A Study of Bose-Einstein Correlations In e+e- Annihilation At 91 Gev

6533b824fe1ef96bd128160c

RESEARCH PRODUCT

A Study of Bose-Einstein Correlations In e+e- Annihilation At 91 Gev

D Décamp B Deschizeaux C Goy J P Lees M N Minard R Alemany J M Crespo M C Delfino E Fernández V Gaitan L Garrido M L Mir A Pacheco M G Catanesi D Creanza M De Palma A Farilla Giuseppe Iaselli G Maggi M Maggi S Natali S Nuzzo M Quattromini A Ranieri G Raso F Romano F Ruggieri G Selvaggi L Silvestris P Tempesta G Zito Y Gao H Hu D Huang X Huang J Lin J Lou C Qiao T Ruan T Wang Y Xie D Xu R Xu J Zhang W Zhao W B Atwood L A T Bauerdick F Bird E Blucher G Bonvicini F Bossi J Boudreau D Brown T H Burnett H Drevermann Roger W Forty C Grab R Hagelberg S Haywood J M Hilgart B Jost M Kasemann J Knobloch A Lacourt E Lançon Ivan Lehraus T Lohse A Lusiani A Marchioro M Martínez P Mato S R Menary Adolf G Minten A Miotto R Miquel H G Moser J Nash P Palazzi F Ranjard G Redlinger A E Roth J E Rothberg Herbert Rotscheidt M Saich W D Schlatter M Schmelling M Takashima W Tejessy H W Wachsmuth S R Wasserbaech W Wiedenmann W Witzeling J Wotschack Ziad J Ajaltouni F Badaud Maria Bardadin-otwinowska A M Bencheikh R El-fellous A Falvard P Gay C Guicheney J Harvey P Henrard J Jousset B Michel J C Montret D Pallin P Perret J Proriol F Prulhière G Stimpfl H Bertelsen F Hansen J D Hansen J R Hansen P H Hansen A Lindhal R Møllerud B S Nilsson I Efthymiopoulos Errietta Simopoulou Anna Vayaki J Badier A Blondel G R Bonneaud J Bourotte F Braems J C Brient G Fouque A Gamess R Guirlet S Orteu A Rosowsky A Rougé M Rumpf R Tanaka H L Videau D J Candlin E Veitch L Moneta G Parrini M Corden C H Georgiopoulos M Ikeda J E Lannutti D A Levinthal Michael E Mermikides L Sawyer A Antonelli R Baldini G Bencivenni G Bologna P Campana G Capon F Cerutti V Chiarella B D'ettorre-piazzoli G Felici P Laurelli G Mannocchi F Murtas G P Murtas L Passalacqua M Pepé-altarelli P Picchi P Zografou B Altoon O Boyle A W Halley I Ten Have J A Hearns J G Lynch W T Morton C Raine J M Scarr K Smith A S Thompson R M Turnbull B Brandl O Braun R Geiges C Geweniger P Hanke V Hepp E E Kluge Y Maumary A Putzer B Rensch A Stahl K Tittel M Wunsch A T Belk R Beuselinck David M Binnie W Cameron M Cattaneo Peter J Dornan S Dugeay A M Greene J F Hassard N M Lieske S J Patton D G Payne M J Phillips J K Sedgbeer G Taylor I R Tomalin A G Wright P Girtler D Kuhn G Rudolph C K Bowdery T J Brodbeck A J Finch F Foster G Hughes N R Keemer M Nuttall A D Patel B S Rowlingson Terence Sloan S W Snow E P Whelan T Barczewski K Kleinknecht J Raab B Renk S Roehn H G Sander H Schmidt F Steeg S M Walther B Wolf Jean-jacques Aubert C Benchouk V Bernard A Bonissent J Carr P Coyle J Drinkard F Etienne S Papalexiou P Payre B Pietrzyk Z Qian D Rousseau P Schwemling M Talby H Becker Walter Blum Paolo Walter Cattaneo G D Cowan Bernd Dehning H Dietl Friedrich Dydak M Fernández-bosman Traudl Hansl-kozanecka A Jahn Witold Kozanecki E Lange J Lauber G Lütjens Gerhard Lutz W Männer Pan Yi Bin R H Richter J Schröder A S Schwarz Ronald Settles U Stierlin R Saint-denis J Thomas G Wolf V Bertin J Boucrot O Callot A Cordier M Davier G Ganis J F Grivaz P Heusse P Janot D W Kim F R Le Diberder J Lefrançois A M Lutz J J Veillet I Videau Z Zhang F Zomer D Abbaneo S R Amendolia G Bagliesi G Batignani L Bosisio U Bottigli C Bradaschia M Carpinelli M A Ciocci R Dell'orso I Ferrante F Fidecaro L Foà E Focardi F Forti C Gatto A Giassi M A Giorgi F Ligabue E B Mannelli P S Marrocchesi A Messineo Fabrizio Palla G Sanguinetti Jack Steinberger Roberto Tenchini G Tonelli G Triggiani C Vannini A Venturi P G Verdini J Walsh J M Carter M G Green P V March T Medcalf I S Quazi J A Strong R M Thomas L R West T Wildish David R Botterill R W Clifft T R Edgecock M Edwards S M Fisher T J Jones P R Norton D P Salmon J C Thompson B Bloch-devaux P Colas C Klopfenstein E Locci Sotirios S Loucatos E Monnier P Pérez J A Perlas F Perrier J Rander J F Renardy A Roussarie J P Schuller J Schwindling B Vallage John Gavin Ashman C N Booth C M Buttar R E Carney S L Cartwright F Combley M Dinsdale M Dogru F Hatfield J Martín D Parker P Reeves L F Thompson E Bach E Barbiero S Brandt H Burkhardt G Gillesen Claus Grupen G Heitner H Meinhard L Mirabito U Schäfer H C J Seywerd C Stupperich H Trier V Zeuner G Giannini B Gobbo F Ragusa Luigi Rolandi U Stiegler L Bellantoni X Chen D Cinabro J S Conway D F Cowen Z Feng D P S Ferguson Y S Gao J Grahl J L Harton J E Jacobsen R C Jared R P Johnson B W Leclaire J R Pater Y Saadi V Sharma Z H Shi Y H Tang A M Walsh J A Wear F V Weber M H Whitney Sau Lan Wu G Zobernig

