Malcolm John: Publications

Study of e+e-→pp̄ using initial state radiation with BABAR

Physical Review D Particles Fields Gravitation and Cosmology 73:1 (2006)

Authors:

B Aubert, R Barate, D Boutigny, F Couderc, Y Karyotakis, JP Lees, V Poireau, V Tisserand, A Zghiche, E Grauges, A Palano, M Pappagallo, A Pompili, JC Chen, ND Qi, G Rong, P Wang, YS Zhu, G Eigen, I Ofte, B Stugu, GS Abrams, M Battaglia, DS Best, DN Brown, J Button-Shafer, RN Cahn, E Charles, CT Day, MS Gill, AV Gritsan, Y Groysman, RG Jacobsen, RW Kadel, JA Kadyk, LT Kerth, YG Kolomensky, G Kukartsev, G Lynch, LM Mir, PJ Oddone, TJ Orimoto, M Pripstein, NA Roe, MT Ronan, WA Wenzel, M Barrett, KE Ford, TJ Harrison, AJ Hart, CM Hawkes, SE Morgan, AT Watson, M Fritsch, K Goetzen, T Held, H Koch, B Lewandowski, M Pelizaeus, K Peters, T Schroeder, M Steinke, JT Boyd, JP Burke, WN Cottingham, D Walker, T Cuhadar-Donszelmann, BG Fulsom, C Hearty, NS Knecht, TS Mattison, JA McKenna, A Khan, P Kyberd, M Saleem, L Teodorescu, AE Blinov, VE Blinov, AD Bukin, VP Druzhinin, VB Golubev, EA Kravchenko, AP Onuchin, SI Serednyakov, YI Skovpen, EP Solodov, AN Yushkov, M Bondioli, M Bruinsma, M Chao, S Curry, I Eschrich, D Kirkby, AJ Lankford, P Lund, M Mandelkern, RK Mommsen, W Roethel, DP Stoker, S Abachi

Abstract:

The e+e-→pp̄ cross section is determined over a range of pp̄ masses, from threshold to 4.5GeV/c2, by studying the e+e-→pp̄γ process. The data set corresponds to an integrated luminosity of 232fb-1, collected with the BABAR detector at the PEP-II storage ring, at an e+e- center-of-mass energy of 10.6 GeV. The mass dependence of the ratio of electric and magnetic form factors, |GE/GM|, is measured for pp̄ masses below 3GeV/c2; its value is found to be significantly larger than 1 for masses up to 2.2GeV/c2. We also measure J/ψ→pp̄ and ψ(2S)→pp̄ branching fractions and set an upper limit on Y(4260)→pp̄ production and decay. © 2006 The American Physical Society.

More details from the publisher

More details

Study of the X(3872) and Y(4260) in B0→J/ψπ+π-K0 and B-→J/ψπ+π-K- decays

Physical Review D Particles Fields Gravitation and Cosmology 73:1 (2006)

Authors:

B Aubert, R Barate, D Boutigny, F Couderc, Y Karyotakis, JP Lees, V Poireau, V Tisserand, A Zghiche, E Grauges, A Palano, M Pappagallo, A Pompili, JC Chen, ND Qi, G Rong, P Wang, YS Zhu, G Eigen, I Ofte, B Stugu, GS Abrams, M Battaglia, AB Breon, DN Brown, J Button-Shafer, RN Cahn, E Charles, CT Day, MS Gill, AV Gritsan, Y Groysman, RG Jacobsen, RW Kadel, J Kadyk, LT Kerth, YG Kolomensky, G Kukartsev, G Lynch, LM Mir, PJ Oddone, TJ Orimoto, M Pripstein, NA Roe, MT Ronan, WA Wenzel, M Barrett, KE Ford, TJ Harrison, AJ Hart, CM Hawkes, SE Morgan, AT Watson, M Fritsch, K Goetzen, T Held, H Koch, B Lewandowski, M Pelizaeus, K Peters, T Schroeder, M Steinke, JT Boyd, JP Burke, N Chevalier, WN Cottingham, T Cuhadar-Donszelmann, BG Fulsom, C Hearty, NS Knecht, TS Mattison, JA McKenna, A Khan, P Kyberd, M Saleem, L Teodorescu, AE Blinov, VE Blinov, AD Bukin, VP Druzhinin, VB Golubev, EA Kravchenko, AP Onuchin, SI Serednyakov, YI Skovpen, EP Solodov, AN Yushkov, D Best, M Bondioli, M Bruinsma, M Chao, S Curry, I Eschrich, D Kirkby, AJ Lankford, P Lund, M Mandelkern, RK Mommsen, W Roethel, DP Stoker

