Measurement of the production cross-section of positive pions in p-Al collisions at 12.9 GeV/c

被引：78

作者：

Catanesi, MG

Muciaccia, MT

Radicioni, E

Simone, S

Edgecock, R

Ellis, M

Robbins, S

Soler, FJP

Gössling, C

Mass, M

Bunyatov, S

Chukanov, A

Dedovitch, D

Elagin, A

Gostkin, M

Guskov, A

Khartchenko, D

Klimov, O

Krasnoperov, A

Kustov, D

Nikolaev, K

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

Linssen, L

Panman, J

Papadopoulos, I

Pasternak, J

Tcherniaev, E

Tsukerman, I

Veenhof, R

Wiebusch, C

Zucchelli, P

Blondel, A

Borghi, S

Campanelli, M

Cervera-Villanueva, A

机构：

[1] CSIC, Inst Fis Corpuscular, IFIC, Valencia, Spain

[2] Univ Valencia, Valencia, Spain

[3] Univ Bari, Bari, Italy

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

[5] Rutherford Appleton Lab, Didcot OX11 0QX, Oxon, England

[6] Univ Dortmund, Inst Phys, D-4600 Dortmund, Germany

[7] JINR, Dubna, Russia

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

[9] Ist Nazl Fis Nucl, Sez Ferrara, I-44100 Ferrara, Italy

[10] CERN, Geneva, Switzerland

[11] Univ Geneva, Sect Phys, Geneva, Switzerland

[12] Kyoto Univ, Kyoto, Japan

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

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

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

[16] Univ Milan, Milan, Italy

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

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

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

[20] Univ Naples Federico II, Naples, Italy

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

[22] Columbia Univ, New York, NY USA

[23] Univ Oxford, Nucl & Astrophys Lab, Oxford, England

[24] Univ Padua, Padua, Italy

[25] Ist Nazl Fis Nucl, Sez Padua, Padua, Italy

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

[27] Univ Paris 07, Paris, France

[28] Inst High Energy Phys, Protvino, Russia

[29] Univ Roma La Sapienza, Rome, Italy

[30] Ist Nazl Fis Nucl, Sez Rome, Rome, Italy

[31] Univ Rome, Rome, Italy

[32] Ist Nazl Fis Nucl, Sez Roma 3, Rome, Italy

[33] Univ Sheffield, Dept Phys, Sheffield, S Yorkshire, England

[34] St Kliment Ohridski Univ, Fac Phys, Sofia, Bulgaria

[35] Bulgarian Acad Sci, Inst Nucl Res & Nucl Energy, Sofia, Bulgaria

[36] Univ Trieste, Trieste, Italy

[37] Ist Nazl Fis Nucl, Sez Trieste, Trieste, Italy

[38] Natl Lab High Energy Phys, KEK, Tsukuba, Ibaraki 305, Japan

来源：

NUCLEAR PHYSICS B | 2006年 / 732卷 / 1-2期

关键词：

D O I：

10.1016/j.nuclphysb.2005.10.016

中图分类号：

O412 [相对论、场论]; O572.2 [粒子物理学];

学科分类号：

摘要：

A precision measurement of the double-differential production cross-section, d(2)sigma(pi+)/dpd Omega for pions of positive charge. performed in the HARP experiment is presented. The incident particles are protons of 12.9 GeV/c momentum impinging on an aluminium target of 5% nuclear interaction length. The measurement of this cross-section has a direct application to the calculation of the neutrino flux of the K2K experiment. After cuts, 210000 secondary tracks reconstructed in the forward spectrometer were used in this analysis. The results are given for secondaries within a momentum range from 0.75 to 6.5 GeV/c. and within an angular range from 30 mrad to 2 10 mrad. The absolute normalization was performed using prescaled beam triggers counting protons on target. The overall scale of the cross-section is known to better than 6%. while the average point-to-point error is 8.2%. (c) 2005 Elsevier B.V. All rights reserved.

引用

页码：1 / 45

页数：45

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