J. P. Alexander
Cornell University
836 Papers
2.8K Citations
J. P. Alexander is an academic researcher from Cornell University. The author has contributed to research in topics: Large Hadron Collider & Branching fraction. The author has an hindex of 89, co-authored 737 publications.
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Papers
Observation of an excited charmed baryon decaying into Xi(c)(0)pi(
L. Gibbons,S. D. Johnson,Y. Kwon,S. Roberts,E. H. Thorndike,C. P. Jessop,K. Lingel,H. Marsiske,M. L. Perl,S. F. Schaffner,R. Wang,T. E. Coan,J. Dominick,V. Fadeyev,I. Korolkov,M. Lambrecht,S. Sanghera,V. Shelkov,Ryszard Stroynowski,I. Volobouev,G. Wei,Marina Artuso,A. Efimov,M. Gao,M. Goldberg,D. He,N. Horwitz,Sacha E Kopp,G. C. Moneti,R. Mountain,Yurii V. Mukhin,S. Playfer,Tomasz Skwarnicki,Sheldon Stone,Xiangjun Xing,J. Bartelt,S. E. Csorna,Vivek Jain,Sz Márka,A. Freyberger,D. Gibaut,K. Kinoshita,P. Pomianowski,S. Schrenk,D. Cinabro,B. C. Barish,M. Chadha,S. Chan,G. Eigen,J. S. Miller,C. O'Grady,M. Schmidtler,J. Urheim,A. J. Weinstein,Frank Würthwein,D. M. Asner,M. Athanas,Daniel W. Bliss,W. S. Brower,G. Masek,H. P. Paar,J. Gronberg,C. M. Korte,R. Kutschke,S. Menary,R. J. Morrison,S. Nakanishi,H. N. Nelson,T. K. Nelson,C. Qiao,Jeffrey Richman,D. Roberts,Anders Ryd,H. Tajima,Michael S. Witherell,R. Balest,K. Cho,W. T. Ford,M. Lohner,Harold S. Park,P. Rankin,J. Roy,J. G. Smith,J. P. Alexander,C. Bebek,B. E. Berger,Karl Berkelman,Kenneth Bloom,D. G. Cassel,H. A. Cho,D. M. Coffman,D. S. Crowcroft,M. Dickson,P. S. Drell,D. J. Dumas,R. Ehrlich,R. Elia,P. Gaidarev,B. Gittelman,S. W. Gray,D. L. Hartill,B. K. Heltsley,C. D. Jones,S. L. Jones,J. Kandaswamy,N. Katayama,P. C. Kim,D. L. Kreinick,T. Lee,Yanwen Liu,G. S. Ludwig,J. Masui,J. Mevissen,N. B. Mistry,C. R. Ng,E. Nordberg,Juliet Ritchie Patterson,D. Peterson,D. Riley,A. Soffer,C. Ward,Paul Avery,C.Y. Prescott,Shengfeng Yang,John Yelton,G. W. Brandenburg,R. A. Briere,T. Liu,M. Saulnier,Richard Wilson,H. Yamamoto,T. E. Browder,F. Li,J. L. Rodriguez,T. Bergfeld,B. I. Eisenstein,J. Ernst,G. E. Gladding,G. D. Gollin,M.A. Palmer,Mats A Selen,J. J. Thaler,K. W. Edwards,K. W. Edwards,K. W. McLean,K. W. McLean,M. Ogg,M. Ogg,Alain Bellerive,Dave Britton,R. Janicek,D. B. MacFarlane,P. M. Patel,B. Spaan,A. J. Sadoff,R. Ammar,Philip Baringer,Alice Bean,D. Z. Besson,D. Coppage,N. Copty,R. Davis,N. Hancock,S. Kotov,Ilya Kravchenko,N. Kwak,Yuichi Kubota,M. Lattery,J. K. Nelson,S. Patton,R. Poling,T. Riehle,V. Savinov,M. S. Alam,I. J. Kim,Z. Ling,A. H. Mahmood,J. J. O'Neill,H. Severini,C. R. Sun,S.C. Timm,F. R. Wappler,J. E. Duboscq,R. Fulton,D. Fujino,K. K. Gan,K. Honscheid,H. Kagan,R. D. Kass,Jungil Lee,M. Sung,A. Undrus,A. Undrus,Christopher G. White,R. Wanke,A. Wolf,M. M. Zoeller,X. Fu,B. Nemati,S. J. Richichi,W. R. Ross,P. Skubic,Michael Wood,M. Bishai,J. Fast,E. Gerndt,J. W. Hinson,T. Miao,D. H. Miller,M. Modesitt,E. I. Shibata,Ian Shipsey,Pu Wang +212 more
TL;DR: Using data recorded by the CLEO-II detector at CESR, the first observation of an excited charmed baryon decaying into {Xi}{sub c}{sup 0}{pi}{sup +}.
