Search for colour reconnection effects in e+e- → W+W- → hadrons through particle-flow studies at LEP

Search for colour reconnection effects in e+e- → W+W- → hadrons through particle-flow studies at LEP
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通过 LEP 的粒子流研究寻找 e+e- → W+W- → 强子中的颜色重联效应

DOI:
10.1016/s0370-2693(03)00490-8
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发表时间:
2003
期刊:
影响因子:
4.4
通讯作者:
M. Zöller
M. Zöller
中科院分区:
物理与天体物理2区
文献类型:
--
作者:
P. Achard;O. Adriani;M. Aguilar;J. Alcaraz;G. Alemanni;J. Allaby;A. Aloisio;M. Alviggi;H. Anderhub;V. Andreev;F. Anselmo;A. Arefiev;T. Azemoon;T. Aziz;P. Bagnaia;A. Bajo;G. Baksay;L. Baksay;S. Baldew;S. Banerjee;S. Banerjee;A. Barczyk;R. Barillère;P. Bartalini;M. Basile;N. Batalova;R. Battiston;A. Bay;F. Becattini;U. Becker;F. Behner;L. Bellucci;R. Berbeco;J. Berdugo;P. Bergés;B. Bertucci;B. Betev;M. Biasini;M. Biglietti;A. Biland;J. Blaising;S. Blyth;G. Bobbink;A. Böhm;L. Boldizsár;B. Borgia;S. Bottai;D. Bourilkov;M. Bourquin;S. Braccini;J. Branson;F. Brochu;J. Burger;W. Burger;X. Cai;M. Capell;G. Romeo;G. Carlino;A. Cartacci;J. Casaus;F. Cavallari;N. Cavallo;C. Cecchi;M. Cerrada;M. Chamizo;Yu;M. Chemarin;A. Chen;G. Chen;Geng Chen;H. Chen;H. Chen;G. Chiefari;L. Cifarelli;F. Cindolo;I. Clare;R. Clare;G. Coignet;Nicolas Produit;S. Costantini;B. Cruz;S. Cucciarelli;J. V. Dalen;R. Asmundis;P. Déglon;J. Debreczeni;A. Dégre;K. Dehmelt;K. Deiters;D. Volpe;E. Delmeire;P. Denes;F. Denotaristefani;A. Salvo;M. Diemoz;M. Dierckxsens;C. Dionisi;M. Dittmar;A. Doria;M. Dova;D. Duchesneau;M. Duda;B. Echenard;A. Eline;A. Hage;H. Mamouni;A. Engler;F. Eppling;P. Extermann;M. Falagán;S. Falciano;A. Favara;J. Fay;O. Fedin;M. Felcini;T. Ferguson;H. Fesefeldt;E. Fiandrini;J. Field;F. Filthaut;P. Fisher;W. Fisher;I. Fisk;G. Forconi;K. Freudenreich;C. Furetta;Y. Galaktionov;S. Ganguli;P. Garcia;M. Gataullin;S. Gentile;S. Giagu;Z. Gong;G. Grenier;O. Grimm;M. Gruenewald;M. Guida;R. V. Gulik;V. Gupta;A. Gurtu;L. Gutay;D. Haas;R. Hakobyan;D. Hatzifotiadou;T. Hebbeker;A. Hervé;J. Hirschfelder;H. Hofer;M. Hohlmann;G. Holzner;S. Hou;Y. Hu;B. Jin;L. Jones;P. Jong;I. Josa;D. Käfer;M. Kaur;M. Kienzle;J. Kim;J. Kirkby;W. Kittel;A. Klimentov;A. König;M. Kopal;V. Koutsenko;M. Kräber;R. Kraemer;A. Krüger;A. Kunin;P. Guevara;I. Laktineh;G. Landi;M. Lebeau;A. Lebedev;P. Lebrun;P. Lecomte;P. Lecoq;P. Coultre;J. Goff;R. Leiste;M. Levtchenko;P. Levtchenko;C. Li;S. Likhoded;Chih;W. Lin;F. Linde;L. Lista;Z. Liu;W. Lohmann;E. Longo;Y. Lu;C. Luci;L. Luminari;W. Lustermann;W. Ma;L. Malgeri;A. Malinin;C. Mañá;J. Mans;J. Martin;F. Marzano;K. Mazumdar;R. Mcneil;S. Mele;L. Merola;M. Meschini;W. Metzger;A. Mihul;H. Milcent;G. Mirabelli;J. Mnich;G. Mohanty;G. Muanza;A. Muijs;B. Musicar;M. Musy;S. Nagy;S. Natale;M. Napolitano;F. Nessi;H. Newman;A. Nisati;H. Nowak;R. Ofierzynski;G. Organtini;I. Pál;C. Palomares;P. Paolucci;R. Paramatti;G. Passaleva;S. Patricelli;T. Paul;M. Pauluzzi;C. Paus;F. Pauss;M. Pedace;S. Pensotti;D. Perret;B. Petersen;D. Piccolo;F. Pierella;M. Pioppi;P. Piroué;E. Pistolesi;V. Plyaskin;M. Pohl;Nicolas Produit;J. Pothier;D. Prokofiev;J. Quartieri;G. Rahal;M. Rahaman;P. Raics;N. Raja;R. Ramelli;P. Rancoita;R. Ranieri;A. Raspereza;P. Razis;D. Ren;M. Rescigno;S. Reucroft;S. Riemann;K. Riles;B. Roe;L. Romero;A. Rosca;S. Rosier;S. Roth;C. Rosenbleck;J. Rubio;G. Ruggiero;H. Rykaczewski;A. Sakharov;S. Saremi;S. Sarkar;J. Salicio;E. Sánchez;C. Schäfer;V. Schegelsky;H. Schopper;D. Schotanus;C. Sciacca;L. Servoli;S. Shevchenko;N. Shivarov;V. Shoutko;E. Shumilov;A. Shvorob;D. Son;C. Souga;P. Spillantini;M. Steuer;D. Stickland;B. Stoyanov;A. Straessner;K. Sudhakar;G. Sultanov;L. Sun;S. Sushkov;H. Suter;J. Swain;Z. Szillasi;X. Tang;P. Tarján;L. Tauscher;L. Taylor;B. Tellili;D. Teyssier;C. Timmermans;S. Ting;S. Ting;S. Tonwar;J. Toth;C. Tully;K. Tung;J. Ulbricht;E. Valente;R. T. Walle;R. Vasquez;V. Veszpremi;G. Vesztergombi;I. Vetlitsky;D. Vicinanza;G. Viertel;S. Villa;Nicolas Produit;S. Vlachos;I. Vodopianov;H. Vogel;H. Vogt;I. Vorobiev;A. Vorobyov;M. Wadhwa;Q. Wang;X. Wang;Zheng Wang;M. Weber;P. Wienemann;H. Wilkens;S. Wynhoff;L. Xia;Z. Xu;J. Yamamoto;B. Yang;C. Yang;H. Yang;Mingming Yang;S. Yeh;A. Zalite;Y. Zalite;Zhihua Zhang;J. Zhao;G. Zhu;R. Zhu;H. Zhuang;A. Zichichi;B. Zimmermann;M. Zöller

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在强子衰变的W对的颜色重联效应的搜索进行与L3检测器的质心能量在189和209 GeV之间。分析的基础上的射流与相同的W玻色子和两个不同的W玻色子在qq <$qq <$事件之间的粒子流的研究。在不同的喷流区域的粒子产率的比率被发现是敏感的颜色重联效应实施的一些强子化模型。将数据与有和没有这种影响的不同模型进行比较。排除了颜色重连的极端情况。
A search for colour reconnection effects in hadronic decays of W pairs is performed with the L3 detector at centre-of-mass energies between 189 and 209 GeV. The analysis is based on the study of the particle flow between jets associated to the same W boson and between two different W bosons in q q ̄ q q ̄ events. The ratio of particle yields in the different interjet regions is found to be sensitive to colour reconnection effects implemented in some hadronization models. The data are compared to different models with and without such effects. An extreme scenario of colour reconnection is ruled out.