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1. Head-on Collisional Effects of Ion Acoustic Waves in Magnetized Plasma: Linear and Nonlinear Analyses

Author

M. S. Alam and Mamunur Rashid Talukder

Subjects
Physics, 010308 nuclear & particles physics, Wave propagation, General Physics and Astronomy, Plasma, Acoustic wave, Electron, 01 natural sciences, Ion, Physics::Plasma Physics, Dispersion relation, 0103 physical sciences, Group velocity, Production (computer science), Atomic physics, 010306 general physics
Abstract

Head-on collisional phenomena of ion acoustic (IA) waves in electron–positron–ion magnetized plasmas are investigated through linear and nonlinear analyses. The plasma system is considered collisionless and comprising cold ions, kappa distributed cold electrons, and positrons. Dispersion relation is derived with the aid of the linear perturbation method. The two sided nonlinear Korteweg-de Vries (KdV) equations are derived employing extended Poincare-Lighthill-Kuo (ePLK) method. The effects of wave frequency on linear group velocity with species density ratio are studied. Further, the production of ion acoustic solitons in terms of ion gyrofrequency ( $${\omega }_{\mathrm{g}}$$ ), superthermality parameters for electrons ( $${\kappa }_{\mathrm{e}}$$ ), and positrons ( $${\kappa }_{\mathrm{p}}$$ ) is investigated. Additionally, the effects of obliqueness (angle between magnetic field and wave propagation vector) on nonlinearity coefficient and phase shifts with density ratios (positron to electron and ion to electron) are demonstrated.

Published
2021
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2. Head-on collision of ion-acoustic waves in multi-component unmagnetized plasmas

Author

Mamunur Rashid Talukder, Abu Shahed Mohammad Moinuddin, and M. S. Alam

Subjects
Physics, Component (thermodynamics), Astrophysics::High Energy Astrophysical Phenomena, General Engineering, General Physics and Astronomy, 02 engineering and technology, Plasma, Electron, Acoustic wave, 01 natural sciences, Isothermal process, 010305 fluids & plasmas, Ion, Head-on collision, 020303 mechanical engineering & transports, Positron, 0203 mechanical engineering, Physics::Plasma Physics, Physics::Space Physics, 0103 physical sciences, Atomic physics
Abstract

Face-to-face collisional effects of ion acoustic waves (IAWs) in multi-component unmagnetized plasma containing pair-ions, nonthermal electrons and isothermal positrons are investigated theoretical...

Published
2020
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3. Light meson spectroscopy from Dalitz plot analyses of ηc decays to η′K+K− , η′π+π− , and ηπ+π− produced in two-photon interactions

Author

Z. C. Huard, U. Mallik, Yu. I. Skovpen, T. S. Miyashita, N. Neri, F. Anulli, E. Grauges, G. R. Bonneaud, Mario Giorgi, J. Dorfan, E. Fioravanti, F. Palombo, T. Lueck, Alessandro Gaz, B. N. Ratcliff, G. J. King, Elisa Manoni, F. Di Lodovico, A. M. Rossi, M. Verderi, N. Arnaud, J. L. Ritchie, L. M. Cremaldi, R. Y. So, A. Roodman, M. Rotondo, D. J. Payne, J. W. Gary, M. Ebert, S. H. Robertson, S. Bettarini, R. M. Seddon, F. Ferroni, R. Cenci, G. De Nardo, A. J. Bevan, Herbert Koch, Crisostomo Sciacca, D. Aston, A. Zallo, J. B. Kim, G. Rizzo, P. F. Harrison, D. G. Hitlin, W. J. Wisniewski, N. Tasneem, M. Fritsch, B. T. Meadows, G. Raven, K. Griessinger, S. M. Spanier, Tim Adye, A. Oyanguren, Stephen Robert Wagner, Aidan Randle-Conde, R. D. Kass, R. C. Field, F. Forti, K. R. Schubert, S. Passaggio, M. D. Sokoloff, P. R. Burchat, Yu. G. Kolomensky, G. Finocchiaro, J. P. Lees, Simon Akar, M. S. Alam, R. Prepost, J. M. Roney, C. Hast, S. Luitz, D. J. Lange, S. Martellotti, G. Piredda, W. Panduro Vazquez, D. E. Hutchcroft, Babar, J. Ocariz, I. M. Peruzzi, J. G. Smith, D. B. MacFarlane, H. A. Neal, G. Wormser, A. Calcaterra, C. Bünger, Maurizio Biasini, D. R. Muller, G. Casarosa, T. Leddig, Tamara Vazquez Schroeder, J. M. Izen, P. Ongmongkolkul, B. Bhuyan, B. Oberhof, V. E. Blinov, J. Cochran, E. A. Kravchenko, M. Piccolo, W. S. Lockman, B. G. Fulsom, T. J. Gershon, G. Vasseur, S. I. Serednyakov, F. Bianchi, I. M. Nugent, R. Cheaib, T. S. Mattison, C. Cartaro, Y. B. Li, Owen Rosser Long, D. W. G. S. Leith, G. Batignani, S. J. Sekula, M. R. Convery, A. Jawahery, V. Santoro, B. G. Pushpawela, W. Dunwoodie, Marco Bomben, S. Dittrich, D. S. Chao, R. Waldi, R. Gorodeisky, D. N. Brown, F. F. Wilson, Douglas Wright, D. A. Roberts, L. Zani, J. A. Ernst, L. Sun, T. E. Latham, M. Carpinelli, V. B. Golubev, C. P. Jessop, G. Calderini, Martino Margoni, M. Davier, J. M. LoSecco, M. K. Sullivan, S. Emery, E. Ben-Haim, E. A. Kozyrev, C. Touramanis, A. M. Lutz, E. Paoloni, B. Dey, M. T. Graham, A. Hafner, O. Grünberg, W. Gradl, D. X. Lin, M. Rama, J. Va’vra, Hamad Ahmed, R. Kowalewski, J. A. McKenna, A. P. Onuchin, E. M. T. Puccio, G. Cibinetto, A. V. Gritsan, Alessandro Pilloni, A. R. Buzykaev, D. R. Peimer, K. T. Flood, A. Beaulieu, M. Röhrken, A. Palano, R. Sacco, N. Guttman, G. Marchiori, R. Faccini, F. Ferrarotto, A. J. Lankford, F. Le Diberder, F. De Mori, P. Patteri, L. Lanceri, A. Filippi, Denis Bernard, A. J. S. Smith, R. Cowan, B. Echenard, J. Chauveau, V. P. Druzhinin, C. Bozzi, G. Cowan, K. Honscheid, R. J. Barlow, M. Posocco, D. Gamba, M. Bellis, James R. Wilson, Brian Shuve, R. Calabrese, G. Eigen, K. Yu Todyshev, R. Stroili, F. Simonetto, J. J. Walsh, G. D. Lafferty, X. C. Lou, J. Oyang, R. Godang, Cheng Chen, H. M. Lacker, M. Heß, C. Hearty, D. J. Summers, S. Prell, I. Garzia, R. J. Sobie, V. Poireau, A. Soffer, L. Vitale, F. Martinez-Vidal, A. Lusiani, E. Luppi, P. Taras, E. P. Solodov, J. P. Coleman, A. G. Denig, C. L. Davis, R. F. Schwitters, A. M. Eisner, Peter S. Kim, M. V. Purohit, J. Albert, C. H. Cheng, R. de Sangro, S. L. Wu, E. Gabathuler, W. R. Innes, F. C. Porter, M. Chrzaszcz, C. Voß, Sw. Banerjee, G. Simi, D. Bettoni, Florian Urs Bernlochner, C. Patrignani, and V. Tisserand

Subjects
Physics, Meson, 010308 nuclear & particles physics, Branching fraction, Glueball, Electron–positron annihilation, Resonance, Dalitz plot, 01 natural sciences, Crystallography, 0103 physical sciences, 010306 general physics, Spectroscopy, Scalar meson
Abstract

We study the processes γ γ → η c → η ′ K + K - , η ′ π + π - , and η π + π - using a data sample of 519 fb - 1 recorded with the BABAR detector operating at the SLAC PEP-II asymmetric-energy e + e - collider at center-of-mass energies at and near the ϒ ( n S ) ( n = 2 , 3, 4) resonances. This is the first observation of the decay η c → η ′ K + K - and we measure the branching fraction Γ ( η c → η ′ K + K - ) / ( Γ ( η c → η ′ π + π - ) = 0.644 ± 0.03 9 stat ± 0.03 2 sys . Significant interference is observed between γ γ → η c → η π + π - and the nonresonant two-photon process γ γ → η π + π - . A Dalitz plot analysis is performed of η c decays to η ′ K + K - , η ′ π + π - , and η π + π - . Combined with our previous analysis of η c → K K ¯ π , we measure the K 0 * ( 1430 ) parameters and the ratio between its η ′ K and π K couplings. The decay η c → η ′ π + π - is dominated by the f 0 ( 2100 ) resonance, also observed in J / ψ radiative decays. A new a 0 ( 1700 ) → η π resonance is observed in the η c → η π + π - channel. We also compare η c decays to η and η ′ final states in association with scalar mesons as they relate to the identification of the scalar glueball.

Published
2021
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4. Investigation of the transport mechanism in graphene-induced metal-oxide-semiconductor capacitors (MOSCAP)

Author

S. Ahmed, S. Alam, S. Fahad, and Md. Yeamin Ali

Subjects
Materials science, business.industry, Graphene, Contact resistance, Oxide, General Physics and Astronomy, Substrate (electronics), 01 natural sciences, 010305 fluids & plasmas, law.invention, Capacitor, chemistry.chemical_compound, Transition metal, chemistry, law, Electrical resistivity and conductivity, 0103 physical sciences, Optoelectronics, 010306 general physics, business, Layer (electronics)
Abstract

Graphene is the most promising contender for the future generation of electronic and photonic devices, based on its extraordinary properties. The effect of the metal interface with graphene, however, which completely alters its properties, is of great importance. The effects of the substrate supporting the graphene matrix, the graphene/metal contact resistance and the overall metal oxide semiconductor capacitors (MOSCAP) for possible CMOS circuitry have been thoroughly investigated in this research work. We have fabricated a structure with pertinent deposition techniques and performed a detailed electrical analysis to obtain the transport characteristics. Nickel (Ni) is chosen as the transition metal which makes the chemisorption bonding with graphene while qualifying as an interface. We present an analysis of the metal contacts, a study of the metal resistivity at various planes, a study of the graphene (carbon) atom's resistance at the atomistic scale, the graphene based MOSCAP leakages, the necessary charge accumulation at the metal–graphene interface and the charge inversion just beneath the oxide layer.

Published
2019
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5. Head-on Collision of Ion-Acoustic Solitary Waves with Two Negative Ion Species in Electron–Positron–Ion Plasmas and Production of Rogue Waves

Author

M. S. Alam and Mamunur Rashid Talukder

Subjects
010302 applied physics, Physics, Physics and Astronomy (miscellaneous), Computer Science::Information Retrieval, Computer Science::Computation and Language (Computational Linguistics and Natural Language and Speech Processing), Electron, Type (model theory), Condensed Matter Physics, 01 natural sciences, 010305 fluids & plasmas, Ion, symbols.namesake, Nonlinear Sciences::Exactly Solvable and Integrable Systems, Amplitude, Physics::Plasma Physics, Ionization, 0103 physical sciences, symbols, Production (computer science), Atomic physics, Korteweg–de Vries equation, Nonlinear Sciences::Pattern Formation and Solitons, Nonlinear Schrödinger equation
Abstract

The interactions between ion acoustic solitary waves (IASWs) are investigated considering completely ionized electron–positron–ion (e–p–i) plasmas consisting of ions with positive and two negative species, nonthermal electrons, and positrons. Two-sided Korteweg–de Vries (KdV) and modified KdV (mKdV) equations are derived using extended Poincare–Lighthill–Kuo (ePLK) reductive perturbation method. To investigate the production of ion-acoustic rogue waves (IARWs), the rational solution of nonlinear Schrodinger equation (NLSE) is derived from the mKdV equation. Two types of plasmas containing $${\text{A}}{{{\text{r}}}^{ + }}$$ , $${{{\text{F}}}^{ - }}$$ , and $${\text{SF}}_{{\text{5}}}^{ - }$$ species, as well as $${\text{SF}}_{{\text{5}}}^{ + }$$ , $${{{\text{F}}}^{ - }}$$ , and $${\text{SF}}_{{\text{5}}}^{ - }$$ species, are taken into account to study their effects on the amplitudes and phase shifts after collision, as well as the production and properties of rogue waves (RWs). It is observed during collision that a high-amplitude wave is produced in the interaction region depending on the type and parameters of plasmas. The nonthermality of electrons and positrons, electron-to-positron temperature ratio, and the density of negative ions modify the phase shift and amplitude of the waves produced during the collision of the two solitons. The amplitude of the RW for the $${\text{A}}{{{\text{r}}}^{ + }}$$ , $${{{\text{F}}}^{ - }}$$ , and $${\text{SF}}_{{\text{5}}}^{ - }$$ plasmas is found to be larger than that for the $${\text{SF}}_{{\text{5}}}^{ + }$$ , $${{{\text{F}}}^{ - }}$$ , and $${\text{SF}}_{{\text{5}}}^{ - }$$ plasmas.

Published
2019
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6. Thermal response of dielectric, impedance and modulus spectroscopy study ofNCZAbulk ceramics

Author

N. J. Shirin, M. S. Alam, M. B. Hossen, and N. M. Eman

Subjects
010302 applied physics, Diffraction, Materials science, Spinel, Modulus, 02 engineering and technology, Dielectric, engineering.material, 021001 nanoscience & nanotechnology, 01 natural sciences, Dielectric spectroscopy, visual_art, 0103 physical sciences, engineering, visual_art.visual_art_medium, General Materials Science, Ceramic, Composite material, 0210 nano-technology, Spectroscopy, Instrumentation, Electrical impedance
Abstract

The Ni0.27Cu0.10Zn0.63Fe1.96Al0.04O4 (NCZA) magnetic bulk ceramics is prepared via conventional solid state reaction technique. X-ray diffraction study has confirmed the single phase spinel...

Published
2019
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7. Interaction phenomena of ion acoustic solitary waves with singly charged cold ions and Boltzmann electrons

Author

M. S. Alam and M. R. Talukder

Subjects
Physics, General Engineering, General Physics and Astronomy, 02 engineering and technology, Electron, Plasma, Collision, 01 natural sciences, 010305 fluids & plasmas, Ion, symbols.namesake, 020303 mechanical engineering & transports, 0203 mechanical engineering, Physics::Plasma Physics, 0103 physical sciences, Boltzmann constant, symbols, Atomic physics
Abstract

The linear features and phenomena concerning head-on collision between the two ion acoustic solitary waves are investigated considering the multi-component plasma system comprising singly charged c...

Published
2019
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8. Study of the reactions e+e−→2(π+π−)π0π0π0 and 2(π+π−)π0π0η at center-of-mass energies from threshold to 4.5 GeV using initial-state radiation

Author

R. Cenci, A. Zallo, J. B. Kim, M. Fritsch, E. Grauges, Mario Giorgi, A. V. Gritsan, D. B. MacFarlane, C. H. Cheng, Simon Akar, R. Prepost, E. A. Kravchenko, J. L. Ritchie, G. Vasseur, K. T. Flood, B. N. Ratcliff, Z. C. Huard, Y. I. Skovpen, A. Calcaterra, R. de Sangro, J. Va’vra, M. Röhrken, L. M. Cremaldi, A. Filippi, R. Cowan, R. Sacco, M. Ebert, C. L. Davis, A. Palano, P. Ongmongkolkul, Marco Bomben, G. J. King, N. Tasneem, James R. Wilson, F. Simonetto, S. Banerjee, P. Taras, E. P. Solodov, M. Piccolo, M. Hess, Brian Shuve, R. Calabrese, G. Batignani, F. Anulli, Aidan Randle-Conde, G. Simi, D. G. Hitlin, P. Patteri, P. F. Harrison, V. P. Druzhinin, C. Bozzi, G. Cowan, K. Honscheid, Alessandro Gaz, E. Ben-Haim, J. Oyang, G. Eigen, Alessandro Pilloni, Cheng Chen, R. J. Barlow, J. J. Walsh, S. H. Robertson, M. Posocco, D. R. Peimer, R. Gorodeisky, V. B. Golubev, J. Ocariz, Crisostomo Sciacca, D. Aston, N. Guttman, F. Forti, D. A. Roberts, G. Rizzo, B. Echenard, Douglas Wright, Herbert Koch, M. Rotondo, L. Zani, V. E. Blinov, A. M. Lutz, R. Cheaib, H. A. Neal, G. Casarosa, D. X. Lin, R. Waldi, M. Rama, J. P. Coleman, D. Gamba, M. Bellis, G. De Nardo, X. C. Lou, J. A. McKenna, M. T. Graham, A. Hafner, E. Gabathuler, W. R. Innes, C. Hearty, F. C. Porter, J. M. LoSecco, T. E. Latham, K. Griessinger, G. Marchiori, G. Wormser, M. Carpinelli, C. Voss, B. Dey, J. M. Izen, A. Oyanguren, W. Gradl, E. M. T. Puccio, D. J. Summers, J. P. Lees, G. D. Lafferty, D. W. G. S. Leith, S. Prell, Hamad Ahmed, R. Stroili, R. Faccini, I. Garzia, F. De Mori, J. Cochran, M. Chrzaszcz, F. Ferrarotto, A. J. Lankford, B. Bhuyan, F. Le Diberder, G. Calderini, A. R. Buzykaev, V. Santoro, B. G. Fulsom, R. J. Sobie, V. Poireau, A. Beaulieu, L. Vitale, Denis Bernard, Peter S. Kim, F. Martinez-Vidal, A. J. S. Smith, Y. B. Li, A. Soffer, A. M. Rossi, R. C. Field, L. Lanceri, W. Dunwoodie, S. Luitz, C. P. Jessop, E. Fioravanti, A. Lusiani, Martino Margoni, W. J. Wisniewski, F. Palombo, T. Lueck, E. Luppi, J. Chauveau, Maurizio Biasini, G. Finocchiaro, D. R. Muller, M. K. Sullivan, R. Godang, A. Roodman, Tamara Vazquez Schroeder, C. Cartaro, H. M. Lacker, R. M. Seddon, M. S. Alam, Owen Rosser Long, B. G. Pushpawela, F. Ferroni, So R. Y., A. G. Denig, Tim Adye, R. D. Kass, J. A. Ernst, L. Sun, B. Oberhof, Stephen Robert Wagner, B. T. Meadows, S. Passaggio, K. R. Schubert, S. Martellotti, R. F. Schwitters, R. Kowalewski, G. Raven, M. D. Sokoloff, C. Bünger, I. M. Nugent, K. Y. Todyshev, P. R. Burchat, D. S. Chao, M. Davier, S. J. Sekula, A. Jawahery, E. A. Kozyrev, A. P. Onuchin, G. Cibinetto, C. Hast, D. J. Lange, G. Piredda, W. Panduro Vazquez, A. M. Eisner, T. J. Gershon, M. V. Purohit, G. R. Bonneaud, J. Dorfan, J. Albert, Elisa Manoni, M. Verderi, N. Arnaud, E. Paoloni, I. M. Peruzzi, J. W. Gary, S. I. Serednyakov, F. Bianchi, S. Dittrich, Wu S. L., Y. G. Kolomensky, C. Touramanis, O. Grünberg, J. M. Roney, J. G. Smith, U. Mallik, T. S. Miyashita, N. Neri, S. Bettarini, A. J. Bevan, S. M. Spanier, D. E. Hutchcroft, T. Leddig, F. Di Lodovico, W. S. Lockman, M. R. Convery, D. J. Payne, T. S. Mattison, D. N. Brown, F. F. Wilson, S. Emery, D. Bettoni, Florian Urs Bernlochner, C. Patrignani, and V. Tisserand

Subjects
Physics, 010308 nuclear & particles physics, 0103 physical sciences, Hadron, Mass spectrum, Analytical chemistry, Invariant mass, Center of mass, State (functional analysis), 010306 general physics, 01 natural sciences, Luminosity
Abstract

Author(s): Lees, JP; Poireau, V; Tisserand, V; Grauges, E; Palano, A; Eigen, G; Brown, DN; Kolomensky, YG; Fritsch, M; Koch, H; Schroeder, T; Cheaib, R; Hearty, C; Mattison, TS; McKenna, JA; So, RY; Blinov, VE; Buzykaev, AR; Druzhinin, VP; Golubev, VB; Kozyrev, EA; Kravchenko, EA; Onuchin, AP; Serednyakov, SI; Skovpen, YI; Solodov, EP; Todyshev, KY; Lankford, AJ; Dey, B; Gary, JW; Long, O; Eisner, AM; Lockman, WS; Panduro Vazquez, W; Chao, DS; Cheng, CH; Echenard, B; Flood, KT; Hitlin, DG; Kim, J; Li, Y; Lin, DX; Miyashita, TS; Ongmongkolkul, P; Oyang, J; Porter, FC; Rohrken, M; Huard, Z; Meadows, BT; Pushpawela, BG; Sokoloff, MD; Sun, L; Smith, JG; Wagner, SR; Bernard, D; Verderi, M; Bettoni, D; Bozzi, C; Calabrese, R; Cibinetto, G; Fioravanti, E; Garzia, I; Luppi, E; Santoro, V; Calcaterra, A; De Sangro, R; Finocchiaro, G; Martellotti, S; Patteri, P; Peruzzi, IM; Piccolo, M; Rotondo, M; Zallo, A; Passaggio, S; Patrignani, C; Shuve, BJ; Lacker, HM; Bhuyan, B; Mallik, U; Chen, C; Cochran, J; Prell, S; Gritsan, AV; Arnaud, N; Davier, M | Abstract: We study the processes e+e-→2(π+π-)π0π0π0γ and 2(π+π-)π0π0ηγ in which an energetic photon is radiated from the initial state. The data were collected with the BABAR detector at SLAC. About 14 000 and 4700 events, respectively, are selected from a data sample corresponding to an integrated luminosity of 469 fb-1. The invariant mass of the hadronic final state defines the effective e+e- center-of-mass energy. The center-of-mass energies range from threshold to 4.5 GeV. From the mass spectra, the first ever measurements of the e+e-→2(π+π-)π0π0π0 and the e+e-→2(π+π-)π0π0η cross sections are performed. The contributions from ωπ+π-π0π0, η2(π+π-), and other intermediate states are presented. We observe the J/ψ and ψ(2S) in most of these final states and measure the corresponding branching fractions, many of them for the first time.

