pith. machine review for the scientific record. sign in

arxiv: 1311.3282 · v2 · submitted 2013-11-13 · ✦ hep-ex

Recognition: unknown

First Search for Exotic Z Boson Decays into Photons and Neutral Pions in Hadron Collisions

CDF Collaboration: T. Aaltonen , S. Amerio , D. Amidei , A. Anastassov , A. Annovi , J. Antos , G. Apollinari , J.A. Appel
show 399 more authors
T. Arisawa A. Artikov J. Asaadi W. Ashmanskas B. Auerbach A. Aurisano F. Azfar W. Badgett T. Bae A. Barbaro-Galtieri V.E. Barnes B.A. Barnett P. Barria P. Bartos M. Bauce F. Bedeschi S. Behari G. Bellettini J. Bellinger D. Benjamin A. Beretvas A. Bhatti K.R. Bland B. Blumenfeld A. Bocci A. Bodek D. Bortoletto J. Boudreau A. Boveia L. Brigliadori C. Bromberg E. Brucken J. Budagov H.S. Budd K. Burkett G. Busetto P. Bussey P. Butti A. Buzatu A. Calamba S. Camarda M. Campanelli F. Canelli B. Carls D. Carlsmith R. Carosi S. Carrillo B. Casal M. Casarsa A. Castro P. Catastini D. Cauz V. Cavaliere M. Cavalli-Sforza A. Cerri L. Cerrito Y.C. Chen M. Chertok G. Chiarelli G. Chlachidze K. Cho D. Chokheli A. Clark C. Clarke M.E. Convery J. Conway M. Corbo M. Cordelli C.A. Cox D.J. Cox M. Cremonesi D. Cruz J. Cuevas R. Culbertson N. D'Ascenzo M. Datta P. de Barbaro L. Demortier M. Deninno M. d'Errico F. Devoto A. Di Canto B. Di Ruzza J.R. Dittmann S. Donati M. D'Onofrio M. Dorigo A. Driutti K. Ebina R. Edgar A. Elagin R. Erbacher S. Errede B. Esham S. Farrington J.P. Fern\'andez Ramos R. Field G. Flanagan R. Forrest M. Franklin J.C. Freeman H. Frisch Y. Funakoshi C. Galloni A.F. Garfinkel P. Garosi H. Gerberich E. Gerchtein S. Giagu V. Giakoumopoulou K. Gibson C.M. Ginsburg N. Giokaris P. Giromini G. Giurgiu V. Glagolev D. Glenzinski M. Gold D. Goldin A. Golossanov G. Gomez G. Gomez-Ceballos M. Goncharov O. Gonz\'alez L\'opez I. Gorelov A.T. Goshaw K. Goulianos E. Gramellini S. Grinstein C. Grosso-Pilcher R.C. Group J. Guimaraes da Costa S.R. Hahn J.Y. Han F. Happacher K. Hara M. Hare R.F. Harr T. Harrington-Taber K. Hatakeyama C. Hays J. Heinrich M. Herndon A. Hocker Z. Hong W. Hopkins S. Hou R.E. Hughes U. Husemann M. Hussein J. Huston G. Introzzi M. Iori A. Ivanov E. James D. Jang B. Jayatilaka E.J. Jeon S. Jindariani M. Jones K.K. Joo S.Y. Jun T.R. Junk M. Kambeitz T. Kamon P.E. Karchin A. Kasmi Y. Kato W. Ketchum J. Keung B. Kilminster D.H. Kim H.S. Kim J.E. Kim M.J. Kim S.H. Kim S.B. Kim Y.J. Kim Y.K. Kim N. Kimura M. Kirby K. Knoepfel K. Kondo D.J. Kong J. Konigsberg A.V. Kotwal M. Kreps J. Kroll M. Kruse T. Kuhr M. Kurata A.T. Laasanen S. Lammel M. Lancaster K. Lannon G. Latino H.S. Lee J.S. Lee S. Leo S. Leone J.D. Lewis A. Limosani E. Lipeles A. Lister H. Liu Q. Liu T. Liu S. Lockwitz A. Loginov D. Lucchesi A. Luc\`a J. Lueck P. Lujan P. Lukens G. Lungu J. Lys R. Lysak R. Madrak P. Maestro S. Malik G. Manca A. Manousakis-Katsikakis L. Marchese F. Margaroli P. Marino M. Mart\'inez K. Matera M.E. Mattson A. Mazzacane P. Mazzanti R. McNulty A. Mehta P. Mehtala C. Mesropian T. Miao