Abstract
In high energy experiments such as active beam dump searches for rare decays and missing energy events, the beam purity is a crucial parameter. In this paper we present a technique to reject heavy charged particle contamination in the 100 GeV electron beam of the H4 beam line at CERN SPS. The method is based on the detection with BGO scintillators of the synchrotron radiation emitted by the electrons passing through a bending dipole magnet. A 100 GeV π− beam is used to test the method in the NA64 experiment resulting in a suppression factor of 10−5 while the efficiency for electron detection is ∼95%. The spectra and the rejection factors are in very good agreement with the Monte Carlo simulation. The reported suppression factors are significantly better than previously achieved.
| Original language | English |
|---|---|
| Pages (from-to) | 196-201 |
| Number of pages | 6 |
| Journal | Nuclear Instruments and Methods in Physics Research, Section A: Accelerators, Spectrometers, Detectors and Associated Equipment |
| Volume | 866 |
| DOIs | |
| Publication status | Published - 11 Sep 2017 |
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Keywords
- Hadron rejection
- High energy electron tagging
- Synchrotron detector
ASJC Scopus subject areas
- Nuclear and High Energy Physics
- Instrumentation
Cite this
High purity 100 GeV electron identification with synchrotron radiation. / Depero, E.; Banerjee, D.; Burtsev, V.; Chumakov, A.; Cooke, D.; Dermenev, A. V.; Donskov, S. V.; Dubinin, F.; Dusaev, R. R.; Emmenegger, S.; Fabich, A.; Frolov, V. N.; Gardikiotis, A.; Gninenko, S. N.; Hösgen, M.; Karneyeu, A. E.; Ketzer, B.; Kirsanov, M. M.; Konorov, I. V.; Kramarenko, V. A.; Kuleshov, S. V.; Lyubovitskij, V. E.; Lysan, V.; Matveev, V. A.; Mikhailov, Yu V.; Myalkovskiy, V. V.; Peshekhonov, D. V.; Peshekhonov, D. V.; Polyakov, V. A.; Radics, B.; Rubbia, A.; Samoylenko, V. D.; Tikhomirov, V. O.; Tlisov, D. A.; Toropin, A. N.; Vasilishin, B.; Arenas, G. Vasquez; Ulloa, P.; Crivelli, P.
In: Nuclear Instruments and Methods in Physics Research, Section A: Accelerators, Spectrometers, Detectors and Associated Equipment, Vol. 866, 11.09.2017, p. 196-201.Research output: Contribution to journal › Article
}
TY - JOUR
T1 - High purity 100 GeV electron identification with synchrotron radiation
AU - Depero, E.
AU - Banerjee, D.
AU - Burtsev, V.
AU - Chumakov, A.
AU - Cooke, D.
AU - Dermenev, A. V.
AU - Donskov, S. V.
AU - Dubinin, F.
AU - Dusaev, R. R.
AU - Emmenegger, S.
AU - Fabich, A.
AU - Frolov, V. N.
AU - Gardikiotis, A.
AU - Gninenko, S. N.
AU - Hösgen, M.
AU - Karneyeu, A. E.
AU - Ketzer, B.
AU - Kirsanov, M. M.
AU - Konorov, I. V.
AU - Kramarenko, V. A.
AU - Kuleshov, S. V.
AU - Lyubovitskij, V. E.
AU - Lysan, V.
AU - Matveev, V. A.
AU - Mikhailov, Yu V.
AU - Myalkovskiy, V. V.
AU - Peshekhonov, D. V.
AU - Peshekhonov, D. V.
AU - Polyakov, V. A.
AU - Radics, B.
AU - Rubbia, A.
AU - Samoylenko, V. D.
AU - Tikhomirov, V. O.
AU - Tlisov, D. A.
AU - Toropin, A. N.
AU - Vasilishin, B.
AU - Arenas, G. Vasquez
AU - Ulloa, P.
AU - Crivelli, P.
PY - 2017/9/11
Y1 - 2017/9/11
N2 - In high energy experiments such as active beam dump searches for rare decays and missing energy events, the beam purity is a crucial parameter. In this paper we present a technique to reject heavy charged particle contamination in the 100 GeV electron beam of the H4 beam line at CERN SPS. The method is based on the detection with BGO scintillators of the synchrotron radiation emitted by the electrons passing through a bending dipole magnet. A 100 GeV π− beam is used to test the method in the NA64 experiment resulting in a suppression factor of 10−5 while the efficiency for electron detection is ∼95%. The spectra and the rejection factors are in very good agreement with the Monte Carlo simulation. The reported suppression factors are significantly better than previously achieved.
AB - In high energy experiments such as active beam dump searches for rare decays and missing energy events, the beam purity is a crucial parameter. In this paper we present a technique to reject heavy charged particle contamination in the 100 GeV electron beam of the H4 beam line at CERN SPS. The method is based on the detection with BGO scintillators of the synchrotron radiation emitted by the electrons passing through a bending dipole magnet. A 100 GeV π− beam is used to test the method in the NA64 experiment resulting in a suppression factor of 10−5 while the efficiency for electron detection is ∼95%. The spectra and the rejection factors are in very good agreement with the Monte Carlo simulation. The reported suppression factors are significantly better than previously achieved.
KW - Hadron rejection
KW - High energy electron tagging
KW - Synchrotron detector
UR - http://www.scopus.com/inward/record.url?scp=85021221328&partnerID=8YFLogxK
UR - http://www.scopus.com/inward/citedby.url?scp=85021221328&partnerID=8YFLogxK
U2 - 10.1016/j.nima.2017.05.028
DO - 10.1016/j.nima.2017.05.028
M3 - Article
VL - 866
SP - 196
EP - 201
JO - Nuclear Instruments and Methods in Physics Research, Section A: Accelerators, Spectrometers, Detectors and Associated Equipment
JF - Nuclear Instruments and Methods in Physics Research, Section A: Accelerators, Spectrometers, Detectors and Associated Equipment
SN - 0168-9002
ER -