Related papers: High statistics study of the K- -> pi0 e- nu decay

Measurement of the K_L \to \pi\mu\nu form factor parameters with the KLOE detector

Using 328 pb^{-1}of data collected at DAFNE corresponding to $\sim$ 1.8 million $K_L\to \pi\mu\nu$ decays, we have measured the $K_{\mu 3}$ form factor parameters. The structure of the $K-\pi$ vector-current provides information about the…

High Energy Physics - Experiment · Physics 2012-08-27 KLOE Collaboration

Study of the decay phi--> f0(980)g --> pi+pi-g with the KLOE detector

We measured, with the KLOE detector, the spectrum of pi+pi- invariant mass in a sample of 6.7 x 10^5 e+e- --> pi+pi-g events with the photon at large polar angle (theta_g>45^o) at a centre of mass energy sqrt(s) around the phi mass. We…

High Energy Physics - Experiment · Physics 2012-08-27 KLOE collaboration

Experimental search for the decay mode K_L -> pi^0 gamma e^+ e^-

We report on results of a search for the decay mode K_L -> pi^0 gamma e^+ e^- conducted by the E162 experiment at KEK. We observed no events and set a 90% confidence level upper limit of Br(K_L -> pi^0 gamma e^+ e^-)< 7.1x10^{-7} for its…

High Energy Physics - Experiment · Physics 2008-11-26 K. Murakami , Y. Hemmi , H. Kurashige , Y. Matono , T. Nomura , H. Sakamoto , N. Sasao , M. Suehiro , Y. Takeuchi , Y. Fukushima , Y. Ikegami , T. T. Nakamura , T. Taniguchi , M. Asai

Dispersive representation of the scalar and vector Kpi form factors for tau --> K pi nu_tau and K_{l3} decays

Recently, the tau --> K pi nu_tau decay spectrum has been measured by the Belle and BaBar collaborations. In this work, we present an analysis of such decays introducing a dispersive parametrization for the vector and scalar Kpi form…

High Energy Physics - Phenomenology · Physics 2015-05-27 Véronique Bernard , Diogo R. Boito , Emilie Passemar

$K_{e3}$ decay studies in OKA experiment

Recent results from OKA setup concerning form factor studies in $K_{e3}$ decay are presented. About 5.25M events are selected for the analysis. The linear and quadratic slopes for the decay formfactor $f_{+}(t)$ are measured:…

High Energy Physics - Experiment · Physics 2018-03-14 O. P. Yushchenko , V. F. Kurshetsov , A. P. Filin , S. A. Akimenko , A. V. Artamonov , A. M. Blik , V. V. Brekhovskikh , V. S. Burtovoy , S. V. Donskov , A. V. Inyakin , A. M. Gorin , G. V. Khaustov , S. A. Kholodenko , V. N. Kolosov , A. S. Konstantinov , V. M. Leontiev , V. A. Lishin , M. V. Medynsky , Yu. V. Mikhailov , V. F. Obraztsov , V. A. Polyakov , A. V. Popov , V. I. Romanovsky , V. I. Rykalin , A. S. Sadovsky , V. D. Samoilenko , V. K. Semenov , O. V. Stenyakin , O. G. Tchikilev , V. A. Uvarov , V. A. Duk , S. N. Filippov , E. V. Guschin , Yu. G. Kudenko , A. A. Khudyakov , V. I. Kravtsov , A. Yu. Polyarush , V. N. Bychkov , G. D. Kekelidze , V. M. Lysan , B. Zh. Zalikhanov

Search for the decay K_L-> pi^0 nu nubar

We report on a search for the rare decay K_L -> pi^0 nu nubar in the KTeV experiment at Fermilab. We searched for two-photon events whose kinematics were consistent with an isolated pi^0 coming from the decay K_L -> pi^0 nu nubar. One…

