B
B. Hahn
Researcher at University of Bern
Publications - 9
Citations - 403
B. Hahn is an academic researcher from University of Bern. The author has contributed to research in topics: Large Hadron Collider & Collider. The author has an hindex of 9, co-authored 9 publications receiving 399 citations.
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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.
Journal ArticleDOI
Measurement of the s dependence of jet production at the CERN pp collider
J. A. Appel,Paolo Bagnaia,M. Banner,Roberto Battiston,K. Bernlöhr,K. Borer,M. Borghini,Giovanni Carboni,Vincenzo Cavasinni,P. Cenci,J.-C. Chollet,Allan G Clark,A. Codino,C. Conta,P. Darriulat,B. De Lotto,T. Del Prete,L. Di Lella,J. Dines-Hansen,Kevin Einsweiler,R. Engelmann,Louis Fayard,Marco Fraternali,D. Froidevaux,J.-M. Gaillard,O. Gildemeister,V. G. Goggi,Claus Gössling,B. Hahn,H. Hänni,John H. L. Hansen,Peter Hansen,Peter Hansen,N. Harnew,T. Himel,Lydia Iconomidou-Fayard,Peter Jenni,E. E. Kluge,O. Kofoed-Hansen,Eric Lancon,Michele Livan,S. Loucatos,B. Madsen,P. Mani,Bruno Mansoulie,Giancarlo Mantovani,Livio Mapelli,K. Meier,B. Merkel,R. Mollerud,M. Moniez,R. Moning,M. Morganti,C. Onions,G. Parrour,F. Pastore,M. Pepe,H. Plothow-Besch,M. Polverel,A. Putzer,L. Rasmussen,J.P. Repellin,Adele Rimoldi,A. F. Rothenberg,A. Roussarie,V. Ruhlmann,G. Sauvage,J. Schacher,M. Schlötelburg,F. Stocker,Melody A. Swartz,J. Teiger,K. Tittel,S.N. Tovey,W.Y. Tsang,M. Valdata-Nappi,Valerio Vercesi,A. R. Weidberg,M. Wunsch,H. Zaccone +79 more
TL;DR: In this paper, the production of very large transverse momentum (p T ) hadron jets has been measured in the UA2 experiment at the CERN p p Collider for s =630 GeV.
Journal ArticleDOI
Direct photon production at the CERN p̄p collider
J. A. Appel,Paolo Bagnaia,M. Banner,Roberto Battiston,K. Bernlöhr,K. Borer,M. Borghini,Giovanni Carboni,Vincenzo Cavasinni,P. Cenci,J. C. Chollet,Allan G Clark,C. Conta,P. Darriulat,B. De Lotto,T. Del Prete,L. DiLella,J. Dines-Hansen,Kevin Einsweiler,R. Engelmann,Louis Fayard,Marco Fraternali,D. Froidevaux,J. M. Gaillard,O. Gildemeister,V. G. Goggi,Claus Gössling,B. Hahn,H. Hänni,John H. L. Hansen,Peter Hansen,Peter Hansen,N. Harnew,T. Himel,Lydia Iconomidou-Fayard,K. Jacobs,Peter Jenni,E. E. Kluge,O. Kofoedo. Kofoed-Hansen,Eric Lancon,Michele Livan,S. Loucatos,B. Madsen,P. Mani,Bruno Mansoulie,Giancarlo Mantovani,Livio Mapelli,K. Meier,B. Merkel,R. Mollerud,M. Moniez,R. Moning,M. Morganti,C. Onions,M. A. Parker,G. Parrour,F. Pastore,M. Pepe,H. Plothow-Besch,M. Polverel,J. P. Repellin,A. F. Rothenberg,A. Roussarie,V. Ruhlmann,G. Sauvage,J. Schacher,M. Schlötelburg,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 +76 more
TL;DR: Using the UA2 apparatus, the inclusive cross section has been measured for production of high p T direct photons in pp collisions at s =546 GeV and s =630 GeV as discussed by the authors.
Journal ArticleDOI
Search for exotic processes at the CERN pp̄ collider
R. Ansari,P. Bagnala,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. Jacobs,Peter Jenni,E. E. Kluge,O. Kofoed-Hansen,Eric Lancon,P. Lariccia,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,Steinar Stapnes,F. Stocker,Melody A. Swartz,J. Teiger,W.Y. Tsang,M. Valdata-Nappi,Valerio Vercesi,A. R. Weidberg,M. Wunsch,H. Zaccone +80 more
TL;DR: The total UA2 data sample at the CERN pp Collider corresponds to an integrated luminosity of 910 nb −1 as mentioned in this paper, and limits on various hypothetical processes, such as production of excited electrons, additional charged or neutral vector bosons, or supersymmetric particles, are presented from the analysis of this sample.