Observation of the Cabibbo-suppressed charmed baryon decay Λc(+)→pφ
J. P. Alexander,C. Bebek,B. E. Berger,Karl Berkelman,Kenneth Bloom,T. E. Browder,T. E. Browder,D. G. Cassel,H. A. Cho,D. M. Coffman,D. S. Crowcroft,M. Dickson,P. S. Drell,D. J. Dumas,R. Ehrlich,R. Elia,P. Gaidarev,Maurice Garcia-Sciveres,B. Gittelman,S. W. Gray,D. L. Hartill,B. K. Heltsley,Shawn W. Henderson,C. D. Jones,S. L. Jones,J. Kandaswamy,N. Katayama,P. C. Kim,D. L. Kreinick,T. Lee,Yanwen Liu,G. S. Ludwig,J. Masui,J. Mevissen,N. B. Mistry,C. R. Ng,E. Nordberg,Juliet Ritchie Patterson,D. Peterson,D. Riley,A. Soffer,Paul Avery,A. P. Freyberger,K. Lingel,C.Y. Prescott,Jorge Luis Rodriguez,Shengfeng Yang,John Yelton,G. W. Brandenburg,D. Cinabro,T. Liu,M. Saulnier,Richard Wilson,H. Yamamoto,T. Bergfeld,B. I. Eisenstein,J. Ernst,G. E. Gladding,G. D. Gollin,M.A. Palmer,Mats A Selen,J. J. Thaler,K. W. Edwards,K. W. Edwards,K. W. McLean,K. W. McLean,M. Ogg,M. Ogg,Alain Bellerive,Dave Britton,E. R.F. Hyatt,R. Janicek,D. B. MacFarlane,P. M. Patel,B. Spaan,A. J. Sadoff,R. Ammar,Philip Baringer,Alice Bean,D. Z. Besson,D. Coppage,N. Copty,R. Davis,N. Hancock,S. Kotov,Ilya Kravchenko,N. Kwak,Yuichi Kubota,M. Lattery,M. Momayezi,J. K. Nelson,S. Patton,R. Poling,V. Savinov,S. Schrenk,Ruifang Wang,M. S. Alam,I. J. Kim,Z. Ling,A. H. Mahmood,J. J. O'Neill,H. Severini,C. R. Sun,F. R. Wappler,G. Crawford,R. Fulton,D. Fujino,K. K. Gan,K. Honscheid,H. Kagan,R. D. Kass,Jungil Lee,M. Sung,Christopher G. White,A. Wolf,M. M. Zoeller,X. Fu,B. Nemati,W. R. Ross,P. Skubic,Michael Wood,M. Bishai,J. Fast,E. Gerndt,J. W. Hinson,T. Miao,D. H. Miller,M. Modesitt,E. I. Shibata,I. P.J. Shipsey,Pu Wang,L. Gibbons,S. D. Johnson,Y. Kwon,S. Roberts,E. H. Thorndike,T. E. Coan,J. Dominick,V. Fadeyev,I. Korolkov,M. Lambrecht,S. Sanghera,V. Shelkov,T. Skwarnicki,Ryszard Stroynowski,I. Volobouev,G. Wei,Marina Artuso,M. Gao,M. Goldberg,D. He,N. Horwitz,Sacha E Kopp,G. C. Moneti,R. Mountain,F. Muheim,Yurii V. Mukhin,S. Playfer,Sheldon Stone,Xiangjun Xing,J. Bartelt,S. E. Csorna,Vivek Jain,Sz Márka,D. Gibaut,K. Kinoshita,P. Pomianowski,B. C. Barish,M. Chadha,S. Chan,D. F. Cowen,G. Eigen,J. S. Miller,C. O'Grady,J. Urheim,A. J. Weinstein,Frank Würthwein,D. M. Asner,M. Athanas,Daniel W. Bliss,W. S. Brower,G. Masek,H. P. Paar,J. Gronberg,C. M. Korte,R. Kutschke,S. Menary,R. J. Morrison,S. Nakanishi,H. N. Nelson,T. K. Nelson,C. Qiao,Jeffrey Richman,D. Roberts,Anders Ryd,H. Tajima,Michael S. Witherell,R. Balest,K. Cho,W. T. Ford,M. Lohner,Harold S. Park,P. Rankin,J. G. Smith +203 more
TL;DR: In this paper, the authors report the observation of the Cabibbo-suppressed decays Λ_c^+→pK^-K^+ and Λc^ +→pφ using data collected with the CLEO II detector at CESR.