High Energy Physics - Experiment · Physics 2008-11-26 J. Adams

Studies of the decay $D^+_s\to K^+K^- \mu^+ \nu_{\mu}$

The $D^+_s\to K^+K^-\mu^+\nu_\mu$ decay is studied based on 7.33 fb$^{-1}$ of $e^+e^-$ collision data collected with the BESIII detector at center-of-mass energies in the range from 4.128 to 4.226 GeV. The absolute branching fraction is…

High Energy Physics - Experiment · Physics 2023-07-19 BESIII Collaboration , M. Ablikim , M. N. Achasov , P. Adlarson , X. C. Ai , R. Aliberti , A. Amoroso , M. R. An , Q. An , Y. Bai , O. Bakina , I. Balossino , Y. Ban , V. Batozskaya , K. Begzsuren , N. Berger , M. Berlowski , M. Bertani , D. Bettoni , F. Bianchi , E. Bianco , J. Bloms , A. Bortone , I. Boyko , R. A. Briere , A. Brueggemann , H. Cai , X. Cai , A. Calcaterra , G. F. Cao , N. Cao , S. A. Cetin , J. F. Chang , T. T. Chang , W. L. Chang , G. R. Che , G. Chelkov , C. Chen , Chao Chen , G. Chen , H. S. Chen , M. L. Chen , S. J. Chen , S. M. Chen , T. Chen , X. R. Chen , X. T. Chen , Y. B. Chen , Y. Q. Chen , Z. J. Chen , W. S. Cheng , S. K. Choi , X. Chu , G. Cibinetto , S. C. Coen , F. Cossio , J. J. Cui , H. L. Dai , J. P. Dai , A. Dbeyssi , R. E. de Boer , D. Dedovich , Z. Y. Deng , A. Denig , I. Denysenko , M. Destefanis , F. De Mori , B. Ding , X. X. Ding , Y. Ding , Y. Ding , J. Dong , L. Y. Dong , M. Y. Dong , X. Dong , S. X. Du , Z. H. Duan , P. Egorov , Y. L. Fan , J. Fang , S. S. Fang , W. X. Fang , Y. Fang , R. Farinelli , L. Fava , F. Feldbauer , G. Felici , C. Q. Feng , J. H. Feng , K Fischer , M. Fritsch , C. Fritzsch , C. D. Fu , J. L. Fu , Y. W. Fu , H. Gao , Y. N. Gao , Yang Gao , S. Garbolino , I. Garzia , P. T. Ge , Z. W. Ge , C. Geng , E. M. Gersabeck , A Gilman , K. Goetzen , L. Gong , W. X. Gong , W. Gradl , S. Gramigna , M. Greco , M. H. Gu , Y. T. Gu , C. Y Guan , Z. L. Guan , A. Q. Guo , L. B. Guo , M. J. Guo , R. P. Guo , Y. P. Guo , A. Guskov , T. T. Han , W. Y. Han , X. Q. Hao , F. A. Harris , K. K. He , K. L. He , F. H. H. Heinsius , C. H. Heinz , Y. K. Heng , C. Herold , T. Holtmann , P. C. Hong , G. Y. Hou , X. T. Hou , Y. R. Hou , Z. L. Hou , H. M. Hu , J. F. Hu , T. Hu , Y. Hu , G. S. Huang , K. X. Huang , L. Q. Huang , X. T. Huang , Y. P. Huang , T. Hussain , N Hüsken , W. Imoehl , M. Irshad , J. Jackson , S. Jaeger , S. Janchiv , J. H. Jeong , Q. Ji , Q. P. Ji , X. B. Ji , X. L. Ji , Y. Y. Ji , X. Q. Jia , Z. K. Jia , P. C. Jiang , S. S. Jiang , T. J. Jiang , X. S. Jiang , Y. Jiang , J. B. Jiao , Z. Jiao , S. Jin , Y. Jin , M. Q. Jing , T. Johansson , X. K. , S. Kabana , N. Kalantar-Nayestanaki , X. L. Kang , X. S. Kang , R. Kappert , M. Kavatsyuk , B. C. Ke , A. Khoukaz , R. Kiuchi , R. Kliemt , O. B. Kolcu , B. Kopf , M. K. Kuessner , A. Kupsc , W. Kühn , J. J. Lane , P. Larin , A. Lavania , L. Lavezzi , T. T. Lei , Z. H. Lei , H. Leithoff , M. Lellmann , T. Lenz , C. Li , C. Li , C. H. Li , Cheng Li , D. M. Li , F. Li , G. Li , H. Li , H. B. Li , H. J. Li , H. N. Li , Hui Li , J. R. Li , J. S. Li , J. W. Li , K. L. Li , Ke Li , L. J Li , L. K. Li , Lei Li , M. H. Li , P. R. Li , Q. X. Li , S. X. Li , T. Li , W. D. Li , W. G. Li , X. H. Li , X. L. Li , Xiaoyu Li , Y. G. Li , Z. J. Li , Z. X. Li , C. Liang , H. Liang , H. Liang , H. Liang , Y. F. Liang , Y. T. Liang , G. R. Liao , L. Z. Liao , J. Libby , A. Limphirat , D. X. Lin , T. Lin , B. J. Liu , B. X. Liu , C. Liu , C. X. Liu , F. H. Liu , Fang Liu , Feng Liu , G. M. Liu , H. Liu , H. B. Liu , H. M. Liu , Huanhuan Liu , Huihui Liu , J. B. Liu , J. L. Liu , J. Y. Liu , K. Liu , K. Y. Liu , Ke Liu , L. Liu , L. C. Liu , Lu Liu , M. H. Liu , P. L. Liu , Q. Liu , S. B. Liu , T. Liu , W. K. Liu , W. M. Liu , X. Liu , Y. Liu , Y. Liu , Y. B. Liu , Z. A. Liu , Z. Q. Liu , X. C. Lou , F. X. Lu , H. J. Lu , J. G. Lu , X. L. Lu , Y. Lu , Y. P. Lu , Z. H. Lu , C. L. Luo , M. X. Luo , T. Luo , X. L. Luo , X. R. Lyu , Y. F. Lyu , F. C. Ma , H. L. Ma , J. L. Ma , L. L. Ma , M. M. Ma , Q. M. Ma , R. Q. Ma , R. T. Ma , X. Y. Ma , Y. Ma , Y. M. Ma , F. E. Maas , M. Maggiora , S. Malde , A. Mangoni , Y. J. Mao , Z. P. Mao , S. Marcello , Z. X. Meng , J. G. Messchendorp , G. Mezzadri , H. Miao , T. J. Min , R. E. Mitchell , X. H. Mo , N. Yu. Muchnoi , Y. Nefedov , F. Nerling , I. B. Nikolaev , Z. Ning , S. Nisar , Y. Niu , S. L. Olsen , Q. Ouyang , S. Pacetti , X. Pan , Y. Pan , A. Pathak , P. Patteri , Y. P. Pei , M. Pelizaeus , H. P. Peng , K. Peters , J. L. Ping , R. G. Ping , S. Plura , S. Pogodin , V. Prasad , F. Z. Qi , H. Qi , H. R. Qi , M. Qi , T. Y. Qi , S. Qian , W. B. Qian , C. F. Qiao , J. J. Qin , L. Q. Qin , X. P. Qin , X. S. Qin , Z. H. Qin , J. F. Qiu , S. Q. Qu , C. F. Redmer , K. J. Ren , A. Rivetti , V. Rodin , M. Rolo , G. Rong , Ch. Rosner , S. N. Ruan , N. Salone , A. Sarantsev , Y. Schelhaas , K. Schoenning , M. Scodeggio , K. Y. Shan , W. Shan , X. Y. Shan , J. F. Shangguan , L. G. Shao , M. Shao , C. P. Shen , H. F. Shen , W. H. Shen , X. Y. Shen , B. A. Shi , H. C. Shi , J. L. Shi , J. Y. Shi , Q. Q. Shi , R. S. Shi , X. Shi , J. J. Song , T. Z. Song , W. M. Song , Y. J. Song , Y. X. Song , S. Sosio , S. Spataro , F. Stieler , Y. J. Su , G. B. Sun , G. X. Sun , H. Sun , H. K. Sun , J. F. Sun , K. Sun , L. Sun , S. S. Sun , T. Sun , W. Y. Sun , Y. Sun , Y. J. Sun , Y. Z. Sun , Z. T. Sun , Y. X. Tan , C. J. Tang , G. Y. Tang , J. Tang , Y. A. Tang , L. Y Tao , Q. T. Tao , M. Tat , J. X. Teng , V. Thoren , W. H. Tian , W. H. Tian , Y. Tian , Z. F. Tian , I. Uman , S. J. Wang , B. Wang , B. L. Wang , Bo Wang , C. W. Wang , D. Y. Wang , F. Wang , H. J. Wang , H. P. Wang , J. P. Wang , K. Wang , L. L. Wang , M. Wang , Meng Wang , S. Wang , S. Wang , T. Wang , T. J. Wang , W. Wang , W. Wang , W. P. Wang , X. Wang , X. F. Wang , X. J. Wang , X. L. Wang , Y. Wang , Y. D. Wang , Y. F. Wang , Y. H. Wang , Y. N. Wang , Y. Q. Wang , Yaqian Wang , Yi Wang , Z. Wang , Z. L. Wang , Z. Y. Wang , Ziyi Wang , D. Wei , D. H. Wei , F. Weidner , S. P. Wen , C. W. Wenzel , U. W. Wiedner , G. Wilkinson , M. Wolke , L. Wollenberg , C. Wu , J. F. Wu , L. H. Wu , L. J. Wu , X. Wu , X. H. Wu , Y. Wu , Y. J. Wu , Z. Wu , L. Xia , X. M. Xian , T. Xiang , D. Xiao , G. Y. Xiao , H. Xiao , S. Y. Xiao , Y. L. Xiao , Z. J. Xiao , C. Xie , X. H. Xie , Y. Xie , Y. G. Xie , Y. H. Xie , Z. P. Xie , T. Y. Xing , C. F. Xu , C. J. Xu , G. F. Xu , H. Y. Xu , Q. J. Xu , Q. N. Xu , W. Xu , W. L. Xu , X. P. Xu , Y. C. Xu , Z. P. Xu , Z. S. Xu , F. Yan , L. Yan , W. B. Yan , W. C. Yan , X. Q. Yan , H. J. Yang , H. L. Yang , H. X. Yang , Tao Yang , Y. Yang , Y. F. Yang , Y. X. Yang , Yifan Yang , Z. W. Yang , Z. P. Yao , M. Ye , M. H. Ye , J. H. Yin , Z. Y. You , B. X. Yu , C. X. Yu , G. Yu , J. S. Yu , T. Yu , X. D. Yu , C. Z. Yuan , L. Yuan , S. C. Yuan , X. Q. Yuan , Y. Yuan , Z. Y. Yuan , C. X. Yue , A. A. Zafar , F. R. Zeng , X. Zeng , Y. Zeng , Y. J. Zeng , X. Y. Zhai , Y. C. Zhai , Y. H. Zhan , A. Q. Zhang , B. L. Zhang , B. X. Zhang , D. H. Zhang , G. Y. Zhang , H. Zhang , H. H. Zhang , H. H. Zhang , H. Q. Zhang , H. Y. Zhang , J. J. Zhang , J. L. Zhang , J. Q. Zhang , J. W. Zhang , J. X. Zhang , J. Y. Zhang , J. Z. Zhang , Jianyu Zhang , Jiawei Zhang , L. M. Zhang , L. Q. Zhang , Lei Zhang , P. Zhang , Q. Y. Zhang , Shuihan Zhang , Shulei Zhang , X. D. Zhang , X. M. Zhang , X. Y. Zhang , X. Y. Zhang , Y. Zhang , Y. Zhang , Y. T. Zhang , Y. H. Zhang , Yan Zhang , Yao Zhang , Z. H. Zhang , Z. L. Zhang , Z. Y. Zhang , Z. Y. Zhang , G. Zhao , J. Zhao , J. Y. Zhao , J. Z. Zhao , Lei Zhao , Ling Zhao , M. G. Zhao , S. J. Zhao , Y. B. Zhao , Y. X. Zhao , Z. G. Zhao , A. Zhemchugov , B. Zheng , J. P. Zheng , W. J. Zheng , Y. H. Zheng , B. Zhong , X. Zhong , H. Zhou , L. P. Zhou , X. Zhou , X. K. Zhou , X. R. Zhou , X. Y. Zhou , Y. Z. Zhou , J. Zhu , K. Zhu , K. J. Zhu , L. Zhu , L. X. Zhu , S. H. Zhu , S. Q. Zhu , T. J. Zhu , W. J. Zhu , Y. C. Zhu , Z. A. Zhu , J. H. Zou , J. Zu

