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M G Catanesi,
M T Muciaccia,
E Radicioni,
S Simone,
R Edgecock,
M. Ellis, S Robbins,
F J P Soler,
C Gössling,
M Mass, [......],
G Giannini,
G. Santin,
Y. Hayato,
A Ichikawa,
T Kobayashi,
J Burguet-Castell,
J J Gómez-Cadenas,
P Novella,
M. Sorel,
A Tornero
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M.G. Catanesi,
E. Radicioni,
R. Edgecock,
M. Ellis, S. Robbins,
F.J.P. Soler,
C. Gößling,
S. Bunyatov,
A. Krasnoperov,
B. Popov, [......],
G. Giannini,
G. Santin,
J. Burguet-Castell,
A. Cervera-Villanueva,
J.J. Gómez-Cadenas,
J. Martín-Albo,
P. Novella,
M. Sorel,
A. Tornero,
The HARP Collaboration
[show abstract]
[hide abstract]
ABSTRACT: A measurement of the double-differential cross-section for the production of charged pions in proton–tantalum collisions emitted
at large angles from the incoming beam direction is presented. The data were taken in 2002 with the HARP detector in the T9
beam line of the CERN PS. The pions were produced by proton beams in a momentum range from 3GeV/c to 12GeV/c hitting a tantalum target with a thickness of 5% of a nuclear interaction length. The angular and momentum range covered
by the experiment (100MeV/c ≤p< 800MeV/c and 0.35rad ≤θ< 2.15rad) is of particular importance for the design of a neutrino factory. The produced particles were
detected using a small-radius cylindrical time projection chamber (TPC) placed in a solenoidal magnet. Track recognition,
momentum determination and particle identification were all performed based on the measurements made with the TPC. An elaborate
system of detectors in the beam line ensured the identification of the incident particles. Results are shown for the double-differential
cross-sections d2σ/dpdθ at four incident proton beam momenta (3GeV/c, 5GeV/c, 8GeV/c and 12GeV/c). In addition, the pion yields within the acceptance of typical neutrino factory designs are shown as a function of beam
momentum. The measurement of these yields within a single experiment eliminates most systematic errors in the comparison between
rates at different beam momenta and between positive and negative pion production.
European Physical Journal C 04/2012; 51(4):787-824. · 3.63 Impact Factor
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M.G. Catanesi,
E. Radicioni,
R. Edgecock,
M. Ellis, S. Robbins,
F.J.P. Soler,
C. Gößling,
S. Bunyatov,
A. Krasnoperov,
B. Popov, [......],
G. Giannini,
G. Santin,
J. Burguet-Castell,
A. Cervera-Villanueva,
J.J. Gómez-Cadenas,
J. Martín-Albo,
P. Novella,
M. Sorel,
A. Tornero,
The HARP Collaboration
[show abstract]
[hide abstract]
ABSTRACT: A measurement of the double-differential π± production cross-section in proton–carbon, proton–copper and proton–tin collisions in the range of pion momentum 100MeV/c≤p<800MeV/c and angle 0.35rad≤θ<2.15rad is presented. The data were taken with the HARP detector in the T9 beam line of the CERN PS.
The pions were produced by proton beams in a momentum range from 3GeV/c to 12GeV/c hitting a target with a thickness of 5% of a nuclear interaction length. The tracking and identification of the produced
particles was done using a small-radius cylindrical time projection chamber (TPC) placed in a solenoidal magnet. An elaborate
system of detectors in the beam line ensured the identification of the incident particles. Results are shown for the double-differential
cross-sections d2σ/dpdθ at four incident proton beam momenta (3GeV/c, 5GeV/c, 8GeV/c and 12GeV/c).
