Search for leptoquark bosons in ep collisions at HERA

Summary, in English

A search for scalar and vector leptoquarks coupling to first generation fermions is performed using the e(+) p and e(-) p scattering data collected by the H1 experiment between 1994 and 2000. The data correspond to a total integrated luminosity of 117 pb(-1). No evidence for the direct or indirect production of such particles is found in data samples with a large transverse momentum final state electron or with large missing transverse momentum. Constraints on leptoquark models are established. For leptoquark couplings of electromagnetic strength, leptoquarks with masses up to 275-325 GeV are ruled out at 95% confidence level. These limits improve and supercede earlier H1 limits based on subsamples of the data used here.

• Author: A Aktas; V Andreev; T Anthonis; S Aplin; A Asmone; A Astvatsatourov; A Babaev; S Backovic; J Bahr; A Baghdasaryan; P Baranov; E Barrelet; W Bartel; S Baudrand; S Baumgartner; J Becker; M Beckingham; O Behnke; O Behrendt; A Belousov; C Berger; N Berger; JC Bizot; MO Boenig; V Boudry; J Bracinik; G Brandt; V Brisson; DP Brown; D Bruncko; FW Busser; A Bunyatyan; G Buschhorn; L Bystritskaya; AJ Campbell; S Caron; F Cassol-Brunner; K Cerny; V Cerny; V Chekelian; JG Contreras; JA Coughlan; BE Cox; G Cozzika; J Cvach; JB Dainton; WD Dau; K Daum; Y de Boer; B Delcourt; A De Roeck; K Desch; EA De Wolf; C Diaconu; V Dodonov; A Dubak; G Eckerlin; V Efremenko; S Egli; R Eichler; F Eisele; M Ellerbrock; E Elsen; W Erdmannn; S Essenov; A Falkewicz; PJW Faulkner; L Favart; A Fedotov; R Felst; J Ferencei; L Finke; M Fleischer; P Fleischmann; YH Fleming; G Flucke; A Formenko; I Foresti; G Franke; T Frisson; E Gabathuler; E Garutti; J Gayler; C Gerlich; S Ghazaryan; S Ginzburgskaya; A Glazov; I Glushkov; L Goerlich; M Goettlich; N Gogitidze; S Gorbounov; C Goyon; C Grab; T Greenshaw; M Gregori; BR Grell; G Grinedhammer; C Gwilliam; D Haidt; L Hajduk; Magnus Hansson; G Heinzelmann; RCW Henderson; H Henschel; O Henshaw; G Herrera; M Hildebrandt; KH Hiller; D Hoffmann; R Horisberger; A Hovhannisyan; T Hreus; A Ibbotson; M Ismail; M Jacquet; L Janauschek; X Janssen; V Jemanov; Leif Jönsson; DP Johnson; AW Jung; H Jung; M Kapichine; J Katzy; N Keller; IR Kenyon; C Kiesling; M Klein; C Kleinwort; T Klimkovich; T Kluge; G Knies; Albert Knutsson; V Korbel; P Kostka; K Krastev; J Kretzschmar; A Kropivnitskaya; K Kruger; J Kuckens; MPJ Landon; W Lange; T Lastovicka; G Lastovicka-Medin; P Laycock; A Lebedev; G Leibenguth; B Leissner; V Lendermann; S Levonian; L Lindfeld; K Lipka; A Liptaj; B List; E Lobodzinska; N Loktionova; R Lopez-Fernandez; V Lubimov; AI Lucaci-Timoce; H Lueders; D Luke; T Lux; L Lytkin; A Makankine; N Malden; E Malinovski; S Mangano; P Marage; R Marshall; M Martisikova; HU Martyn; SJ Maxfield; D Meer; A Mehta; K Meier; AB Meyer; H Meyer; J Meyer; S Mikocki; I Milcewicz-Mika; D Milstead; D Mladenov; A Mohamed; F Moreau; A Morozov; JV Morris; MU Mozer; K Muller; P Murin; K Nankov; B Naroska; T Naumann; PR Newman; C Niebuhr; A Nikiforov; D Nikitin; G Nowak; M Nozicka; R Oganezov; B Olivier; JE Olsson; Sakar Osman; D Ozerov; V Palichik; I Panagoulias; T Papadopoulou; C Pascaud; GD Patel; M Peez; E Perez; D Perez-Astudillo; A Perieanu; A Petrukhin; D Pitzl; R Placakyte; B Portheault; B Povh; P Prideaux; N Raicevic; P Reimer; A Rimmer; C Risler; E Rizvi; P Robmann; B Roland; R Roosen; A Rostovtsev; Z Rurikova; S Rusakov; F Salvaire; DPC Sankey; E Sauvan; S Schatzel; EP Schilling; S Schmidt; S Schmitt; C Schmitz; L Schoeffel; A Schoning; V Schroder; HC Schultz-Coulon; K Sedlak; E Sefkow; RN Shaw-West; I Sheviakov; LN Shtarkov; Y Sirois; T Sloan; P Smirnov; Y Soloviev; D South; V Spaskov; A Specka; B Stella; J Stiewe; I Strauch; U Straumann; V Tchoulakov; G Thompson; PD Thompson; F Tomasz; D Traynor; P Truol; I Tsakov; G Tsipolitis; I Tsurin; J Turnau; E Tzamariudaki; M Urban; A Usik; D Utkin; S Valkar; A Valkarovda; C Vallee; P Van Mechelen; N Van Remortel; AV Trevino; Y Vazdik; C Veelken; A Vest; S Vinokurova; V Volchinski; B Vujicic; K Wacker; J Wagner; G Weber; R Weber; D Wegener; C Werner; N Werner; M Wessels; B Wessling; C Wigmore; C Wissing; R Wolf; E Wunsch; S Xella; W Yan; V Yeganov; J Zacek; J Zalesak; Z Zhang; A Zhelezov; A Zhokin; YC Zhu; J Zimmermann; T Zimmermann; H Zohrabyan; F Zomer
• Department/s: Particle and nuclear physics
• Publishing year: 2005
• Language: English
• Pages: 9-19
• Publication/Series: Physics Letters. Section B: Nuclear, Elementary Particle and High-Energy Physics
• Volume: 629
• Issue: 1
• Links: http://dx.doi.org/10.1016/j.physletb.2005.09.048
• Document type: Journal article
• Publisher: Elsevier
• Topic: Subatomic Physics
• Status: Published
• ISBN/ISSN/Other: ISSN: 0370-2693