6 research outputs found
The ENUBET Beamline
The ENUBET ERC project (2016-2021) is studying a narrow band neutrino beam
where lepton production can be monitored at single particle level in an
instrumented decay tunnel. This would allow to measure and
cross sections with a precision improved by about one order of
magnitude compared to present results. In this proceeding we describe a first
realistic design of the hadron beamline based on a dipole coupled to a pair of
quadrupole triplets along with the optimisation guidelines and the results of a
simulation based on G4beamline. A static focusing design, though less efficient
than a horn-based solution, results several times more efficient than
originally expected. It works with slow proton extractions reducing drastically
pile-up effects in the decay tunnel and it paves the way towards a time-tagged
neutrino beam. On the other hand a horn-based transferline would ensure higher
yields at the tunnel entrance. The first studies conducted at CERN to implement
the synchronization between a few ms proton extraction and a horn pulse of 2-10
ms are also described.Comment: Poster presented at NuPhys2018 (London 19-21 December 2018). 4 pages,
3 figure
Testbeam performance of a shashlik calorimeter with fine-grained longitudinal segmentation
An iron- plastic-scintillator shashlik calorimeter with a 4.3 X0 longitudinal segmentation was tested in November 2016 at the CERN East Area facility with charged particles up to 5 GeV . The performance of this detector in terms of electron energy resolution, linearity, response to muons and hadron showers are presented in this paper and compared with simulation. Such a fine-grained longitudinal segmentation is achieved using a very compact light readout system developed by the SCENTT and ENUBET Collaborations, which is based on fiber-SiPM coupling boards embedded in the bulk of the detector. We demonstrate that this system fulfills the requirements for neutrino physics applications and discuss performance and additional improvements
ENUBET: the first monitored neutrino beam
The main source of systematic uncertainty on neutrino cross section measurements at the GeV scale originates from the poor knowledge of the initial flux. The goal of the ENUBET project is to cut down this uncertainty to 1\% by monitoring the charged leptons produced in association with neutrinos, through the instrumentation of the decay region of a conventional narrow-band neutrino beam. In this contribution we discuss the final design of the horn-less beamline, that allows for a 1\% measurement of νe
and νμ
cross sections in about 3 years of data taking at CERN-SPS using ProtoDUNE as far detector, together with the particle identification performance. We also present for the first time the impact of the lepton monitoring in the reduction of the hadroproduction systematic on the neutrino flux. Finaly, we give an overwiev of the current status of the final demonstrator to be tested with charged particles at CERN in October 2022