Abstract:

We present results of a search for the X(3872) in B0→X(3872)KS0, X(3872)→J/ψπ+π-, improved measurements of B-→X(3872)K-, and a study of the J/ψπ+π- mass region above the X(3872). We use 232×106 BB̄ pairs collected at the Υ(4S) resonance with the BABAR detector at the PEP-II e+e- asymmetric-energy storage rings. The results include the 90% confidence interval 1.34×10-6

More details from the publisher

Study of the decay B̄0→D*+ωπ-

Physical Review D Particles Fields Gravitation and Cosmology 74:1 (2006)

Authors:

B Aubert, R Barate, M Bona, D Boutigny, F Couderc, Y Karyotakis, JP Lees, V Poireau, V Tisserand, A Zghiche, E Grauges, A Palano, M Pappagallo, JC Chen, ND Qi, G Rong, P Wang, YS Zhu, G Eigen, I Ofte, B Stugu, GS Abrams, M Battaglia, DN Brown, J Button-Shafer, RN Cahn, E Charles, CT Day, MS Gill, Y Groysman, RG Jacobsen, JA Kadyk, LT Kerth, YG Kolomensky, G Kukartsev, G Lynch, LM Mir, PJ Oddone, TJ Orimoto, M Pripstein, NA Roe, MT Ronan, WA Wenzel, M Barrett, KE Ford, TJ Harrison, AJ Hart, CM Hawkes, SE Morgan, AT Watson, K Goetzen, T Held, H Koch, B Lewandowski, M Pelizaeus, K Peters, T Schroeder, M Steinke, JT Boyd, JP Burke, WN Cottingham, D Walker, T Cuhadar-Donszelmann, BG Fulsom, C Hearty, NS Knecht, TS Mattison, JA McKenna, A Khan, P Kyberd, M Saleem, L Teodorescu, VE Blinov, AD Bukin, VP Druzhinin, VB Golubev, AP Onuchin, SI Serednyakov, YI Skovpen, EP Solodov, K Yu Todyshev, DS Best, M Bondioli, M Bruinsma, M Chao, S Curry, I Eschrich, D Kirkby, AJ Lankford, P Lund, M Mandelkern, RK Mommsen, W Roethel, DP Stoker, S Abachi, C Buchanan, SD Foulkes, JW Gary, O Long, BC Shen

Abstract:

We report on a study of the decay B̄0→D*+ωπ- with the BABAR detector at the PEP-II B-factory at the Stanford Linear Accelerator Center. Based on a sample of 232×106 BB̄ decays, we measure the branching fraction B(B̄0→D*+ωπ-)=(2.88±0. 21(stat.)±0.31(syst.))×10-3. We study the invariant mass spectrum of the ωπ- system in this decay. This spectrum is in good agreement with expectations based on factorization and the measured spectrum in τ-→ωπ-ντ. We also measure the polarization of the D*+ as a function of the ωπ- mass. In the mass region 1.1 to 1.9 GeV we measure the fraction of longitudinal polarization of the D*+ to be ΓL/Γ=0.654±0.042(stat.)±0.016(syst.). This is in agreement with the expectations from heavy-quark effective theory and factorization assuming that the decay proceeds as B̄0→ D*+ρ(1450)-, ρ(1450)-→ωπ-. © 2006 The American Physical Society.

More details from the publisher

The e+e-→3(π+π-), 2(π+π-π0) and K+K-2(π+π-) cross sections at center-of-mass energies from production threshold to 4.5 GeV measured with initial-state radiation

Physical Review D Particles Fields Gravitation and Cosmology 73:5 (2006)

Authors:

B Aubert, R Barate, D Boutigny, F Couderc, Y Karyotakis, JP Lees, V Poireau, V Tisserand, A Zghiche, E Grauges, A Palano, M Pappagallo, JC Chen, ND Qi, G Rong, P Wang, YS Zhu, G Eigen, I Ofte, B Stugu, GS Abrams, M Battaglia, DS Best, DN Brown, J Button-Shafer, RN Cahn, E Charles, CT Day, MS Gill, AV Gritsan, Y Groysman, RG Jacobsen, RW Kadel, JA Kadyk, LT Kerth, YG Kolomensky, G Kukartsev, G Lynch, LM Mir, PJ Oddone, TJ Orimoto, M Pripstein, NA Roe, MT Ronan, WA Wenzel, M Barrett, KE Ford, TJ Harrison, AJ Hart, CM Hawkes, SE Morgan, AT Watson, M Fritsch, K Goetzen, T Held, H Koch, B Lewandowski, M Pelizaeus, K Peters, T Schroeder, M Steinke, JT Boyd, JP Burke, WN Cottingham, D Walker, T Cuhadar-Donszelmann, BG Fulsom, C Hearty, NS Knecht, TS Mattison, JA McKenna, A Khan, P Kyberd, M Saleem, L Teodorescu, VE Blinov, AD Bukin, VP Druzhinin, VB Golubev, EA Kravchenko, AP Onuchin, SI Serednyakov, YI Skovpen, EP Solodov, KY Todyshev, M Bondioli, M Bruinsma, M Chao, S Curry, I Eschrich, D Kirkby, AJ Lankford, P Lund, M Mandelkern, RK Mommsen, W Roethel, DP Stoker, S Abachi, C Buchanan, SD Foulkes