European Physical Journal C 04/2012; 53(2):177-204. · 3.63 Impact Factor
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The HARP Collaboration M.G. Catanesi,
E. Radicioni,
R. Edgecock,
M. Ellis, S. Robbins,
F.J.P. Soler,
C. Gößling,
S. Bunyatov,
G. Chelkov,
D. Dedovitch, [......],
P. Chimenti,
G. Giannini,
G. Santin,
J. Burguet-Castell,
A. Cervera-Villanueva,
J.J. Gómez-Cadenas,
J. Martín-Albo,
P. Novella,
M. Sorel,
A. Tornero
[show abstract]
[hide abstract]
ABSTRACT: The double-differential production cross-section of positive pions, d2sp+/d pdWd^2\sigma^{\pi^{+}}/d pd\Omega, measured in the HARP experiment is presented. The incident particles are 8.9GeV/c protons directed onto a beryllium target with a thickness of 5% of a nuclear interaction length. The measured cross-section
has a direct impact on the prediction of neutrino fluxes for the MiniBooNE and SciBooNE experiments at Fermilab. After cuts,
13million protons on target produced about 96000 reconstructed secondary tracks which were used in this analysis. Cross-section
results are presented in the kinematic range 0.75 GeV/c≤pπ≤ 6.5 GeV/c and 30 mrad≤θπ≤ 210 mrad in the laboratory frame.
European Physical Journal C 01/2007; 52(1):29-53. · 3.63 Impact Factor
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MG Catanesi,
MT Muciaccia,
E Radicioni,
P Righini,
S Simone,
C Gossling,
A Grossheim,
M Mass,
K Zuber,
I Boyko, [......],
I. Rusinov,
R. Tsenov,
M Apollonio,
G Giannini,
G. Santin,
J Burguet,
A. Cervera-Villanueva,
JJ Gomez-Cadenas,
MC Gonzalez-Garcia,
G Vidal-Sitjes
-
[show abstract]
[hide abstract]
ABSTRACT: A time-of-flight system based on 46 multigap glass resistive plate chambers has operated for 2 years in the HARP experiment at the CERN PS. The system covers an area of 10 m2 and comprises 368 readout channels. Systematic checks of the RPC performance are presented as well as preliminary results on its particle identification capabilities.
Nuclear Instruments and Methods in Physics Research Section A: Accelerators, Spectrometers, Detectors and Associated Equipment.
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M G Catanesi,
M T Muciaccia,
E Radicioni,
S Simone,
R Edgecock,
M. Ellis, S Robbins,
F J P Soler,
C Gössling,
M Mass, [......],
G Giannini,
G. Santin,
Y. Hayato,
A Ichikawa,
T Kobayashi,
J Burguet-Castell,
J J Gómez-Cadenas,
P Novella,
M. Sorel,
A Tornero
[show abstract]
[hide abstract]
ABSTRACT: A precision measurement of the double-differential production cross-section, ${{d^2 \sigma^{\pi^+}}}/{{d p d\Omega}}$, 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 GeV/c to 6.5 GeV/c, and within an angular range from 30 mrad to 210 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%.
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MG Catanesi,
E Radicioni,
R Edgecock,
M. Ellis, S Robbins,
FJP Soler,
C Gossling,
S. Bunyatov,
G Chelkov,
D Dedovitch, [......],
A Guskov,
D. Khartchenko,
A. Krasnoperov,
Z. Kroumchtein,
Y. Nefedov,
B. Popov,
V Serdiouk,
V. Tereshchenko,
A Zhemchugov,
E Di Capua
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M G Catanesi,
V. Ammosov,
M Apollonio,
P Arce,
A. Artamonov,
A Bagulya,
G Barr,
A Blondel,
F. Bobisut,
M Bogomilov, [......],
R. Tsenov,
I Tsukerman,
F. Vannucci,
R Veenhof,
G Vidal-Sitjes,
C Wiebusch,
V. Zaets,
A Zhemchugov,
K Zuber,
P Zucchelli
[show abstract]
[hide abstract]
ABSTRACT: The double-differential production cross-section of positive pions, $d^2\sigma^{\pi^{+}}/dpd\Omega$, measured in the HARP experiment is presented. The incident particles are 8.9 \GeVc protons directed onto a beryllium target with a nominal thickness of 5% of a nuclear interaction length. The measured cross-section has a direct impact on the prediction of neutrino fluxes for the MiniBooNE and SciBooNE experiments at Fermilab. After cuts, 13 million protons on target produced about 96,000 reconstructable secondary tracks which were used in this analysis. Cross-section results are presented in the kinematic range 0.75~${GeV}/c$ $\leq p_{\pi} \leq$ 6.5 ${GeV}/c$ and 30 mrad $\leq \theta_{\pi} \leq$ 210 mrad in the laboratory frame.