Published
2021
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9. Head-on collisional effects of ion acoustic waves in pair-ion plasma: topological and non-topological solitons

Author

Mamunur Rashid Talukder and M. S. Alam

Subjects
Physics, Plasma parameters, Plasma, Electron, Type (model theory), Topology, 01 natural sciences, Atomic and Molecular Physics, and Optics, 010305 fluids & plasmas, Ion, Nonlinear Sciences::Exactly Solvable and Integrable Systems, Amplitude, Physics::Plasma Physics, 0103 physical sciences, 010306 general physics, Korteweg–de Vries equation, Nonlinear Sciences::Pattern Formation and Solitons, Ansatz
Abstract

The phenomena concerning head-on collision between the two topological and non-topological solitons are investigated in unmagnetized and collisionless plasma system consisting of weakly relativistic cold positive ( $$H^{+}$$ , $${Xe}^{+}$$ and $$K^{+}$$ ) and negative ( $$H^{-}$$ , $${SF}_{6}^{-}$$ , $$O_{2}^{-}$$ and $$C_{7}F_{14}^{-}$$ ) ion species with superthermal electrons. To do this, the two-sided Korteweg–de Vries (KdV) equations are derived using extended Poincare–Lighthill–Kue method. The solutions of KdV equations are obtained by solitary ansatz technique. Productions as well as collisional effects of non-topological and topological solitons are investigated taking the experimentally obtained plasma parameters into accounts. The study reveals that the nonlinearity of non-topological solitons become more pronounced for $$K^{+}-C_{7}F_{14}^{-}$$ plasma as compared to the other ionic species plasmas. The masses and densities of negative ion species play a vital role on the potential profiles of topological solitons. A new type large amplitude wave is produced in the colliding region due to collision depending on plasma parameters.

Published
2021
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10. Precision Measurement of the Ratio B(ϒ(3S)→τ+τ−)/B(ϒ(3S)→μ+μ−)

Author

J. Dorfan, N. Tasneem, B. N. Ratcliff, Aidan Randle-Conde, Biplab Dey, M. Hess, Z. C. Huard, W. Panduro Vazquez, C. H. Cheng, F. Simonetto, R. de Sangro, A. Filippi, S. Bettarini, Roberto Calabrese, C. H. Chen, L. M. Cremaldi, R. Cowan, J. Ocariz, S. M. Spanier, Y. Li, A. Roodman, R. M. Seddon, I. M. Peruzzi, E. Fioravanti, Vladimir Blinov, F. Bianchi, S. Dittrich, S. Akar, W. S. Lockman, E. Ben-Haim, A. G. Denig, D. G. Hitlin, J. W. Gary, J. L. Ritchie, S. I. Serednyakov, Roland Waldi, F. Ferroni, So R. Y., M. Verderi, X. C. Lou, F. De Mori, F. Anulli, R. C. Field, R. Godang, U. Mallik, Heiko Lacker, E. Gabathuler, F. C. Porter, R. Gorodeisky, D. W. G. S. Leith, Paul Fraser Harrison, D. A. Roberts, Ju-Young Kim, N. Neri, N. Arnaud, J. M. LoSecco, G. Calderini, Stephen Robert Wagner, K. R. Schubert, M. K. Sullivan, D. Gamba, F. Forti, Alessandro Gaz, A. Hafner, E. M. T. Puccio, N. Guttman, W. Dunwoodie, A. Calcaterra, B. G. Pushpawela, C. Cartaro, G. Marchiori, Maurizio Biasini, C. Hearty, M. Chrzaszcz, A. Sibidanov, D. J. Summers, J. M. Roney, J. G. Smith, G. Wormser, Marco Bomben, S. H. Robertson, M. Fritsch, Douglas Wright, L. Zani, W. R. Innes, R. J. Sobie, M. V. Purohit, J. Albert, L. Vitale, R. Cheaib, D. Bettoni, Andrei Gritsan, James R. Wilson, S. Emery, Brian Shuve, F. Martinez-Vidal, Dominik Müller, T. Schroeder, J. J. Walsh, R. Cenci, A. Zallo, A. M. Rossi, F. Di Lodovico, D. J. Payne, V. Poireau, Owen Rosser Long, M. Piccolo, Joseph Izen, B. Echenard, D. Bernard, Florian Urs Bernlochner, D. N. Brown, Hamad Ahmed, F. Palombo, T. Lueck, D. E. Hutchcroft, J. A. Ernst, W. Gradl, Abner Soffer, Herbert Koch, M. T. Graham, T. Leddig, P. Ongmongkolkul, L. Lanceri, G. D. Lafferty, A. P. Onuchin, L. Sun, Eleonora Luppi, I. Garzia, K. Y. Todyshev, G. Batignani, J. Oyang, C. Patrignani, G. Rizzo, V. Tisserand, Colin Jessop, G. Eigen, G. Finocchiaro, D. X. Lin, D. B. MacFarlane, M. Rama, Adrian John Bevan, W. J. Wisniewski, R. Prepost, J. Chauveau, G. J. King, J. A. McKenna, S. Prell, T. E. Latham, K. Griessinger, E. Paoloni, Yuri Skovpen, F. F. Wilson, James H Cochran, J. P. Lees, S. Martellotti, M. Carpinelli, B. Oberhof, M. Rotondo, T. S. Mattison, B. T. Meadows, V. Santoro, A. Lusiani, G. De Nardo, G. Vasseur, K. T. Flood, M. Röhrken, G. Raven, M. D. Sokoloff, V. P. Druzhinin, Alessandro Pilloni, D. R. Peimer, A. M. Eisner, I. M. Nugent, R. Stroili, P. R. Burchat, C. Hast, D. J. Lange, G. Piredda, Sw. Banerjee, D. S. Chao, G. R. Bonneaud, E. Grauges, Mario Giorgi, M. Davier, R. Sacco, T. J. Gershon, P. Taras, Gabriele Simi, C. L. Davis, A. J.S. Smith, R. Kowalewski, J. P. Coleman, E. P. Solodov, T. S. Miyashita, R. F. Schwitters, Elisa Manoni, D. Aston, C. Bünger, E. A. Kravchenko, A. Oyanguren, Crisostomo Sciacca, M. Bellis, C. Touramanis, O. Grünberg, A. Jawahery, Martino Margoni, G. Cibinetto, E. A. Kozyrev, C. Voss, P. C. Kim, Tim Adye, R. D. Kass, B. Bhuyan, B. G. Fulsom, V. B. Golubev, A. Palano, S. Luitz, P. Patteri, J. Va’vra, A. M. Lutz, S. Passaggio, R. Faccini, F. Ferrarotto, A. J. Lankford, F. Le Diberder, G. A. Cowan, M. Ebert, Stephen Sekula, C. Bozzi, K. Honscheid, R. J. Barlow, M. Posocco, H. A. Neal, G. Casarosa, A. R. Buzykaev, M. S. Alam, A. Beaulieu, Wu S. L., M. R. Convery, and Y. G. Kolomensky

Subjects
Physics, Particle physics, Meson, 0103 physical sciences, General Physics and Astronomy, High Energy Physics::Experiment, 010306 general physics, 01 natural sciences, Energy (signal processing), Standard Model
Abstract

We report on a precision measurement of the ratio ${\cal R}_{\tau\mu}^{\Upsilon(3S)} = {\cal B}(\Upsilon(3S)\to\tau^+\tau^-)/{\cal B}(\Upsilon(3S)\to\mu^+\mu^-)$ using data collected with the BaBar detector at the SLAC PEP-II $e^+e^-$ collider. The measurement is based on a 28 fb$^{-1}$ data sample collected at a center-of-mass energy of 10.355 GeV corresponding to a sample of 122 million $\Upsilon(3S)$ mesons. The ratio is measured to be ${\cal R}_{\tau\mu}^{\Upsilon(3S)} = 0.966 \pm 0.008_\mathrm{stat} \pm 0.014_\mathrm{syst}$ and is in agreement with the Standard Model prediction of 0.9948 within 2 standard deviations. The uncertainty in ${\cal R}_{\tau\mu}^{\Upsilon(3S)}$ is almost an order of magnitude smaller than the only previous measurement.

Published
2020
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11. Measurement of electric quadrupole moment in neutron rich $$^{131,132}$$I

Author

P. Blaha, T. Bhattacharjee, A. Saha, S. S. Alam, D. Kumar, D. Banerjee, S. Sarkar, M. Saha Sarkar, and S. K. Das

Subjects
Physics, Nuclear and High Energy Physics, 010308 nuclear & particles physics, Hadron, chemistry.chemical_element, 01 natural sciences, chemistry, Excited state, 0103 physical sciences, Quadrupole, Nuclear fusion, Neutron, Atomic physics, 010306 general physics, Tellurium, Spectroscopy, Electric field gradient
Abstract

The quadrupole moments of the excited levels in neutron rich iodine isotopes, viz., $$^{131}$$ I (5/2 $$_1^+$$ ) and $$^{132}$$ I (3 $$_1^+$$ ), have been measured with LaBr $$_3$$ (Ce) detectors using Time Differential Perturbed Angular Correlation (TDPAC) spectroscopy. The excited levels were populated from $$\beta ^-$$ decay of the radiochemically separated tellurium (Te) fission products produced in $$^{nat}$$ U( $$^4$$ He,f) reaction at E $$_{\alpha }$$ (lab) = 40 MeV from K-130 cyclotron at VECC, Kolkata. The active tellurium fission products were radiochemically doped in metallic tellurium matrix to provide the necessary Electric Field Gradient (EFG) required for TDPAC measurement. The values of quadrupole moments for the 5/2 $$_1^+$$ level of $$^{131}$$ I and 3 $$_1^+$$ level of $$^{132}$$ I were determined to be $$(-)$$ 0.30(1) eb and (−)0.25(2) eb, respectively. The present measurement provides the first experimental determination on the electric quadrupole moment of 5/2 $$_1^+$$ level of $$^{131}$$ I.

Published
2020
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12. Investigation of the Mechanical Behavior of SAC305 Solder Joints at Extreme High Temperatures Using Nanoindentation

Author

Sudan Ahmed, Jeffrey C. Suhling, Mohammad S. Alam, Abdullah Fahim, Pradeep Lall, KM Rafidh Hassan, and Jing Wu

Subjects
010302 applied physics, Interconnection, Materials science, business.industry, Alloy, Modulus, 02 engineering and technology, engineering.material, Nanoindentation, 021001 nanoscience & nanotechnology, 01 natural sciences, Creep, Soldering, 0103 physical sciences, engineering, Microelectronics, Composite material, 0210 nano-technology, business, Elastic modulus
Abstract

Solder joints provide mechanical support, and electrical and thermal interconnection between packaging levels in microelectronics assemblies. Proper functioning of these interconnections and the reliability of the electronic packages depend largely on the mechanical properties of the solder joints. Lead free solders typically provide excellent thermo-mechanical properties and are commonly used as interconnections in electronic packages. However, the exposure of lead free solder joints to complicated thermal histories can degrade their mechanical behavior. For example, aging of lead free solders at high temperature leads to microstructural evolution resulting in reduced mechanical properties and increased creep deformations. Previous investigations on mechanical characterization of lead free solders have mainly emphasized mechanical testing at temperatures up to 125 °C. However, many electronic products are deployed in harsh environment applications including well drilling, geothermal energy, automotive power electronics, and aerospace engines, where solders are exposed to very high temperatures from 125-200 °C. Mechanical properties of lead free solders at elevated temperatures are limited.In this work, we have explored Mechanical behavior and aging effects in SAC305 (96.5Sn-3.0Ag-0.5Cu) solder joints at several extreme high testing temperatures (T = 125, 150, 175, and 200 °C) using the method of nanoindentation. A special high temperature stage and test protocols were used within the nanoindentation system to carefully control the testing temperature, and to make the measurements insensitive to thermal drift problems. Solder joints were extracted from 14 x 14 mm PBGA assemblies (0.8 mm ball pitch, 0.46 mm ball diameter) that were built as part of the iNEMI Characterization of Pb-Free Alloy Alternatives Project. Since the properties of SAC solder joints are highly dependent on crystal orientation, polarized light microscopy was utilized to determine the orientation of the tested joints. For all the experiments, only single grain solder joints were used to avoid introducing any unintentional variation from changes in the crystal orientation across the joint cross-section.To study aging effects, solder joints were preconditioned for 0, 1, 5, 10, and 30 days at T = 125 °C in a box oven. Nanoindentation testing was then performed on the aged specimens at four different test temperatures (T = 125, 150, 175, and 200 °C) to extract the elastic modulus, hardness, and creep performance of the aged material. Throughout this study, a constant force of 10 mN was applied for 900 seconds to monitor the creep displacements and measure the creep strain rate as a function of both temperature and prior aging conditions.As expected, our results have shown that mechanical properties and creep strain rate of solder joints are highly dependent on the test temperature and degrade significantly as the temperature increases. In particular, the aging induced degradation rates for high temperature testing (175-200 °C) were about 10000X than those observed at 125 °C. In addition, the effects of aging on solder joints properties become much more significant as the aging time and test temperature increases.

Published
2020
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13. Head-on Collision of Ion-Acoustic Shock and Solitary Waves in Collisionless Plasma with Pair Ions and Electrons

Author

Mamunur Rashid Talukder and M. S. Alam

Subjects
Shock wave, Physics, 010308 nuclear & particles physics, Plasma parameters, General Physics and Astronomy, Plasma, Electron, 01 natural sciences, Ion, Shock (mechanics), Amplitude, Physics::Plasma Physics, 0103 physical sciences, Soliton, Atomic physics, 010306 general physics
Abstract

Unmagnetized collisionless plasma system consisting of positive and negative ions and electrons is considered to study the head-on collision of ion-acoustic shock and solitary waves (IASWs) and its effects on the formation of shock (monotonic and oscillatory) waves and phase shift. The soliton solution is derived from the two-sided Korteweg-de Vries Burger (KdVB) equations. The KdVB equations are obtained using extend Poincare-Lighthill-Kuo (ePLK) method. It is assumed that the negative ions are immobile and the electrons follow the Boltzmann energy distribution in the plasma. The effects of plasma parameters such as density ratios and kinematic viscosities on electrostatic shock profiles, phase shift, amplitudes, and formation of shock (monotonic and oscillatory) as well as on the soliton solution are investigated. It is found that the density ratio of negative to positive ions plays a vital role on the formation of shock waves and phase shift after collision.

Published
2019
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14. Spectroscopy of low lying states in 150 Sm

Author

Arijit Saha, D. Banerjee, Deepak Pandit, T. Bhattacharjee, J. B. Gupta, S. R. Banerjee, S. S. Alam, R. Guin, S. K. Das, M. Saha Sarkar, Soumik Bhattacharya, S. Sarkar, and Parnika Das

Subjects
Physics, Nuclear and High Energy Physics, Decay scheme, biology, 010308 nuclear & particles physics, Venus, biology.organism_classification, 01 natural sciences, Angular correlation, Excited state, 0103 physical sciences, Atomic physics, 010306 general physics, Spectroscopy, Hpge detector
Abstract

Low lying states of 150Sm have been studied through decay spectroscopy of odd–odd 150Pm, populated with 150Nd(p, n)150Pm reaction at E b e a m = 8.0 MeV using 97% enriched 150Nd target and detecting the γ-rays with the VENUS array comprised of six Compton suppressed Clover HPGe detectors. Nineteen new transitions are placed, four tentative γ-rays are confirmed and eight transitions are found to have altered placements; consequently assigning thirteen new levels to the decay scheme of 150Pm. The spin-parity assignments of the excited levels of 150Sm were made based on logft and angular correlation analysis.

Published
2018
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15. Enhanced multiferroism in Gd-doped BiMn2O5 ceramics

Author

Rana Hossain, M. A. Basith, and M. S. Alam

Subjects
010302 applied physics, Phase transition, Materials science, Condensed matter physics, Rietveld refinement, Process Chemistry and Technology, 02 engineering and technology, Dielectric, 021001 nanoscience & nanotechnology, 01 natural sciences, Ferroelectricity, Surfaces, Coatings and Films, Electronic, Optical and Magnetic Materials, Magnetization, Electric field, 0103 physical sciences, Materials Chemistry, Ceramics and Composites, Antiferromagnetism, Orthorhombic crystal system, 0210 nano-technology
Abstract

Gd doped Bi 1- x Gd x Mn 2 O 5 (x = 0.00–0.12) ceramics are synthesized via solid state reaction technique and they have been investigated for their structural, morphological, magnetic and electric properties. X-ray diffraction experiments and their corresponding Rietveld refinement confirm that the major phase characteristics of all the compositions are orthorhombic. The morphological studies reveal that the average grain size gradually decreases from ∼ 500 nm to ∼ 200 nm due to Gd substitution. The temperature dependent zero field cooled (ZFC) and field cooled (FC) magnetization curves demonstrate an antiferromagnetic Neel transition at 42 K. Due to the substitution of 4% Gd, the phase transition remains unaltered, however, both ZFC and FC curves coincide with each other at an applied magnetic field of 500 Oe. The remanent magnetizations and coercive fields are also found to enhance at room temperature due to the substitution of Gd. The polarization vs. electric field hysteresis loops exhibits the ferroelectric behavior of Bi 1- x Gd x Mn 2 O 5 (x = 0.00–0.12) ceramics at room temperature. Gd substitution also results in enhanced stability of the dielectric constant at wide range of high frequencies with significant suppression of low frequency dispersion particularly for 12% Gd doping. Moreover, a correlation among leakage current, remanent polarization, dielectric constant and microstructure has also been observed while investigating the Gd doped BiMn 2 O 5 ceramics.

Published
2018
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16. VECC array for Nuclear fast Timing and angUlar corRElation studies (VENTURE)

Author

Arijit Saha, Somnath Mukhopadhyay, T. Bhattacharjee, S. S. Alam, P. Bhaskar, Surajit Pal, Debasish Mondal, S. K. Das, S. R. Banerjee, D. Banerjee, and Deepak Pandit

Subjects
Physics, Nuclear and High Energy Physics, Photomultiplier, 010308 nuclear & particles physics, Resolution (electron density), Monte Carlo method, Detector, Time resolution, Scintillator, 01 natural sciences, Cascade, Angular correlation, 0103 physical sciences, Atomic physics, 010306 general physics, Instrumentation
Abstract

The VE CC array for N uclear fast T iming and ang U lar cor RE lation studies (VENTURE) has been developed using several fast Cerium-Bromide (CeBr 3 ) scintillators coupled to Hamamatsu R9779 Photomultiplier tubes. The CeBr 3 detector has been characterised for the spectroscopic properties like energy response, energy resolution, timing resolution and detection efficiency. The response and efficiency of the detector have been compared with the results obtained from a Monte Carlo simulation with GEANT3 package. A time resolution of 144(1) ps and 109(1) ps was obtained for a single detector using 622–512 keV and 1173–1332 keV cascades respectively. The Generalised Centroid Difference (GCD) method has been employed with CeBr 3 detectors by measuring the level lifetimes for the 511.9 keV level of 106 Pd and the 160.6 and 383.8 keV levels of 133 Cs. The angular correlation measurement was performed for the 1173–1332 keV cascade in 60 Ni and the 228–49 keV cascade of 132 I nucleus, populated from the decay of 132 Te produced via 238 U( α , f) reaction.

Published
2017
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17. Electrostatic shock waves in a nonthermal dusty plasma with oppositely charged dust

Author

L. Nahar, M. S. Alam, M. Mobarak Hossen, Abdullah Al Mamun, and Sharmin Sultana

Subjects
Physics, Shock wave, Nuclear and High Energy Physics, Dusty plasma, Radiation, Number density, Plasma parameters, Electron, Plasma, complex mixtures, 01 natural sciences, Charged particle, 010305 fluids & plasmas, Ion, 0103 physical sciences, Astrophysics::Earth and Planetary Astrophysics, Atomic physics, 010303 astronomy & astrophysics, Astrophysics::Galaxy Astrophysics
Abstract

Theoretical and numerical investigations of dust acoustic shock waves (DASHWs) have been carried out in electron-depleted magnetized dusty plasmas (consisting of mobile positively charged as well as negatively charged dust particles, and nonextensive q-distributed ions). The both positively and negatively charged dust kinematic viscosities are taken into account to derive the Burgers equation. It is observed that the viscous force (acting on both polarity charged dust particles) is the dissipitive source and responsible for the formation of DASHWs. It is seen that the electron-depleted magnetized plasma supports both (positive and negative) polarity shock structures. It is also seen that the basic features (i.e., amplitude, width, polarity, phase speed, etc.) of DASHWs are modified by the effects of ion nonextensivity, coefficient of viscosity, oblique angle, negative-to-positive dust mass ratio, ratio of the number of electrons on a negatively charged dust-to-the number of protons on a positively charged dust, and the ratio of the ion number density-to-the negative dust number density. The results of our present investigation may be useful to study the various space and laboratory plasmas, where dissipation due to kinematic viscosity can not be neglected.

