPS. A replica of the SHiP target followed by a $2.4 \rm{m}$ iron hadron absorber was installed in the H4 400 GeV/c proton beamline. To measure the momentum spectrum, a spectrometer consisting of drift tubes and resistive plate chambers (RPCs) was placed around the Goliath magnet. During a three week period a dataset for analysis corresponding to $3.25 \times 10^{11}$ protons on target (POT) was recorded. This amounts to approximatively $1\%$ of a SHiP spill. The amount of accumulated data allows us to make a validation of the results from our Pythia and Geant4 based Monte Carlo (FairShip). This analysis is a follow up of the full field inclusive muon flux analysis. \cite{muflux} It contains the analysis of the data taken with intermediate magnetic field.
Submitted by	eric.van.herwijnen@cern.ch