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M G Catanesi,
E Radicioni,
R Edgecock,
M. Ellis, S Robbins,
F J P Soler,
C Goling,
S. Bunyatov,
A. Krasnoperov,
B. Popov, [......],
M Apollonio,
P Chimenti,
G Giannini,
G. Santin,
J Burguet-Castell,
Anselmo Cervera Villanueva,
J J Gómez-Cadenas,
J Marten Alb,
P Novella,
M. Sorel
[show abstract]
[hide abstract]
ABSTRACT: The results of the measurements of the double-differential production cross-sections of pions in p-C and $\pi^\pm$-C interactions using the forward spectrometer of the HARP experiment are presented. The incident particles are 12 GeV/c protons and charged pions directed onto a carbon target with a thickness of 5% of a nuclear interaction length. For p-C interactions the analysis is performed using 100035 reconstructed secondary tracks, while the corresponding numbers of tracks for $\pi^-$-C and $\pi^+$-C analyses are 106534 and 10122 respectively. Cross-section results are presented in the kinematic range 0.5 GeV/c $\leq p_{\pi} <$ 8 GeV/c and 30 mrad $\leq \theta_{\pi} <$ 240 mrad in the laboratory frame. The measured cross-sections have a direct impact on the precise calculation of atmospheric neutrino fluxes and on the improved reliability of extensive air shower simulations by reducing the uncertainties of hadronic interaction models in the low energy range.
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M. G. Harp,
E Radicioni,
R Edgecock,
M. Ellis, S Robbins,
F J P Soler,
C Gossling,
S. Bunyatov,
A. Krasnoperov,
B. Popov, [......],
P Chimenti,
G Giannini,
G. Santin,
Jordi Burguet Castell,
Anselmo Cervera Villanueva,
Juan José Gómez Cadenas,
Justo Martín-Albo,
Pau Novella,
Michel Sorel,
Ana María Tornero
[show abstract]
[hide abstract]
ABSTRACT: 38 pages, 31 figures.-- PACS nrs.: 13.75.Cs; 13.85.Ni.-- ISI Article Identifier: 000250869700003.-- ArXiv pre-print available at: http://arxiv.org/abs/0706.1600 Printed version published in Aug 2007. A measurement of the double-differential cross-section for the production of charged pions in proton-tantalum collisions emitted at large angles from the incoming beam direction is presented. The data were taken in 2002 with the HARP detector in the T9 beam line of the CERN PS. The pions were produced by proton beams in a momentum range from 3 GeV/c to 12 CeV/c hitting a tantalum target with a thickness of 5% of a nuclear interaction length. The angular and momentum range covered by the experiment (100 MeV/c ≤ p ≤ 800 MeV/c and 0.35 rad ≤ Θ < 2.15 rad) is of particular importance for the design of a neutrino factory. The produced particles were detected using a small-radius cylindrical time projection chamber (TPC) placed in a solenoidal magnet. Track recognition, momentum determination and particle identification were all performed based on the measurements made with the TPC. An elaborate system of detectors in the beam line ensured the identification of the incident particles. Results are shown for the double-differential cross-sections d(2)σ/dpdΘ at four incident proton beam momenta (3 GeV/c, 5 GeV/c, 8 GeV/c and 12 GeV/c). In addition, the pion yields within the acceptance of typical neutrino factory designs are shown as a function of beam momentum. The measurement of these yields within a single experiment eliminates most systematic errors in the comparison between rates at different beam momenta and between positive and negative pion production. The experiment was made possible by grants from the Institut Interuniversitaire des Sciences Nucléaires and the Interuniversitair Instituut voor Kernwetenschappen (Belgium), Ministerio de Educación y Ciencia, Grant FPA2003-06921-c02-02 and Generalitat Valenciana, grant GV00-054-1, CERN (Geneva, Switzerland), the German Bundesministerium für Bildung und Forschung (Germany), the Istituto Nazionale di Fisica Nucleare (Italy), INR RAS (Moscow) and the Particle Physics and Astronomy Research Council (UK). We gratefully acknowledge their support. This work was supported in part by the Swiss National Science Foundation and the Swiss Agency for Development and Cooperation in the framework of the programme SCOPES – Scientific co-operation between Eastern Europe and Switzerland. Peer reviewed