Published
2017
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18. Search for Rare or Forbidden Decays of the D0 Meson

Author

T. E. Latham, M. Carpinelli, J. Ocariz, J. W. Gary, V. B. Golubev, Alessandro Pilloni, E. Grauges, Mario Giorgi, Elisa Manoni, N. Tasneem, Yu G. Kolomensky, D. Aston, James R. Wilson, Brian Shuve, R. Calabrese, D. R. Peimer, A. Calcaterra, J. M. Roney, C. Cartaro, Aidan Randle-Conde, J. G. Smith, S. Bettarini, J. L. Ritchie, J. M. LoSecco, Marco Bomben, C. H. Chen, S. M. Spanier, D. Bettoni, Colin Jessop, R. Prepost, D. B. MacFarlane, M. Rama, A. M. Rossi, Joseph Izen, Z. C. Huard, W. Panduro Vazquez, C. Voss, L. M. Cremaldi, J. A. McKenna, H. A. Neal, G. Casarosa, W. R. Innes, W. S. Lockman, A. G. Denig, A. Oyanguren, F. Di Lodovico, D. J. Payne, E. A. Kravchenko, M. Verderi, S. Martellotti, C. Hearty, F. Anulli, B. T. Meadows, G. Raven, V. Poireau, Alessandro Gaz, M. Piccolo, D. J. Summers, M. D. Sokoloff, P. R. Burchat, Abner Soffer, G. Eigen, M. Fritsch, P. C. Kim, Crisostomo Sciacca, G. Rizzo, J. J. Walsh, W. J. Wisniewski, G. Vasseur, K. T. Flood, R. Kowalewski, W. Dunwoodie, U. Mallik, S. H. Robertson, S. Emery, G. Batignani, G. J. King, A. R. Buzykaev, M. S. Alam, D. G. Hitlin, E. A. Kozyrev, R. Cenci, C. Touramanis, E. Fioravanti, A. Zallo, Florian Urs Bernlochner, F. Palombo, T. Lueck, I. M. Nugent, B. G. Pushpawela, N. Neri, R. J. Sobie, L. Vitale, R. Sacco, Herbert Koch, D. S. Chao, A. Beaulieu, D. N. Brown, Douglas Wright, L. Zani, F. Martinez-Vidal, Dominik Müller, M. T. Graham, O. Grünberg, K. Griessinger, M. V. Purohit, J. P. Lees, J. Albert, R. C. Field, M. Davier, A. Roodman, R. M. Seddon, E. Paoloni, T. S. Miyashita, G. D. Lafferty, C. Patrignani, A. J.S. Smith, M. Ebert, E. Luppi, D. E. Hutchcroft, Stephen Sekula, R. Gorodeisky, D. A. Roberts, Roland Waldi, F. Ferroni, T. S. Mattison, T. Leddig, So R. Y., F. De Mori, C. L. Davis, P. Ongmongkolkul, R. Godang, F. Forti, C. Hast, D. J. Lange, G. Piredda, Paul Fraser Harrison, J. Dorfan, Heiko Lacker, A. Hafner, E. M. T. Puccio, B. Bhuyan, Ju-Young Kim, Maurizio Biasini, V. Tisserand, G. R. Bonneaud, M. Rotondo, R. Cheaib, Stephen Robert Wagner, B. G. Fulsom, Tim Adye, T. J. Gershon, K. R. Schubert, V. P. Druzhinin, C. Bozzi, K. Honscheid, M. K. Sullivan, V. E. Blinov, G. De Nardo, V. Santoro, R. D. Kass, Owen Rosser Long, Yu I. Skovpen, F. Simonetto, J. A. Ernst, W. Gradl, L. Lanceri, R. J. Barlow, B. Echenard, M. Röhrken, C. H. Cheng, M. Posocco, R. Faccini, F. Ferrarotto, A. J. Lankford, E. Gabathuler, F. C. Porter, D. Bernard, G. Wormser, L. Sun, G. Finocchiaro, J. Chauveau, T. Schroeder, E. Ben-Haim, R. de Sangro, Adrian John Bevan, M. Hess, F. Le Diberder, D. W. G. S. Leith, X. C. Lou, G. A. Cowan, G. Calderini, D. Gamba, M. Bellis, F. F. Wilson, Martino Margoni, M. Chrzaszcz, A. Filippi, B. Oberhof, A. M. Eisner, Y. Li, R. Cowan, Sw. Banerjee, S. Akar, G. Simi, S. Prell, I. Garzia, N. Guttman, James H Cochran, G. Marchiori, K. Yu Todyshev, R. Stroili, A. Lusiani, P. Taras, E. P. Solodov, J. P. Coleman, R. F. Schwitters, Hamad Ahmed, Andrei Gritsan, A. M. Lutz, S. Passaggio, C. Bünger, A. Jawahery, A. P. Onuchin, G. Cibinetto, A. Palano, S. Luitz, P. Patteri, J. Va’vra, Wu S. L., M. R. Convery, B. N. Ratcliff, Biplab Dey, I. M. Peruzzi, S. I. Serednyakov, F. Bianchi, S. Dittrich, and N. Arnaud

Subjects
Physics, Particle physics, Muon, Annihilation, Meson, Electron–positron annihilation, 0103 physical sciences, General Physics and Astronomy, Electron, 010306 general physics, 01 natural sciences
Abstract

We present a search for nine lepton-number-violating and three lepton-flavor-violating neutral charm decays of the type D^{0}→h^{'-}h^{-}l^{'+}l^{+} and D^{0}→h^{'-}h^{+}l^{'±}l^{∓}, where h and h^{'} represent a K or π meson and l and l^{'} an electron or muon. The analysis is based on 468 fb^{-1} of e^{+}e^{-} annihilation data collected at or close to the ϒ(4S) resonance with the BABAR detector at the SLAC National Accelerator Laboratory. No significant signal is observed for any of the twelve modes, and we establish 90% confidence level upper limits on the branching fractions in the range (1.0-30.6)×10^{-7}. The limits are between 1 and 3 orders of magnitude more stringent than previous measurements.

Published
2020
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19. Sulphur doses and application times on yield and oil quality of canola grown in calcareous soil

Author

A. Jalal, A. Muhammad, M. Younis, and S. Alam

Subjects
0301 basic medicine, Linoleic acid, Aceite, canola, 01 natural sciences, chemistry.chemical_compound, TX341-641, Canola, 010303 astronomy & astrophysics, Mathematics, education.field_of_study, Bolting, biology, Ácido oleico, Oil, Horticulture, Erucic acid, Calcareous, lcsh:Nutrition. Foods and food supply, linoleic acid, food.ingredient, Population, Randomized block design, lcsh:TX341-641, oil, Producción, 03 medical and health sciences, Sulphur, food, Azufre, 0103 physical sciences, education, 030109 nutrition & dietetics, Nutrition. Foods and food supply, Protein, Organic Chemistry, Production, Ácido linoleico, biology.organism_classification, Oleic acid, chemistry, oleic acid, Seedling, Proteína, production, sulphur, protein, Food Science
Abstract

Pakistan has been constantly deficient in its oil seed production and it is very difficult to meet the edible oil requirement of its ever-increasing population. A field experiment was conducted at the Agronomy Research Farm, The University of Agriculture Peshawar, Northern Pakistan during winter (2013–14). Five sulphur levels (15, 30, 45, 60 and 75 kg·ha-1) and times of application (at seedling, bolting and flowering stages) were used for the canola variety Abasin-95. The experiment was laid out in a randomized complete block design replicated four times on a 5 m × 3.2 m plot size. The results showed that the sulphur-applied plots gave the highest seed yield, biological yield, glucosinolate, erucic acid, oil content, protein content, oleic acid and linoleic acid compared to the control plots. Sulphur applied at the rate of 60 kg·ha-1 and applied at the bolting stage increased seed yield, biological yield, oil content, and protein content. Pakistán ha sido constante y crónicamente deficiente en producción de semillas oleaginosas y es muy difícil cumplir con la demanda de aceites comestibles para una población cada vez mayor. Se realizó un experimento de campo en la granja de investigación agronómica de la Universidad de Agricultura Peshawar, en el norte de Pakistán, durante el invierno (2013–14). Los cinco niveles de azufre (15, 30, 45, 60 y 75 kg·ha-1) y su tiempo de aplicación (en las etapas de plántula, floración y floración) se utilizaron para la variedad de canola (Abasin-95). El experimento se realizó en un diseño de bloques completos al azar que se replicó cuatro veces con un tamaño de parcela de 5 m × 3,2 m. Los resultados mostraron que las parcelas aplicadas con azufre dieron el mayor rendimiento de semilla, rendimiento biológico, glucosinolato, ácido erúcico, contenido de aceite, contenido de proteína, ácido oleico y ácido linoleico en comparación con las parcelas de control. El azufre se aplicó en una tasa de 60 kg·ha-1 y se aplicó en la etapa de empernado, incrementando el rendimiento de las semillas, el rendimiento biológico, el contenido de aceite y el contenido de proteínas.

Published
2020
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20. Extraction of form Factors from a Four-Dimensional Angular Analysis of B¯→D*ℓ−ν¯ℓ

Author

V. B. Golubev, T. E. Latham, M. Carpinelli, D. B. MacFarlane, M. Rama, M. Rotondo, G. De Nardo, M. Röhrken, J. L. Ritchie, W. R. Innes, R. Y. So, A. Roodman, R. Sacco, Yu G. Kolomensky, J. P. Lees, R. M. Seddon, A. J.S. Smith, Roland Waldi, F. Ferroni, J. Dorfan, N. Tasneem, V. Santoro, Simon Akar, C. Bünger, J. J. Walsh, E. A. Kozyrev, B. T. Meadows, G. Raven, Paul Fraser Harrison, M. D. Sokoloff, P. R. Burchat, H. A. Neal, G. Casarosa, W. J. Wisniewski, D. N. Brown, Ju-Young Kim, Stephen Robert Wagner, Aidan Randle-Conde, G. R. Bonneaud, B. Bhuyan, A. Jawahery, R. Kowalewski, P. Ongmongkolkul, A. P. Onuchin, B. G. Fulsom, G. J. King, G. Cibinetto, M. K. Sullivan, S. Martellotti, C. H. Cheng, James R. Wilson, Andrei Gritsan, R. Gorodeisky, D. A. Roberts, V. Poireau, A. Hafner, E. M. T. Puccio, R. de Sangro, S. L. Wu, M. Piccolo, I. M. Nugent, R. Calabrese, G. Batignani, Crisostomo Sciacca, G. Rizzo, G. D. Lafferty, E. Ben-Haim, D. S. Chao, A. M. Lutz, A. R. Buzykaev, M. S. Alam, M. Davier, S. Passaggio, M. V. Purohit, S. H. Robertson, S. Emery, J. Albert, A. Beaulieu, J. Chauveau, F. De Mori, A. Palano, Herbert Koch, Heiko Lacker, J. M. Roney, S. Luitz, P. Patteri, J. Va’vra, A. M. Rossi, Joseph Izen, K. Griessinger, W. Dunwoodie, J. Ocariz, E. Fioravanti, J. G. Smith, G. Eigen, Florian Urs Bernlochner, F. Palombo, T. Lueck, M. Ebert, K. R. Schubert, Stephen Sekula, J. W. Gary, Abner Soffer, T. S. Miyashita, R. Cheaib, V. P. Druzhinin, C. Bozzi, K. Honscheid, V. E. Blinov, J. M. LoSecco, Z. C. Huard, W. Panduro Vazquez, F. Di Lodovico, D. J. Payne, R. J. Barlow, Tim Adye, B. G. Pushpawela, R. D. Kass, P. Taras, E. P. Solodov, M. Posocco, T. S. Mattison, Alessandro Pilloni, W. S. Lockman, D. R. Peimer, C. Hast, D. J. Lange, G. Piredda, F. Anulli, A. Filippi, J. A. McKenna, D. W. G. S. Leith, Alessandro Gaz, G. Calderini, E. Paoloni, R. Cowan, D. Gamba, J. P. Coleman, M. Bellis, Martino Margoni, T. J. Gershon, Maurizio Biasini, R. F. Schwitters, Owen Rosser Long, K. Yu Todyshev, R. Stroili, L. Sun, A. Oyanguren, span>B ar, Adrian John Bevan, F. Simonetto, S. Prell, I. Garzia, James H Cochran, A. Lusiani, C. Touramanis, C. L. Davis, X. C. Lou, R. Godang, P. C. Kim, O. Grünberg, M. Heß, M. Fritsch, R. Cenci, A. Zallo, Yu I. Skovpen, C. Hearty, Elisa Manoni, B. Echenard, D. J. Summers, D. Aston, D. Bernard, M. Bomben, R. J. Sobie, L. Vitale, F. Martinez-Vidal, Dominik Müller, span, N. Guttman, E. Luppi, M. T. Graham, Colin Jessop, R. Prepost, I. M. Peruzzi, G. Marchiori, E. A. Kravchenko, S. I. Serednyakov, G. Vasseur, K. T. Flood, F. Bianchi, J. A. Ernst, Douglas Wright, S. Dittrich, E. Gabathuler, F. C. Porter, E. Grauges, L. Zani, D. E. Hutchcroft, T. Leddig, W. Gradl, Mario Giorgi, R. Faccini, M. Chrzaszcz, M. R. Convery, C. Voß, F. Ferrarotto, A. J. Lankford, F. Le Diberder, A. M. Eisner, L. Lanceri, B. N. Ratcliff, Sw. Banerjee, Biplab Dey, G. Simi, Hamad Ahmed, D. Bettoni, N. Arnaud, A. Calcaterra, C. Cartaro, G. Finocchiaro, C. Patrignani, V. Tisserand, A. G. Denig, S. Bettarini, F. F. Wilson, B. Oberhof, G. A. Cowan, C. H. Chen, S. M. Spanier, G. Wormser, Y. Li, M. Verderi, T. Schroeder, U. Mallik, N. Neri, L. M. Cremaldi, D. G. Hitlin, R. C. Field, and F. Forti

Subjects
Physics, Quantum chromodynamics, Semileptonic decay, Particle physics, Meson, 010308 nuclear & particles physics, Branching fraction, Electron–positron annihilation, Crossing, Form factor (quantum field theory), General Physics and Astronomy, 01 natural sciences, 0103 physical sciences, High Energy Physics::Experiment, B meson, 010306 general physics
Abstract

An angular analysis of the decay B[over ¯]→D^{*}l^{-}ν[over ¯]_{l}, l∈{e,μ}, is reported using the full e^{+}e^{-} collision data set collected by the BABAR experiment at the ϒ(4S) resonance. One B meson from the ϒ(4S)→BB[over ¯] decay is fully reconstructed in a hadronic decay mode, which constrains the kinematics and provides a determination of the neutrino momentum vector. The kinematics of the semileptonic decay is described by the dilepton mass squared, q^{2}, and three angles. The first unbinned fit to the full four-dimensional decay rate in the standard model is performed in the so-called Boyd-Grinstein-Lebed approach, which employs a generic q^{2} parametrization of the underlying form factors based on crossing symmetry, analyticity, and QCD dispersion relations for the amplitudes. A fit using the more model-dependent Caprini-Lellouch-Neubert (CLN) approach is performed as well. Our form factor shapes show deviations from previous fits based on the CLN parametrization. The latest form factors also provide an updated prediction for the branching fraction ratio R(D^{*})≡B(B[over ¯]→D^{*}τ^{-}ν[over ¯]_{τ})/B(B[over ¯]→D^{*}l^{-}ν[over ¯]_{l})=0.253±0.005. Finally, using the well-measured branching fraction for the B[over ¯]→D^{*}l^{-}ν[over ¯]_{l} decay, a value of |V_{cb}|=(38.36±0.90)×10^{-3} is obtained that is consistent with the current world average for exclusive B[over ¯]→D^{(*)}l^{-}ν[over ¯]_{l} decays and remains in tension with the determination from inclusive semileptonic B decays to final states with charm.

Published
2019
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21. Study of radioactivity built-up and decay with singles time-stamped data

Author

T. Bhattacharjee, Abhijit Bisoi, Balaram Dey, Arijit Saha, Anik Adhikari, Amitabha De, Y. Sapkota, M. Saha Sarkar, Ananya Das, D. Pramanik, S. Sarkar, Sathi Sharma, A. K. Gupta, S. S. Alam, and Sangeeta Das

Subjects
Physics - Instrumentation and Detectors, Nuclear Theory, chemistry.chemical_element, FOS: Physical sciences, Germanium, 01 natural sciences, 030218 nuclear medicine & medical imaging, Nuclear physics, Nuclear Theory (nucl-th), 03 medical and health sciences, 0302 clinical medicine, 0103 physical sciences, Nuclear Experiment (nucl-ex), Nuclear Experiment, Instrumentation, Nuclear theory, Mathematical Physics, Physics, 010308 nuclear & particles physics, Detector, Instrumentation and Detectors (physics.ins-det), Semiconductor detector, chemistry, Excited state, Constant (mathematics), Beam (structure)
Abstract

Time-stamped data have been used to estimate the decay half-lives of radioactive 118mSb and 64,66,68Ga nuclei. These nuclei are populated through the reaction 4He (Elab = 32 MeV) + nat In and p (Elab = 10 MeV) + natZn, respectively. The g -rays emitted by the excited daughter nuclei are detected by a single high purity germanium (HPGe) detector and the data are acquired using a CAEN 5780M desktop digitizer. Half-lives of different orders of magnitudes for the above mentioned nuclei are obtained from both the decay of parent and the growth of daughter nuclei. It is observed that the half-lives obtained from both these techniques match fairly well and also are consistent with the reported values. It is demonstrated that the time-stamped data can be useful while studying certain half-lives which are too long for measurement using in-beam electronic technique and too short for decay studies in off-beam methods. The data also have a special relevance for constant monitoring of beam current and beam-tuning., 13 Pages, 4 figures

Published
2019

22. Target oriented dimensionality reduction of hyperspectral data by Kernel Fukunaga–Koontz Transform

Author

Hamidullah Binol, Shuhrat Ochilov, Abdullah Bal, and Mohammad S. Alam

Subjects
Computer science, Mechanical Engineering, Dimensionality reduction, Feature extraction, Supervised learning, 0211 other engineering and technologies, Hyperspectral imaging, Feature selection, 02 engineering and technology, computer.software_genre, 01 natural sciences, Atomic and Molecular Physics, and Optics, Electronic, Optical and Magnetic Materials, 010309 optics, Kernel method, Kernel (image processing), 0103 physical sciences, Principal component analysis, Data mining, Electrical and Electronic Engineering, computer, 021101 geological & geomatics engineering
Abstract

Principal component analysis (PCA) is a popular technique in remote sensing for dimensionality reduction. While PCA is suitable for data compression, it is not necessarily an optimal technique for feature extraction, particularly when the features are exploited in supervised learning applications (Cheriyadat and Bruce, 2003) [1] . Preserving features belonging to the target is very crucial to the performance of target detection/recognition techniques. Fukunaga–Koontz Transform (FKT) based supervised band reduction technique can be used to provide this requirement. FKT achieves feature selection by transforming into a new space in where feature classes have complimentary eigenvectors. Analysis of these eigenvectors under two classes, target and background clutter, can be utilized for target oriented band reduction since each basis functions best represent target class while carrying least information of the background class. By selecting few eigenvectors which are the most relevant to the target class, dimension of hyperspectral data can be reduced and thus, it presents significant advantages for near real time target detection applications. The nonlinear properties of the data can be extracted by kernel approach which provides better target features. Thus, we propose constructing kernel FKT (KFKT) to present target oriented band reduction. The performance of the proposed KFKT based target oriented dimensionality reduction algorithm has been tested employing two real-world hyperspectral data and results have been reported consequently.

Published
2017
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23. Self-Organizing Hierarchical Particle Swarm Optimization of Correlation Filters for Object Recognition

Author

Muhammad Omer Bin Saeed, Saad Rehman, Mohammad S. Alam, Muhammad Abbas, Ali Hassan, Farhan Riaz, Rupert Young, and Sara Tehsin

Subjects
QA75, General Computer Science, Computer science, 02 engineering and technology, 01 natural sciences, object recognition, 010309 optics, Correlation, Distortion, 0103 physical sciences, 0202 electrical engineering, electronic engineering, information engineering, TA0329, General Materials Science, Multi-swarm optimization, Cluster analysis, optimal trade-off, business.industry, General Engineering, Cognitive neuroscience of visual object recognition, Particle swarm optimization, Pattern recognition, G400 Computer Science, Correlation filter, Filter (video), 020201 artificial intelligence & image processing, lcsh:Electrical engineering. Electronics. Nuclear engineering, Artificial intelligence, business, hierarchical particle swarm optimization, lcsh:TK1-9971, Algorithm
Abstract

Advanced correlation filters are an effective tool for target detection within a particular class. Most correlation filters are derived from a complex filter equation leading to a closed form filter solution. The response of the correlation filter depends upon the selected values of the optimal trade-off (OT) parameters. In this paper, the OT parameters are optimized using particle swarm optimization with respect to two different cost functions. The optimization has been made generic and is applied to each target separately in order to achieve the best possible result for each scenario. The filters obtained using standard particle swarm optimization (PSO) and hierarchal particle swarm optimization (HPSO) algorithms have been compared for various test images with the filter solutions available in the literature. It has been shown that optimization improves the performance of the filters significantly.

Published
2017
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24. Solution of Falkner- Skan Unsteady MHD Boundary Layer Flow and Heat Transfer Past a Moving Porous Wedge in a Nanofluid

Author

M. A. Ali, M.J. Haque Munshi, M.Z. Uddin Chowdhury, Md. Abdul Alim, and M. S. Alam

Subjects
Chemistry, Prandtl number, Thermodynamics, 02 engineering and technology, General Medicine, Mechanics, 021001 nanoscience & nanotechnology, 01 natural sciences, Sherwood number, Nusselt number, Thermophoresis, Lewis number, 010305 fluids & plasmas, Forced convection, symbols.namesake, Boundary layer, 0103 physical sciences, Heat transfer, symbols, 0210 nano-technology
Abstract

The present problem deals with the effect of various dimensionless parameters on the forced convection unsteady MHD boundary layer flow and heat transfer over a permeable wedge stretching surface in a nanofluid. The effects of Brownian motion and thermophoresis are considered. The solution for the velocity, temperature and nanoparticle concentration depends on various dimensionless parameters like Prandtl number Pr, velocity ratio parameter λ, permeability parameter K * , unsteady parameter A, pressure gradient parameter β, magnetic parameter M. The local similarity transformation is used to convert the governing partial differential equations into coupled third order non-linear ordinary differential equations. These equations are numerically solved using suitable method along with shooting technique. Numerical results are obtained for distributions of velocity, temperature and nanoparticle concentration, as well as, for the skin friction, local Nusselt number and local Sherwood number for several values of governing parameters. The numerical results are shown graphically and also in a tabular form. The velocity decreases for increasing values of velocity ratio parameter but increases for magnetic parameter, unsteady parameter, permeability parameter and pressure gradient parameter. The temperature profiles decreases for thermophoresis parameter Prandtl number and velocity ratio parameter whereas the temperature remains unchanged for Brownian motion parameter. Again, nanoparticle concentration profiles increases for Brownian motion parameter but decreases for thermophoresis parameter, Lewis number and velocity ratio parameter. Besides, the results of rate of velocity and rate of heat transfer are compared with previously published work for the validity and accuracy and found to be in good agreement.