Measurement of the relative branching fraction of Y(4S) to charged and neutral B-meson pairs
J. P. Alexander,R. Baker,C. Bebek,B. E. Berger,Karl Berkelman,F. Blanc,V. Boisvert,D. G. Cassel,M. Dickson,P. S. Drell,K. M. Ecklund,R. Ehrlich,A. D. Foland,P. Gaidarev,L. K. Gibbons,B. Gittelman,S. W. Gray,D. L. Hartill,B. K. Heltsley,P. I. Hopman,C. D. Jones,D. L. Kreinick,M. Lohner,A. Magerkurth,T. O. Meyer,N. B. Mistry,E. Nordberg,Juliet Ritchie Patterson,D. Peterson,D. Riley,J. G. Thayer,P. G. Thies,B. Valant-Spaight,Andreas Warburton,Paul Avery,C.Y. Prescott,A. I. Rubiera,John Yelton,J. Zheng,G. W. Brandenburg,A. Ershov,Y. S. Gao,D. Y.J. Kim,Richard Wilson,T. E. Browder,Y. Li,J. L. Rodriguez,H. Yamamoto,T. Bergfeld,B. I. Eisenstein,J. Ernst,G. E. Gladding,G. D. Gollin,R. M. Hans,E. Johnson,I. Karliner,M. A. Marsh,M.A. Palmer,C. Plager,C. Sedlack,Mats A Selen,J. J. Thaler,J. Williams,K. W. Edwards,R. Janicek,P. M. Patel,A. J. Sadoff,R. Ammar,Alice Bean,D. Z. Besson,R. Davis,N. Kwak,X. Zhao,S. Anderson,V. V. Frolov,Yuichi Kubota,S. J. Lee,R. Mahapatra,J. J. O'Neill,R. Poling,T. Riehle,A. Smith,J. Urheim,S. Ahmed,M. S. Alam,S. B. Athar,L. Jian,L. Ling,A. H. Mahmood,M. Saleem,S.C. Timm,F. R. Wappler,A. Anastassov,J. E. Duboscq,E. Eckhart,K. K. Gan,C. Gwon,T. Hart,K. Honscheid,D. Hufnagel,H. Kagan,R. D. Kass,T. K. Pedlar,H. Schwarthoff,J. B. Thayer,E. von Toerne,M. M. Zoeller,S. J. Richichi,Horst Severini,P. Skubic,A. Undrus,Shuai Chen,J. Fast,J. W. Hinson,Jason Sang Hun Lee,N. Menon,D. H. Miller,E. I. Shibata,I. P.J. Shipsey,V. Pavlunin,Daniel P Cronin-Hennessy,Y. Kwon,A. L. Lyon,E. H. Thorndike,C. P. Jessop,H. Marsiske,M. L. Perl,V. Savinov,D. Ugolini,X. J. Zhou,T. E. Coan,V. Fadeyev,Yurii Maravin,I. Narsky,Ryszard Stroynowski,Jianqiao Ye,T. Wlodek,Marina Artuso,R. Ayad,C. Boulahouache,K. Bukin,E. Dambasuren,S. Karamov,G. Majumder,G. C. Moneti,R. Mountain,S. Schuh,Tomasz Skwarnicki,Sheldon Stone,G. Viehhauser,Jing Wang,A. Wolf,Jiejun Wu,Sacha E Kopp,S. E. Csorna,I. Danko,K. W. McLean,Sz Márka,Z. Xu,R. Godang,K. Kinoshita,I. C. Lai,S. Schrenk,G. Bonvicini,D. Cinabro,S. McGee,L. P. Perera,G. J. Zhou,E. Lipeles,M. Schmidtler,A. Shapiro,W. M. Sun,A. J. Weinstein,Frank Würthwein,D. E. Jaffe,G. Masek,H. P. Paar,E. M. Potter,S. Prell,Vivek Sharma,D. M. Asner,A. Eppich,T. S. Hill,R. J. Morrison,R. A. Briere,B. H. Behrens,W. T. Ford,A. Gritsan,J. Roy,J. G. Smith +189 more
TL;DR: This production ratio and its uncertainty apply to all exclusive B-meson branching fractions measured at the Upsilon(4S) resonance.