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MG Catanesi,
E Radicioni,
R Edgecock,
M. Ellis, S Robbins,
FJP Soler,
C Goessling,
S. Bunyatov,
A. Krasnoperov,
B. Popov, [......],
P Chimenti,
G Giannini,
G. Santin,
J Burguet-Castell,
A. Cervera-Villanueva,
JJ Gomez-Cadenas,
J. Martin-Albo,
P Novella,
M. Sorel,
A Tornero
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M G Catanesi,
E Radicioni,
R Edgecock,
M. Ellis, S Robbins,
F J P Soler,
C Gossling,
S. Bunyatov,
G Chelkov,
D Dedovitch, [......],
R Schroeter,
R. Engel,
C. Meurer,
I Kato,
U Gastaldi,
G B Mills,
J. S. Graulich,
G. Gregoire,
M Bonesini,
A De Min
[show abstract]
[hide abstract]
ABSTRACT: 25 pages, 21 figures.-- ISI Article Identifier: 000249019600003.-- ArXiv pre-print available at: http://arxiv.org/abs/hep-ex/0702024 Printed version published in Sep 2007. The double-differential production cross-section of positive pions, d(2)σ(π+)/dpdΩ, measured in the HARP experiment is presented. The incident particles are 8.9 GeV/c protons directed onto a beryllium target with a thickness of 5% of a nuclear interaction length. The measured cross-section has a direct impact on the prediction of neutrino fluxes for the MiniBooNE and SciBooNE experiments at Fermilab. After cuts, 13 million protons on target produced about 96000 reconstructed secondary tracks which were used in this analysis. Cross-section results are presented in the kinematic range 0.75 GeV/c ≤ p(π) ≤ 6.5 GeV/c and 30 mrad ≤ Θ(π) ≤ 210 mrad in the laboratory frame. The experiment was made possible by grants from the Institut Interuniversitaire des Sciences Nucléaires and the Interuniversitair Instituut voor Kernwetenschappen (Belgium), Ministerio de Educación y Ciencia, Grant FPA2003-06921-c02-02 and Generalitat Valenciana, grant GV00-054-1, CERN (Geneva, Switzerland), the German Bundesministerium für Bildung und Forschung (Germany), the Istituto Nazionale di Fisica Nucleare (Italy), INR RAS (Moscow) and the Particle Physics and Astronomy Research Council (UK). We gratefully acknowledge their support. Peer reviewed
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MG Catanesi,
E Radicioni,
R Edgecock,
M. Ellis, S Robbins,
FJP Soler,
C Gossling,
S. Bunyatov,
A. Krasnoperov,
B. Popov, [......],
M Apollonio,
P Chimenti,
G Giannini,
G. Santin,
J Burguet-Castell,
A. Cervera-Villanueva,
JJ Gomez-Cadenas,
J. Martin-Albo,
P Novella,
M. Sorel
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M G Catanesi,
E Radicioni,
R Edgecock,
M. Ellis, S Robbins,
F J P Soler,
C Gossling,
S. Bunyatov,
G Chelkov,
A. Chukanov, [......],
D. Gibin,
A. Guglielmi,
M. Laveder,
A. Menegolli,
M. Mezzetto,
J Dumarchez,
F. Vannucci,
V. Ammosov,
V. Koreshev,
D. Orestanov
[show abstract]
[hide abstract]
ABSTRACT: 23 pages, 26 figures.-- PACS nrs.: 95.55.Vj; 28.85.+c; 07.75.+h; 07.05.Kf; 14.40.Aq.-- ISI Article Identifier: 000245514100044 Printed version published on Mar 11, 2007. 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%. We gratefully acknowledge the help and support of the PS beam staff and of the numerous technical collaborators who contributed to the detector design, construction, commissioning, and operation. The experiment was made possible by grants from the Institut Interuniversitaire des Sciences Nucléaires (Belgium), Ministerio de Educación y Ciencia, Grant FPA2003-06921-c02-02 and Generalitat Valenciana, grant GV00-054-1, CERN (Geneva, Switzerland), the German Bundesministerium für Bildung und Forschung (Germany), the Istituto Nazionale di Fisica Nucleare (Italy), INR RAS (Moscow), and the Particle Physics and Astronomy Research Council (UK). We gratefully acknowledge their support. Peer reviewed
