C
C. Onions
Researcher at CERN
Publications - 30
Citations - 1848
C. Onions is an academic researcher from CERN. The author has contributed to research in topics: Large Hadron Collider & Collider. The author has an hindex of 21, co-authored 30 publications receiving 1804 citations.
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Journal ArticleDOI
Observation of Single Isolated Electrons of High Transverse Momentum in Events with Missing Transverse Energy at the CERN anti-p p Collider
M. Banner,W. Zeller,F. Bonaudi,M. Borghini,R. Mollerud,Fr. Pastore,Fr. Pastore,P. H. Hansen,Valerio Vercesi,J. M. Gaillard,Bruno Mansoulie,B.S. Nilsson,G. Parrour,G. Parrour,J. Teiger,V. Hungerbühler,H.M. Steiner,K. Borer,Michele Livan,Michele Livan,G. Sauvage,P. Mani,Peter Jenni,P. A. Dorsaz,V. G. Goggi,G. Stimpfl,T. Himel,J. C. Chollet,A. F. Rothenberg,J. L. Siegrist,C. Onions,Sotiris Loucatos,B. Madsen,Ph. Bloch,A. Roussarie,Daniel Froidevaux,J. P. Repellin,H. Plothow-Besch,H. Plothow-Besch,M. Polverel,O. Gildemeister,Louis Fayard,F. Stocker,H. Hänni,H. Zaccone,Marco Fraternali,J. Dines-Hansen,L. Di Lella,Roberto Battiston,Roberto Battiston,Livio Mapelli,G.C. Mantovani,C. Conta,Allan G Clark,B. Hahn,H. Grote,A. R. Weidberg,J. Schacher,John H. L. Hansen,O. Kofoed-Hansen,M. Mermikides,B. Merkel,Eric Lancon,P. Darriulat +63 more
TL;DR: In this article, the results of a search for single isolated electrons of high transverse momentum at the CERN p p collider were reported and the configuration of the events and their number were consistent with the expectations from the process p + p → W ± + anything, with W→e+ν, where W± is the charged Intermediate Vector Boso postulated by the unified electroweak theory.
Journal ArticleDOI
Observation of very large transverse momentum jets at the CERN pp collider
M. Banner,Ph. Bloch,F. Bonaudi,K. Borer,M. Borghini,J. C. Chollet,Allan G Clark,C. Conta,P. Darriulat,L. Di Lella,J. Dines-Hansen,P. A. Dorsaz,Louis Fayard,Marco Fraternali,Daniel Froidevaux,Daniel Froidevaux,J. M. Gaillard,O. Gildemeister,V. G. Goggi,H. Grote,B. Hahn,H. Hänni,John H. L. Hansen,P. H. Hansen,T. Himel,V. Hungerbühler,Peter Jenni,O. Kofoed-Hansen,Michele Livan,S. Loucatos,B. Madsen,Bruno Mansoulie,G.C. Mantovani,Livio Mapelli,B. Merkel,M. Mermikides,R. Mollerud,B.S. Nilsson,C. Onions,G. Parrour,G. Parrour,Fr. Pastore,H. Plothow-Besch,J. P. Repellin,J. Ringel,A. F. Rothenberg,A. Roussarie,G. Sauvage,J. Schacher,J. L. Siegrist,F. Stocker,J. Tieger,Valerio Vercesi,Hugh Williams,H. Zaccone,W. Zeller +55 more
TL;DR: The distribution of total tranverse energy ΣET over the pseudorapidity interval −1 < η < 1 and an azimuthal range Δφ=300° has been measured in the UA2 experiment at the CERN pp collider (s = 540 GeV) using a highly segmented total absorption caloriter as discussed by the authors.
Journal ArticleDOI
A search for new intermediate vector bosons and excited quarks decaying to two-jets at the CERN p̄p collider
J. Alitti,Giovanna Ambrosini,R. Ansari,D. Autiero,P. Bareyre,I.A. Bertram,G. Blaylock,P. Bonamy,K. Borer,M. Bourliaud,D. Buskulic,Giovanni Carboni,D. Cavalli,Vincenzo Cavasinni,P. Cenci,J. C. Chollet,C. Conta,G. Costa,F. Costantini,Luca Cozzi,A. Cravero,M. Curatolo,Andrea Dell'Acqua,Andrea Dell'Acqua,T. DelPrete,R. S. DeWolf,L. DiLella,Y. Ducros,Gary F. Egan,Kevin Einsweiler,B. Esposito,Louis Fayard,Andrea Federspiel,Roberto Ferrari,Marco Fraternali,Daniel Froidevaux,G. Fumagalli,J.-M. Gaillard,J.-M. Gaillard,F. Gianotti,O. Gildemeister,Claus Gössling,V. G. Goggi,S. Grünendahl,K. Hara,Sten Hellman,J. Hřivnáč,H. Hufnagel,E. Hugentobler,K. Hultqvist,E. Iacopini,J. Incandela,Karl Jakobs,Peter Jenni,E. E. Kluge,N. Kurz,S. Lami,Paolo Lariccia,Michel Lefebvre,L. Linssen,Michele Livan,P. Lubrano,P. Lubrano,C. Magneville,L. Malgeri,L. Mandelli,Livio Mapelli,Marcello Mazzanti,K. Meier,K. Meier,B. Merkel,J-P. Meyer,M. Moniez,R. Moning,M. Morganti,L. Müller,D. J. Munday,Marzio Nessi,Francesca Nessi-Tedaldi,C. Onions,T. Pal,Michael Andrew Parker,G. Parrour,F. Pastore,E. Pennacchio,J.M. Pentney,M. Pepe,Laura Perini,Chariclia Petridou,P. Petroff,H. Plothow-Besch,Giacomo Polesello,Alan Poppleton,Klaus Peter Pretzl,M. Primavera,M. Punturo,J. P. Repellin,Adele Rimoldi,Massimiliano F. Sacchi,Paola Scampoli,J. Schacher,B. Schmidt,V. Simak,S. L. Singh,V. Sondermann,R. Spiwoks,Steinar Stapnes,Cinzia Talamonti,F. Tondini,S. N. Tovey,E. Tsesmelis,G. Unal,M. Valdata-Nappi,Valerio Vercesi,A. R. Weidberg,P. S. Wells,T. O. White,Darien Wood,S. A. Wotton,H. Zaccone,A. Zylberstejn +120 more
TL;DR: In this article, the mass of an additional W boson that couples to fermions with a V + A form is constrained to be greater than 261 GeV to the 90% confidence level, and a limit on the production cross section of additional W and Z bosons is given as a function of the boson mass.