Published
2017
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25. Effects of nonextensivity on the electron-acoustic solitary structures in a magnetized electron−positron−ion plasma

Author

M. S. Alam, M. M. Rahman, A. Rafat, and Abdullah Al Mamun

Subjects
Physics, Antiparticle, Electron density, Physics and Astronomy (miscellaneous), Plasma, Electron, Condensed Matter Physics, 01 natural sciences, Charged particle, 010305 fluids & plasmas, Ion, Positron, Physics::Plasma Physics, Physics::Space Physics, 0103 physical sciences, Electron temperature, Astrophysics::Earth and Planetary Astrophysics, Atomic physics, 010303 astronomy & astrophysics
Abstract

Obliquely propagating electron-acoustic solitary waves (EASWs) in a magnetized electron−positron−ion plasma (containing nonextensive hot electrons and positrons, inertial cold electrons, and immobile positive ions) are precisely investigated by deriving the Zakharov–Kuznetsov equation. It is found that the basic features (viz. polarity, amplitude, width, phase speed, etc.) of the EASWs are significantly modified by the effects of the external magnetic field, obliqueness of the system, nonextensivity of hot positrons and electrons, ratio of the hot electron temperature to the hot positron temperature, and ratio of the cold electron number density to the hot positron number density. The findings of our results can be employed in understanding the localized electrostatic structures and the characteristics of EASWs in various astrophysical plasmas.

Published
2016
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26. Numerical Investigations of Two-phase Flows through Enhanced Microchannels

Author

P. K. Mishra, Kaushal Kishor, Abhishek Kumar Chandra, and M. S. Alam

Subjects
Pressure drop, Microchannel, microchannel, liquid–liquid flows, pressure drop, slug flow, enhanced microchannel, Chemistry, business.industry, Process Chemistry and Technology, Microfluidics, Mixing (process engineering), Thermodynamics, 02 engineering and technology, General Chemistry, Mechanics, Computational fluid dynamics, 021001 nanoscience & nanotechnology, Slug flow, 01 natural sciences, Biochemistry, 010305 fluids & plasmas, Mass transfer, 0103 physical sciences, Volume of fluid method, 0210 nano-technology, business
Abstract

Microfluidic devices are quite important for process industries, as these devices can intensify heat and mass transfer in two-phase reaction systems. Two-phase reaction systems, such as gas-liquid and liquid-liquid reactions with certain limitations have already been carried out in microfluidic systems by a few authors. However, these concepts are still under development and a detailed understanding of the hydrodynamics involve is required. Hydrodynamics studies are inherently crucial to provide precise reaction conditions and identify asymptotic performance limits. In the present work, Computational Fluid Dynamics (CFD) simulation was carried out to investigate the hydrodynamics involved in the T-junction enhanced microchannel. The slug formation, slug size, slug shape, and pressure drop in the enhanced microchannel were predicted using the volume of fluid (VOF) for water-cyclohexane system. The effects of obstruction spacing on pressure drop, slug lengths, and mixing within the slug were also examined. This study revealed that mixing enhances tremendously within the slug and at the interface in the enhanced microchannel, but with slightly greater pressure drop. However, an increase in obstruction spacing affects the slug formation, unit slug length, and pressure drop.

Published
2016
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27. Observation of the Decay D0→K−π+e+e−

Author

C. Bünger, Stephen Sekula, A. Oyanguren, A. Jawahery, C. Bozzi, J. Chauveau, F. De Mori, K. Honscheid, E. A. Kozyrev, N. Tasneem, Heiko Lacker, Aidan Randle-Conde, R. J. Barlow, G. R. Bonneaud, R. Cenci, C. Touramanis, A. Zallo, Florian Urs Bernlochner, G. Cibinetto, B. Bhuyan, F. Palombo, T. Lueck, B. G. Fulsom, E. P. Solodov, T. S. Miyashita, S. Bettarini, S. Prell, O. Grünberg, D. W. G. S. Leith, Maurizio Biasini, M. Posocco, G. Calderini, James H Cochran, J. L. Ritchie, I. M. Peruzzi, R. Gorodeisky, D. A. Roberts, S. I. Serednyakov, A. G. Denig, K. R. Schubert, Owen Rosser Long, H. A. Neal, G. Casarosa, A. M. Rossi, F. Bianchi, A. Lusiani, V. P. Druzhinin, V. Poireau, T. S. Mattison, V. B. Golubev, G. Wormser, J. A. Ernst, W. Gradl, A. Palano, T. Schroeder, A. Hafner, Joseph Izen, L. Lanceri, S. Emery, R. Y. So, M. Bellis, S. Dittrich, C. Hearty, P. Ongmongkolkul, C. Hast, D. J. Lange, G. Piredda, W. J. Wisniewski, E. M. T. Puccio, A. R. Buzykaev, M. S. Alam, M. T. Graham, Eleonora Luppi, M. Piccolo, A. P. Onuchin, A. Beaulieu, S. Martellotti, M. Carpinelli, L. M. Cremaldi, J. M. Roney, L. Sun, T. J. Gershon, B. Echenard, James R. Wilson, G. Batignani, Z. C. Huard, W. Panduro Vazquez, G. J. King, S. Luitz, D. Bernard, P. C. Kim, M. V. Purohit, D. J. Summers, P. Patteri, D. G. Hitlin, W. R. Innes, R. F. Schwitters, J. Va’vra, E. A. Kravchenko, J. Albert, A. Filippi, Elisa Manoni, Colin Jessop, R. Prepost, D. Aston, J. G. Smith, R. C. Field, E. Ben-Haim, Adrian John Bevan, F. Forti, W. S. Lockman, Crisostomo Sciacca, F. Anulli, W. Dunwoodie, R. Cowan, J. Dorfan, J. J. Walsh, Y. Li, A. M. Eisner, I. M. Nugent, Alessandro Gaz, A. Calcaterra, i> ar, B. G. Pushpawela, Tim Adye, R. Sacco, D. N. Brown, A. M. Lutz, R. D. Kass, M. Bomben, R. J. Sobie, G. Finocchiaro, Sw. Banerjee, C. H. Cheng, T. E. Latham, S. H. Robertson, L. Vitale, F. Di Lodovico, G. Eigen, R. de Sangro, S. Passaggio, S. L. Wu, R. Faccini, F. Ferrarotto, A. J. Lankford, F. Martinez-Vidal, C. Cartaro, Dominik Müller, J. P. Lees, D. J. Payne, Herbert Koch, F. Le Diberder, G. D. Lafferty, N. Arnaud, R. Kowalewski, M. Rotondo, F. F. Wilson, M. R. Convery, A. J.S. Smith, Yu. I. Skovpen, G. De Nardo, Abner Soffer, D. S. Chao, B. Oberhof, M. Röhrken, Simon Akar, Yu G. Kolomensky, K. Griessinger, K. Yu. Todyshev, B. N. Ratcliff, M. Davier, V. Santoro, B. T. Meadows, G. Vasseur, A. Roodman, G. A. Cowan, Douglas Wright, K. T. Flood, G. Raven, R. Godang, R. M. Seddon, M. D. Sokoloff, E. Fioravanti, L. Zani, P. R. Burchat, E. Paoloni, R. Stroili, Roland Waldi, P. Taras, Alessandro Pilloni, F. Ferroni, D. R. Peimer, Roberto Calabrese, D. B. MacFarlane, D. Gamba, M. Rama, Paul Fraser Harrison, J. A. McKenna, Ju-Young Kim, Stephen Robert Wagner, Hamad Ahmed, J. Ocariz, M. K. Sullivan, N. Guttman, M. Heß, J. W. Gary, J. P. Coleman, E. Grauges, Mario Giorgi, R. Cheaib, G. Marchiori, E. Gabathuler, F. C. Porter, span> B, F. Simonetto, J. M. LoSecco, B. Dey, C. H. Chen, X. C. Lou, S. M. Spanier, Martino Margoni, M. Chrzaszcz, C. Voß, Vladimir Blinov, D. Bettoni, Andrei Gritsan, I. Garzia, D. E. Hutchcroft, C. Patrignani, G. Rizzo, V. Tisserand, T. Leddig, M. Verderi, U. Mallik, N. Neri, M. Fritsch, Gabriele Simi, C. L. Davis, and M. Ebert

Subjects
Physics, Particle physics, Annihilation, Branching fraction, 0103 physical sciences, General Physics and Astronomy, Resonance, Invariant mass, 010306 general physics, 01 natural sciences, Energy (signal processing), Standard Model
Abstract

We report the observation of the rare charm decay D^{0}→K^{-}π^{+}e^{+}e^{-}, based on 468 fb^{-1} of e^{+}e^{-} annihilation data collected at or close to the center-of-mass energy of the ϒ(4S) resonance with the BABAR detector at the SLAC National Accelerator Laboratory. We find the branching fraction in the invariant mass range 0.675

Published
2019
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28. Search for a Stable Six-Quark State at BABAR

Author

J. Chauveau, F. De Mori, Heiko Lacker, J. L. Ritchie, Yu. I. Skovpen, S. I. Serednyakov, S. Bettarini, G. Finocchiaro, R. Y. So, K. R. Schubert, J. Dorfan, F. F. Wilson, R. Gorodeisky, D. A. Roberts, Roberto Calabrese, B. Oberhof, B. Bhuyan, K. Yu. Todyshev, P. Taras, A. Hafner, Giulia Casarosa, G. Wormser, V. B. Golubev, E. M. T. Puccio, J. Ocariz, J. W. Gary, D. B. MacFarlane, G. Rizzo, M. Rama, E. Grauges, Stefan Spanier, S. Prell, James H Cochran, N. Tasneem, Mario Giorgi, R. F. Schwitters, A. Lusiani, H. A. Neal, A. Calcaterra, R. Cheaib, W. R. Innes, A. Palano, V. P. Druzhinin, Randall Sobie, T. Schroeder, C. H. Cheng, Maurizio Biasini, D. Bettoni, C. Cartaro, Aidan Randle-Conde, Abner Soffer, R. Cenci, I. M. Peruzzi, B. Echenard, G. R. Bonneaud, Tim Adye, David Hutchcroft, J. M. LoSecco, D. Bernard, P. C. Kim, A. Zallo, R. de Sangro, B. Dey, R. D. Kass, Owen Rosser Long, S. L. Wu, S. Luitz, P. Patteri, J. J. Walsh, J. Va’vra, W. J. Wisniewski, R. Stroili, A. G. Denig, J. P. Lees, R. Godang, M. T. Graham, Eleonora Luppi, G. J. King, D. N. Brown, I. Garzia, A. R. Buzykaev, M. S. Alam, A. P. Onuchin, L. Sun, R. Sacco, David Lange, W. Dunwoodie, Y. Li, C. Patrignani, B. G. Fulsom, V. Tisserand, J. A. McKenna, Adrian John Bevan, A. Beaulieu, B. G. Pushpawela, Andrei Gritsan, A. M. Lutz, E. Paoloni, N. Arnaud, Colin Jessop, R. Prepost, G. D. Lafferty, Douglas Wright, V. Santoro, L. Zani, R. Kowalewski, L. M. Cremaldi, J. A. Ernst, W. Gradl, S. Passaggio, L. Lanceri, M. R. Convery, C. Bünger, Florian Urs Bernlochner, James R. Wilson, F. Palombo, T. Lueck, A. J.S. Smith, E. Gabathuler, A. Jawahery, F. C. Porter, M. Heß, Martino Margoni, Simon Akar, D. G. Hitlin, G. Cibinetto, G. Vasseur, K. T. Flood, E. A. Kozyrev, A. Filippi, Alessandro Pilloni, D. R. Peimer, B. N. Ratcliff, Hamad Ahmed, B. T. Meadows, G. Raven, M. V. Purohit, R. C. Field, F. Forti, M. Chrzaszcz, M. D. Sokoloff, Nicola Neri, P. R. Burchat, R. Cowan, C. Voß, J. Albert, G. Eigen, D. W. G. S. Leith, A. M. Eisner, M. Ebert, Stephen Sekula, F. Bianchi, D. Gamba, E. P. Solodov, T. S. Miyashita, S. Dittrich, G. Calderini, C. Bozzi, K. Honscheid, C. Hearty, R. J. Barlow, M. Posocco, Sw. Banerjee, S. Emery, N. Guttman, G. De Nardo, D. J. Summers, M. Bellis, G. Marchiori, M. Bomben, L. Vitale, F. Ferrarotto, A. J. Lankford, F. Le Diberder, F. Martinez-Vidal, Dominik Müller, M. Fritsch, span, G. A. Cowan, J. M. Roney, X. C. Lou, Gabriele Simi, J. G. Smith, C. L. Davis, F. Di Lodovico, D. J. Payne, Riccardo Faccini, A. Roodman, R. M. Seddon, E. Fioravanti, Roland Waldi, F. Ferroni, M. Rotondo, M. Röhrken, Paul Fraser Harrison, V. Poireau, Ju-Young Kim, M. Piccolo, G. Batignani, E. Ben-Haim, Stephen Robert Wagner, M. K. Sullivan, A. M. Rossi, Joseph Izen, S. Martellotti, M. Carpinelli, I. M. Nugent, D. S. Chao, M. Davier, Z. C. Huard, W. Panduro Vazquez, W. S. Lockman, J. P. Coleman, F. Anulli, Alessandro Gaz, S. H. Robertson, Herbert Koch, K. Griessinger, A. Oyanguren, span>B ar, C. Touramanis, T. Leddig, O. Grünberg, Elisa Manoni, D. Aston, M. Verderi, T. E. Latham, T. S. Mattison, C. Hast, G. Piredda, U. Mallik, T. J. Gershon, F. Simonetto, Yu G. Kolomensky, E. A. Kravchenko, C. H. Chen, Vladimir Blinov, Crisostomo Sciacca, P. Ongmongkolkul, Ministerio de Ciencia e Innovación (España), Lees, J, Poireau, V, Tisserand, V, Grauges, E, Palano, A, Eigen, G, Brown, D, Kolomensky, Y, Fritsch, M, Koch, H, Schroeder, T, Hearty, C, Mattison, T, Mckenna, J, So, R, Blinov, V, Buzykaev, A, Druzhinin, V, Golubev, V, Kozyrev, E, Kravchenko, E, Onuchin, A, Serednyakov, S, Skovpen, Y, Solodov, E, Todyshev, K, Lankford, A, Gary, J, Long, O, Eisner, A, Lockman, W, Panduro Vazquez, W, Chao, D, Cheng, C, Echenard, B, Flood, K, Hitlin, D, Kim, J, Li, Y, Miyashita, T, Ongmongkolkul, P, Porter, F, Rohrken, M, Huard, Z, Meadows, B, Pushpawela, B, Sokoloff, M, Sun, L, Smith, J, Wagner, S, Bernard, D, Verderi, M, Bettoni, D, Bozzi, C, Calabrese, R, Cibinetto, G, Fioravanti, E, Garzia, I, Luppi, E, Santoro, V, Calcaterra, A, De Sangro, R, Finocchiaro, G, Martellotti, S, Patteri, P, Peruzzi, I, Piccolo, M, Rotondo, M, Zallo, A, Passaggio, S, Patrignani, C, Lacker, H, Bhuyan, B, Mallik, U, Chen, C, Cochran, J, Prell, S, Gritsan, A, Arnaud, N, Davier, M, Le Diberder, F, Lutz, A, Wormser, G, Lange, D, Wright, D, Coleman, J, Gabathuler, E, Hutchcroft, D, Payne, D, Touramanis, C, Bevan, A, Di Lodovico, F, Sacco, R, Cowan, G, Banerjee, S, Davis, C, Denig, A, Gradl, W, Griessinger, K, Hafner, A, Schubert, K, Barlow, R, Lafferty, G, Cenci, R, Jawahery, A, Roberts, D, Cowan, R, Robertson, S, Seddon, R, Dey, B, Neri, N, Palombo, F, Cheaib, R, Cremaldi, L, Godang, R, Summers, D, Taras, P, De Nardo, G, Sciacca, C, Raven, G, Jessop, C, Losecco, J, Honscheid, K, Kass, R, Gaz, A, Margoni, M, Posocco, M, Simi, G, Simonetto, F, Stroili, R, Akar, S, Ben-Haim, E, Bomben, M, Bonneaud, G, Calderini, G, Chauveau, J, Marchiori, G, Ocariz, J, Biasini, M, Manoni, E, Rossi, A, Batignani, G, Bettarini, S, Carpinelli, M, Casarosa, G, Chrzaszcz, M, Forti, F, Giorgi, M, Lusiani, A, Oberhof, B, Paoloni, E, Rama, M, Rizzo, G, Walsh, J, Zani, L, Smith, A, Anulli, F, Faccini, R, Ferrarotto, F, Ferroni, F, Pilloni, A, Piredda, G, Bunger, C, Dittrich, S, Grunberg, O, Hess, M, Leddig, T, Voss, C, Waldi, R, Adye, T, Wilson, F, Emery, S, Vasseur, G, Aston, D, Cartaro, C, Convery, M, Dorfan, J, Dunwoodie, W, Ebert, M, Field, R, Fulsom, B, Graham, M, Hast, C, Innes, W, Kim, P, Leith, D, Luitz, S, Macfarlane, D, Muller, D, Neal, H, Ratcliff, B, Roodman, A, Sullivan, M, Va'Vra, J, Wisniewski, W, Purohit, M, Wilson, J, Randle-Conde, A, Sekula, S, Ahmed, H, Bellis, M, Burchat, P, Puccio, E, Alam, M, Ernst, J, Gorodeisky, R, Guttman, N, Peimer, D, Soffer, A, Spanier, S, Ritchie, J, Schwitters, R, Izen, J, Lou, X, Bianchi, F, De Mori, F, Filippi, A, Gamba, D, Lanceri, L, Vitale, L, Martinez-Vidal, F, Oyanguren, A, Albert, J, Beaulieu, A, Bernlochner, F, King, G, Kowalewski, R, Lueck, T, Nugent, I, Roney, J, Sobie, R, Tasneem, N, Gershon, T, Harrison, P, Latham, T, Prepost, R, Wu, S, Lees, J. P., Poireau, V., Tisserand, V., Grauges, E., Palano, A., Eigen, G., Brown, D. N., Kolomensky, Yu. G., Fritsch, M., Koch, H., Schroeder, T., Hearty, C., Mattison, T. S., Mckenna, J. A., So, R. Y., Blinov, V. E., Buzykaev, A. R., Druzhinin, V. P., Golubev, V. B., Kozyrev, E. A., Kravchenko, E. A., Onuchin, A. P., Serednyakov, S. I., Skovpen, Y. I., Solodov, E. P., Todyshev, K. Y., Lankford, A. J., Gary, J. W., Long, O., Eisner, A. M., Lockman, W. S., Panduro Vazquez, W., Chao, D. S., Cheng, C. H., Echenard, B., Flood, K. T., Hitlin, D. G., Kim, J., Li, Y., Miyashita, T. S., Ongmongkolkul, P., Porter, F. C., Rohrken, M., Huard, Z., Meadows, B. T., Pushpawela, B. G., Sokoloff, M. D., Sun, L., Smith, J. G., Wagner, S. R., Bernard, D., Verderi, M., Bettoni, D., Bozzi, C., Calabrese, R., Cibinetto, G., Fioravanti, E., Garzia, I., Luppi, E., Santoro, V., Calcaterra, A., De Sangro, R., Finocchiaro, G., Martellotti, S., Patteri, P., Peruzzi, I. M., Piccolo, M., Rotondo, M., Zallo, A., Passaggio, S., Patrignani, C., Lacker, H. M., Bhuyan, B., Mallik, U., Chen, C., Cochran, J., Prell, S., Gritsan, A. V., Arnaud, N., Davier, M., Le Diberder, F., Lutz, A. M., Wormser, G., Lange, D. J., Wright, D. M., Coleman, J. P., Gabathuler, E., Hutchcroft, D. E., Payne, D. J., Touramanis, C., Bevan, A. J., Di Lodovico, F., Sacco, R., Cowan, G., Banerjee, S., Davis, C. L., Denig, A. G., Gradl, W., Griessinger, K., Hafner, A., Schubert, K. R., Barlow, R. J., Lafferty, G. D., Cenci, R., Jawahery, A., Roberts, D. A., Cowan, R., Robertson, S. H., Seddon, R. M., Dey, B., Neri, N., Palombo, F., Cheaib, R., Cremaldi, L., Godang, R., Summers, D. J., Taras, P., De Nardo, G., Sciacca, C., Raven, G., Jessop, C. P., Losecco, J. M., Honscheid, K., Kass, R., Gaz, A., Margoni, M., Posocco, M., Simi, G., Simonetto, F., Stroili, R., Akar, S., Ben-Haim, E., Bomben, M., Bonneaud, G. R., Calderini, G., Chauveau, J., Marchiori, G., Ocariz, J., Biasini, M., Manoni, E., Rossi, A., Batignani, G., Bettarini, S., Carpinelli, M., Casarosa, G., Chrzaszcz, M., Forti, F., Giorgi, M. A., Lusiani, A., Oberhof, B., Paoloni, E., Rama, M., Rizzo, G., Walsh, J. J., Zani, L., Smith, A. J. S., Anulli, F., Faccini, R., Ferrarotto, F., Ferroni, F., Pilloni, A., Piredda, G., Bunger, C., Dittrich, S., Grunberg, O., Hess, M., Leddig, T., Voss, C., Waldi, R., Adye, T., Wilson, F. F., Emery, S., Vasseur, G., Aston, D., Cartaro, C., Convery, M. R., Dorfan, J., Dunwoodie, W., Ebert, M., Field, R. C., Fulsom, B. G., Graham, M. T., Hast, C., Innes, W. R., Kim, P., Leith, D. W. G. S., Luitz, S., Macfarlane, D. B., Muller, D. R., Neal, H., Ratcliff, B. N., Roodman, A., Sullivan, M. K., Va'Vra, J., Wisniewski, W. J., Purohit, M. V., Wilson, J. R., Randle-Conde, A., Sekula, S. J., Ahmed, H., Bellis, M., Burchat, P. R., Puccio, E. M. T., Alam, M. S., Ernst, J. A., Gorodeisky, R., Guttman, N., Peimer, D. R., Soffer, A., Spanier, S. M., Ritchie, J. L., Schwitters, R. F., Izen, J. M., Lou, X. C., Bianchi, F., De Mori, F., Filippi, A., Gamba, D., Lanceri, L., Vitale, L., Martinez-Vidal, F., Oyanguren, A., Albert, J., Beaulieu, A., Bernlochner, F. U., King, G. J., Kowalewski, R., Lueck, T., Nugent, I. M., Roney, J. M., Sobie, R. J., Tasneem, N., Gershon, T. J., Harrison, P. F., Latham, T. E., Prepost, R., Wu, S. L., Laboratoire d'Annecy de Physique des Particules (LAPP), Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Université Savoie Mont Blanc (USMB [Université de Savoie] [Université de Chambéry])-Centre National de la Recherche Scientifique (CNRS), Laboratoire Leprince-Ringuet (LLR), Centre National de la Recherche Scientifique (CNRS)-École polytechnique (X)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3), Laboratoire de l'Accélérateur Linéaire (LAL), Centre National de la Recherche Scientifique (CNRS)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Université Paris-Sud - Paris 11 (UP11), Laboratoire de Physique Nucléaire et de Hautes Énergies (LPNHE (UMR_7585)), Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Université Paris Diderot - Paris 7 (UPD7)-Sorbonne Université (SU)-Centre National de la Recherche Scientifique (CNRS), Département de Physique des Particules (ex SPP) (DPP), Institut de Recherches sur les lois Fondamentales de l'Univers (IRFU), Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Université Paris-Saclay-Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Université Paris-Saclay, BaBar, Lees J.P., Poireau V., Tisserand V., Grauges E., Palano A., Eigen G., Brown D.N., Kolomensky Yu.G., Fritsch M., Koch H., Schroeder T., Hearty C., Mattison T.S., McKenna J.A., So R.Y., Blinov V.E., Buzykaev A.R., Druzhinin V.P., Golubev V.B., Kozyrev E.A., Kravchenko E.A., Onuchin A.P., Serednyakov S.I., Skovpen Y.I., Solodov E.P., Todyshev K.Y., Lankford A.J., Gary J.W., Long O., Eisner A.M., Lockman W.S., Panduro Vazquez W., Chao D.S., Cheng C.H., Echenard B., Flood K.T., Hitlin D.G., Kim J., Li Y., Miyashita T.S., Ongmongkolkul P., Porter F.C., Rohrken M., Huard Z., Meadows B.T., Pushpawela B.G., Sokoloff M.D., Sun L., Smith J.G., Wagner S.R., Bernard D., Verderi M., Bettoni D., Bozzi C., Calabrese R., Cibinetto G., Fioravanti E., Garzia I., Luppi E., Santoro V., Calcaterra A., De Sangro R., Finocchiaro G., Martellotti S., Patteri P., Peruzzi I.M., Piccolo M., Rotondo M., Zallo A., Passaggio S., Patrignani C., Lacker H.M., Bhuyan B., Mallik U., Chen C., Cochran J., Prell S., Gritsan A.V., Arnaud N., Davier M., Le Diberder F., Lutz A.M., Wormser G., Lange D.J., Wright D.M., Coleman J.P., Gabathuler E., Hutchcroft D.E., Payne D.J., Touramanis C., Bevan A.J., Di Lodovico F., Sacco R., Cowan G., Banerjee S., Davis C.L., Denig A.G., Gradl W., Griessinger K., Hafner A., Schubert K.R., Barlow R.J., Lafferty G.D., Cenci R., Jawahery A., Roberts D.A., Cowan R., Robertson S.H., Seddon R.M., Dey B., Neri N., Palombo F., Cheaib R., Cremaldi L., Godang R., Summers D.J., Taras P., De Nardo G., Sciacca C., Raven G., Jessop C.P., Losecco J.M., Honscheid K., Kass R., Gaz A., Margoni M., Posocco M., Simi G., Simonetto F., Stroili R., Akar S., Ben-Haim E., Bomben M., Bonneaud G.R., Calderini G., Chauveau J., Marchiori G., Ocariz J., Biasini M., Manoni E., Rossi A., Batignani G., Bettarini S., Carpinelli M., Casarosa G., Chrzaszcz M., Forti F., Giorgi M.A., Lusiani A., Oberhof B., Paoloni E., Rama M., Rizzo G., Walsh J.J., Zani L., Smith A.J.S., Anulli F., Faccini R., Ferrarotto F., Ferroni F., Pilloni A., Piredda G., Bunger C., Dittrich S., Grunberg O., Hess M., Leddig T., Voss C., Waldi R., Adye T., Wilson F.F., Emery S., Vasseur G., Aston D., Cartaro C., Convery M.R., Dorfan J., Dunwoodie W., Ebert M., Field R.C., Fulsom B.G., Graham M.T., Hast C., Innes W.R., Kim P., Leith D.W.G.S., Luitz S., Macfarlane D.B., Muller D.R., Neal H., Ratcliff B.N., Roodman A., Sullivan M.K., Va'Vra J., Wisniewski W.J., Purohit M.V., Wilson J.R., Randle-Conde A., Sekula S.J., Ahmed H., Bellis M., Burchat P.R., Puccio E.M.T., Alam M.S., Ernst J.A., Gorodeisky R., Guttman N., Peimer D.R., Soffer A., Spanier S.M., Ritchie J.L., Schwitters R.F., Izen J.M., Lou X.C., Bianchi F., De Mori F., Filippi A., Gamba D., Lanceri L., Vitale L., Martinez-Vidal F., Oyanguren A., Albert J., Beaulieu A., Bernlochner F.U., King G.J., Kowalewski R., Lueck T., Nugent I.M., Roney J.M., Sobie R.J., Tasneem N., Gershon T.J., Harrison P.F., Latham T.E., Prepost R., Wu S.L., Laboratoire d'Annecy de Physique des Particules (LAPP/Laboratoire d'Annecy-le-Vieux de Physique des Particules), Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-École polytechnique (X)-Centre National de la Recherche Scientifique (CNRS), Université Paris-Sud - Paris 11 (UP11)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Centre National de la Recherche Scientifique (CNRS), Centre National de la Recherche Scientifique (CNRS)-Université Savoie Mont Blanc (USMB [Université de Savoie] [Université de Chambéry])-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3), Skovpen, Yu. I., Todyshev, K. Yu., Röhrken, M., de Sangro, R., Banerjee, Sw., Bünger, C., Grünberg, O., Heß, M., Voß, C., Va’Vra, J., Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Sorbonne Université (SU)-Centre National de la Recherche Scientifique (CNRS), Département de Physique des Particules (ex SPP) (DPhP), Massachusetts Institute of Technology. Laboratory for Nuclear Science, and Cowan, Ray F