Abstract:

We study the processes e+e-→3(π+π-)γ, 2(π+π-π0) γ and K+K-2(π+π-)γ, with the photon radiated from the initial state. About 20000, 33000 and 4000 fully reconstructed events, respectively, have been selected from 232fb-1 of BABAR data. The invariant mass of the hadronic final state defines the effective e+e- center-of-mass energy, so that these data can be compared with the corresponding direct e+e- measurements. From the 3(π+π-), 2(π+π-π0) and K+K-2(π+π-) mass spectra, the cross sections for the processes e+e-→3(π+π-), e+e-→2(π+π- π0) and e+e-→K+K-2(π+π-) are measured for center-of-mass energies from production threshold to 4.5 GeV. The uncertainty in the cross section measurement is typically 6%-15%. We observe a structure at 1.9 GeV in both cross sections and a resonance structure with mass 1645±0.008GeV/c2 and width 0.114±0.014GeV when the ω(782)η final state is extracted. We observe the J/ψ in all these final states and measure the corresponding branching fractions. © 2006 The American Physical Society.

More details from the publisher

B meson decays to ωK*, ωp, ωω, ωφ, and ωf₀

PHYSICAL REVIEW D 74:5 (2006) ARTN 051102

Authors:

B Aubert, R Barate, M Bona, D Boutigny, F Couderc, Y Karyotakis, JP Lees, V Poireau, V Tisserand, A Zghiche, E Grauges, A Palano, JC Chen, ND Qi, G Rong, P Wang, YS Zhu, G Eigen, I Ofte, B Stugu, GS Abrams, M Battaglia, DN Brown, J Button-Shafer, RN Cahn, E Charles, MS Gill, Y Groysman, RG Jacobsen, JA Kadyk, LT Kerth, Yu G Kolomensky, G Kukartsev, G Lynch, LM Mir, PJ Oddone, TJ Orimoto, M Pripstein, NA Roe, MT Ronan, WA Wenzel, M Barrett, KE Ford, TJ Harrison, AJ Hart, CM Hawkes, SE Morgan, AT Watson, K Goetzen, T Held, H Koch, B Lewandowski, M Pelizaeus, K Peters, T Schroeder, M Steinke, JT Boyd, JP Burke, WN Cottingham, D Walker, T Cuhadar-Donszelmann, BG Fulsom, C Hearty, NS Knecht, TS Mattison, JA McKenna, A Khan, P Kyberd, M Saleem, L Teodorescu, VE Blinov, AD Bukin, VP Druzhinin, VB Golubev, AP Onuchin, SI Serednyakov, Yu I Skovpen, EP Solodov, K Yu Todyshev, DS Best, M Bondioli, M Bruinsma, M Chao, S Curry, I Eschrich, D Kirkby, AJ Lankford, P Lund, M Mandelkern, RK Mommsen, W Roethel, DP Stoker, S Abachi, C Buchanan, SD Foulkes, JW Gary, O Long, BC Shen, K Wang, L Zhang, HK Hadavand, EJ Hill, HP Paar, S Rahatlou, V Sharma, JW Berryhill, C Campagnari, A Cunha, B Dahmes, TM Hong, D Kovalskyi, JD Richman, TW Beck, AM Eisner, CJ Flacco, CA Heusch, J Kroseberg, WS Lockman, G Nesom, T Schalk, BA Schumm, A Seiden, P Spradlin, DC Williams, MG Wilson, J Albert, E Chen, D Doll, A Dvoretskii, DG Hitlin, I Narsky, T Piatenko, FC Porter, A Ryd, A Samuel, R Andreassen, G Mancinelli, BT Meadows, MD Sokoloff, F Blanc, PC Bloom, S Chen, WT Ford, JF Hirschauer, A Kreisel, U Nauenberg, A Olivas, WO Ruddick, JG Smith, KA Ulmer, SR Wagner, J Zhang, A Chen, EA Eckhart, A Soffer, WH Toki, RJ Wilson, F Winklmeier, Q Zeng, DD Altenburg, E Feltresi, A Hauke, H Jasper, B Spaan, T Brandt, V Klose, HM Lacker, WF Mader, R Nogowski, A Petzold, J Schubert, KR Schubert, R Schwierz, JE Sundermann, A Volk, D Bernard, GR Bonneaud, P Grenier, E Latour, Ch Thiebaux, M Verderi, DJ Bard, PJ Clark, W Gradl, F Muheim, S Playfer, AI Robertson, Y Xie, M Andreotti, D Bettoni, C Bozzi, R Calabrese, G Cibinetto, E Luppi, M Negrini, A Petrella, L Piemontese, E Prencipe, F Anulli, R Baldini-Ferroli, A Calcaterra, R de Sangro, G Finocchiaro, S Pacetti, P Patteri, IM Peruzzi, M Piccolo, M Rama, A Zallo, A Buzzo, R Capra, R Contri, M Lo Vetere, MM Macri, MR Monge, S Passaggio, C Patrignani, E Robutti, A Santroni, S Tosi, G Brandenburg, S Chaisanguanthum, M Morii, J Wu, RS Dubitzky, J Marks, S Schenk, U Uwer, W Bhimji, DA Bowerman, PD Dauncey, U Egede, RL Flack, JR Gaillard, JA Nash, MB Nikolich, W Panduro Vazquez, X Chai, MJ Charles, U Mallik, NT Meyer, V Ziegler, J Cochran, HB Crawley, L Dong, V Eyges, WT Meyer, S Prell, EI Rosenberg, AE Rubin, AV Gritsan, M Fritsch, G