Large-angle production of charged pions by 3 GeV/c–12 GeV/c protons on carbon, copper and tin targets
Large-angle production of charged pions by 3 GeV/c–12 GeV/c protons on carbon, copper and tin targets
复制标题
3 GeV/c–12 GeV/c 质子在碳、铜和锡靶材上大角度产生带电π介子
DOI：
10.1140/epjc/s10052-007-0475-4
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发表时间：
2007
期刊：
影响因子：
--
通讯作者：
A. Tornero
中科院分区：
文献类型：
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作者：
M. Catanesi;E. Radicioni;R. Edgecock;M. Ellis;S. Robbins;F. Soler;F. Soler;C. Gössling;S. Bunyatov;A. Krasnoperov;B. Popov;V. Serdiouk;V. Tereschenko;E. Capua;G. Vidal;P. Arce;P. Arce;A. Artamonov;A. Artamonov;S. Giani;S. Gilardoni;P. Gorbunov;P. Gorbunov;A. Grant;A. Grossheim;A. Grossheim;P. Gruber;P. Gruber;Vladimir Ivanchenko;Vladimir Ivanchenko;A. Kayis;A. Kayis;J. Panman;I. Papadopoulos;J. Pasternak;E. Tcherniaev;I. Tsukerman;I. Tsukerman;R. Veenhof;C. Wiebusch;C. Wiebusch;P. Zucchelli;A. Blondel;S. Borghi;S. Borghi;M. Campanelli;M. Morone;M. Morone;G. Prior;R. Schroeter;R. Engel;C. Meurer;I. Kato;I. Kato;U. Gastaldi;G. Mills;J. Graulich;J. Graulich;G. Grégoire;M. Kirsanov;M. Bonesini;F. Ferri;M. Paganoni;F. Paleari;A. Bagulya;V. Grichine;N. Polukhina;V. Palladino;L. Coney;D. Schmitz;G. Barr;A. Santo;C. Pattison;K. Zuber;K. Zuber;F. Bobisut;D. Gibin;A. Guglielmi;M. Mezzetto;J. Dumarchez;F. Vannucci;U. Dore;D. Orestano;F. Pastore;A. Tonazzo;L. Tortora;C. Booth;C. Buttar;P. Hodgson;L. Howlett;M. Bogomilov;M. Chizhov;D. Kolev;R. Tsenov;S. Piperov;P. Temnikov;M. Apollonio;P. Chimenti;G. Giannini;G. Santin;J. Burguet;A. Cervera;J. Gómez;J. Martín;P. Novella;M. Sorel;A. Tornero
提出了在 π 动量 100 MeV/c≤p<800 MeV/c 和角度 0.35 rad≤θ<2.15 rad 范围内质子-碳、质子-铜和质子-锡碰撞中双微分 π± 产生截面的测量。数据是使用 CERN PS 的 T9 光束线中的 HARP 探测器获取的。介子是由动量范围为 3 GeV/c 至 12 GeV/c 的质子束击中厚度为核相互作用长度 5% 的目标而产生的。使用放置在螺线管磁铁中的小半径圆柱形时间投影室（TPC）来跟踪和识别产生的颗粒。光束线中的精密探测器系统确保了入射粒子的识别。显示了四个入射质子束动量（3 GeV/c、5 GeV/c、8 GeV/c 和 12 GeV/c）下的双微分横截面 d2σ/dpdθ 的结果。
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 100 MeV/c≤p<800 MeV/c and angle 0.35 rad≤θ<2.15 rad 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 3 GeV/c to 12 GeV/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 (3 GeV/c, 5 GeV/c, 8 GeV/c and 12 GeV/c).