Angular multiplicity fluctuations in hadronic Z decays and comparison to QCD models and analytical calculations

被引:15
作者
Acciarri, M
Adriani, O
Aguilar-Benitez, M
Ahlen, S
Alcaraz, J
Alemanni, G
Allaby, J
Aloisio, A
Alviggi, MG
Ambrosi, G
Anderhub, H
Andreev, VP
Angelescu, T
Anselmo, F
Arefiev, A
Azemoon, T
Aziz, T
Bagnaia, P
Baksay, L
Ball, RC
Banerjee, S
Banerjee, S
Banicz, K
Barczyk, A
Barillere, R
Barone, L
Bartalini, P
Baschirotto, A
Basile, M
Battiston, R
Bay, A
Becattini, F
Becker, U
Behner, F
Berdugo, J
Berges, P
Bertucci, B
Betev, BL
Bhattacharya, S
Biasini, M
Biland, A
Bilei, GM
Blaising, JJ
Blyth, SC
Bobbink, GJ
Bock, R
Bohm, A
Boldizsar, L
Borgia, B
Bourilkov, D
机构
[1] Ist Nazl Fis Nucl, Sez Milano, I-20133 Milan, Italy
[2] Rhein Westfal TH Aachen, Inst Phys 1, D-52056 Aachen, Germany
[3] Rhein Westfal TH Aachen, Inst Phys 3, D-52056 Aachen, Germany
[4] Univ Amsterdam, NL-1009 DB Amsterdam, Netherlands
[5] NIKHEF H, Natl Inst High Energy Phys, NL-1009 DB Amsterdam, Netherlands
[6] Univ Michigan, Ann Arbor, MI 48109 USA
[7] CNRS, IN2P3, Lab Annecy Le Vieux Phys Particules, F-74941 Annecy Le Vieux, France
[8] Johns Hopkins Univ, Baltimore, MD 21218 USA
[9] Univ Basel, Inst Phys, CH-4056 Basel, Switzerland
[10] Inst High Energy Phys, Beijing 100039, Peoples R China
[11] Humboldt Univ, D-10099 Berlin, Germany
[12] Univ Bologna, I-40126 Bologna, Italy
[13] INFN, Sez Bologna, I-40126 Bologna, Italy
[14] Tata Inst Fundamental Res, Bombay 400005, Maharashtra, India
[15] Boston Univ, Boston, MA 02215 USA
[16] Northeastern Univ, Boston, MA 02115 USA
[17] Inst Atom Phys, R-76900 Bucharest, Romania
[18] Univ Bucharest, R-76900 Bucharest, Romania
[19] Hungarian Acad Sci, Cent Res Inst Phys, H-1525 Budapest, Hungary
[20] MIT, Cambridge, MA 02139 USA
[21] Univ Florence, I-50125 Florence, Italy
[22] INFN, Sez Firenze, I-50125 Florence, Italy
[23] CERN, European Lab Particle Phys, CH-1211 Geneva 23, Switzerland
[24] World Lab, FBLJA Project, CH-1211 Geneva 23, Switzerland
[25] Univ Geneva, CH-1211 Geneva 4, Switzerland
[26] Chinese Univ Sci & Technol, USTC, Hefei 230029, Anhui, Peoples R China
[27] SEFT, Res Inst High Energy Phys, SF-00014 Helsinki, Finland
[28] Univ Lausanne, CH-1015 Lausanne, Switzerland
[29] Univ Lecce, I-73100 Lecce, Italy
[30] Ist Nazl Fis Nucl, Sez Lecce, I-73100 Lecce, Italy
[31] Los Alamos Natl Lab, Los Alamos, NM 87544 USA
[32] Univ Claude Bernard, Inst Phys Nucl Lyon, IN2P3, CNRS, F-69622 Villeurbanne, France
[33] CIEMAT, Ctr Invest Energet Medioambientales & Tecnol, E-28040 Madrid, Spain
[34] Inst Theoret & Expt Phys, Moscow 117259, Russia
[35] Ist Nazl Fis Nucl, Sez Napoli, I-80125 Naples, Italy
[36] Univ Naples Federico II, I-80125 Naples, Italy
[37] Univ Cyprus, Dept Nat Sci, Nicosia, Cyprus
[38] Univ Nijmegen, NL-6525 ED Nijmegen, Netherlands
[39] Natl Inst Nucl Phys & High Energy Phys, NL-6525 ED Nijmegen, Netherlands
[40] Oak Ridge Natl Lab, Oak Ridge, TN 37831 USA
[41] CALTECH, Pasadena, CA 91125 USA
[42] Ist Nazl Fis Nucl, Sez Perugia, I-06100 Perugia, Italy
[43] Univ Perugia, I-06100 Perugia, Italy
[44] Carnegie Mellon Univ, Pittsburgh, PA 15213 USA
[45] Princeton Univ, Princeton, NJ 08544 USA
[46] Univ Roma La Sapienza, I-00185 Rome, Italy
[47] INFN, Sez Roma, I-00185 Rome, Italy
[48] Inst Phys Nucl, St Petersburg, Russia
[49] Univ Salerno, I-84100 Salerno, Italy
[50] INFN, I-84100 Salerno, Italy
关键词
D O I
10.1016/S0370-2693(98)00386-4
中图分类号
P1 [天文学];
学科分类号
0704 ;
摘要
Local multiplicity fluctuations in angular phase space intervals are studied using factorial moments measured in hadronic events at root s similar or equal to 91.2 GeV, which were collected by the L3 detector at LEP. Parton shower Monte Carlo programs agree well with the data. On the other hand, first-order QCD calculations in the Double Leading Log Approximation and the Modified Leading Log Approximation are found to deviate significantly from the data, (C) 1998 Elsevier Science B.V. All rights reserved.
引用
收藏
页码:186 / 196
页数:11
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