Subjects
Kjerne- og elementærpartikkelfysikk: 431 [VDP], branching ratio: upper limit, Electron–positron annihilation, Bound state, General Physics and Astronomy, BaBar experiment, Quarks, Upsilon(10355): rare decay, Upsilon(10355): electroproduction, Upsilon(10020): branching ratio, particle: exotic, upsilon mesons: hadronic decay, 01 natural sciences, decay, High Energy Physics - Experiment, High Energy Physics - Experiment (hep-ex), Upsilon(10020): electroproduction, [PHYS.HEXP]Physics [physics]/High Energy Physics - Experiment [hep-ex], Physic, QC, QB, Exotic particles, Physics, new physics: search for, Settore FIS/01 - Fisica Sperimentale, electron positron: colliding beams, detector, limits, decay, Nuclear and elementary particle physics: 431 [VDP], Particles, Dark matter (Astronomy), Confidence level, baryon: dark matter, Upsilon(10020): rare decay, Branching fraction, Matèria fosca (Astronomia), Quark, Particle physics, Dark matter, FOS: Physical sciences, Lambda: pair production, electron positron: annihilation, Partícules (Matèria), NO, Physics and Astronomy (all), BABAR experiment, 0103 physical sciences, Atomic physic, Upsilon(10355): branching ratio, 010306 general physics, detector, dark matter: mass, State (functional analysis), stability, SLAC PEP Stor, HEP, A-stable, BaBar, Elementary Particles and Fields, High Energy Physics::Experiment, limits, experimental results
Abstract

Recent investigations have suggested that the six-quark combination uuddss could be a deeply bound state (S) that has eluded detection so far, and a potential dark matter candidate. We report the first search for a stable, doubly strange six-quark state in Upsilon -> S anti-Lambda anti-Lambda decays based on a sample of 90 million Upsilon(2S) and 110 million Upsilon(3S) decays collected by the BABAR experiment. No signal is observed, and 90% confidence level limits on the combined Upsilon(2S,3S) -> S anti-Lambda anti-Lambda branching fraction in the range (1.2-1.4)x10^-7 are derived for m_S < 2.05 GeV. These bounds set stringent limits on the existence of such exotic particles., 7 pages, 4 figures, published version

Published
2019
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29. Study of the reactions e+e−→π+π−π0π0π0 and π+π−π0π0η at center-of-mass energies from threshold to 4.35 GeV using initial-state radiation

Author

J. P. Lees, V. Poireau, V. Tisserand, E. Grauges, A. Palano, G. Eigen, D. N. Brown, Yu. G. Kolomensky, M. Fritsch, H. Koch, T. Schroeder, R. Cheaib, C. Hearty, T. S. Mattison, J. A. McKenna, R. Y. So, V. E. Blinov, A. R. Buzykaev, V. P. Druzhinin, V. B. Golubev, E. A. Kozyrev, E. A. Kravchenko, A. P. Onuchin, S. I. Serednyakov, Yu. I. Skovpen, E. P. Solodov, K. Yu. Todyshev, A. J. Lankford, B. Dey, J. W. Gary, O. Long, A. M. Eisner, W. S. Lockman, W. Panduro Vazquez, D. S. Chao, C. H. Cheng, B. Echenard, K. T. Flood, D. G. Hitlin, J. Kim, Y. Li, D. X. Lin, S. Middleton, T. S. Miyashita, P. Ongmongkolkul, J. Oyang, F. C. Porter, M. Röhrken, Z. Huard, B. T. Meadows, B. G. Pushpawela, M. D. Sokoloff, L. Sun, J. G. Smith, S. R. Wagner, D. Bernard, M. Verderi, D. Bettoni, C. Bozzi, R. Calabrese, G. Cibinetto, E. Fioravanti, I. Garzia, E. Luppi, V. Santoro, A. Calcaterra, R. de Sangro, G. Finocchiaro, S. Martellotti, P. Patteri, I. M. Peruzzi, M. Piccolo, M. Rotondo, A. Zallo, S. Passaggio, C. Patrignani, B. J. Shuve, H. M. Lacker, B. Bhuyan, U. Mallik, C. Chen, J. Cochran, S. Prell, A. V. Gritsan, N. Arnaud, M. Davier, F. Le Diberder, A. M. Lutz, G. Wormser, D. J. Lange, D. M. Wright, J. P. Coleman, E. Gabathuler, D. E. Hutchcroft, D. J. Payne, C. Touramanis, A. J. Bevan, F. Di Lodovico, R. Sacco, G. Cowan, Sw. Banerjee, C. L. Davis, A. G. Denig, W. Gradl, K. Griessinger, A. Hafner, K. R. Schubert, R. J. Barlow, G. D. Lafferty, R. Cenci, A. Jawahery, D. A. Roberts, R. Cowan, S. H. Robertson, R. M. Seddon, N. Neri, F. Palombo, L. Cremaldi, R. Godang, D. J. Summers, P. Taras, G. De Nardo, C. Sciacca, G. Raven, C. P. Jessop, J. M. LoSecco, K. Honscheid, R. Kass, A. Gaz, M. Margoni, M. Posocco, G. Simi, F. Simonetto, R. Stroili, S. Akar, E. Ben-Haim, M. Bomben, G. R. Bonneaud, G. Calderini, J. Chauveau, G. Marchiori, J. Ocariz, M. Biasini, E. Manoni, A. Rossi, G. Batignani, S. Bettarini, M. Carpinelli, G. Casarosa, M. Chrzaszcz, F. Forti, M. A. Giorgi, A. Lusiani, B. Oberhof, E. Paoloni, M. Rama, G. Rizzo, J. J. Walsh, L. Zani, A. J. S. Smith, F. Anulli, R. Faccini, F. Ferrarotto, F. Ferroni, A. Pilloni, G. Piredda, C. Bünger, S. Dittrich, O. Grünberg, M. Heß, T. Leddig, C. Voß, R. Waldi, T. Adye, F. F. Wilson, S. Emery, G. Vasseur, D. Aston, C. Cartaro, M. R. Convery, J. Dorfan, 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, S. Luitz, D. B. MacFarlane, D. R. Muller, H. Neal, B. N. Ratcliff, A. Roodman, M. K. Sullivan, J. Va’vra, W. J. Wisniewski, M. V. Purohit, J. R. Wilson, A. Randle-Conde, S. J. Sekula, H. Ahmed, N. Tasneem, 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, J. M. Izen, X. C. Lou, F. Bianchi, F. De Mori, A. Filippi, D. Gamba, L. Lanceri, L. Vitale, F. Martinez-Vidal, A. Oyanguren, J. Albert, A. Beaulieu, F. U. Bernlochner, G. J. King, R. Kowalewski, T. Lueck, C. Miller, I. M. Nugent, J. M. Roney, R. J. Sobie, T. J. Gershon, P. F. Harrison, T. E. Latham, R. Prepost, and S. L. Wu

Subjects
Physics, Particle physics, 010308 nuclear & particles physics, Branching fraction, Electron–positron annihilation, Hadron, 7. Clean energy, 01 natural sciences, Omega, 0103 physical sciences, Mass spectrum, Pi, Intermediate state, Invariant mass, 010306 general physics
Abstract

We study the processes $e^+e^-\to 2(\pi^+\pi^-)\pi^0\pi^0\pi^0\gamma$ and $2(\pi^+\pi^-)\pi^0\pi^0\eta\gamma$ in which an energetic photon is radiated from the initial state. The data were collected with the \babar~ detector at SLAC. About 14\,000 and 4700 events, respectively, are selected from a data sample corresponding to an integrated luminosity of 469 fb^{-1}. The invariant mass of the hadronic final state defines the effective \epem center-of-mass energy. The center-of-mass energies range from threshold to 4.5 GeV. From the mass spectra, the first ever measurements of the $e^+e^-\to 2(\pi^+\pi^-)\pi^0\pi^0\pi^0$ and the $e^+e^-\to2(\pi^+\pi^-)\pi^0\pi^0\eta$ cross sections are performed. The contributions from $\omega\pi^+\pi^-\pi^0\pi^0$, $\eta2(\pi^+\pi^-)$, and other intermediate states are presented. We observe the $J/\psi$ and $\psi(2S)$ in most of these final states and measure the corresponding branching fractions, many of them for the first time.

Published
2018
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30. First Evidence for cos2β>0 and Resolution of the Cabibbo-Kobayashi-Maskawa Quark-Mixing Unitarity Triangle Ambiguity

Author

V. B. Golubev, K. Chilikin, L. Zani, J. R. Wilson, Iki Adachi, T. S. Miyashita, Doo Young Kim, A. Palano, S. Emery, M. Feindt, J. B. Kim, K. Griessinger, D. Epifanov, A. Hafner, W. R. Innes, David Hutchcroft, O. Long, R. Cenci, Brian Meadows, J. M. Izen, M. Bellis, Eleonora Guido, H. Neal, K. Inami, H. Ye, R. Kass, S. Martellotti, D. W G S Leith, G. Schnell, E. Won, R. Pestotnik, S. Nishida, A. Calcaterra, J. P. Coleman, J. A. McKenna, T. E. Browder, J. Ocariz, M. T. Graham, F. Ferroni, R. J. Sobie, A. Roodman, S. Pardi, J. L. Ritchie, Noritaka Shimizu, Vikas Bansal, Eleonora Luppi, A. Beaulieu, Tara Nanut, T. Uglov, A. V. Gritsan, G. Wormser, A. G. Denig, Vitaly Vorobyev, B. N. Ratcliff, R. Y. So, T. Kuhr, S. R. Wagner, G. De Nardo, H. M. Lacker, M. Starič, D. Liventsev, E. Nakano, Z. Drásal, V. Savinov, D. J. Summers, C. H. Cheng, H. Ono, D. A. Roberts, S. Al Said, T. Matsuda, A. J S Smith, D. S. Chao, Vladimir Zhulanov, R. Kroeger, E. Ben-Haim, M. E. Sevior, I. S. Lee, S. J. Sekula, C. Bozzi, R. Mizuk, M. Piccolo, F. Di Lodovico, S. Uno, R. Kulasiri, T. Schroeder, A. J. Lankford, S. Sandilya, R. Godang, P. Goldenzweig, P. Pakhlov, N. Tasneem, J. Albert, G.V. Russo, J. Cochran, Yu. G. Kolomensky, H. Hayashii, J. Libby, C. Van Hulse, T. A. Shibata, Z. C. Huard, U. Tamponi, S. Passaggio, H. Miyata, B. Pal, Y. B. Li, Marcin Chrzaszcz, F. Le Diberder, Michael Sokoloff, Ray Franklin Cowan, P. C. Kim, F. U. Bernlochner, P. Patteri, Prafulla Kumar Behera, W. S. Hou, I. M. Peruzzi, B. Oberhof, F. Simonetto, J. G. Shiu, G. J. King, V. Babu, K. T. Kim, J. K. Ahn, A. Soffer, M. Z. Wang, K. Kinoshita, B. Bhuyan, N. Guttman, H. Park, A. Bozek, S. H. Kim, J. Dorfan, M. Gelb, H. Koch, Vladimir Popov, A. Zallo, S. Jia, D. N. Brown, R. Stroili, R. Ayad, K. Cho, C. Hearty, M. Iwasaki, P. K. Resmi, Marcello Rotondo, B. G. Cheon, James E. Fast, A. Kuzmin, M. Ebert, T. K. Pedlar, T. Kumita, K. Yu. Todyshevx, F. Forti, Y. Choi, K. J. Nath, E. A. Kravchenko, L. Santelj, K. H. Kang, T. Leddig, Shih-Chang Lee, D. Matvienko, C. Voß, M. Bomben, J. Haba, Dominik Müller, X. C. Lou, C. Chen, G. Finocchiaro, C. Z. Yuan, Y. Jin, A. J. Schwartz, C. H. Wang, Alberto Lusiani, Semen Eidelman, E. Grauges, L. Vitale, S. Ogawa, A. Rossi, Y. Watanabe, J. P. Lees, A. Filippi, S. E. Vahsen, G. A. Cowan, C. Bünger, C. Sciacca, R. C. Field, Gabriele Simi, G. Eigen, R. Gorodeisky, F. Martinez-Vidal, J. J. Walsh, C. Schwanda, R. Itoh, H. Ahmed, D. Cinabro, Tao Luo, F. Tenchini, Th. Müller, G. Rizzo, Y. Sakai, D. Bernard, J. Chauveau, S. I. Serednyakov, F. Palombo, S. Korpar, E. Gabathuler, T. Ferber, Tagir Aushev, C. Cartaro, Y. Onuki, A. Jawahery, M. Nayak, G. Cibinetto, M. K. Sullivan, M. Margoni, Y. Guan, A. Oyanguren, E. Waheed, R. M. Seddon, Nicola Neri, J. W. Gary, V. Gaur, W. Panduro Vazquez, Y. Iwasaki, C. Touramanis, S. Luitz, K. R. Schubert, P. Taras, S. Hirose, D. J. Payne, E. Fioravanti, Y. Li, Y. J. Kwon, V.N. Zhilich, F. Ferrarotto, E. M. T. Puccio, G. B. Mohanty, P. L. Wang, B. Golob, T. Lueck, Roland Waldi, Biplab Dey, Peter Kodys, Fergus Wilson, M. A. Giorgi, E. Paoloni, A. Zupanc, F. De Mori, A. B. Kaliyar, P. F. Harrison, H. Kichimi, D. G. Hitlin, H. K. Moon, M. R. Convery, A. Chen, F. Bianchi, G. Piredda, O. Schneider, U. Mallik, R. Cheaib, Y. Yusa, Bingran Wang, M. Röhrken, K. Senyo, J. S. Lange, V. Santoro, W. J. Wisniewski, C. Hast, W. W. Jacobs, A. M. Eisner, I. M. Nugent, M. T. Hedges, M. Carpinelli, K. Miyabayashi, I. Badhrees, M. Posocco, B. G. Fulsom, R. F. Schwitters, G. Varner, R. Mussa, A. M. Lutz, K. T. Flood, G. Casarosa, Simon Akar, M. Takizawa, Pavel Krokovny, R. Calabrese, V. E. Blinov, A. R. Buzykaev, A. Ishikawa, G. Vasseur, Roger Barlow, Ju-Young Kim, Miriam Heß, Y. Seino, S. Bettarini, R. de Sangro, M. Nakao, M. Biasini, P. Križan, G. Raven, Alexander Bondar, D. Gamba, R. Sacco, L. Cremaldi, Yu. I. Skovpen, C. P. Shen, K. Honscheid, G. Calderini, Elisa Manoni, R. Kowalewski, N. Arnaud, V.E. Shebalin, M. Heck, L. K. Li, M. V. Purohit, S. Di Carlo, D. M. Asner, K. Hayasaka, Sw. Banerjee, Soumen Paul, M. Uchida, G. Pakhlova, P. R. Burchat, G. Karyan, V. Bhardwaj, C. L. Hsu, J. A. Ernst, S. L. Wu, P. Ongmongkolkul, H. Atmacan, D. B. Macfarlane, Alessandro Pilloni, K. K. Joo, S. Dittrich, D. R. Peimer, Kiyoshi Tanida, Timothy Gershon, D. Aston, L. Li Gioi, A. Garmash, F. Anulli, Z. Doležal, J. M. Roney, Yoshinobu Unno, S. Zakharov, M. Lubej, G. Inguglia, V. Zhukova, M. Merola, A. K. Giri, K. Sumisawa, S. M. Spanier, G. Batignani, M. Masuda, C. L. Davis, M. Fritsch, A. P. Onuchin, L. Sun, Adrian John Bevan, Somnath Choudhury, Leo Piilonen, O. Seon, Frank Simon, D. J. Lange, Matteo Rama, James G. Smith, V. P. Druzhinin, D. M. Wright, M. S. Alam, E. Solovieva, R. Prepost, N. Dash, M. Rozanska, D. Kotchetkov, T. Adye, A. Randle-Conde, T. Julius, M. Verderi, R. Faccini, V. Poireau, T. Sumiyoshi, J. M. Losecco, G. Marchiori, F. C. Porter, Martin Ritter, T. Sanuki, S. Cunliffe, J. Va'Vra, W. S. Lockman, M. Salehi, H. Aihara, George Lafferty, C. P. Jessop, T. Hara, T. Mori, Oliver Grünberg, G. R. Bonneaud, N. K. Nisar, I. Pavelkin, D. Bettoni, Z. P. Zhang, S. Prell, B. G. Pushpawela, A. Gaz, S. H. Robertson, L. Lanceri, Jyoti Prakash Biswal, B. Echenard, M. Davier, J. MacNaughton, A. M. Bakich, W. Dunwoodie, D. Červenkov, Rocky Bala Garg, T. S. Mattison, W. Gradl, E. P. Solodov, I. Garzia, Thomas Latham, C. Patrignani, V. Tisserand, and M. Bračko

Subjects
Quark, Physics, Particle physics, Unitarity, 010308 nuclear & particles physics, Electron–positron annihilation, Hadron, General Physics and Astronomy, Dalitz plot, 01 natural sciences, B-factory, KEKB, 0103 physical sciences, CP violation, 010306 general physics
Abstract

We present first evidence that the cosine of the CP-violating weak phase 2β is positive, and hence exclude trigonometric multifold solutions of the Cabibbo-Kobayashi-Maskawa (CKM) Unitarity Triangle using a time-dependent Dalitz plot analysis of B^{0}→D^{(*)}h^{0} with D→K_{S}^{0}π^{+}π^{-} decays, where h^{0}∈{π^{0},η,ω} denotes a light unflavored and neutral hadron. The measurement is performed combining the final data sets of the BABAR and Belle experiments collected at the ϒ(4S) resonance at the asymmetric-energy B factories PEP-II at SLAC and KEKB at KEK, respectively. The data samples contain (471±3)×10^{6}BB[over ¯] pairs recorded by the BABAR detector and (772±11)×10^{6}BB[over ¯] pairs recorded by the Belle detector. The results of the measurement are sin2β=0.80±0.14(stat)±0.06(syst)±0.03(model) and cos2β=0.91±0.22(stat)±0.09(syst)±0.07(model). The result for the direct measurement of the angle β of the CKM Unitarity Triangle is β=[22.5±4.4(stat)±1.2(syst)±0.6(model)]°. The measurement assumes no direct CP violation in B^{0}→D^{(*)}h^{0} decays. The quoted model uncertainties are due to the composition of the D^{0}→K_{S}^{0}π^{+}π^{-} decay amplitude model, which is newly established by performing a Dalitz plot amplitude analysis using a high-statistics e^{+}e^{-}→cc[over ¯] data sample. CP violation is observed in B^{0}→D^{(*)}h^{0} decays at the level of 5.1 standard deviations. The significance for cos2β>0 is 3.7 standard deviations. The trigonometric multifold solution π/2-β=(68.1±0.7)° is excluded at the level of 7.3 standard deviations. The measurement resolves an ambiguity in the determination of the apex of the CKM Unitarity Triangle.