D. Mietlicki A. Mitra H. Miyake S. Moed N. Moggi C.S. Moon R. Moore M.J. Morello A. Mukherjee Th. Muller P. Murat M. Mussini J. Nachtman Y. Nagai J. Naganoma I. Nakano A. Napier J. Nett C. Neu T. Nigmanov L. Nodulman S.Y. Noh O. Norniella L. Oakes S.H. Oh Y.D. Oh I. Oksuzian T. Okusawa R. Orava L. Ortolan C. Pagliarone E. Palencia P. Palni V. Papadimitriou W. Parker G. Pauletta M. Paulini C. Paus T.J. Phillips G. Piacentino E. Pianori J. Pilot K. Pitts C. Plager L. Pondrom S. Poprocki K. Potamianos A. Pranko F. Prokoshin F. Ptohos G. Punzi N. Ranjan I. Redondo Fern\'andez P. Renton M. Rescigno F. Rimondi L. Ristori A. Robson T. Rodriguez S. Rolli M. Ronzani R. Roser J.L. Rosner F. Ruffini A. Ruiz J. Russ V. Rusu W.K. Sakumoto Y. Sakurai L. Santi K. Sato V. Saveliev A. Savoy-Navarro P. Schlabach E.E. Schmidt T. Schwarz L. Scodellaro F. Scuri S. Seidel Y. Seiya A. Semenov F. Sforza S.Z. Shalhout T. Shears P.F. Shepard M. Shimojima M. Shochet I. Shreyber-Tecker A. Simonenko K. Sliwa J.R. Smith F.D. Snider H. Song V. Sorin R. St. Denis M. Stancari D. Stentz J. Strologas Y. Sudo A. Sukhanov I. Suslov K. Takemasa Y. Takeuchi J. Tang M. Tecchio P.K. Teng J. Thom E. Thomson V. Thukral D. Toback S. Tokar K. Tollefson T. Tomura D. Tonelli S. Torre D. Torretta P. Totaro M. Trovato F. Ukegawa S. Uozumi G. Velev C. Vellidis C. Vernieri M. Vidal R. Vilar J. Viz\'an M. Vogel G. Volpi F. V\'azquez P. Wagner R. Wallny S.M. Wang D. Waters W.C. Wester III D. Whiteson A.B. Wicklund S. Wilbur H.H. Williams J.S. Wilson P. Wilson B.L. Winer P. Wittich S. Wolbers H. Wolfe T. Wright X. Wu Z. Wu K. Yamamoto D. Yamato T. Yang U.K. Yang Y.C. Yang W.-M. Yao G.P. Yeh K. Yi J. Yoh K. Yorita T. Yoshida G.B. Yu I. Yu A.M. Zanetti Y. Zeng C. Zhou S. Zucchelli
Authors on Pith no claims yet
classification ✦ hep-ex
keywords gammabosonbranchingcollisionsdecaysfirstlimitsneutral
0
0 comments X
read the original abstract

A search for forbidden and exotic Z boson decays in the diphoton mass spectrum is presented for the first time in hadron collisions, based on data corresponding to 10.0 fb^-1 of integrated luminosity from proton-antiproton collisions at sqrt(s) = 1.96 TeV collected by the CDF experiment. No evidence of signal is observed, and 95% credibility level Bayesian upper limits are set on the branching ratios of decays of the Z boson to a photon and neutral pion (which is detected as a photon), a pair of photons, and a pair of neutral pions. The observed branching ratio limits are 2.01 x 10^-5 for Z to \pi^0\gamma, 1.46 x 10^-5 for Z to \gamma\gamma, and 1.52 x 10^-5 for Z to \pi^0\pi^0. The Z to \pi^0\gamma\ and Z to \gamma\gamma\ limits improve by factors of 2.6 and 3.6, respectively, the most stringent results from other experiments. The Z to \pi^0\pi^0 branching ratio limit is the first experimental result on this decay.

This paper has not been read by Pith yet.

discussion (0)

Sign in with ORCID, Apple, or X to comment. Anyone can read and Pith papers without signing in.