We report on a search in eþe− annihilations for new π0-like particles produced in association with a τ-lepton pair. These objects, with a similar mass and similar decay modes to π0 mesons, could provide an explanation for the non-asymptotic behavior of the pion-photon transition form factor observed by the BABAR Collaboration. No significant signal is observed, and limits on the production cross section at the level of 73 fb or 370 fb, depending on the model parameters, are determined at 90% confidence level. These upper limits lie below the cross section values needed to explain the BABAR form factor data.

Search for new pi0-like particles produced in association with a tau-lepton pair

BIANCHI, Fabrizio;DE MORI, FRANCESCA;
2014-01-01

Abstract

We report on a search in eþe− annihilations for new π0-like particles produced in association with a τ-lepton pair. These objects, with a similar mass and similar decay modes to π0 mesons, could provide an explanation for the non-asymptotic behavior of the pion-photon transition form factor observed by the BABAR Collaboration. No significant signal is observed, and limits on the production cross section at the level of 73 fb or 370 fb, depending on the model parameters, are determined at 90% confidence level. These upper limits lie below the cross section values needed to explain the BABAR form factor data.
2014
90
11
1
9
J. P. Lees;V. Poireau;V. Tisserand;E. Grauges;A. Palano;G. Eigen;B. Stugu;D. N. Brown;L. T. Kerth;Yu. G. Kolomensky;M. J. Lee;G. Lynch;H. Koch;T. Schroeder;C. Hearty;T. S. Mattison;J. A. McKenna;R. Y. So;A. Khan;V. E. Blinov;A. R. Buzykaev;V. P. Druzhinin;V. B. Golubev;E. A. Kravchenko;A. P. Onuchin;S. I. Serednyakov;Yu. I. Skovpen;E. P. Solodov;K. Yu. Todyshev;A. J. Lankford;M. Mandelkern;B. Dey;J. W. Gary;O. Long;C. Campagnari;M. Franco Sevilla;T. M. Hong;D. Kovalskyi;J. D. Richman;C. A. West;A. M. Eisner;W. S. Lockman;W. Panduro Vazquez;B. A. Schumm;A. Seiden;D. S. Chao;C. H. Cheng;B. Echenard;K. T. Flood;D. G. Hitlin;T. S. Miyashita;P. Ongmongkolkul;F. C. Porter;M. Röhrken;R. Andreassen;Z. Huard;B. T. Meadows;B. G. Pushpawela;M. D. Sokoloff;L. Sun;P. C. Bloom;W. T. Ford;A. Gaz;J. G. Smith;S. R. Wagner;R. Ayad;W. H. Toki;B. Spaan;D. Bernard;M. Verderi;S. Playfer;D. Bettoni;C. Bozzi;R. Calabrese;G. Cibinetto;E. Fioravanti;I. Garzia;E. Luppi;L. Piemontese;V. Santoro;A. Calcaterra;R. de Sangro;G. Finocchiaro;S. Martellotti;P. Patteri;I. M. Peruzzi;M. Piccolo;M. Rama;A. Zallo;R. Contri;M. Lo Vetere;M. R. Monge;S. Passaggio;C. Patrignani;E. Robutti;B. Bhuyan;V. Prasad;A. Adametz;U. Uwer;H. M. Lacker;U. Mallik;C. Chen;J. Cochran;S. Prell;H. Ahmed;A. V. Gritsan;N. Arnaud;M. Davier;D. Derkach;G. Grosdidier;F. Le Diberder;A. M. Lutz;B. Malaescu;P. Roudeau;A. Stocchi;G. Wormser;D. J. Lange;D. M. Wright;J. P. Coleman;J. R. Fry;E. Gabathuler;D. E. Hutchcroft;D. J. Payne;C. Touramanis;A. J. Bevan;F. Di