Published
2018
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31. Measurement of cos2β in B0→D(*)h0 with D→KS0π+π− decays by a combined time-dependent Dalitz plot analysis of BaBar and Belle data

Author

C. Bünger, T. Matsuda, J. W. Gary, T. S. Mattison, S. H. Kim, S. J. Sekula, A. Jawahery, P. Krokovny, M. Feindt, I. Adachi, D. B. MacFarlane, C. Hearty, P. Goldenzweig, K. H. Kang, K. Cho, S. Sandilya, A. G. Denig, R. F. Schwitters, M. Rozanska, D. Kotchetkov, E. Fioravanti, B. Golob, F. Palombo, T. Lueck, P. Pakhlov, J. B. Kim, K. Yu. Todyshevx, T. Leddig, D. Epifanov, N. K. Nisar, J. S. Lange, Z. C. Huard, V.N. Zhilich, Shih-Chang Lee, W. S. Lockman, M. R. Convery, D. N. Brown, A. Calcaterra, M. Z. Wang, K. Kinoshita, D. J. Summers, A. Filippi, H. Park, A. Bozek, Simon Akar, R. Prepost, R. Mussa, D. Gamba, M. Bellis, A. Ishikawa, F. De Mori, J. E. Fast, Cheng Chen, M. Starič, N. Tasneem, G.V. Russo, J. P. Coleman, F. Anulli, Alessandro Gaz, S. H. Robertson, Aidan Randle-Conde, W. S. Hou, G. J. King, Victoria Zhukova, F. F. Wilson, R. J. Sobie, L. Vitale, B. T. Meadows, P. Križan, G. Raven, Denis Bernard, S. Nishida, K. Miyabayashi, I. Badhrees, R. Ayad, James R. Wilson, V. Bhardwaj, R. Cowan, E. A. Kravchenko, Elisa Guido, J. L. Ritchie, Herbert Koch, T. K. Pedlar, A. P. Onuchin, A. Chen, S. Martellotti, F. Martinez-Vidal, Marco Bomben, M. D. Sokoloff, S. E. Vahsen, A. J. S. Smith, P. R. Burchat, R. Calabrese, C. Cartaro, M. Rotondo, V. Vorobyev, U. Mallik, I. Pavelkin, G. Schnell, D. Cinabro, K. Griessinger, M. Iwasaki, D. Matvienko, P. F. Harrison, G. Cibinetto, A. Oyanguren, E. Luppi, S. Emery, M. Merola, Peter S. Kim, T. S. Miyashita, N. Neri, G. Vasseur, E. Paoloni, D. Y. Kim, B. K. Pal, B. G. Cheon, K. T. Kim, L. M. Cremaldi, R. B. Garg, B. Bhuyan, A. V. Gritsan, Shigeki Hirose, K. T. Flood, A. M. Eisner, Y. Iwasaki, R. Godang, Tao Luo, K. Tanida, F. Di Lodovico, B. G. Fulsom, G. De Nardo, J. Chauveau, M. T. Hedges, A. B. Kaliyar, J. K. Ahn, Y. J. Kwon, G. Eigen, I. M. Nugent, V. E. Blinov, S. Bettarini, T. E. Browder, D. J. Payne, M. Ebert, A. J. Bevan, M. Röhrken, K. Chilikin, H. M. Lacker, Tara Nanut, T. Kuhr, T. A. Shibata, H. Miyata, T. Aushev, R. Sacco, A. J. Schwartz, E. Grauges, V. V. Zhulanov, G. Inguglia, O. Schneider, T. Uglov, V. Savinov, A. Palano, C. P. Jessop, S. M. Spanier, Alessandro Pilloni, J. Ocariz, R. Mizuk, Mario Giorgi, M. Heß, H. Kichimi, E. Won, M. K. Sullivan, Yu. G. Kolomensky, D. W. G. S. Leith, H. Atmacan, J. P. Lees, D. R. Peimer, H. Ono, D. G. Hitlin, Bingran Wang, S. Zakharov, Semen Eidelman, David Hutchcroft, L. Li Gioi, A. Zupanc, Wu S. L., K. Hayasaka, G. Calderini, E. Nakano, F. Simonetto, J. Va’vra, D. S. Chao, M. Davier, R. Cenci, R. Cheaib, R. Waldi, A. Zallo, S. Korpar, V. P. Druzhinin, C. Bozzi, G. Cowan, Noritaka Shimizu, J. M. LoSecco, M. V. Purohit, Douglas Wright, L. Zani, R. Gorodeisky, P. Patteri, M. Fritsch, D. A. Roberts, Yu. I. Skovpen, B. Dey, P. Ongmongkolkul, K. Honscheid, M. Piccolo, F. Forti, J. J. Walsh, R. Kroeger, M. E. Sevior, I. S. Lee, A. M. Lutz, R. J. Barlow, R. Stroili, M. T. Graham, A. Hafner, J. M. Roney, Z. Drásal, J. Albert, K. Senyo, E. M. T. Puccio, X. C. Lou, G. Batignani, V.E. Shebalin, Somnath Choudhury, N. Guttman, A. Kuzmin, J. G. Shiu, G. Wormser, K. K. Joo, Y. Unno, M. Posocco, J. G. Smith, S. Al Said, K. Inami, C. Z. Yuan, J. Cochran, E. Ben-Haim, C. Hast, M. Heck, D. J. Lange, G. Piredda, Hamad Ahmed, W. J. Wisniewski, G. Marchiori, S. Ogawa, G. D. Lafferty, Y. B. Li, H. A. Neal, V. Santoro, J. Libby, M. Lubej, W. Dunwoodie, A. M. Rossi, S. Passaggio, W. Panduro Vazquez, S. Uno, C. Schwanda, Tim Adye, V. B. Golubev, U. Tamponi, Y. Choi, K. J. Nath, G. Casarosa, L. Santelj, E. Waheed, R. D. Kass, A. Roodman, R. Faccini, F. Ferrarotto, A. J. Lankford, F. Le Diberder, S. Jia, R. M. Seddon, J. M. Izen, Crisostomo Sciacca, D. Aston, M. Nayak, M. Uchida, F. Ferroni, A. R. Buzykaev, G. Rizzo, M. Rama, L. Lanceri, So R. Y., A. Beaulieu, Y. Seino, J. A. McKenna, C. H. Cheng, T. J. Gershon, D. Liventsev, Y. Jin, C. H. Wang, S. Paul, Martino Margoni, S. Pardi, T. Müller, K. Sumisawa, D. M. Asner, T. E. Latham, M. Carpinelli, Ju-Young Kim, Maurizio Biasini, D. R. Muller, G. S. Varner, R. de Sangro, Stephen Robert Wagner, Y. Yusa, K. R. Schubert, A. K. Giri, Tamara Vazquez Schroeder, R. Itoh, C. L. Davis, Elisa Manoni, Li L. K., I. M. Peruzzi, Owen Rosser Long, M. Masuda, C. B. Van Hulse, G. B. Mohanty, J. A. Ernst, S. I. Serednyakov, F. Bianchi, L. Sun, S. Dittrich, P. K. Resmi, M. Gelb, Pu Wang, R. Kowalewski, Peter Kodys, A. Garmash, W. W. Jacobs, V. Bansal, G. R. Bonneaud, J. Dorfan, S. Di Carlo, G. Karyan, P. K. Behera, M. Verderi, N. Arnaud, A.E. Bondar, M. Takizawa, C. Touramanis, Z. Doležal, O. Grünberg, P. Taras, E. P. Solodov, O. Seon, Frank Simon, Y. Sakai, S. Prell, I. Garzia, V. Poireau, A. Soffer, A. Lusiani, N. Dash, E. Solovieva, Li Y. B., R. C. Field, G. Finocchiaro, M. S. Alam, S. Cunliffe, B. Oberhof, L. E. Piilonen, G. Pakhlova, R. Kulasiri, T. Hara, T. Julius, W. Gradl, T. Mori, H. Aihara, B. N. Ratcliff, S. Luitz, F. Tenchini, T. Sumiyoshi, Martin Ritter, Z. P. Zhang, T. Sanuki, B. G. Pushpawela, Jyoti Prakash Biswal, D. Bettoni, V. Gaur, M. Nakao, B. Echenard, Florian Urs Bernlochner, J. MacNaughton, C. Patrignani, V. Tisserand, M. Bračko, A. M. Bakich, Sw. Banerjee, G. Simi, D. Červenkov, E. Gabathuler, W. R. Innes, F. C. Porter, M. Chrzaszcz, and C. Voß

Subjects
Physics, Particle physics, Unitarity, Meson, 010308 nuclear & particles physics, Electron–positron annihilation, Hadron, Dalitz plot, 01 natural sciences, B-factory, KEKB, 0103 physical sciences, CP violation, 010306 general physics
Abstract

We report measurements of sin2β and cos2β using a time-dependent Dalitz plot analysis of B0→D(*)h0 with D→KS0π+π- decays, where the light unflavored and neutral hadron h0 is a π0, η, or ω meson. The analysis uses a combination of the final data sets of the BaBar and Belle experiments containing 471×106 and 772×106 BB¯ pairs collected at the ϒ(4S) resonance at the asymmetric-energy B factories PEP-II at SLAC and KEKB at KEK, respectively. We measure sin2β=0.80±0.14(stat)±0.06(syst)±0.03(model) and cos2β=0.91±0.22(stat)±0.09(syst)±0.07(model). The result for the direct measurement of the angle is β=(22.5±4.4(stat)±1.2(syst)±0.6(model))°. The last quoted uncertainties are due to the composition of the D0→KS0π+π- decay amplitude model, which is newly established by a Dalitz plot amplitude analysis of a high-statistics e+e-→cc¯ data sample as part of this analysis. We find the first evidence for cos2β>0 at the level of 3.7 standard deviations. The measurement excludes the trigonometric multifold solution π/2-β=(68.1±0.7)° at the level of 7.3 standard deviations and therefore resolves an ambiguity in the determination of the apex of the CKM Unitarity Triangle. The hypothesis of β=0° is ruled out at the level of 5.1 standard deviations, and thus CP violation is observed in B0→D(*)h0 decays. The measurement assumes no direct CP violation in B0→D(*)h0 decays.

Published
2018
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32. Measurement of the γ*γ*→η′ transition form factor

Author

A. J S Smith, A. Randle-Conde, R. F. Schwitters, R. Cenci, R. de Sangro, M. K. Sullivan, Z. C. Huard, Gabriele Simi, J. R. Wilson, T. S. Miyashita, F. Le Diberder, C. H. Cheng, K. Yu Todyshev, V. E. Blinov, Marcin Chrzaszcz, M. Verderi, Eleonora Luppi, Yu. I. Skovpen, G. J. King, M. A. Giorgi, S. Passaggio, R. Faccini, J. M. Izen, Simon Akar, M. Bellis, T. Leddig, K. Honscheid, F. Forti, A. R. Buzykaev, C. Cartaro, D. J. Summers, A. M. Lutz, M. V. Purohit, F. Bianchi, J. W. Gary, P. Taras, A. Calcaterra, I. M. Nugent, R. Kowalewski, J. Dorfan, D. Gamba, D. J. Payne, X. C. Lou, N. Arnaud, J. P. Coleman, G. Eigen, M. Margoni, A. Soffer, R. Godang, E. Paoloni, M. Heß, D. S. Chao, G. Wormser, G. Batignani, M. R. Convery, D. B. Macfarlane, L. Lanceri, R. J. Sobie, A. Roodman, D. J. Lange, Alessandro Pilloni, D. R. Peimer, T. Schroeder, A. J. Lankford, D. Aston, W. Panduro Vazquez, Wu S. L., R. M. Seddon, E. P. Solodov, J. Chauveau, M. Posocco, S. Bettarini, R. Prepost, Y. B. Li, G. Piredda, F. Anulli, U. Mallik, M. Carpinelli, J. Va'Vra, E. Fioravanti, W. S. Lockman, Roland Waldi, So R. Y., L. Vitale, K. T. Flood, Ray Franklin Cowan, C. Chen, G. Raven, L. Zani, G. Vasseur, M. Piccolo, P. C. Kim, F. U. Bernlochner, T. Adye, J. M. Roney, S. M. Spanier, C. L. Davis, B. Echenard, M. Fritsch, K. Griessinger, G. Calderini, Alberto Lusiani, J. Ocariz, G. Casarosa, C. Hearty, Marcello Rotondo, S. Emery, M. T. Graham, B. Bhuyan, F. Simonetto, Timothy Gershon, R. Cheaib, Ju-Young Kim, M. Davier, A. Oyanguren, M. Bomben, Dominik Müller, F. Ferroni, Biplab Dey, W. J. Wisniewski, D. A. Roberts, F. Di Lodovico, Brian Meadows, E. Grauges, F. Martinez-Vidal, J. J. Walsh, Matteo Rama, A. V. Gritsan, D. Bernard, Fergus Wilson, A. G. Denig, B. N. Ratcliff, I. Garzia, James G. Smith, C. Sciacca, R. C. Field, H. Ahmed, C. Touramanis, D. N. Brown, S. Luitz, K. R. Schubert, S. I. Serednyakov, F. Palombo, V. Poireau, Thomas Latham, C. Patrignani, V. Tisserand, J. L. Ritchie, R. Calabrese, Nicola Neri, M. Biasini, T. Lueck, F. De Mori, J. M. Losecco, G. Marchiori, D. G. Hitlin, Elisa Manoni, F. C. Porter, Michael Sokoloff, J. Cochran, C. Bozzi, R. Gorodeisky, C. Hast, P. R. Burchat, G. A. Cowan, A. P. Onuchin, L. Sun, Sw. Banerjee, Yu. G. Kolomensky, P. Ongmongkolkul, E. Ben-Haim, J. A. Ernst, N. Tasneem, J. Albert, T. S. Mattison, N. Guttman, B. G. Fulsom, W. Gradl, Adrian John Bevan, F. Ferrarotto, E. M. T. Puccio, S. Dittrich, I. M. Peruzzi, M. Ebert, R. Stroili, A. Rossi, O. Long, C. Bünger, S. Martellotti, V. P. Druzhinin, D. M. Wright, G. De Nardo, H. M. Lacker, A. Jawahery, S. J. Sekula, G. Cibinetto, P. Patteri, W. Dunwoodie, M. S. Alam, H. Koch, E. A. Kozyrev, G. Finocchiaro, H. Neal, R. Kass, D. W G S Leith, A. Beaulieu, D. Bettoni, S. Prell, V. B. Golubev, B. G. Pushpawela, M. Röhrken, A. Gaz, R. Sacco, B. Oberhof, S. H. Robertson, A. Palano, E. A. Kravchenko, George Lafferty, C. P. Jessop, A. Filippi, G. Rizzo, A. Hafner, W. R. Innes, David Hutchcroft, Oliver Grünberg, G. R. Bonneaud, A. Zallo, C. Voß, J. A. McKenna, S. R. Wagner, E. Gabathuler, P. F. Harrison, A. M. Eisner, Roger Barlow, J. P. Lees, V. Santoro, and L. Cremaldi

Subjects
Physics, Range (particle radiation), 010308 nuclear & particles physics, Electron–positron annihilation, Form factor (quantum field theory), 01 natural sciences, 7. Clean energy, Measure (mathematics), law.invention, Luminosity, Nuclear physics, law, 0103 physical sciences, 010306 general physics, Collider
Abstract

We study the process e^+e^− → e^+e^−η′ in the double-tag mode and measure for the first time the γ⋆γ⋆ → η′ transition form factor F_η′(Q^2_1,Q^2_2) in the momentum-transfer range 2 < Q^2_1, Q^2_2 < 60 GeV^2. The analysis is based on a data sample corresponding to an integrated luminosity of around 469 fb^(-1) collected at the PEP-II e^+e^− collider with the BABAR detector at center-of-mass energies near 10.6 GeV.

Published
2018
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33. Measurement of the spectral function for the τ−→K−KSντ decay

Author

G. J. King, D. B. Macfarlane, B. Bhuyan, J. Dorfan, Z. C. Huard, J. M. Izen, E. Grauges, M. Bellis, F. Martinez-Vidal, J. J. Walsh, V. B. Golubev, M. Röhrken, George Lafferty, C. P. Jessop, V. E. Blinov, Matteo Rama, A. V. Gritsan, A. Palano, James G. Smith, H. Neal, R. Kass, P. Ongmongkolkul, A. Hafner, W. R. Innes, David Hutchcroft, D. W G S Leith, D. Gamba, A. Beaulieu, J. Va'Vra, Oliver Grünberg, G. R. Bonneaud, W. S. Lockman, L. Lanceri, J. A. McKenna, S. R. Wagner, A. Calcaterra, B. Echenard, C. H. Cheng, R. M. Seddon, E. Fioravanti, A. G. Denig, B. N. Ratcliff, C. Bünger, M. Davier, V. P. Druzhinin, Ray Franklin Cowan, S. M. Spanier, A. Oyanguren, K. Griessinger, C. L. Davis, R. F. Schwitters, A. J S Smith, P. C. Kim, M. Posocco, K. T. Flood, R. Cheaib, A. Jawahery, N. Guttman, R. Stroili, M. Fritsch, F. U. Bernlochner, G. Cibinetto, J. Ocariz, M. T. Graham, D. M. Wright, M. S. Alam, Brian Meadows, Roland Waldi, So R. Y., F. De Mori, J. P. Lees, E. A. Kozyrev, W. J. Wisniewski, F. Ferroni, R. Gorodeisky, G. Vasseur, G. Wormser, F. Le Diberder, K. Yu Todyshev, B. G. Fulsom, C. Bozzi, Gabriele Simi, J. P. Coleman, R. Cenci, Ju-Young Kim, M. Bomben, F. Forti, R. Sacco, M. Margoni, C. Voß, Marcin Chrzaszcz, B. Oberhof, J. Cochran, A. M. Lutz, A. Zallo, Dominik Müller, T. Schroeder, A. J. Lankford, Yu. G. Kolomensky, G. Piredda, V. Santoro, U. Mallik, G. Batignani, M. Biasini, D. N. Brown, Y. B. Li, Michael Sokoloff, F. Ferrarotto, E. M. T. Puccio, M. Carpinelli, R. Godang, C. Sciacca, R. C. Field, H. Ahmed, T. Leddig, E. A. Kravchenko, D. J. Lange, R. Prepost, G. Casarosa, M. Ebert, P. R. Burchat, J. A. Ernst, L. Zani, A. Rossi, G. A. Cowan, S. Emery, Eleonora Luppi, C. Hearty, Marcello Rotondo, T. Adye, L. Vitale, X. C. Lou, S. Dittrich, J. L. Ritchie, O. Long, Wu S. L., D. Bernard, G. Eigen, A. Filippi, D. J. Summers, G. Rizzo, S. I. Serednyakov, F. Palombo, G. Calderini, A. Soffer, D. S. Chao, S. Martellotti, G. De Nardo, Alberto Lusiani, Nicola Neri, H. M. Lacker, C. Chen, Biplab Dey, N. Tasneem, J. Albert, Fergus Wilson, S. J. Sekula, C. Cartaro, I. M. Peruzzi, D. J. Payne, E. Ben-Haim, E. Paoloni, R. de Sangro, P. Patteri, Yu. I. Skovpen, K. Honscheid, J. W. Gary, P. Taras, M. Heß, R. Kowalewski, M. R. Convery, N. Arnaud, T. Lueck, D. G. Hitlin, J. Chauveau, C. Hast, Simon Akar, A. R. Buzykaev, H. Koch, S. Bettarini, G. Raven, G. Finocchiaro, M. Piccolo, F. Simonetto, C. Touramanis, S. Luitz, K. R. Schubert, R. J. Sobie, A. Roodman, W. Dunwoodie, T. S. Mattison, A. Randle-Conde, W. Gradl, M. K. Sullivan, M. Verderi, R. Faccini, V. Poireau, M. A. Giorgi, J. M. Losecco, G. Marchiori, F. C. Porter, F. Bianchi, I. M. Nugent, R. Calabrese, F. Di Lodovico, E. P. Solodov, Elisa Manoni, Sw. Banerjee, A. P. Onuchin, L. Sun, Adrian John Bevan, Alessandro Pilloni, I. Garzia, S. Passaggio, D. R. Peimer, Thomas Latham, C. Patrignani, V. Tisserand, D. Aston, F. Anulli, D. Bettoni, J. M. Roney, S. Prell, W. Panduro Vazquez, B. G. Pushpawela, A. Gaz, S. H. Robertson, M. V. Purohit, Timothy Gershon, D. A. Roberts, E. Gabathuler, P. F. Harrison, A. M. Eisner, L. Cremaldi, Roger Barlow, J. R. Wilson, and T. S. Miyashita

Subjects
S system, Physics, 010308 nuclear & particles physics, Branching fraction, Detector, 01 natural sciences, law.invention, Nuclear physics, law, 0103 physical sciences, Mass spectrum, Spectral function, 010306 general physics, Collider, Energy (signal processing)
Abstract

The decay τ^− → K^−K_Sν_τ has been studied using 430×10^6 e^+e^− → τ^+τ^− events produced at a center-of-mass energy around 10.6 GeV at the PEP-II collider and studied with the BABAR detector. The mass spectrum of the K^−K_S system has been measured and the spectral function has been obtained. The measured branching fraction B(τ^− → K^−K_Sν_τ) = (0.739 ± 0.011(stat) ± 0.020(syst)) × 10^(-3) is found to be in agreement with earlier measurements.