Measurement of the FCNC decays K+- --> pi+- l+ l- by the NA48/2 experiment at CERN

A sample of 7253 $K^\pm\to\pi^\pm e^+e^-$ decay candidates with 1.0% background contamination has been collected by the NA48/2 experiment at the CERN SPS, which allowed a precise measurement of the form factor, the branching ratio, and the…

High Energy Physics - Experiment · Physics 2010-05-07 Evgueni Goudzovski

Measurement of the K_L -> e+ e- e+ e- Decay Rate

The decay rate of the neutral long-lived K meson into the e+ e- e+ e- final state has been measured with the NA48 detector at the CERN SPS. Using data collected in 1999, a total of 132 events has been observed with negligible background.…

High Energy Physics - Experiment · Physics 2009-10-31 A. Lai

Isoscalar and isovector kaon form factors from $e^+e^-$ and $\tau$ data

The recent precise measurements of the $e^+e^-\to K_SK_L$ and $e^+e^-\to K^+K^-$ cross sections and the hadronic spectral function of the $\tau^-\to K^-K_S\nu_\tau$ decay are used to extract the isoscalar and isovector electromagnetic kaon…

High Energy Physics - Phenomenology · Physics 2020-01-08 K. I. Beloborodov , V. P. Druzhinin , S. I. Serednyakov

Observation of the decays B- to Ds(*)+ K- pi-

We report first observations of the decays B- to Ds(*)+ K- pi-, using 292 fb^-1 of data collected at Upsilon(4S) resonance energy by the BaBar detector at the PEP II e+ e- collider. The branching fractions are measured to be B(B- to Ds+ K-…

High Energy Physics - Experiment · Physics 2007-05-23 The BABAR Collaboration , B. Aubert

Precise measurement of the K+- --> pi+-e+e- decay

A sample of 7253 $K^\pm\to\pi^\pm e^+e^-(\gamma)$ decay candidates with 1.0% background contamination has been collected by the NA48/2 experiment at the CERN SPS, allowing a precise measurement of the decay properties. The branching ratio…

High Energy Physics - Experiment · Physics 2014-11-18 2 collaboration

Evidence of B-->tau nu decays with hadronic B tags

We present a search for the decay B+ -->tau+ nu using 467.8 x 10^6 B B pairs collected at the Y(4S) resonance with the BaBar detector at the SLAC PEP-II B-Factory. We select a sample of events with one completely reconstructed B- in the…

High Energy Physics - Experiment · Physics 2013-08-14 BABAR Collaboration

Measurements of Ke4 and K+- -> pi0 pi0 pi+- decays

The NA48/2 experiment at the CERN SPS collected in 2003 and 2004 large samples of the decays K+- -> pi+ pi- e+- nu (Ke4+-), K+- -> pi0 pi0 e+- nu (Ke400) and K+- -> pi0 pi0 pi+-. From the Ke4+- form factors and from the cusp in the M00^2…