Journal ArticleDOI
Measurement of the standard model parameters from a study of w and z bosons
R. Ansari,Paolo Bagnaia,M. Banner,Roberto Battiston,K. Bernlöhr,C. N. Booth,K. Borer,M. Borghini,Giovanni Carboni,Vincenzo Cavasinni,P. Cenci,J. C. Chollet,Allan G Clark,C. Conta,F. Costantini,P. Darriulat,B. De Lotto,T. Del Prete,L. Di Lella,J. Dines-Hansen,Kevin Einsweiler,Louis Fayard,Roberto Ferrari,Marco Fraternali,D. Froidevaux,J. M. Gaillard,O. Gildemeister,V. G. Goggi,Claus Gössling,B. Hahn,H. Hänni,John H. L. Hansen,P. H. Hansen,K. Hara,N. Harnew,E. Hugentobler,E. Iacopini,Lydia Iconomidou-Fayard,K. Jakobs,Peter Jenni,E. E. Kluge,O. Kofoed-Hansen,Eric Lancon,P. Lariccia,B. Lisowski,Michele Livan,S. Loucatos,B. Madsen,Bruno Mansoulie,Giancarlo Mantovani,Livio Mapelli,K. Meier,B. Merkel,R. Mollerud,M. Moniez,R. Moning,M. Morganti,C. Onions,T. Pal,M. A. Parker,G. Parrour,F. Pastore,M. Pepe,Chariclia Petridou,H. Plothow-Besch,M. Polverel,L. Rasmussen,J. P. Repellin,A. Roussarie,V. Ruhlmann,G. Sauvage,J. Schacher,F. Stocker,Melody A. Swartz,J. Teiger,S.N. Tovey,W.Y. Tsang,M. Valdata-Nappi,Valerio Vercesi,A. R. Weidberg,M. Wunsch,H. Zaccone,J. A. Zakrzewski,J. A. Zakrzewski +83 more
TL;DR: In this article, the decays W → ev and Z → e + e −, using the UA2 detector at the CERN pp Collider, correspond to an integrated luminosity of 142 nb −1 at a centre-of-mass collision energy √ s =546 GeV, and 768 nb−1 at √ n =630 GeV.
Journal ArticleDOI
Measurement of W and Z Production Properties at the CERN pp Collider
Paolo Bagnaia,M. Banner,Roberto Battiston,Ph. Bloch,K. Borer,M. Borghini,J. Bürger,P. Cenci,J. C. Chollet,Allan G Clark,C. Conta,P. Darriulat,L. Di Lella,J. Dines-Hansen,R. Engelmann,Louis Fayard,Marco Fraternali,D. Froidevaux,J. M. Gaillard,O. Gildemeister,V. G. Goggi,Claus Gössling,B. Hahn,H. Hänni,H. Hänni,John H. L. Hansen,John H. L. Hansen,P. H. Hansen,N. Harnew,T. Himel,Peter Jenni,O. Kofoed-Hansen,Eric Lancon,Michele Livan,S. Loucatos,B. Madsen,P. Mani,Bruno Mansoulie,Giancarlo Mantovani,Livio Mapelli,B. Merkel,R. Mollerud,C. Onions,G. Parrour,F. Pastore,H. Plothow-Besch,M. Polverel,J. P. Repellin,A. F. Rothenberg,A. Roussarie,G. Sauvage,J. Schacher,J. L. Siegrist,G. Stimpfl,F. Stocker,Melody A. Swartz,J. Teiger,S.N. Tovey,Valerio Vercesi,A. R. Weidberg,H. Zaccone,J. A. Zakrzewski,W. Zeller +62 more
TL;DR: In this paper, a study of the production characteristics of W and Z bosons produced at the CERN p p p Collider has been made, where W→ev decays and 39 Z→e + e − decays were identified by the UA2 detector.