Lodovico;R. Sacco;G. Cowan;J. Bougher;D. N. Brown;C. L. Davis;A. G. Denig;M. Fritsch;W. Gradl;K. Griessinger;A. Hafner;K. R. Schubert;R. J. Barlow;G. D. Lafferty;R. Cenci;B. Hamilton;A. Jawahery;D. A. Roberts;R. Cowan;G. Sciolla;R. Cheaib;P. M. Patel;S. H. Robertson;N. Neri;F. Palombo;L. Cremaldi;R. Godang;P. Sonnek;D. J. Summers;M. Simard;P. Taras;G. De Nardo;G. Onorato;C. Sciacca;M. Martinelli;G. Raven;C. P. Jessop;J. M. LoSecco;K. Honscheid;R. Kass;E. Feltresi;M. Margoni;M. Morandin;M. Posocco;M. Rotondo;G. Simi;F. Simonetto;R. Stroili;S. Akar;E. Ben-Haim;M. Bomben;G. R. Bonneaud;H. Briand;G. Calderini;J. Chauveau;Ph. Leruste;G. Marchiori;J. Ocariz;M. Biasini;E. Manoni;S. Pacetti;A. Rossi;C. Angelini;G. Batignani;S. Bettarini;M. Carpinelli;G. Casarosa;A. Cervelli;M. Chrzaszcz;F. Forti;M. A. Giorgi;A. Lusiani;B. Oberhof;E. Paoloni;A. Perez;G. Rizzo;J. J. Walsh;D. Lopes Pegna;J. Olsen;A. J. S. Smith;R. Faccini;F. Ferrarotto;F. Ferroni;M. Gaspero;L. Li Gioi;A. Pilloni;G. Piredda;C. Bünger;S. Dittrich;O. Grünberg;M. Hess;T. Leddig;C. Voß;R. Waldi;T. Adye;E. O. Olaiya;F. F. Wilson;S. Emery;G. Vasseur;F. Anulli;D. Aston;D. J. Bard;C. Cartaro;M. R. Convery;J. Dorfan;G. P. Dubois-Felsmann;W. Dunwoodie;M. Ebert;R. C. Field;B. G. Fulsom;M. T. Graham;C. Hast;W. R. Innes;P. Kim;D. W. G. S. Leith;P. Lewis;D. Lindemann;S. Luitz;V. Luth;H. L. Lynch;D. B. MacFarlane;D. R. Muller;H. Neal;M. Perl;T. Pulliam;B. N. Ratcliff;A. Roodman;A. A. Salnikov;R. H. Schindler;A. Snyder;D. Su;M. K. Sullivan;J. Va’vra;W. J. Wisniewski;H. W. Wulsin;M. V. Purohit;R. M. White;J. R. Wilson;A. Randle-Conde;S. J. Sekula;M. Bellis;P. R. Burchat;E. M. T. Puccio;M. S. Alam;J. A. Ernst;R. Gorodeisky;N. Guttman;D. R. Peimer;A. Soffer;S. M. Spanier;J. L. Ritchie;R. F. Schwitters;B. C. Wray;J. M. Izen;X. C. Lou;F. Bianchi;F. De Mori;A. Filippi;D. Gamba;L. Lanceri;L. Vitale;F. Martinez-Vidal;A. Oyanguren;P. Villanueva-Perez;J. Albert;Sw. Banerjee;A. Beaulieu;F. U. Bernlochner;H. H. F. Choi;G. J. King;R. Kowalewski;M. J. Lewczuk;T. Lueck;D. McKeen;I. M. Nugent;M. Pospelov;J. M. Roney;R. J. Sobie;N. Tasneem;T. J. Gershon;P. F. Harrison;T. E. Latham;H. R. Band;S. Dasu;Y. Pan;R. Prepost;S. L. Wu
File in questo prodotto:
File Dimensione Formato  
PhysRevD.90.112010.pdf

Accesso aperto

Tipo di file: PDF EDITORIALE
Dimensione 858.12 kB
Formato Adobe PDF
858.12 kB Adobe PDF Visualizza/Apri

I documenti in IRIS sono protetti da copyright e tutti i diritti sono riservati, salvo diversa indicazione.

Utilizza questo identificativo per citare o creare un link a questo documento: https://hdl.handle.net/2318/156477
Citazioni
  • ???jsp.display-item.citation.pmc??? ND
  • Scopus 3
  • ???jsp.display-item.citation.isi??? 3
social impact