Published
2018
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34. The Influence of Poisson’s Ratio on the Reliability of SAC Lead Free Solder Joints

Author

Jeffrey C. Suhling, Pradeep Lall, KM Rafidh Hassan, Munshi Basit, and Mohammad S. Alam

Subjects
010302 applied physics, Materials science, 020502 materials, 02 engineering and technology, Temperature cycling, Strain rate, Poisson distribution, 01 natural sciences, Finite element method, Poisson's ratio, symbols.namesake, 0205 materials engineering, Residual stress, 0103 physical sciences, symbols, Composite material, Material properties, Strain gauge
Abstract

In this study, we have conducted a combined numerical and experimental study on the Poisson’s ratio of SAC lead free solders. The Poisson’s ratio (PR) is one of the basic mechanical properties used in many material constitutive models. Although often not measured, it is important property in many finite element method (FEM) calculations. The value of the Poisson’s ratio of SAC lead free solders is relatively unexplored compared to other material properties, and for FEA simulations it is typically assumed to be v = 0.3. In the current work, we have shown the effects of the chosen value of the solder joint Poisson’s ratio on the finite element results for BGA components subjected to thermal cycling. In the finite element models, the reliability predictions were based on the Morrow-Darveaux energy-based fatigue model. Several sizes (5, 10, 15 mm) of PBGA components with SAC305 solder joints with 0.4 and 0.8 mm spacing were modeled. The packages were subjected to a time dependent cyclic temperature distribution from −40 to 125 °C. The package assemblies were assumed to be in a stress-free state at 25 °C (room temperature), with no residual stresses induced in the manufacturing process. The simulation results have demonstrated that for specified range of Poisson’s ratio values of 0.15 < v < 0.40, the solder Plastic Work varied over 20% and the Predicted Reliability Varied over 50%. To determine the actual Poisson’s ratio experimentally, uniaxial tensile stress-strain tests were carried out on SAC305 (96.5Sn3.0Ag0.5Cu) and SAC405 (95.5Sn4.0Ag0.5Cu) specimens using a micro tension/torsion testing machine with two strain rates (0.0001, and 0.00001 (1/sec)) and four testing temperatures (T = 25, 50, 75, 100 °C). Deformations and strains in axial and transverse directions were measured using strain gages with automatic data acquisition from LabVIEW software. The recorded transverse strain vs. axial strain data were then fit with a linear regression analysis to determine the Poisson’s ratio value. A test matrix of experiments was developed to study the effects of temperature, strain rate, alloy composition, and solidification cooling profile on the value of solder Poisson’s ratio. The Poisson’s ratio was found to increase with increasing temperature, and decrease with increasing strain rate. With increased silver content, SAC405 was found to have lower Poisson’s ratio than SAC305. Finally, using a slower solidification cooling profile led to an increase in the solder Poisson’s ratio value.

Published
2018
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35. Head-on collision between positron acoustic waves in homogeneous and inhomogeneous plasmas

Author

M. Hossain Ali, M. S. Alam, M. G. Hafez, and Mamunur Rashid Talukder

Subjects
Physics, Astronomy and Astrophysics, Acoustic wave, Plasma, 01 natural sciences, Charged particle, 010305 fluids & plasmas, Ion, Amplitude, Positron, Physics::Plasma Physics, Space and Planetary Science, 0103 physical sciences, Rogue wave, Atomic physics, Korteweg–de Vries equation, 010303 astronomy & astrophysics
Abstract

The head-on collision between positron acoustic solitary waves (PASWs) as well as the production of rogue waves (RWs) in homogeneous and PASWs in inhomogeneous unmagnetized plasma systems are investigated deriving the nonlinear evolution equations. The plasmas are composed of immobile positive ions, mobile cold and hot positrons, and hot electrons, where the hot positrons and hot electrons are assumed to follow the Kappa distributions. The evolution equations are derived using the appropriate coordinate transformation and the reductive perturbation technique. The effects of concentrations, kappa parameters of hot electrons and positrons, and temperature ratios on the characteristics of PASWs and RWs are examined. It is found that the kappa parameters and temperature ratios significantly modify phase shifts after head-on collisions and RWs in homogeneous as well as PASWs in inhomogeneous plasmas. The amplitudes of the PASWs in inhomogeneous plasmas are diminished with increasing kappa parameters, concentration and temperature ratios. Further, the amplitudes of RWs are reduced with increasing charged particles concentration, while it enhances with increasing kappa- and temperature parameters. Besides, the compressive and rarefactive solitons are produced at critical densities from KdV equation for hot and cold positrons, while the compressive solitons are only produced from mKdV equation for both in homogeneous and inhomogeneous plasmas.

Published
2018
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36. Multiclass Object Detection With Single Query in Hyperspectral Imagery Using Class-Associative Spectral Fringe-Adjusted Joint Transform Correlation

Author

Paheding Sidike, Vijayan K. Asari, and Mohammad S. Alam

Subjects
Spectral signature, Receiver operating characteristic, business.industry, Hyperspectral imaging, Pattern recognition, Image subtraction, 02 engineering and technology, Object (computer science), 01 natural sciences, Object detection, 010309 optics, symbols.namesake, Fourier transform, 0103 physical sciences, 0202 electrical engineering, electronic engineering, information engineering, symbols, General Earth and Planetary Sciences, Preprocessor, 020201 artificial intelligence & image processing, Computer vision, Artificial intelligence, Electrical and Electronic Engineering, business, Mathematics
Abstract

We present a deterministic object detection algorithm capable of detecting multiclass objects in hyperspectral imagery (HSI) without any training or preprocessing. The proposed method, which is named class-associative spectral fringe-adjusted joint transform correlation (CSFJTC), is based on joint transform correlation (JTC) between object and nonobject spectral signatures to search for a similar match, which only requires one query (training-free) from the object's spectral signature. Our method utilizes class-associative filtering, modified Fourier plane image subtraction, and fringe-adjusted JTC techniques in spectral correlation domain to perform the object detection task. The output of CSFJTC yields a pair of sharp correlation peaks for a matched target and negligible or no correlation peaks for a mismatch. Experimental results, in terms of receiver operating characteristic (ROC) curves and area-under-ROC (AUROC), on three popular real-world hyperspectral data sets demonstrate the superiority of the proposed CSFJTC technique over other well-known hyperspectral object detection approaches.

Published
2016
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37. A novel technique for recognition and tracking of moving objects based on E-MACH and proximate gradient (PG) filters

Author

Haris Masood, Qaiser Javed, Muhammad Abbas, Muazzam A. Khan, Rupert Young, Saad Rehman, and Mohammad S. Alam

Subjects
business.industry, Computer science, Posterior probability, ComputingMethodologies_IMAGEPROCESSINGANDCOMPUTERVISION, Image processing, 02 engineering and technology, Filter (signal processing), Object (computer science), Tracking (particle physics), 01 natural sciences, 010309 optics, 0103 physical sciences, 0202 electrical engineering, electronic engineering, information engineering, 020201 artificial intelligence & image processing, Algorithm design, Computer vision, Noise (video), Artificial intelligence, Particle filter, business
Abstract

Recognition and Tracking of Images is still one of the most sought after areas in the field of Image Processing mainly because of applications and presentations associated with it. Recognition of objects in a crowded and occluded environment is very challenging task as all the other objects besides the object of interest acts as noise. Other challenges associated with recognition and Tracking is the ever changing coordinates of the object during the tracking procedure. In this paper both the above mentioned challenges have been addressed using a novel technique which merges a very efficient recognition and tracking procedures. First recognition of image is done using modified Maximum Average Correlation Filter (MACH) which will identify the two dimensional coordinates of the object if interest in a secluded environment. The coordinates are then updated using a Proximal Gradient (PG) filter which uses Particle Filter as for systematic and periodic updation of images recursively. Proximal Gradient Filter uses the random variables and their posterior distribution for efficient prediction of coordinates of object of interest. End result is very efficient and fast tracking of object in subsequent frames.

Published
2017
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38. Measurement of the e+e−→π+π−π0π0 cross section using initial-state radiation at BABAR

Author

S. H. Robertson, N. Tasneem, R. Godang, E. A. Kravchenko, H. M. Lacker, Aidan Randle-Conde, G. Vasseur, F. De Mori, Crisostomo Sciacca, D. Aston, K. Griessinger, G. Rizzo, A. Oyanguren, G. Wormser, Denis Bernard, R. Cenci, A. Zallo, E. Grauges, Mario Giorgi, T. E. Latham, M. Carpinelli, J. M. Roney, A. J. S. Smith, J. P. Lees, A. M. Eisner, S. Prell, I. Garzia, V. Poireau, A. Soffer, M. Fritsch, C. L. Davis, U. Mallik, T. S. Miyashita, J. Chauveau, S. Luitz, W. Dunwoodie, F. Simonetto, J. G. Smith, A. Lusiani, B. Bhuyan, J. L. Ritchie, V. E. Blinov, D. E. Hutchcroft, J. Cochran, K. Yu Todyshev, B. G. Fulsom, T. Leddig, B. G. Pushpawela, M. V. Purohit, B. N. Ratcliff, J. Albert, V. Santoro, W. S. Lockman, K. T. Flood, T. S. Mattison, Peter S. Kim, M. Piccolo, R. Stroili, W. J. Wisniewski, M. R. Convery, X. C. Lou, S. Passaggio, D. N. Brown, C. P. Jessop, A. M. Rossi, A. G. Denig, J. Va’vra, R. Y. So, V. B. Golubev, G. Batignani, R. Sacco, M. K. Sullivan, C. Hearty, F. F. Wilson, S. Martellotti, D. W. G. S. Leith, J. W. Gary, M. Hess, A. V. Gritsan, E. Ben-Haim, D. J. Summers, P. F. Harrison, M. Röhrken, S. Emery, R. F. Schwitters, F. Di Lodovico, R. C. Field, R. Gorodeisky, R. J. Sobie, A. Palano, Z. C. Huard, L. Vitale, D. J. Payne, D. A. Roberts, G. Calderini, S. Bettarini, C. Hast, M. Rama, D. J. Lange, F. Martinez-Vidal, G. Finocchiaro, I. M. Nugent, G. Piredda, A. M. Lutz, M. T. Graham, A. Hafner, E. M. T. Puccio, J. J. Walsh, J. A. McKenna, W. Panduro Vazquez, E. Luppi, D. S. Chao, M. S. Alam, J. Ocariz, N. Guttman, M. Davier, A. Roodman, F. Anulli, M. Rotondo, G. De Nardo, B. Oberhof, S. M. Spanier, Alessandro Gaz, B. Echenard, T. J. Gershon, R. de Sangro, P. Taras, E. P. Solodov, R. Cheaib, F. Ferroni, R. Waldi, B. T. Meadows, G. D. Lafferty, G. Raven, G. Marchiori, D. Gamba, M. D. Sokoloff, M. Bellis, P. R. Burchat, Elisa Manoni, P. Patteri, C. Buenger, J. M. LoSecco, E. Fioravanti, J. P. Coleman, C. Voss, B. Dey, F. Palombo, T. Lueck, James R. Wilson, W. Gradl, Stephen Robert Wagner, R. Calabrese, K. R. Schubert, C. Cartaro, C. Touramanis, S. J. Sekula, G. Eigen, A. Jawahery, R. Faccini, F. Ferrarotto, A. J. Lankford, F. Le Diberder, A. P. Onuchin, L. Lanceri, E. Paoloni, G. Cibinetto, P. Ongmongkolkul, L. M. Cremaldi, M. Ebert, D. G. Hitlin, F. Forti, Nicola Neri, A. Filippi, D. B. MacFarlane, A. Calcaterra, R. Cowan, Marco Bomben, Douglas Wright, H. A. Neal, G. Casarosa, A. R. Buzykaev, Hamad Ahmed, A. Beaulieu, Yu. G. Kolomensky, V. P. Druzhinin, C. Bozzi, G. Cowan, K. Honscheid, R. J. Barlow, M. Posocco, Yu. I. Skovpen, G. R. Bonneaud, J. Dorfan, M. Verderi, N. Arnaud, Alessandro Pilloni, D. R. Peimer, O. Gruenberg, E. Gabathuler, W. R. Innes, I. M. Peruzzi, Maurizio Biasini, D. R. Muller, Tamara Vazquez Schroeder, Owen Rosser Long, J. A. Ernst, S. I. Serednyakov, F. Bianchi, L. Sun, Tim Adye, S. Dittrich, M. Chrzaszcz, Adrian John Bevan, R. D. Kass, R. Kowalewski, Sw. Banerjee, J. M. Izen, G. Simi, D. Bettoni, Florian Urs Bernlochner, C. Patrignani, V. Tisserand, Martino Margoni, Simon Akar, and R. Prepost

Subjects
Physics, Muon, Photon, Anomalous magnetic dipole moment, 010308 nuclear & particles physics, Electron–positron annihilation, Hadron, BaBar experiment, Electron, 01 natural sciences, Nuclear physics, Positron, 0103 physical sciences, 010306 general physics
Abstract

The process e^+e^− → π^+π^−2π^0γ is investigated by means of the initial-state radiation technique, where a photon is emitted from the incoming electron or positron. Using 454.3 fb^(-1) of data collected around a center-of-mass energy of √s = 10.58 GeV by the BABAR experiment at SLAC, approximately 150000 signal events are obtained. The corresponding nonradiative cross section is measured with a relative uncertainty of 3.6% in the energy region around 1.5 GeV, surpassing all existing measurements in precision. Using this new result, the channel’s contribution to the leading order hadronic vacuum polarization contribution to the anomalous magnetic moment of the muon is calculated as (g^(π+π−2π^0)_μ−2)/2=(17.9 ± 0.1_(stat) ± 0.6_(syst))×10^(-10) in the energy range 0.85 GeV < E_(CM) < 1.8 GeV. In the same energy range, the impact on the running of the fine-structure constant at the Z^0-pole is determined as Δα^(π+π−2π0)(M^2_Z) = (4.44 ± 0.02_(stat) ± 0.14_(syst))×10^(-4). Furthermore, intermediate resonances are studied and especially the cross section of the process e^+e^− → ωπ^0 → π^+π^−2π^0 is measured.

Published
2017
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39. Evidence for CP violation in B+→K*(892)+π0 from a Dalitz plot analysis of B+→KS0π+π0 decays

Author

J. W. Gary, R. Gorodeisky, M. Simard, D. A. Roberts, A. M. Lutz, A. M. Eisner, J. Olsen, M. T. Graham, A. Hafner, E. M. T. Puccio, U. Mallik, Douglas Wright, Peter S. Kim, A. G. Denig, A. V. Gritsan, M. Röhrken, Cheng Chen, T. S. Miyashita, N. Neri, M. V. Purohit, A. Palano, R. F. Schwitters, F. De Mori, R. Contri, G. J. King, J. Albert, D. J. Bard, Sridhara Dasu, C. Cartaro, A. Khan, K. T. Flood, David Hutchcroft, L. Piemontese, P. Patteri, Denis Bernard, G. Lynch, Simon Akar, R. Prepost, D. Lindemann, M. J. Lewczuk, Hamad Ahmed, C. Bünger, E. Gabathuler, W. R. Innes, P. F. Harrison, A. Filippi, F. C. Porter, T. Leddig, R. Sacco, A. J. S. Smith, D. B. MacFarlane, A. Calcaterra, S. J. Sekula, A. Jawahery, B. N. Ratcliff, F. Di Lodovico, J. Va’vra, V. Prasad, B. Bhuyan, B. G. Fulsom, A. Adametz, J. Chauveau, E. A. Kravchenko, N. Guttman, B. Stugu, Crisostomo Sciacca, D. Aston, G. Rizzo, G. Marchiori, D. Su, R. Faccini, F. Ferrarotto, A. J. Lankford, F. Le Diberder, J. D. Richman, A. P. Onuchin, Pablo Villanueva-Perez, L. Lanceri, R. Godang, Dmytro Kovalskyi, M. Piccolo, L. M. Cremaldi, H. R. Band, W. S. Lockman, G. Vasseur, I. M. Peruzzi, R. Cowan, B. Echenard, M. Chrzaszcz, J. P. Lees, A. Stocchi, M. Ebert, M. R. Convery, R. Cenci, D. J. Payne, C. Voß, G. Cibinetto, J. L. Ritchie, Marco Bomben, S. Martellotti, J. Ocariz, Maria Roberta Monge, C. H. Cheng, P. Taras, E. P. Solodov, A. Zallo, H. M. Lacker, H. L. Lynch, G. Batignani, Tim Adye, E. Paoloni, J. R. Fry, R. Cheaib, Y. B. Pan, J. Cochran, D. Bettoni, M. Fritsch, S. I. Serednyakov, R. Kowalewski, F. Bianchi, E. O. Olaiya, E. Fioravanti, E. Ben-Haim, R. D. Kass, S. Luitz, R. Waldi, D. G. Hitlin, S. Bettarini, A. J. Bevan, M. Gaspero, V. Santoro, Corrado Angelini, S. Dittrich, G. Onorato, C. P. Jessop, P. Ongmongkolkul, R. de Sangro, S. L. Wu, Florian Urs Bernlochner, R. Y. So, J. J. Walsh, F. Palombo, T. Lueck, D. Lopes Pegna, J. M. LoSecco, V. B. Golubev, B. Dey, Bogdan Malaescu, B. T. Meadows, P. C. Bloom, W. H. Toki, G. Raven, C. Touramanis, S. M. Spanier, M. Hess, Yu. I. Skovpen, R. Andreassen, M. K. Sullivan, B. G. Pushpawela, I. M. Nugent, W. J. Wisniewski, S. Passaggio, H. W. Wulsin, M. D. Sokoloff, V. P. Druzhinin, T. E. Latham, M. Carpinelli, P. R. Burchat, C. Bozzi, G. Cowan, Denis Derkach, K. Honscheid, M. Rotondo, Yu. G. Kolomensky, C. L. Davis, O. Grünberg, G. De Nardo, M. J. Lee, G. Grosdidier, B. A. Schumm, S. Prell, V. E. Blinov, I. Garzia, Alessandro Pilloni, E. Grauges, C. Patrignani, Mario Giorgi, L. T. Kerth, M. Rama, F. Forti, V. Poireau, G. D. Lafferty, Z. C. Huard, D. S. Chao, J. A. McKenna, D. R. Peimer, A. Soffer, R. J. Barlow, J. M. Roney, M. Morandin, A. Lusiani, K. Yu Todyshev, D. W. G. S. Leith, Christopher West, V. Tisserand, G. Wormser, M. Posocco, M. Davier, C. Hast, J. P. Coleman, U. Uwer, F. Anulli, R. Stroili, F. Simonetto, J. M. Izen, R. H. Schindler, G. Calderini, J. G. Smith, D. J. Lange, G. Piredda, H. A. Neal, W. Panduro Vazquez, G. Casarosa, N. Tasneem, Alessandro Gaz, T. M. Hong, S. H. Robertson, T. S. Mattison, Maurizio Biasini, D. R. Muller, Aidan Randle-Conde, Herbert Koch, Martino Margoni, T. J. Gershon, M. Franco Sevilla, A. R. Buzykaev, A. Beaulieu, Tamara Vazquez Schroeder, R. Ayad, James R. Wilson, G. R. Bonneaud, J. Dorfan, D. N. Brown, K. Griessinger, Owen Rosser Long, A. Oyanguren, A. Seiden, F. F. Wilson, X. C. Lou, W. Dunwoodie, C. Hearty, William T. Ford, R. Calabrese, H. H. F. Choi, B. Hamilton, S. Emery, Elisa Manoni, J. A. Ernst, D. J. Summers, G. P. Dubois-Felsmann, P. Roudeau, L. Sun, R. J. Sobie, M. Verderi, S. Playfer, B. Spaan, L. Vitale, F. Martinez-Vidal, Ph Leruste, N. Arnaud, H. Briand, W. Gradl, E. Luppi, M. L. Perl, A. M. Rossi, Sw. Banerjee, G. Eigen, R. C. Field, A. Roodman, G. Finocchiaro, V. Luth, M. S. Alam, A. Snyder, B. Oberhof, T. Pulliam, G. Simi, F. Ferroni, D. Gamba, M. Bellis, P. M. Patel, Stephen Robert Wagner, and K. R. Schubert

Subjects
Physics, Particle physics, Meson, 010308 nuclear & particles physics, Branching fraction, Hadron, Dalitz plot, Elementary particle, 01 natural sciences, Nuclear physics, Particle decay, 0103 physical sciences, CP violation, B meson, 010306 general physics
Abstract

We report a Dalitz plot analysis of charmless hadronic decays of charged B mesons to the final state K^0_Sπ^+π^0 using the full BABAR data set of 470.9±2.8 million BB[overbar] events collected at the Υ(4S)resonance. We measure the overall branching fraction and CP asymmetry to be B(B^+→K^0π^+π^0)=(31.8±1.8±2.1+^(6.0)_(−0.0))×10^(-6) and A_(CP)(B^+→K^0π^+π^0)=0.07±0.05±0.03^(+0.02)_(−0.03), where the uncertainties are statistical, systematic, and due to the signal model, respectively. This is the first measurement of the branching fraction for B^+→K^0π^+π^0. We find first evidence of a CP asymmetry in B^+→K∗(892)+π^0 decays: A_(CP)(B^+→K∗(892)^+π^0)=−0.52±0.14±0.04^(+0.04)_(−0.02). The significance of this asymmetry, including systematic and model uncertainties, is 3.4 standard deviations. We also measure the branching fractions and CP asymmetries for three other intermediate decay modes.