Schott, N Arnaud, M Davier, G Grosdidier, A Hocker, F Le Diberder, V Lepeltier, AM Lutz, A Oyanguren, S Pruvot, S Rodier, P Roudeau, MH Schune, A Stocchi, WF Wang, G Wormser, CH Cheng, DJ Lange, DM Wright, CA Chavez, IJ Forster, JR Fry, E Gabathuler, R Gamet, KA George, DE Hutchcroft, DJ Payne, KC Schofield, C Touramanis, AJ Bevan, F Di Lodovico, W Menges, R Sacco, CL Brown, G Cowan, HU Flaecher, DA Hopkins, PS Jackson, TR McMahon, S Ricciardi, F Salvatore, DN Brown, CL Davis, J Allison, NR Barlow, RJ Barlow, YM Chia, CL Edgar, MP Kelly, GD Lafferty, MT Naisbit, JC Williams, JI Yi, C Chen, WD Hulsbergen, A Jawahery, CK Lae, DA Roberts, G Simi, G Blaylock, C Dallapiccola, SS Hertzbach, X Li, TB Moore, S Saremi, H Staengle, SY Willocq, R Cowan, K Koeneke, G Sciolla, SJ Sekula, M Spitznagel, F Taylor, RK Yamamoto, H Kim, PM Patel, SH Robertson, A Lazzaro, V Lombardo, F Palombo, JM Bauer, L Cremaldi, V Eschenburg, R Godang, R Kroeger, J Reidy, DA Sanders, DJ Summers, HW Zhao, S Brunet, D Cote, P Taras, FB Viaud, H Nicholson, N Cavallo, G De Nardo, D del Re, F Fabozzi, C Gatto, L Lista, D Monorchio, P Paolucci, D Piccolo, C Sciacca, M Baak, H Bulten, G Raven, HL Snoek, CP Jessop, JM LoSecco, T Allmendinger, G Benelli, KK Gan, K Honscheid, D Hufnagel, PD Jackson, H Kagan, R Kass, T Pulliam, AM Rahimi, R Ter-Antonyan, QK Wong, NL Blount, J Brau, R Frey, O Igonkina, M Lu, CT Potter, R Rahmat, NB Sinev, D Strom, J Strube, E Torrence, F Galeazzi, A Gaz, M Margoni, M Morandin, A Pompili, M Posocco, M Rotondo, F Simonetto, R Stroili, C Voci, M Benayoun, J Chauveau, P David, L Del Buono, Ch de la Vaissiere, O Hamon, BL Hartfiel, MJJ John, J Malcles, J Ocariz, L Roos, G Therin, PK Behera, L Gladney, J Panetta, M Biasini, R Covarelli, M Pioppi, C Angelini, G Batignani, S Bettarini, F Bucci, G Calderini, M Carpinelli, R Cenci, F Forti, MA Giorgi, A Lusiani, G Marchiori, MA Mazur, M Morganti, N Neri, G Rizzo, J Walsh, M Haire, D Judd, DE Wagoner, J Biesiada, N Danielson, P Elmer, YP Lau, C Lu, J Olsen, AJS Smith, AV Telnov, F Bellini, G Cavoto, A D'Orazio, E Di Marco, R Faccini, F Ferrarotto, F Ferroni, M Gaspero, L Li Gioi, MA Mazzoni, S Morganti, G Piredda, F Polci, F Safai Tehrani, C Voena, M Ebert, H Schroeder, R Waldi, T Adye, N De Groot, B Franek, EO Olaiya, FF Wilson, S Emery, A Gaidot, SF Ganzhur, G Hamel de Monchenault, W Kozanecki, M Legendre, G Vasseur, Ch Yeche, M Zito, W Park, MV Purohit, JR Wilson, MT Allen, D Aston, R Bartoldus, P Bechtle, N Berger, AM Boyarski, R Claus, JP Coleman, MR Convery, M Cristinziani, JC Dingfelder, D Dong, J Dorfan, GP Dubois-Felsmann, D Dujmic, W Dunwoodie, RC Field, T Glanzman, SJ Gowdy, MT Graham, V Halyo, C Hast, T Hryn'ova, WR Innes, MH Kelsey, P Kim, ML Kocian, DWGS Leith, S Li, J Libby, S Luitz, V Luth, HL Lynch, DB MacFarlane, H Marsiske, R Messner, DR Muller, CP O'Grady, VE Ozcan, M Perl, A Perazzo, BN Ratcliff, A Roodman, AA Salnikov, RH Schindler, J Schwiening, A Snyder, J Stelzer, D Su, MK Sullivan, K Suzuki, SK Swain, JM Thompson, J Va'vra, N van Bakel, M Weaver, AJR Weinstein, WJ Wisniewski, M Wittgen, DH Wright, AK Yarritu, K Yi, CC Young, PR Burchat, AJ Edwards, SA Majewski, BA Petersen, C Roat, L Wilden, S Ahmed, MS Alam, R Bula, JA Ernst, V Jain, B Pan, MA Saeed, FR Wappler, SB Zain, W Bugg, M Krishnamurthy, SM Spanier, R Eckmann, JL Ritchie, A Satpathy, CJ Schilling, RF Schwitters, JM Izen, I Kitayama, XC Lou, S Ye, F Bianchi, F Gallo, D Gamba, M Bomben, L Bosisio, C Cartaro, F Cossutti, G Della Ricca, S Dittongo, S Grancagnolo, L Lanceri, L Vitale, V Azzolini, F Martinez-Vidal, Sw Banerjee, B Bhuyan, CM Brown, D Fortin, K Hamano, R Kowalewski, IM Nugent, JM Roney, RJ Sobie, JJ Back, PF Harrison, TE Latham, GB Mohanty, M Pappagallo, HR Band, X Chen, B Cheng, S Dasu, M Datta, AM Eichenbaum, KT Flood, JJ Hollar, PE Kutter, H Li, R Liu, B Mellado, A Mihalyi, AK Mohapatra, Y Pan, M Pierini, R Prepost, P Tan, SL Wu, Z Yu, H Neal