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M G Catanesi,
M T Muciaccia,
E Radicioni,
S Simone,
R Edgecock,
M. Ellis, S Robbins,
F J P Soler,
C Gossling,
M Mass, [......],
V. Tereshchenko,
V. Carassiti,
E Di Capua,
F. Evangelisti,
G Vidal-Sitjes,
A. Artamonov,
Pedro Arce,
R. Brocard,
G. Decreuse,
B Friend
[show abstract]
[hide abstract]
ABSTRACT: 35 pages, 37 figures.-- PACS nr.: 95.55.Vj.-- ISI Article Identifier: 000244576000001.-- Available online 10 November 2006. HARP is a high-statistics, large solid angle experiment to measure hadron production using proton and pion beams with momenta between 1.5 and 15 GeV/c impinging on many different solid and liquid targets from low to high Z. The experiment, located in the T9 beam of the CERN PS, took data in 2001 and 2002. For the measurement of momenta of produced particles and for the identification of particle types, the experiment includes a large-angle spectrometer, based on a Time Projection Chamber and a system of Resistive Plate Chambers, and a forward spectrometer equipped with a set of large drift chambers, a threshold Cherenkov detector, a time-of-flight wall and an electromagnetic calorimeter. The large angle system uses a solenoidal magnet, while the forward spectrometer is based on a dipole magnet. Redundancy in particle identification has been sought, to enable the cross-calibration of efficiencies and to obtain a few percent overall accuracy in the cross-section measurements. Detector construction, operation and initial physics performances are reported. In addition, the full chain for data recording and analysis, from trigger to the software framework, is described. The experiment was made possible by grants from the Institut Interuniversitaire des Sciences Nucléaires (Belgium), Ministerio de Educación y Ciencia, Grant FPA2003-06921-c02-02 and Generalitat Valenciana, grant GV00-054-1, CERN (Geneva, Switzerland), the German Bundesministerium für Bildung und Forschung (Germany), the Istituto Nazionale di Fisica Nucleare (Italy), Joint Institute for Nuclear Research (Dubna), INR RAS (Moscow) and the Particle Physics and Astronomy Research Council (UK). We gratefully acknowledge their support. Peer reviewed
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M.G. Catanesi,
E. Radicioni,
R. Edgecock,
M. Ellis, S. Robbins,
F.J.P. Soler,
C. Gößling,
S. Bunyatov,
A. Krasnoperov,
B. Popov, [......],
M. Apollonio,
P. Chimenti,
G. Giannini,
G. Santin,
J. Burguet-Castell,
A. Cervera-Villanueva,
J.J. Gómez-Cadenas,
J. Martín-Albo,
P. Novella,
M. Sorel
[show abstract]
[hide abstract]
ABSTRACT: The results of the measurements of the double-differential production cross-sections of pions, , in p–C and π±–C interactions using the forward spectrometer of the HARP experiment are presented. The incident particles are 12 GeV/c protons and charged pions directed onto a carbon target with a thickness of 5% of a nuclear interaction length. For p–C interactions the analysis is performed using 100,035 reconstructed secondary tracks, while the corresponding numbers of tracks for π-–C and π+–C analyses are 106,534 and 10,122, respectively. Cross-section results are presented in the kinematic range and in the laboratory frame. The measured cross-sections have a direct impact on the precise calculation of atmospheric neutrino fluxes and on the improved reliability of extensive air shower simulations by reducing the uncertainties of hadronic interaction models in the low energy range.
Astroparticle Physics.
