Particle identification algorithms for the HARP forward spectrometer

被引：15

作者：

Catanesi, M. G.

Radicioni, E.

Edgecock, R.

Ellis, M.

Robbins, S.

Soler, F. J. P.

Goessling, C.

Bunyatov, S.

Chelkov, G.

Chukanov, A.

Dedovitch, D.

Gostkin, M.

Guskov, A.

Khartchenko, D.

Klimov, O.

Krasnoperov, A.

Kroumchtein, Z.

Kustov, D.

Nefedov, Y.

Popov, B.

Serdiouk, V.

Tereshchenko, V.

Zhemchugov, A.

Di Capua, E.

Vidal-Sitjes, G.

Artamonov, A.

Arce, P.

Giani, S.

Gilardoni, S.

Gorbunov, P.

Grant, A.

Grossheim, A.

Gruber, P.

Ivanchenko, V.

Kayis-Topaksu, A.

Panman, J.

Papadopoulos, I.

Pasternak, J.

Tcherniaev, E.

Tsukerman, I.

Veenhotf, R.

Wiebusch, C.

Zucchelli, P.

Blondel, A.

Borghi, S.

Campanelli, M.

Cervera-Villanueva, A. ^{[1
]}

Morone, M. C.

Prior, G.

Schroeter, R.

机构：

[1] Univ Bari, Bari, Italy

[2] Ist Nazl Fis Nucl, Sez Bari, I-70126 Bari, Italy

[3] Rutherford Appleton Lab, Chilton, England

[4] Univ Dortmund, Inst Phys, D-44221 Dortmund, Germany

[5] JINR Dubna, Dubna, Russia

[6] Univ Ferrara, I-44100 Ferrara, Italy

[7] Ist Nazl Fis Nucl, Sez Ferrara, Ferrara, Italy

[8] CERN, Geneva, Switzerland

[9] Univ Geneva, Sect Phys, CH-1211 Geneva 4, Switzerland

[10] Kyoto Univ, Kyoto, Japan

[11] Ist Nazl Fis Nucl, Lab Nazl Legnaro, I-35020 Legnaro, Italy

[12] Los Alamos Natl Lab, Los Alamos, NM USA

[13] UCL, Inst Phys Nucl, Louvain, Belgium

[14] Univ Milan, Milan, Italy

[15] Ist Nazl Fis Nucl, Sez Milan, I-20133 Milan, Italy

[16] Russian Acad Sci, Inst Nucl Res, Moscow, Russia

[17] Russian Acad Sci, PN Lebedev Inst Phys, FIAN, Moscow, Russia

[18] Univ Naples Federico II, Naples, Italy

[19] Ist Nazl Fis Nucl, Sez Naples, I-80125 Naples, Italy

[20] Columbia Univ, New York, NY 10027 USA

[21] Univ Oxford, Nucl & Astrophys Lab, Oxford OX1 2JD, England

[22] Univ Padua, Padua, Italy

[23] Ist Nazl Fis Nucl, Sez Padova, Padua, Italy

[24] Univ Paris 06, LPNHE, Paris, France

[25] Univ Paris 07, LPNHE, Paris, France

[26] Inst High Energy Phys, Protvino, Russia

[27] Univ Roma La Sapienza, Rome, Italy

[28] Ist Nazl Fis Nucl, Sez Roma, Rome, Italy

来源：

NUCLEAR INSTRUMENTS & METHODS IN PHYSICS RESEARCH SECTION A-ACCELERATORS SPECTROMETERS DETECTORS AND ASSOCIATED EQUIPMENT | 2007年 / 572卷 / 02期

关键词：

particle identification; threshold Cherenkov; time of flight; hadron production; cross-section;

D O I：

10.1016/j.nima.2006.11.071

中图分类号：

TH7 [仪器、仪表];

学科分类号：

0804 ; 080401 ; 081102 ;

摘要：

The particle identification (PID) methods used for the calculation of secondary pion yields with the HARP forward spectrometer are presented. Information from time of flight and Cherenkov detectors is combined using likelihood techniques. The efficiencies and purities associated with the different PID selection criteria are obtained from the data. For the proton-aluminium interactions at 12.9 GeV/c incident momentum, the PID efficiencies for positive pions are 86% in the momentum range below 2 GeV/c, 92% between 2 and 3 GeV/c and 98% in the momentum range above 3 GeV/c. The purity of the selection is better than 92% for all momenta. Special emphasis has been put on understanding the main error sources. The final PID uncertainty on the pion yield is 3.3%. (c) 2007 Elsevier B.V. All rights reserved.

引用

页码：899 / 921

页数：23

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