Improved measurement of the pseudoscalar decay constant fDs
M. Chada,S. Chan,G. Eigen,J. S. Miller,C. O'Grady,M. Schmidtler,J. Urheim,A. J. Weinstein,Frank Würthwein,D. W. Bliss,G. Masek,H. P. Paar,S. Prell,Vivek Sharma,D. M. Asner,J. Gronberg,T. S. Hill,Dj Lange,R. J. Morrison,H. N. Nelson,T. K. Nelson,D. Roberts,Anders Ryd,R. Balest,B. H. Behrens,W. T. Ford,Harold S. Park,J. Roy,J. G. Smith,J. P. Alexander,R. Baker,C. Bebek,B. E. Berger,Karl Berkelman,Kenneth Bloom,V. Boisvert,D. G. Cassel,D. S. Crowcroft,M. Dickson,S. von Dombrowski,P. S. Drell,K. M. Ecklund,R. Ehrlich,A. D. Foland,P. Gaidarev,L. K. Gibbons,B. Gittelman,S. W. Gray,D. L. Hartill,B. K. Heltsley,P. I. Hopman,J. Kandaswamy,P. C. Kim,D. L. Kreinick,T. Lee,Yanwen Liu,N. B. Mistry,C. R. Ng,E. Nordberg,M. Ogg,M. Ogg,Juliet Ritchie Patterson,D. Peterson,D. Riley,A. Soffer,B. Valant-Spaight,C. Ward,M. Athanas,Paul Avery,C. D. Jones,M. Lohner,S. Patton,C.Y. Prescott,John Yelton,J. Zheng,G. W. Brandenburg,R. A. Briere,A. Ershov,Y. S. Gao,D. Y.J. Kim,Richard Wilson,H. Yamamoto,T. E. Browder,Y. Li,J. L. Rodriguez,T. Bergfeld,B. I. Eisenstein,J. Ernst,G. E. Gladding,G. D. Gollin,R. M. Hans,E. Johnson,I. Karliner,M. A. Marsh,M.A. Palmer,Mats A Selen,J. J. Thaler,K. W. Edwards,Alain Bellerive,R. Janicek,D. B. MacFarlane,P. M. Patel,A. J. Sadoff,R. Ammar,Philip Baringer,Alice Bean,D. Z. Besson,D. Coppage,C. Darling,R. Davis,S. Kotov,Ilya Kravchenko,N. Kwak,L. Zhou,S. Anderson,Yuichi Kubota,S. J. Lee,J. J. O'Neill,R. Poling,T. Riehle,A. Smith,M. S. Alam,S. B. Athar,Z. Ling,A. H. Mahmood,S.C. Timm,F. R. Wappler,A. Anastassov,J. E. Duboscq,D. Fujino,D. Fujino,K. K. Gan,T. Hart,K. Honscheid,H. Kagan,R. D. Kass,Jungil Lee,M. B. Spencer,M. Sung,A. Undrus,A. Undrus,A. Wolf,M. M. Zoeller,B. Nemati,S. J. Richichi,W. R. Ross,Horst Severini,P. Skubic,M. Bishai,J. Fast,J. W. Hinson,N. Menon,D. H. Miller,E. I. Shibata,I. P.J. Shipsey,M. Yurko,S. Glenn,S. D. Johnson,Y. Kwon,Y. Kwon,S. Roberts,E. H. Thorndike,C. P. Jessop,K. Lingel,H. Marsiske,M. L. Perl,V. Savinov,D. Ugolini,R. Wang,Xingjiang Zhou,T. E. Coan,V. Fadeyev,I. Korolkov,Yurii Maravin,I. Narsky,V. Shelkov,J. Staeck,Ryszard Stroynowski,I. Volobouev,Jianqiao Ye,Marina Artuso,F. Azfar,A. Efimov,M. Goldberg,D. He,Sacha E Kopp,G. C. Moneti,R. Mountain,S. Schuh,Tomasz Skwarnicki,Sheldon Stone,G. Viehhauser,Xiangjun Xing,J. Bartelt,S. E. Csorna,Vivek Jain,Vivek Jain,K. W. McLean,Sz Márka,R. Godang,K. Kinoshita,I. C. Lai,P. Pomianowski,S. Schrenk,G. Bonvicini,D. Cinabro,Richard L. Greene,L. P. Perera,G. J. Zhou +208 more
TL;DR: In this paper, the authors present the PhysRevD model for the first time, which is based on the idea of the EKF model, and also available electronically from http://journals.aps.org/prd/abstract/10.1103/PhysRevD.58.032002.