More details from the publisher

Malcolm John

Research theme

Sub department

Study of e+e-→pp̄ using initial state radiation with BABAR

Authors:

Abstract:

Study of the X(3872) and Y(4260) in B0→J/ψπ+π-K0 and B-→J/ψπ+π-K- decays

Authors:

Abstract:

Study of the decay B̄0→D*+ωπ-

Authors:

Abstract:

The e+e-→3(π+π-), 2(π+π-π0) and K+K-2(π+π-) cross sections at center-of-mass energies from production threshold to 4.5 GeV measured with initial-state radiation

Authors:

Abstract:

B meson decays to ωK*, ωp, ωω, ωφ, and ωf₀

Authors:

FIND US

CONTACT US

Malcolm John

Research theme

Sub department

Research groups

Study of e+e-→pp̄ using initial state radiation with BABAR

Authors:

Abstract:

Study of the X(3872) and Y(4260) in B0→J/ψπ+π-K0 and B-→J/ψπ+π-K- decays

Authors:

Abstract:

Study of the decay B̄0→D*+ωπ-

Authors:

Abstract:

The e+e-→3(π+π-), 2(π+π-π0) and K+K-2(π+π-) cross sections at center-of-mass energies from production threshold to 4.5 GeV measured with initial-state radiation

Authors:

Abstract:

B meson decays to ωK*, ωp, ωω, ωφ, and ωf0

Authors:

B meson decays to ωK*, ωp, ωω, ωφ, and ωf₀