π±, K±, p and (p)over-bar production in Z0→q(q)over-bar, Z0→b(b)over-bar, Z0→u(u)over-bar,d(d)over-bar,s(s)over-bar

被引：40

作者：

Abreu, P ^{[1
]}

Adam, W

Adye, T

Adzic, P

Ajinenko, I

Alekseev, GD

Alemany, R

Allport, PP

Almehed, S

Amaldi, U

Amato, S

Anassontzis, EG

Andersson, P

Andreazza, A

Antilogus, P

Apel, WD

Arnoud, Y

Asman, B

Augustin, JE

Augustinus, A

Baillon, P

Bambade, P

Barao, F

Barbiellini, G

Barbier, R

Bardin, DY

Barker, G

Baroncelli, A

Battaglia, M

Baubillier, M

Becks, KH

Begalli, M

Beilliere, P

Belokopytov, Y

Belous, K

Benvenuti, AC

Berat, C

Berggren, M

Bertini, D

Bertrand, D

Besancon, M

Bianchi, F

Bigi, M

Bilenky, MS

Bizouard, MA

Bloch, D

Bonesini, M

Bonivento, W

Boonekamp, M

Booth, PSL

机构：

[1] Iowa State Univ, Dept Phys & Astron, Ames, IA 50011 USA

[2] Univ Instelling Antwerp, Dept Phys, BE-2610 Antwerp, Belgium

[3] ULB, VUB, IIHE, BE-1050 Brussels, Belgium

[4] Univ Etat Mons, Fac Sci, BE-7000 Mons, Belgium

[5] Univ Athens, Phys Lab, GR-10680 Athens, Greece

[6] Univ Bergen, Dept Phys, NO-5007 Bergen, Norway

[7] Univ Bologna, Dipartmento Fis, I-40126 Bologna, Italy

[8] Ist Nazl Fis Nucl, I-40126 Bologna, Italy

[9] Ctr Brasileiro Pesquisas Fis, BR-22290 Rio De Janeiro, Brazil

[10] Pontificia Univ Catolica Rio de Janeiro, Dept Fis, BR-22453 Rio De Janeiro, Brazil

[11] Univ Estado Rio De Janeiro, Inst Fis, Rio De Janeiro, Brazil

[12] Comenius Univ, Fac Math & Phys, SK-84215 Bratislava, Slovakia

[13] Coll France, Phys Corpusculaire Lab, CNRS, IN2P3, FR-75231 Paris 05, France

[14] CERN, CH-1211 Geneva 23, Switzerland

[15] ULP, CNRS, IN2P3, Inst Rech Subatom, FR-67037 Strasbourg, France

[16] NCSR Demokritos, Inst Nucl Phys, GR-15310 Athens, Greece

[17] Inst Phys CAS, Div High Energy Phys, FZU, CZ-18040 Prague 8, Czech Republic

[18] Univ Genoa, Dipartimento Fis, I-16146 Genoa, Italy

[19] Ist Nazl Fis Nucl, I-16146 Genoa, Italy

[20] Univ Grenoble 1, CNRS, IN2P3, Inst Sci Nucl, F-38026 Grenoble, France

[21] Helsinki Inst Phys, FI-00014 Helsinki, Finland

[22] Head Post Off, Joint Inst Nucl Res, RU-10100 Moscow, Russia

[23] Univ Karlsruhe, Inst Expt Kernphys, DE-76128 Karlsruhe, Germany

[24] Inst Nucl Phys, PL-30055 Krakow, Poland

[25] Univ Min & Met Krakow, PL-30055 Krakow, Poland

[26] Univ Paris Sud, Lab Accelerateur Lineaire, CNRS, IN2P3, FR-91405 Orsay, France

[27] Univ Lancaster, Sch Phys & Chem, Lancaster LA1 4YB, England

[28] FCUL, IST, LIP, PT-1000 Lisbon, Portugal

[29] Univ Liverpool, Dept Phys, Liverpool L69 3BX, Merseyside, England

[30] Univ Paris 06, CNRS, IN2P3, LPNHE, FR-75252 Paris 05, France

[31] Univ Paris 07, CNRS, IN2P3, LPNHE, FR-75252 Paris 05, France

[32] Lund Univ, Dept Phys, SE-22363 Lund, Sweden

[33] Univ Lyon 1, IPNL, CNRS, IN2P3, FR-69622 Villeurbanne, France

[34] Univ Aix Marseille 2, CPP, CNRS, IN2P3, FR-13288 Marseille 09, France

[35] Univ Milan, Dipartimento Fis, IT-20133 Milan, Italy

[36] Ist Nazl Fis Nucl, IT-20133 Milan, Italy

[37] Niels Bohr Inst, DK-2100 Copenhagen 0, Denmark

[38] Charles Univ Prague, Nucl Ctr MFF, NC, Areal MFF, CZ-18000 Prague 8, Czech Republic

[39] NIKHEF, NL-1009 DB Amsterdam, Netherlands

[40] Natl Tech Univ Athens, Dept Phys, GR-15773 Athens, Greece

[41] Univ Oslo, Dept Phys, NO-1000 Oslo 3, Norway

[42] Univ Oviedo, Dept Fis, ES-33007 Oviedo, Spain

[43] Univ Oxford, Dept Phys, Oxford OX1 3RH, England

[44] Univ Padua, Dipartimento Fis, IT-35131 Padua, Italy

[45] Ist Nazl Fis Nucl, IT-35131 Padua, Italy

[46] Rutherford Appleton Lab, Didcot OX11 0QX, Oxon, England

[47] Univ Roma Tor Vergata, Dipartimento Fis, IT-00173 Rome, Italy

[48] Ist Nazl Fis Nucl, IT-00173 Rome, Italy

[49] Univ Roma 3, Dipartimento Fis, IT-00146 Rome, Italy

[50] Ist Nazl Fis Nucl, IT-00146 Rome, Italy

来源：

EUROPEAN PHYSICAL JOURNAL C | 1998年 / 5卷 / 04期

关键词：

D O I：

10.1007/s100529800989

中图分类号：

O412 [相对论、场论]; O572.2 [粒子物理学];

学科分类号：

摘要：

The DELPHI experiment at LEP uses Ring Imaging Cherenkov detectors for particle identification. The good understanding of the RICH detectors allows the identification of charged pions, kaons and protons, covering the full momentum range from 0.7 < p < 45.6 GeV/c. The pi(+/-), K+/-, p and (p) over bar normalised production rates, their differential cross sections, multiplicities and the maxima xi(p)* of the xi(p) = In(1/X-p) distributions are measured for three event samples Z(0) --> q (q) over bar, Z(0) --> b (b) over bar, Z(0) --> u (u) over bar, d (d) over bar, s (s) over bar, selected from similar to 1400000 Z(0) decays collected by DELPHI in 1994. The results are compared to the predictions of the JETSET string fragmentation model and the HERWIG cluster fragmentation model. The Modified Leading Logarithm Approximation with Local Parton-Hadron Duality is tested. The xi(p)* dependence on the primary quark flavour is investigated and quantified for the different particle distributions. The pi(+/-), K+/-, p and (p) over bar multiplicities are measured with precisions from +/-4% to +/-6%. For the Z(0) --> q (q) over bar, and Z(0) --> b (b) over bar, event samples, these improve on previous measurements. The pi(+/-), K+/-, p and (p) over bar multiplicities for Z(0) --> u (u) over bar, d (s) over bar, s (s) over bar are presented for the first time.

引用

页码：585 / 620

页数：36

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