New measurements of Y(1S) decays to charmonium final states
R. A. Briere,G. P. Chen,Thomas Ferguson,G. Tatishvili,Hans J. Vogel,M. E. Watkins,N. E. Adam,J. P. Alexander,Karl Berkelman,D. G. Cassel,J. E. Duboscq,K. M. Ecklund,R. Ehrlich,L. Fields,R. S. Galik,L. K. Gibbons,B. Gittelman,R. Gray,S. W. Gray,D. L. Hartill,B. K. Heltsley,D. Hertz,L. Hsu,C. D. Jones,J. Kandaswamy,D. L. Kreinick,V. E. Kuznetsov,H. Mahlke-Krüger,T. O. Meyer,Peter Onyisi,Juliet Ritchie Patterson,D. Peterson,J. Pivarski,D. Riley,Jonathan L. Rosner,Anders Ryd,A. J. Sadoff,H. Schwarthoff,M. R. Shepherd,Werner Sun,J. G. Thayer,D. Urner,T. Wilksen,M. Weinberger,S. B. Athar,Paul Avery,L. Breva-Newell,R. Patel,V. Potlia,H. Stoeck,John Yelton,P. Rubin,B. I. Eisenstein,George D Gollin,I. Karliner,Dong-Hyun Kim,N. Lowrey,P. Naik,C. Sedlack,Mats A Selen,J. J. Thaler,J. Williams,J. Wiss,K. W. Edwards,D. Z. Besson,K. Y. Gao,D. T. Gong,Yuichi Kubota,Shuwang Li,R. Poling,A. W. Scott,A. Smith,C. J. Stepaniak,J. Urheim,Z. Metreveli,Kamal K. Seth,Amiran Tomaradze,Peter K. Zweber,J. A. Ernst,K. E. Arms,K. K. Gan,Horst Severini,P. Skubic,D. M. Asner,S. A. Dytman,S. Mehrabyan,James Mueller,V. Savinov,Z. Li,Alan D. Lopez,H. Mendez,J. E. Ramirez,G. S. Huang,D. H. Miller,V. Pavlunin,B. Sanghi,E. I. Shibata,I. P.J. Shipsey,G. S. Adams,M. Chasse,J. P. Cummings,I. Danko,J. Napolitano,Daniel P Cronin-Hennessy,C. S. Park,W. Park,J. B. Thayer,E. H. Thorndike,T. E. Coan,Y. S. Gao,F. Liu,Ryszard Stroynowski,Marina Artuso,C. Boulahouache,S. Blusk,J. Butt,E. Dambasuren,O. Dorjkhaidav,N. Menaa,R. Mountain,H. Muramatsu,R. Nandakumar,R. Redjimi,R. Sia,Tomasz Skwarnicki,Sheldon Stone,J. C. Wang,K. Zhang,A. H. Mahmood,S. E. Csorna,G. Bonvicini,D. Cinabro,M. Dubrovin,Adolf Bornheim,E. Lipeles,S. P. Pappas,A. J. Weinstein +136 more
TL;DR: In this paper, the CLEO III detector at CESR has been used to obtain a large amount of data for the analysis of the branching fraction of the 1S decays to charmonium final states.