High Energy Physics - Experiment · Physics 2017-08-23 L. Masetti

Measurement of the Form-Factor Slopes for the Decay KLe3 with the KLOE Detector

We present a measurement of the K-pi vector current form-factor parameters for the Ke3 decay. We use 328 pb$^{-1}$ of data collected in 2001 and 2002, corresponding to about 2 million Ke3 events. Measurements of semileptonic form factors…

High Energy Physics - Experiment · Physics 2009-09-29 KLOE collaboration , F. Ambrosino

Study of Dalitz decay phi -> eta e+e- with KLOE detector

We have studied the vector to pseudoscalar conversion decay phi -> eta e+e-, with eta -> pi0pi0pi0, with the KLOE detector at DAPHNE. The data set of 1.7 fb-1 of e+e- collisions at sqrt(s)~Mphi contains a clear conversion decay signal of…

High Energy Physics - Experiment · Physics 2015-06-22 D. Babusci , I. Balwierz-Pytko , G. Bencivenni , C. Bloise , F. Bossi , P. Branchini , A. Budano , L. Caldeira Balkestahl , F. Ceradini , P. Ciambrone , F. Curciarello , E. Czerwinski , E. Dane' , V. De Leo , E. De Lucia , G. De Robertis , A. De Santis , P. De Simone , A. Di Cicco , A. Di Domenico , R. Di Salvo , D. Domenici , O. Erriquez , G. Fanizzi , A. Fantini , G. Felici , S. Fiore , P. Franzini , A. Gajos , P. Gauzzi , G. Giardina , S. Giovannella , E. Graziani , F. Happacher , L. Heijkenskjold , B. Hoistad , T. Johansson , D. Kaminska , W. Krzemien , A. Kupsc , J. Lee-Franzini , F. Loddo , S. Loffredo , G. Mandaglio , M. Martemianov , M. Martini , M. Mascolo , R. Messi , S. Miscetti , G. Morello , D. Moricciani , P. Moskal , A. Palladino , A. Passeri , V. Patera. Prado Longhi , A. Ranieri , P. Santangelo , I. Sarra , M. Schioppa , B. Sciascia , M. Silarski , L. Tortora , G. Venanzoni , W. Wislicki , M. Wolke

A Study of b --> c and b -->u Interference in the Decay B- --> [K+ pi-]_D K*-

Using a sample of 232 x 10^6 Upsilon(4S)--> B B-bar events collected with the BABAR detector at the PEP-II B-factory we study the decay B- --> [K+ pi-]_D K*- where the K+ pi- is either from a Cabibbo-favored D0-bar decay or…

High Energy Physics - Experiment · Physics 2010-03-19 B. Aubert , BABAR Collaboration

Vector-Tensor and Vector-Vector Decay Amplitude Analysis of B0->phi K*0

We perform an amplitude analysis of the decays B0->phi K^*_2(1430)0, phi K^*(892)0, and phi(K pi)^0_S-wave with a sample of about 384 million BBbar pairs recorded with the BABAR detector. The fractions of longitudinal polarization f_L of…

High Energy Physics - Experiment · Physics 2010-03-19 The BABAR Collaboration , B. Aubert

Search for the K(L) --> PI0 PI0 E+ E- Decay in the KTeV Experiment

The recent discovery of a large CP violating asymmetry in K(L) --> PI+ PI- E+ E- mode has prompted us to seach for the associated K(L) --> PI0 PI0 E+ E- decay mode in the KTeV-E799 experiment at Fermilab. In 2.7E+11 K(L) decays, one…

High Energy Physics - Experiment · Physics 2008-11-26 KTeV Collaboration , A. Alavi-Harati

Study of B ->K pi pi gamma Decays

Using $471 \times 10^6 ~B \bar B$ decays recorded with the \babar\ detector at the PEP-II $e^+ e^-$ storage ring, we present the time-dependent \CP\ asymmetry measurement in the radiative penguin decay mode $B^0 \rightarrow K^0_S…

High Energy Physics - Experiment · Physics 2019-08-13 Gerald Eigen