TOTEM 的违规情况 (Diffraction at TOTEM)

G. Antchev,P. Aspell,V. Avati,M. G. Bagliesi,V. Berardi,M. Berretti,U. Bottigli,M. Bozzo,E. Brucken,A. Buzzo,F. Cafagna,M. Calicchio,M. G. Catanesi,P. L. Catastini,R. Cecchi,M. A. Ciocci,M. Deile,E. Dimovasili,K. Eggert,V. Eremin,F. Ferro,F. Garcia,S. Giani,V. Greco,J. Heino,T. Hilden,J. Kaspar,J. Kopal,V. Kundrat,K. Kurvinen,S. Lami,G. Latino,R. Lauhakangas,E. Lippmaa,M. Lokajicek,M. Lo Vetere,F. Lucas Rodriguez,M. Macri,G. Magazzu,M. Meucci,S. Minutoli,H. Niewiadomski,E. Noschis,G. Notarnicola,E. Oliveri,F. Oljemark,R. Orava,M. Oriunno,K. Osterberg,P. Palazzi,E. Pedreschi,J. Petajajarvi,M. Quinto,E. Radermacher,E. Radicioni,F. Ravotti,G. Rella,E. Robutti,L. Ropelewski,G. Ruggiero,A. Rummel,H. Saarikko,G. Sanguinetti,A. Santroni,A. Scribano,G. Sette,W. Snoeys,F. Spinella,P. Squillacioti,A. Ster,C. Taylor,A. Trummal,N. Turini,J. Whitmore,J. Wu

from arxiv, 10 pages, 9 figures, contribution to the proceedings of the HERA and the LHC workshop 2007-08

The TOTEM experiment at the LHC measures the total proton-proton cross section with the luminosity-independent method and the elastic proton-proton cross-section over a wide |t|-range. It also performs a comprehensive study of diffraction, spanning from cross-section measurements of individual diffractive processes to the analysis of their event topologies. Hard diffraction will be studied in collaboration with CMS taking advantage of the large common rapidity coverage for charged and neutral particle detection and the large variety of trigger possibilities even at large luminosities. TOTEM will take data under all LHC beam conditions including standard high luminosity runs to maximize its physics reach. This contribution describes the main features of the TOTEM physics programme including measurements to be made in the early LHC runs. In addition, a novel scheme to extend the diffractive proton acceptance for high luminosity runs by installing proton detectors at IP3 is described.

翻译：LHC 的TOTEM实验用光度独立法和弹性质子质子横切剖面测量质子-质子总横截面,测量质子-质子总横截面,范围宽广,还全面研究分解问题,从对个别不同过程的截面测量到分析其事件地形分析,与CMS合作研究硬分解,利用大量常见的充电和中性粒子探测的常见性覆盖以及甚至大范围发光的多种触发可能性。TOTEM将收集所有LHC光束条件下的数据,包括标准的高光度运行,以最大限度地扩大其物理覆盖范围。这一贡献描述了TOTEM物理方案的主要特点,包括在早期LHC运行时进行的测量。此外,还介绍了通过在 IP3 安装质子探测器扩大高发光率运行的diffractive质子接受度的新办法。