Design and status of the Mu2e electromagnetic calorimeter

被引：19

作者：

Atanov, N. ^{[1
]}

Baranov, V. ^{[1
]}

Budagov, J. ^{[1
]}

Carosi, R. ^{[5
]}

Cervelli, F. ^{[5
]}

Colao, F. ^{[2
]}

Cordelli, M. ^{[2
]}

Corradi, G. ^{[2
]}

Dane, E. ^{[2
]}

Davydov, Yu. I. ^{[1
]}

Di Falco, S. ^{[5
]}

Donati, S. ^{[5
,7
]}

Donghia, R. ^{[2
,10
]}

Echenard, B. ^{[3
]}

Flood, K. ^{[3
]}

Giovannella, S. ^{[2
]}

Glagolev, V. ^{[1
]}

Grancagnolo, F. ^{[9
]}

Happacher, F. ^{[2
]}

Hitlin, D. G. ^{[3
]}

Martini, M. ^{[2
,4
]}

Miscetti, S. ^{[2
]}

Miyashita, T. ^{[3
]}

Morescalchi, L. ^{[5
,6
]}

Murat, P. ^{[8
]}

Pasciuto, D. ^{[5
,7
]}

Pezzullo, G. ^{[5
,7
]}

Porter, F. ^{[3
]}

Saputi, A. ^{[2
]}

Sarra, I. ^{[2
]}

Soleti, S. R. ^{[2
]}

Spinella, F. ^{[5
]}

Tassielli, G. ^{[9
]}

Tereshchenko, V. ^{[1
]}

Usubov, Z. ^{[1
]}

Zhu, R. Y. ^{[3
]}

机构：

[1] Joint Inst Nucl Res, Dubna, Russia

[2] Ist Nazl Fis Nucl, Lab Nazl Frascati, POB 13, I-00044 Frascati, Italy

[3] CALTECH, Pasadena, CA 91125 USA

[4] Univ Guglielmo Marconi, Rome, Italy

[5] Ist Nazl Fis Nucl, Sez Pisa, Pisa, Italy

[6] Univ Siena, Dipartimento Fis, Via Laterina 8, I-53100 Siena, Italy

[7] Univ Pisa, Dipartimento Fis, Pisa, Italy

[8] Fermi Natl Lab, Batavia, IL USA

[9] Ist Nazl Fis Nucl, Sez Lecce, I-73100 Lecce, Italy

[10] Univ Rome Tre, I-00146 Rome, Italy

来源：

NUCLEAR INSTRUMENTS & METHODS IN PHYSICS RESEARCH SECTION A-ACCELERATORS SPECTROMETERS DETECTORS AND ASSOCIATED EQUIPMENT | 2016年 / 824卷

基金：

欧盟地平线“2020”;

关键词：

Calorimetry; Scintillating crystals; Avalanche photodiodes; Silicon photomultipliers; Lepton flavour violation;

D O I：

10.1016/j.nima.2015.09.074

中图分类号：

TH7 [仪器、仪表];

学科分类号：

0804 ; 080401 ; 081102 ;

摘要：

The Mu2e experiment at Fermilab aims at measuring the neutrinoless conversion of a negative muon into an electron and reach a single event sensitivity of 2.5 x 10(-17) after three years of data taking. The monoenergetic electron produced in the final state, is detected by a high precision tracker and a crystal calorimeter, all embedded in a large superconducting solenoid (SD) surrounded by a cosmic ray veto system. The calorimeter is complementary to the tracker, allowing an independent trigger and powerful particle identification, while seeding the track reconstruction and contributing to remove background tracks mimicking the signal. In order to match these requirements, the calorimeter should have an energy resolution of O(5)% and a time resolution better than 500 ps at 100 MeV. The baseline solution is a calorimeter composed of two disks of BaF2 crystals read by UV extended, solar blind, Avalanche Photodiode (APDs), which are under development from a JPL, Caltech, RMD consortium. In this paper, the calorimeter design, the R&D studies carried out so far and the status of engineering are described. A backup alternative setup consisting of a pure CsI crystal matrix read by UV extended Hamamatsu MPPC's is also presented. (C) 2015 Elsevier B.V. All rights reserved.

引用

页码：695 / 698

页数：4

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