MEASUREMENT OF THE PRODUCTION-RATES OF ETA AND ETA' IN HADRONIC-Z DECAYS

6533b85afe1ef96bd12b8b4a

RESEARCH PRODUCT

MEASUREMENT OF THE PRODUCTION-RATES OF ETA AND ETA' IN HADRONIC-Z DECAYS

Buskulic D Decamp D Goy C Lees Jp Minard Mn Mours B Alemany R Ariztizabal F Comas P Crespo Jm Delfino M Fernandez E Gaitan V Garrido L Pacheco A Pascual A Creanza D Depalma M Farilla A Iaselli G Maggi G Maggi M Natali S Nuzzo S Quattromini M Ranieri A Raso G Romano F Ruggieri F Selvaggi G Silvestris L Tempesta P Zito G Gao Y Hu H Huang D Huang X Lin J Lou J Qiao C Wang T Xie Y Xu D Xu R Zhang J Zhao W Atwood Wb Bauerdick Lat Blucher E Bonvicini G Bossi F Boudreau J Burnett Th Drevermann H Forty Rw Hagelberg R Harvey J Haywood S Hilgart J Jacobsen R Jost B Knobloch J Lancon E Lehraus I Lohse T Alberto Lusiani Martinez M Mato P Mattison T Meinhard H Menary S Meyer T Minten A Miquel R Moser Hg Nash J Palazzi P Perlas Ja Ranjard F Redlinger G Roth A Rothberg J Ruan T Saich M Schlatter D Schmelling M Sefkow F Tejessy W Wachsmuth H Wiedenmann W Wildish T Witzeling W Wotschack J Ajaltouni Z Badaud F Bardadinotwinowska M Bencheikh Am Elfellous R Falvard A Gay P Guicheney C Henrard P Jousset J Michel B Montret Jc Pallin D Perret P Pietrzyk B Proriol J Prulhiere F Stimpfl G Fearnley T Hansen Jd Hansen Jr Hansen Ph Mollerud R Nilsson Bs Efthymiopoulos I Kyriakis A Simopoulou E Vayaki A Zachariadou K Badier J Blondel A Bonneaud G Brient Jc Fouque G Gamess A Orteu S Rosowsky A Rouge A Rumpf M Tanaka R Videau H Candlin Dj Parsons Mi Veitch E Moneta L Parrini G Corden M Georgiopoulos C Ikeda M Lannutti J Levinthal D Mermikides M Sawyer L Wasserbaech S Antonelli A Baldini R Bencivenni G Bologna G Campana P Capon G Cerutti F Chiarella V Dettorrepiazzoli B Felici G Laurelli P Mannocchi G Murtas F Murtas Gp Passalacqua L Pepealtarelli M Picchi P Altoon B Boyle O Colrain P Tenhave I Lynch Jg Maitland W Morton Wt Raine C Scarr Jm Smith K Thompson As Turnbull Rm Brandl B Braun O Geiges R Geweniger C Hanke P Hepp V Kluge Ee Maumary Y Putzer A Rensch B Stahl A Tittel K Wunsch M Belk At Beuselinck R Binnie Dm Cameron W Cattaneo M Colling Dj Dornan Pj Dugeay S Greene Am Hassard Jf Lieske Nm Patton Sj Payne Dg Phillips Mj Sedgbeer Jk Tomalin Ir Wright Ag Kneringer E Kuhn D Rudolph G Bowdery Ck Brodbeck Tj Finch Aj Foster F Hughes G Jackson D Keemer Nr Nuttall M Patel A Sloan T Snow Sw Whelan Ep Barczewski T Kleinknecht K Raab J Renk B Roehn S Sander Hg Schmidt H Steeg F Walther Sm Wolf B Aubert Jj Benchouk C Bernard V Bonissent A Carr J Coyle P Drinkard J Etienne F Papalexiou S Payre P Qian Z Rousseau D Schwemling P Talby M Adlung S Bauer C Blum W Brown D Cowan G Dehning B Dietl H Dydak F Fernandezbosman M Frank M Halley Aw Lauber J Lutjens G Lutz G Manner W Richter R Schroder J Schwarz As Settles R Seywerd H Stierlin U Stiegler U Stdenis R Takashima M Thomas J Wolf G Bertin V Boucrot J Callot O Chen X Cordier A Davier M Grivaz Jf Heusse P Janot P Kim Dw Lediberder F Lefrancois J Lutz Am Schune Mh Veillet Jj Videau I Zhang Z Zomer F Abbaneo D Amendolia Sr Bagliesi G Batignani G Bosisio L Bottigli U Bradaschia C Carpinelli M Ciocci Ma Dellorso R Ferrante I Fidecaro F Foa L Focardi E Forti F Giassi A Giorgi Ma Mannelli Eb Marrocchesi Ps Messineo A Palla F Rizzo G Sanguinetti G Steinberger J Tenchini R Tonelli G Triggiani G Vannini C Venturi A Verdini Pg Walsh J Carter Jm Green Mg March Pv Mir Lm Medcalf T Quazi Is Strong Ja West Lr Botterill Dr Clifft Rw Edgecock Tr Edwards M Fisher Sm Jones Tj Norton Pr Salmon Dp Thompson Jc Blochdevaux B Colas P Kozanecki W Lemaire Mc Locci E Loucatos S Monnier E Perez P Perrier F Rander J Renardy Jf Roussarie A Schuller Jp Schwindling J Mohand Ds Vallage B Johnson Rp Litke Am Taylor G Wear J Ashman Jg Babbage W Booth Cn Buttar C Carney Re Cartwright S Combley F Hatfield F Reeves P Thompson Lf Barberio E Brandt S Grupen C Mirabito L Schafer U Ganis G Giannini G Gobbo B Ragusa F Bellantoni L Cinabro D Conway Js Cowen Df Feng Z Ferguson Dps Gao Ys Grahl J Harton Jl Jared Rc Leclaire Bw Lishka C Pan Yb Pater Jr Pusztaszeri Jf Saadi Y Sharma V Schmitt M Shi Zh Walsh Am Weber Fv Whitney Mh Wu Sl Wu X Zobernig G Ri Perrier Frederic/a 5953 2011 Antonelli Antonella/c 6238 2011 Buttar Craig/d 3706 2011 Stahl Achim/e 8846 2011 Passalacqua Luca/f 5127 2011 Murtas Fabrizio/b 5729 2012 S.t. Denis Richard/c 8997 2012 Forti Francesco/h 3035 2011 Ferrante Isidoro/f 1017 2012 Luigi Rolandi Franco Ligabue

subject

Physics Nuclear and High Energy Physics Particle physics E+E ANNIHILATION Electron–positron annihilation Monte Carlo method Hadron LEP Nuclear physics Fragmentation (mass spectrometry)Fragmentation function High Energy Physics::Experiment Astrophysics::Earth and Planetary Astrophysics Nuclear Experiment Particle Physics - Experiment Production rate

description

The decays eta --> gammagamma and eta' --> etapi+pi- have been observed in hadronic decays of the Z produced at LEP. The fragmentation functions of both the eta and eta' have been measured. The measured multiplicities for x > 0.1 are 0.298 +/- 0.023 +/- 0.021 and 0.068 +/- 0.018 +/- 0.016 for eta and eta' respectively. While the fragmentation function for the eta is fairly well described by the JETSET Monte Carlo, it is found that the production rate of the eta' is a factor of four less than the corresponding prediction.

year	journal	country	edition	language
1992-01-01

10.1016/0370-2693(92)90633-f https://hdl.handle.net/11384/4322