Measurement of open beauty production at HERA in the D ∗ μ final state ZEUS Collaboration
Measurement of open beauty production at HERA in the D ∗ μ final state ZEUS Collaboration
复制标题
HERA 开放美容生产在 D*μ 最终状态下的测量 ZEUS 协作
DOI：
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发表时间：
2006
期刊：
影响因子：
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通讯作者：
K. Tokushuku
中科院分区：
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作者：
A. Kotański;W. S. lomiński;U. Behrens;A. Bonato;K. Borras;N. Coppola;J. Fourletova;A. Geiser;D. Gladkov;P. Göttlicher;I. Gregor;T. Haas;W. Hain;C. Horn;B. Kahle;U. Kötz;H. Kowalski;E. Lobodzinska;B. Löhr;R. Mankel;I. Melzer;A. Montanari;D. Notz;A. Nuncio;R. Santamarta;U. Schneekloth;A. Spiridonov;H. Stadie;U. Stösslein;D. Szuba;J. Szuba;T. Theedt;G. Wolf;K. Wrona;C. Youngman;W. Zeuner;A. Bamberger;D. Dobur;F. Karstens;N. Vlasov;W. Dunne;J. Ferrando;D. Saxon;K. Nagano;K. Tokushuku
最终状态下具有 D 和 μ 子的美夸克的产生已使用 HERA 的 ZEUS 探测器使用 114 pb 的积分光度进行了测量。 μ 介子和 D 介子的低横向动量阈值使得美容产生的测量比以前的测量更接近生产阈值。使用 μ 介子相对于 D 介子的电荷相关性和角度分布来提取美丽信号。用于照片制作和深度非弹性散射的横截面略高于次领先级 QCD 预测，但与之兼容，并且与其他测量兼容。 ZEUS 合作 S. Chekanov、M. Derrick、S. Magill、S. Miglioranzi、B. Musgrave、D. Nicholas、J. Repond、R. Yoshida 阿贡国家实验室，阿贡，伊利诺伊州 60439-4815，美国 n M.C.K.马丁利·安德鲁斯大学，Berrien Springs，密歇根州 49104-0380，美国 N. Pavel，A.G. Yagües Molina 柏林洪堡大学物理学研究所，德国柏林 S. Antonelli、P. Antonioli、G. Bari、M. Basile、L. Bellagamba、M. Bindi、D. Boscherini、A. Bruni、 G. Bruni、L. Cifarelli、F. Cindolo、A. Contin、M. Corradi、S. De Pasquale、G. Iacobucci、A. Margotti、R. Nania、A. Polini、L. Rinaldi、G. Sartorelli、A. Zichichi 大学和 INFN Bologna，博洛尼亚，意大利 e G. Aghuzumtsyan、D. Bartsch、I. Brock、S. Goers， H.哈特曼，E.希尔格，H.-P。雅各布 (Jakob)，M.荣斯特 (Jüngst)，O.M. Kind, E. Paul, J. Rautenberg, R. Renner, U. Samson, V. Schönberg, M. Wang, M. Wlasenko 德国波恩大学物理研究所 b N.H. Brook, G.P. Heath, J.D. Morris, T. Namsoo H.H. Wills 物理实验室，布里斯托大学，英国布里斯托尔 m M. Capua, S. Fazio, A. Mastroberardino, M. Schioppa, G. Susinno, E. Tassi 卡拉布里亚大学物理系和 INFN，意大利科森扎 e J.Y.金，K.J. Ma Chonnam 国立大学，韩国光州 g Z.A.易卜拉欣 (Ibrahim)，B. 卡马鲁丁 (Kamaluddin)，W.A.T. Wan Abdullah Jabatan Fizik, Universitimalea, 50603 Kuala Lumpur, Malaysia r Y. Ning, Z. Ren, F. Sciulli Nevis Laboratories, Columbia University, Irvington on Hudson, New York 10027 o J. Chwastowski, A. Eskreys, J. Figiel, A. Galas, M. Gil, K. Olkiewicz, P. Stopa, L. Zawiejski Henryk Niewodniczanski 波兰科学院核物理研究所，克拉科夫，波兰 i L. Adamczyk、T. Bo ld、I. Grabowska-Bo ld、D. Kisielewska、J. Lukasik、M. Przybycień、L. Suszycki AGH 科技大学物理与应用计算机科学学院，克拉科夫，波兰
The production of beauty quarks with a D and a muon in the final state has been measured with the ZEUS detector at HERA using an integrated luminosity of 114 pb. Low transverse-momentum thresholds for the muon and D meson allow a measurement of beauty production closer to the production threshold than previous measurements. The beauty signal was extracted using the charge correlations and angular distributions of the muon with respect to the D meson. Cross sections for photoproduction and deep inelastic scattering are somewhat higher than, but compatible with, next-to-leading-order QCD predictions, and compatible with other measurements. The ZEUS Collaboration S. Chekanov, M. Derrick, S. Magill, S. Miglioranzi, B. Musgrave, D. Nicholass, J. Repond, R. Yoshida Argonne National Laboratory, Argonne, Illinois 60439-4815, USA n M.C.K. Mattingly Andrews University, Berrien Springs, Michigan 49104-0380, USA N. Pavel , A.G. Yagües Molina Institut für Physik der Humboldt-Universität zu Berlin, Berlin, Germany S. Antonelli, P. Antonioli, G. Bari, M. Basile, L. Bellagamba, M. Bindi, D. Boscherini, A. Bruni, G. Bruni, L. Cifarelli, F. Cindolo, A. Contin, M. Corradi, S. De Pasquale, G. Iacobucci, A. Margotti, R. Nania, A. Polini, L. Rinaldi, G. Sartorelli, A. Zichichi University and INFN Bologna, Bologna, Italy e G. Aghuzumtsyan, D. Bartsch, I. Brock, S. Goers, H. Hartmann, E. Hilger, H.-P. Jakob, M. Jüngst, O.M. Kind, E. Paul, J. Rautenberg, R. Renner, U. Samson, V. Schönberg, M. Wang, M. Wlasenko Physikalisches Institut der Universität Bonn, Bonn, Germany b N.H. Brook, G.P. Heath, J.D. Morris, T. Namsoo H.H. Wills Physics Laboratory, University of Bristol, Bristol, United Kingdom m M. Capua, S. Fazio, A. Mastroberardino, M. Schioppa, G. Susinno, E. Tassi Calabria University, Physics Department and INFN, Cosenza, Italy e J.Y. Kim, K.J. Ma Chonnam National University, Kwangju, South Korea g Z.A. Ibrahim, B. Kamaluddin, W.A.T. Wan Abdullah Jabatan Fizik, Universiti Malaya, 50603 Kuala Lumpur, Malaysia r Y. Ning, Z. Ren, F. Sciulli Nevis Laboratories, Columbia University, Irvington on Hudson, New York 10027 o J. Chwastowski, A. Eskreys, J. Figiel, A. Galas, M. Gil, K. Olkiewicz, P. Stopa, L. Zawiejski The Henryk Niewodniczanski Institute of Nuclear Physics, Polish Academy of Sciences, Cracow, Poland i L. Adamczyk, T. Bo ld, I. Grabowska-Bo ld, D. Kisielewska, J. Lukasik, M. Przybycień, L. Suszycki Faculty of Physics and Applied Computer Science, AGH-University of Science and Technology, Cracow, Poland p