subject

Physics Particle physics Annihilation Physics and Astronomy (miscellaneous)Electron–positron annihilation Strong interaction Elementary particle Bose–Einstein correlations LEP Resonance (particle physics)Nuclear physics Pion MONTE-CARLO COHERENCE PARTICLES High Energy Physics::Experiment Quantum field theory Nuclear Experiment Engineering (miscellaneous)Particle Physics - Experiment MULTIPLE PRODUCTION

description

This paper describes a study of Bose-Einstein correlations made using the ALEPH detector at LEP. The correlations are found to enhance the two particle differential cross section for pairs of identical pions by a factor which can be roughly parametrized by R(Q) = 1 + lambda exp(-Q2-sigma(2)), where Q is the difference in the 3-momenta of the two pions in their centre of mass frame, lambda = 0.51 +/- 0.04 +/- 0.11 and sigma = 3.3 +/- 0.2 +/- 0.8 GeV-1, which corresponds to a source size of 0.65 +/- 0.04 +/- 0.16 fm. The large systematic errors on these results reflect their strong dependence on the choice of the reference sample used in the analysis. This problem is believed to occur primarily because of uncertainties in the rates of resonance production and a lack of knowledge about the pion-pion strong interaction. No significant correlations are seen amongst like-charged pion-kaon pairs.

year	journal	country	edition	language
1992-01-01

10.1007/bf01881709 http://hdl.handle.net/11568/828785