ENERGY ENERGY CORRELATIONS IN HADRONIC FINAL-STATES FROM Z0 DECAYS

被引:53
作者
Abreu, P
Adam, W
Adami, F
Ayde, T
Alekseev, GD
Allen, P
Almehed, S
Alted, F
Alvsvaag, SJ
Amaldi, U
Anassontzis, E
Apel, WD
Asman, B
Astier, P
Augustinus, JE
Augustinus, A
Baillon, P
Bambade, P
Barao, F
Barbiellini, G
Bardin, DY
Baroncelli, A
Barring, O
Bartl, W
Bates, MJ
Baubillier, M
Becks, KH
Beeston, CJ
Beilliere, P
Belokopytov, I
Beltran, P
Benedic, D
Benlloch, JM
Berggren, M
Bertrand, D
Biagi, S
Bianchi, F
Bibby, JH
Bilenky, MS
Billoir, P
Biarne, J
Bloch, D
Bogolubov, PN
Bollini, D
Bolognese, T
Bonapart, M
Bonesini, M
Booth, PSL
Boratav, M
Borgeaud, P
机构
[1] LAB INSTRUMENTACAO & FIS EXPTL PARTICULAS, P-1000 LISBON, PORTUGAL
[2] Osterreich Akad Wissensch, Inst Hochenergiephys, A-1050 Vienna, AUSTRIA
[3] CEN Saclay, DPhPE, F-91191 Gif Sur Yvette, FRANCE
[4] Rutherford Appleton Lab, Didcot OX11 0QX, Oxon, ENGLAND
[5] Joint Inst Nucl Res, SU-101000 Moscow, RUSSIA
[6] Ctr Mixto Univ Valencia CSIC, Inst Fis Corpuscular IFIC, E-46100 Burjassot, Valencia, SPAIN
[7] Univ Lund, Dept Phys, S-22363 Lund, SWEDEN
[8] Univ Bergen, Dept Phys, N-5007 Bergen, NORWAY
[9] CERN, CH-1211 Geneva 23, SWITZERLAND
[10] Univ Athens, Phys Lab, GR-10680 Athens, GREECE
[11] Univ Karlsruhe, Inst Expt Kernphys, W-7500 Karlsruhe 1, GERMANY
[12] Univ Stockholm, Inst Phys, S-11346 Stockholm, SWEDEN
[13] Univ Paris 06, LPNHE, F-75230 Paris 05, FRANCE
[14] Univ Paris 07, F-75230 Paris 05, FRANCE
[15] Univ Paris Sud, Lab Accelerateur Lineaire, F-91405 Orsay, FRANCE
[16] Univ Trieste, Dipartimento Fis, I-34127 Trieste, ITALY
[17] Ist Nazl Fis Nucl, I-34127 Trieste, ITALY
[18] Univ Udine, Ist Fis, I-33100 Udine, ITALY
[19] Ist Nazl Fis Nucl, Ist Super Sanita, I-00161 Rome, ITALY
[20] Univ Rome 2, Dipartimento Fis, I-00173 Rome, ITALY
[21] Ist Nazl Fis Nucl, I-00173 Rome, ITALY
[22] Univ Oxford, Nucl Phys Lab, Oxford OX1 3RH, ENGLAND
[23] Univ Wuppertal, Fach Phys, W-5600 Wuppertal 1, GERMANY
[24] Coll France, Lab Phys Corpusculaire, F-75231 Paris 5, FRANCE
[25] Inst High Energy Phys, SU-142284 Protvino, Moscow Region, RUSSIA
[26] Nucl Res Ctr Demokritos, Greek Atom Energy Commis, GR-15310 Aghia Paraskevi, GREECE
[27] CRN Grp DELPHI, Div Hautes Energies, F-67037 Strasbourg, FRANCE
[28] LEPSI, F-67037 Strasbourg, FRANCE
[29] Univ Instelling Antwerpen, Phys Dept, B-2610 Wilrijk, BELGIUM
[30] ULB VUB, IIHE, B-1050 Brussels, BELGIUM
[31] Univ Etat Mons, Fac Sci, Serv Phys Particules Elementaires, B-7000 Mons, BELGIUM
[32] Univ Liverpool, Dept Phys, Liverpool L69 3BX, Merseyside, ENGLAND
[33] Univ Turin, Dipartimento Fis Sperimantale, I-10125 Turin, ITALY
[34] Ist Nazl Fis Nucl, I-10125 Turin, ITALY
[35] Univ Bologna, Dipartimento Fis, I-40126 Bologna, ITALY
[36] Ist Nazl Fis Nucl, I-40126 Bologna, ITALY
[37] NIKHEF H, NL-1009 DB Amsterdam, NETHERLANDS
[38] Univ Milan, Dipartimento Fis, I-20133 Milan, ITALY
[39] Ist Nazl Fis Nucl, I-20133 Milan, ITALY
[40] Univ Uppsala, Dept Radiat Sci, S-75121 Uppsala, SWEDEN
[41] Univ Genoa, Dipartimento Fis, I-16146 Genoa, ITALY
[42] Ist Nazl Fis Nucl, I-16146 Genoa, ITALY
[43] Univ Helsinki, Dept High Energy Phys, SF-00170 Helsinki 17, FINLAND
[44] Univ Oslo, Phys Dept, N-1000 Oslo 3, NORWAY
[45] Univ Santander, Fac Ciencias, E-39005 Santander, SPAIN
[46] Univ Padua, Dipartimento Fis, I-35131 Padua, ITALY
[47] Ist Nazl Fis Nucl, I-35131 Padua, ITALY
[48] Iowa State Univ, Ames Lab, Ames, IA 50011 USA
[49] Iowa State Univ, Dept Phys, Ames, IA 50011 USA
[50] Niels Bohr Inst, DK-2100 Copenhagen O, DENMARK
关键词
D O I
10.1016/0370-2693(90)91097-U
中图分类号
P1 [天文学];
学科分类号
0704 ;
摘要
We have studied the energy-energy angular correlations in hadronic final states from Z0 decay using the DELPHI detector at LEP. From a comparison with Monte Carlo calculations based on the exact second order QCD matrix element and string fragmentation we find that Lambda-MS(5) = 104(-20)+25(stat.)-20(+25)(syst.)-00(+30)(theor.) MeV, which corresponds to alpha-s(91 GeV) = 0.106 +/- 0.003(stat.) +/- 0.003(syst.)-0.000(+0.003)(theor.). The theoretical error stems from different choices for the renormalization scale of alpha-s. In the Monte Carlo simulation the scale of alphA-s as well as the fragmentation parameters have been optimized to described reasonably well as aspects of multihadron production.
引用
收藏
页码:149 / 158
页数:10
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