Published
2017
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40. Search for Invisible Decays of a Dark Photon Produced in e+e− Collisions at BaBar

Author

D. J. Payne, M. Verderi, J. Chauveau, F. De Mori, A. M. Rossi, Joseph Izen, S. Martellotti, I. M. Nugent, A. Giuffrida, D. S. Chao, M. Davier, V. B. Golubev, Heiko Lacker, A. Roodman, Roland Waldi, Abner Soffer, J. L. Ritchie, F. Ferroni, U. Mallik, Paul Fraser Harrison, Ju-Young Kim, T. E. Latham, M. Carpinelli, Stephen Robert Wagner, M. K. Sullivan, J. Ocariz, T. S. Miyashita, K. R. Schubert, N. Neri, T. S. Mattison, E. Fioravanti, C. Hast, D. J. Lange, G. Piredda, G. Wormser, A. Palano, Florian Urs Bernlochner, F. Palombo, T. Lueck, R. Y. So, R. Sacco, R. Godang, Z. C. Huard, W. Panduro Vazquez, P. Taras, E. P. Solodov, D. B. MacFarlane, M. Rama, R. Cenci, M. Fritsch, J. W. Gary, J. A. McKenna, David Hutchcroft, E. Paoloni, A. Zallo, T. J. Gershon, T. Schroeder, S. Bettarini, Yu G. Kolomensky, W. S. Lockman, J. P. Coleman, W. R. Innes, F. Anulli, S. Luitz, A. Filippi, P. Patteri, Alessandro Gaz, D. Gamba, J. Va’vra, M. V. Purohit, M. Bellis, R. Cheaib, J. Albert, Elisa Manoni, B. Bhuyan, D. Aston, C. H. Chen, Andrei Gritsan, B. G. Fulsom, J. J. Walsh, S. M. Spanier, J. Dorfan, M. Heß, N. Tasneem, D. N. Brown, R. Faccini, F. Ferrarotto, A. J. Lankford, Mark Derdzinski, R. Cowan, L. M. Cremaldi, M. T. Graham, J. M. LoSecco, J. P. Lees, F. Le Diberder, S. Prell, A. M. Lutz, I. Garzia, A. J.S. Smith, D. G. Hitlin, James H Cochran, B. Dey, G. D. Lafferty, K. Yu Todyshev, R. C. Field, A. Oyanguren, S. H. Robertson, R. Gorodeisky, Herbert Koch, S. Passaggio, R. Stroili, F. Forti, D. A. Roberts, C. H. Cheng, H. A. Neal, P. Ongmongkolkul, K. Griessinger, Aidan Randle-Conde, I. M. Peruzzi, G. Casarosa, C. Bünger, Yu I. Skovpen, R. de Sangro, G. R. Bonneaud, V. Santoro, T. Leddig, A. Lusiani, C. Touramanis, W. J. Wisniewski, Sau Lan Wu, A. Hafner, O. Grünberg, E. M. T. Puccio, A. R. Buzykaev, M. S. Alam, A. Beaulieu, E. Grauges, Mario Giorgi, James R. Wilson, R. Calabrese, G. Eigen, Simon Akar, D. J. Summers, M. Bomben, R. J. Sobie, L. Vitale, F. Martinez-Vidal, Dominik Müller, G. A. Cowan, G. J. King, C. L. Davis, M. Ebert, J. M. Roney, Stephen Sekula, J. G. Smith, V. P. Druzhinin, C. Bozzi, E. Luppi, H. Ahmed, N. Guttman, G. De Nardo, R. F. Schwitters, F. Simonetto, G. Marchiori, A. Jawahery, A. P. Onuchin, X. C. Lou, B. T. Meadows, G. Raven, V. E. Blinov, K. Honscheid, R. J. Barlow, G. Cibinetto, M. Posocco, Crisostomo Sciacca, G. Rizzo, Colin Jessop, R. Prepost, M. D. Sokoloff, P. R. Burchat, A. Calcaterra, D. W. G. S. Leith, G. Calderini, S. Emery, E. A. Kravchenko, G. Vasseur, K. T. Flood, Alessandro Pilloni, D. R. Peimer, C. Hearty, R. Kowalewski, C. Cartaro, Maurizio Biasini, Owen Rosser Long, L. Sun, Adrian John Bevan, Douglas Wright, S. I. Serednyakov, F. Bianchi, S. Dittrich, E. Gabathuler, M. R. Convery, F. C. Porter, A. G. Denig, M. Chrzaszcz, C. Voß, D. Bettoni, B. N. Ratcliff, C. Patrignani, V. Tisserand, A. M. Eisner, Sw. Banerjee, G. Simi, N. Arnaud, Tim Adye, R. D. Kass, Martino Margoni, G. Finocchiaro, M. Rotondo, M. Röhrken, F. F. Wilson, B. Oberhof, V. Poireau, M. Piccolo, P. C. Kim, G. Batignani, E. Ben-Haim, B. Echenard, D. Bernard, W. Dunwoodie, J. A. Ernst, W. Gradl, B. G. Pushpawela, L. Lanceri, and F. Di Lodovico

Subjects
Physics, Particle physics, Muon, 010308 nuclear & particles physics, Electron–positron annihilation, Dark matter, General Physics and Astronomy, Coupling (probability), 01 natural sciences, Dark photon, B-factory, Nuclear physics, 0103 physical sciences, High Energy Physics::Experiment, Production (computer science), 010306 general physics, Boson
Abstract

We search for single-photon events in 53 fb^{-1} of e^{+}e^{-} collision data collected with the BABAR detector at the PEP-II B-Factory. We look for events with a single high-energy photon and a large missing momentum and energy, consistent with production of a spin-1 particle A^{'} through the process e^{+}e^{-}→γA^{'}; A^{'}→invisible. Such particles, referred to as "dark photons," are motivated by theories applying a U(1) gauge symmetry to dark matter. We find no evidence for such processes and set 90% confidence level upper limits on the coupling strength of A^{'} to e^{+}e^{-} in the mass range m_{A^{'}}≤8 GeV. In particular, our limits exclude the values of the A^{'} coupling suggested by the dark-photon interpretation of the muon (g-2)_{μ} anomaly, as well as a broad range of parameters for the dark-sector models.

Published
2017
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41. High temperature tensile and creep behavior of lead free solders

Author

Mohammad S. Alam, Jeffrey C. Suhling, and Pradeep Lall

Subjects
010302 applied physics, Work (thermodynamics), Materials science, Dopant, Doping, Constitutive equation, Metallurgy, 02 engineering and technology, Strain rate, 021001 nanoscience & nanotechnology, 01 natural sciences, Temperature measurement, Creep, 0103 physical sciences, Ultimate tensile strength, 0210 nano-technology
Abstract

The mechanical behavior of lead free solders is highly dependent on the testing temperature. Previous investigations on mechanical characterization of conventional and doped lead free SAC solders have mainly emphasized stress-strain and creep testing at temperatures from 25 to 125 °C. However, solders are exposed to very high temperatures from 125–200 °C in several harsh environment applications including well boring, geothermal energy, and aerospace engines. In the current work, we have extended our previous studies to explore mechanical properties for SAC305, SAC_Q, SAC_R, and Innolot solders at temperatures from 125–200 °C at a strain rate of 0.001 (sec−1). The Anand constitutive model with parameters measured previously using test data from 25–125 has been shown to fit the high temperature stress-strain curves reasonably well. In addition, high temperature creep behavior of SAC305 was explored. Finally, the high temperature tensile properties of the above-mentioned solders have been compared. Our results show a significant degradation of mechanical properties of lead-free solders at higher temperatures. Also, a noteworthy increase in the secondary creep strain rate has been observed. Comparison of the results for different solders has shown that the addition of dopants (e.g. Bi, Ni, and Sb) in the traditional SAC alloys improve their properties significantly.

Published
2017
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42. Wavelet filtered shifted phase-encoded joint transform correlation for face recognition

Author

Md. Moniruzzaman and Mohammad S. Alam

Subjects
Facial expression, Noise (signal processing), Computer science, business.industry, ComputingMethodologies_IMAGEPROCESSINGANDCOMPUTERVISION, Phase (waves), Pattern recognition, 02 engineering and technology, 01 natural sciences, Facial recognition system, 010309 optics, Wavelet, 0103 physical sciences, Pattern recognition (psychology), 0202 electrical engineering, electronic engineering, information engineering, 020201 artificial intelligence & image processing, Computer vision, Artificial intelligence, Joint (audio engineering), business
Abstract

A new wavelet-filtered-based Shifted- phase-encoded Joint Transform Correlation (WPJTC) technique has been proposed for efficient face recognition. The proposed technique uses discrete wavelet decomposition for preprocessing and can effectively accommodate various 3D facial distortions, effects of noise, and illumination variations. After analyzing different forms of wavelet basis functions, an optimal method has been proposed by considering the discrimination capability and processing speed as performance trade-offs. The proposed technique yields better correlation discrimination compared to alternate pattern recognition techniques such as phase-shifted phase-encoded fringe-adjusted joint transform correlator. The performance of the proposed WPJTC has been tested using the Yale facial database and extended Yale facial database under different environments such as illumination variation, noise, and 3D changes in facial expressions. Test results show that the proposed WPJTC yields better performance compared to alternate JTC based face recognition techniques.

Published
2017
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43. Image encryption with chaotic map and Arnold transform in the gyrator transform domains

Author

Bin Cai, Jun Zhao, Hongling Luo, Jun Sang, and Mohammad S. Alam

Subjects
Theoretical computer science, Computer science, business.industry, Key space, 02 engineering and technology, Encryption, 01 natural sciences, Pseudorandom binary sequence, Image (mathematics), 010309 optics, 020210 optoelectronics & photonics, Histogram, 0103 physical sciences, Ciphertext, 0202 electrical engineering, electronic engineering, information engineering, Logistic map, business, Rotation (mathematics), Algorithm
Abstract

An image encryption method combing chaotic map and Arnold transform in the gyrator transform domains was proposed. Firstly, the original secret image is XOR-ed with a random binary sequence generated by a logistic map. Then, the gyrator transform is performed. Finally, the amplitude and phase of the gyrator transform are permutated by Arnold transform. The decryption procedure is the inverse operation of encryption. The secret keys used in the proposed method include the control parameter and the initial value of the logistic map, the rotation angle of the gyrator transform, and the transform number of the Arnold transform. Therefore, the key space is large, while the key data volume is small. The numerical simulation was conducted to demonstrate the effectiveness of the proposed method and the security analysis was performed in terms of the histogram of the encrypted image, the sensitiveness to the secret keys, decryption upon ciphertext loss, and resistance to the chosen-plaintext attack.

Published
2017
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44. Dalitz plot analyses of J/ψ→π+π−π0 , J/ψ→K+K−π0 , and J/ψ→Ks0K±π∓ produced via e+e− annihilation with initial-state radiation

Author

Maurizio Biasini, F. Bianchi, J. Chauveau, F. De Mori, R. Kowalewski, S. Dittrich, Owen Rosser Long, J. A. Ernst, A. P. Onuchin, L. Sun, Adrian John Bevan, Alessandro Pilloni, D. R. Peimer, C. Hearty, Z. C. Huard, F. Di Lodovico, Roberto Calabrese, Heiko Lacker, Denis Bernard, D. J. Payne, R. Faccini, A. J. Lankford, S. Prell, J. Ocariz, A. Roodman, C. Bozzi, B. N. Ratcliff, D. W. G. S. Leith, K. R. Schubert, C. H. Chen, S. M. Spanier, I. M. Peruzzi, Vladimir Blinov, J. L. Ritchie, S. I. Serednyakov, E. Fioravanti, G. Finocchiaro, C. H. Cheng, Sw. Banerjee, A. G. Denig, C. Bünger, J. W. Gary, G. Calderini, E. A. Kravchenko, G. Rizzo, M. Rama, Roland Waldi, Nicolas Arnaud, R. Cowan, A. Zallo, James H Cochran, V. Poireau, R. Cheaib, S. H. Robertson, F. Ferroni, Michael R. Pennington, L. M. Cremaldi, Herbert Koch, G. De Nardo, Crisostomo Sciacca, D. Aston, R. Y. So, S. L. Wu, Yu. I. Skovpen, H. A. Neal, A. Lusiani, J. M. LoSecco, M. Röhrken, Peter S. Kim, Eleonora Luppi, K. Griessinger, Abner Soffer, J. P. Lees, G. A. Cowan, Paul Fraser Harrison, B. Dey, J. Dorfan, V. P. Druzhinin, M. T. Graham, Florian Urs Bernlochner, F. Palombo, T. Lueck, Douglas Wright, G. Cibinetto, R. Godang, U. Mallik, E. Gabathuler, Ju-Young Kim, G. Piredda, J. J. Walsh, W. R. Innes, F. C. Porter, R. Cenci, G. J. King, A. R. Buzykaev, D. N. Brown, P. Ongmongkolkul, J. M. Roney, B. Bhuyan, A. Beaulieu, M. Verderi, B. G. Fulsom, N. Tasneem, F. Le Diberder, C. Cartaro, R. C. Field, M. Heß, J. A. McKenna, M. Chrzaszcz, C. Voß, T. E. Latham, Stephen Robert Wagner, E. Manoni, Colin Jessop, R. Prepost, E. Paoloni, R. de Sangro, G. D. Lafferty, D. G. Hitlin, B. Echenard, A. Oyanguren, Randall Sobie, J. G. Smith, Andrei Gritsan, M. Fritsch, M. S. Alam, Aidan Randle-Conde, S. Passaggio, G. R. Bonneaud, Stephen Sekula, D. E. Hutchcroft, Adam P. Szczepaniak, A. M. Lutz, T. Leddig, A. Calcaterra, M. K. Sullivan, Yu G. Kolomensky, A. M. Eisner, G. Batignani, C. Touramanis, W. S. Lockman, A. Jawahery, F. F. Wilson, R. F. Schwitters, E. Ben-Haim, B. Oberhof, O. Grünberg, V. Santoro, I. Garzia, K. Honscheid, M. R. Convery, C. Patrignani, V. Tisserand, K. Yu. Todyshev, G. Vasseur, R. J. Barlow, J. Va’vra, A. Filippi, K. T. Flood, Daniel A. Roberts, D. J. Summers, Tim Adye, M. V. Purohit, D. Bettoni, T. S. Mattison, R. D. Kass, D. Gamba, J. Albert, W. J. Wisniewski, S. Luitz, Giulia Casarosa, G. Wormser, M. Bomben, S. Emery, S. Martellotti, C. Hast, D. J. Lange, L. Vitale, F. Martinez-Vidal, N. Neri, W. Panduro Vazquez, N. Guttman, Dominik Müller, E. Grauges, Mario Giorgi, V. B. Golubev, T. J. Gershon, M. Rotondo, H. Ahmed, G. Marchiori, F. Simonetto, T. Schroeder, Gabriele Simi, W. Gradl, C. L. Davis, L. Lanceri, P. Patteri, P. Taras, W. Dunwoodie, A. Gaz, X. C. Lou, B. G. Pushpawela, F. Forti, J. P. Coleman, F. Anulli, A. Palano, Martino Margoni, M. Piccolo, S. Bettarini, E. P. Solodov, T. S. Miyashita, M. Posocco, R. Gorodeisky, M. Bellis, A. Hafner, F. Ferrarotto, E. M. T. Puccio, M. Ebert, D. B. MacFarlane, R. Stroili, R. Sacco, James R. Wilson, Joseph Izen, G. Eigen, A. J.S. Smith, Simon Akar, M. Carpinelli, A. Rossi, B. T. Meadows, G. Raven, M. D. Sokoloff, P. R. Burchat, I. M. Nugent, D. S. Chao, and M. Davier

Subjects
Physics, Particle physics, Annihilation, Meson, 010308 nuclear & particles physics, Branching fraction, Electron–positron annihilation, Hadron, Dalitz plot, 01 natural sciences, Nuclear physics, Particle decay, 0103 physical sciences, 010306 general physics, Dimensionless quantity
Abstract

We study the processes e^+e^− → γISR J/ψ, where J/ψ → π^+π^−π^0, J/ψ → K^+K^−π^0, and J/ψ → K^0_SK^±π^∓ using a data sample of 519 fb^(−1) recorded with the BABAR detector operating at the SLAC PEP-II asymmetric-energy e^+e^− collider at center-of-mass energies at and near the Υ(nS) (n=2,3,4) resonances. We measure the ratio of branching fractions R_1 = ^(B(J/ψ → K^+K^−π^0)) /_(B(J/ψ → π^+π^−π^0)) and R_2 = ^(B(J/ψ → K^0_SK^±π^∓))/_(B(J/ψ → π^+π^−π^0)). We perform Dalitz plot analyses of the three J/ψ decay modes and measure fractions for resonances contributing to the decays. We also analyze the J/ψ → π^+π^−π^0 decay using the Veneziano model. We observe structures compatible with the presence of ρ(1450) in all three J/ψ decay modes and measure the relative branching fraction: R(ρ(1450)) = ^(B(ρ(1450) → K^+K^−))/_(B(ρ(1450) → π^+π^−)) = 0.307±0.084(stat)±0.082(sys).

Published
2017
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45. Cross sections for the reactions e+e−→KS0KL0π0 , KS0KL0η , and KS0KL0π0π0 from events with initial-state radiation

Author

B. N. Ratcliff, Cheng Chen, Elisa Manoni, D. B. MacFarlane, A. Calcaterra, M. Heß, V. B. Golubev, F. De Mori, J. M. Izen, Marco Bomben, Denis Bernard, J. Va’vra, A. J. S. Smith, M. Rotondo, M. Rama, J. A. McKenna, N. Guttman, A. M. Eisner, Martino Margoni, S. Bettarini, A. J. Bevan, C. Cartaro, J. Chauveau, G. Marchiori, G. De Nardo, A. V. Gritsan, C. Touramanis, A. M. Rossi, R. Faccini, F. Ferrarotto, A. J. Lankford, F. Le Diberder, A. G. Denig, L. Lanceri, C. L. Davis, W. Gradl, F. Di Lodovico, S. M. Spanier, A. Roodman, G. J. King, R. F. Schwitters, M. V. Purohit, C. Hearty, D. J. Summers, J. P. Lees, H. A. Neal, G. Casarosa, A. Palano, J. Albert, Alessandro Pilloni, D. R. Peimer, R. C. Field, F. Ferroni, D. J. Payne, Douglas Wright, So R. Y., J. W. Gary, Tim Adye, P. F. Harrison, R. D. Kass, J. J. Walsh, A. R. Buzykaev, R. J. Sobie, L. Vitale, F. Martinez-Vidal, G. Finocchiaro, A. Beaulieu, J. Cochran, M. Piccolo, M. Röhrken, C. Hast, Ju-Young Kim, Crisostomo Sciacca, D. Aston, G. Rizzo, J. L. Ritchie, I. M. Peruzzi, C. Bünger, M. S. Alam, G. Batignani, D. J. Lange, G. Piredda, W. Panduro Vazquez, Stephen Robert Wagner, J. Ocariz, Y. I. Skovpen, U. Mallik, G. D. Lafferty, E. Luppi, K. R. Schubert, C. H. Cheng, E. Ben-Haim, T. J. Gershon, S. Martellotti, B. Bhuyan, Hamad Ahmed, R. Cheaib, Peter S. Kim, A. Filippi, B. Oberhof, D. Gamba, B. G. Fulsom, F. Simonetto, R. Waldi, P. Taras, E. P. Solodov, T. S. Miyashita, N. Neri, S. I. Serednyakov, P. Patteri, M. Bellis, F. Bianchi, J. M. LoSecco, R. Cowan, I. M. Nugent, B. Dey, J. M. Roney, D. E. Hutchcroft, T. Leddig, D. S. Chao, James R. Wilson, S. Dittrich, Maurizio Biasini, D. R. Muller, J. G. Smith, W. S. Lockman, R. Calabrese, M. Davier, V. Santoro, C. P. Jessop, J. P. Coleman, R. de Sangro, M. R. Convery, T. S. Mattison, V. P. Druzhinin, C. Bozzi, P. Ongmongkolkul, G. Cowan, E. Paoloni, K. Honscheid, S. Banerjee, X. C. Lou, R. Godang, G. Eigen, M. K. Sullivan, W. J. Wisniewski, R. J. Barlow, Tamara Vazquez Schroeder, D. N. Brown, S. Prell, I. Garzia, M. Posocco, H. M. Lacker, N. Tasneem, F. F. Wilson, Owen Rosser Long, T. E. Latham, V. Poireau, M. Carpinelli, S. Passaggio, S. Emery, Wu S. L., S. H. Robertson, A. Soffer, S. J. Sekula, Herbert Koch, A. Jawahery, R. Stroili, Y. G. Kolomensky, A. Lusiani, J. A. Ernst, K. Griessinger, Aidan Randle-Conde, A. P. Onuchin, A. Oyanguren, G. Cibinetto, B. Echenard, C. Voß, L. Sun, O. Grünberg, Z. C. Huard, F. Anulli, Alessandro Gaz, R. Kowalewski, G. R. Bonneaud, J. Dorfan, E. Fioravanti, F. Palombo, T. Lueck, M. Verderi, N. Arnaud, K. Y. Todyshev, V. E. Blinov, D. W. G. S. Leith, E. Grauges, G. Calderini, Mario Giorgi, Simon Akar, R. Prepost, G. Simi, E. A. Kravchenko, D. Bettoni, Florian Urs Bernlochner, G. Vasseur, R. Cenci, A. Zallo, K. T. Flood, C. Patrignani, M. Fritsch, R. Sacco, V. Tisserand, L. M. Cremaldi, M. Ebert, D. G. Hitlin, S. Luitz, E. Gabathuler, W. R. Innes, F. Forti, F. C. Porter, G. Wormser, M. Chrzaszcz, B. G. Pushpawela, W. Dunwoodie, B. T. Meadows, G. Raven, M. D. Sokoloff, P. R. Burchat, R. Gorodeisky, D. A. Roberts, A. M. Lutz, M. T. Graham, A. Hafner, and E. M. T. Puccio

Subjects
Physics, 010308 nuclear & particles physics, 0103 physical sciences, State (functional analysis), Atomic physics, Radiation, 010306 general physics, 01 natural sciences
Published
2017
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46. Head-on collision between single- and multi-soliton heavy ion acoustic waves in multi-ion plasmas

Author

M. S. Alam and Mamunur Rashid Talukder

Subjects
010302 applied physics, Physics, Plasma parameters, Electron, Acoustic wave, Plasma, Condensed Matter Physics, 01 natural sciences, 010305 fluids & plasmas, Ion, Nonlinear Sciences::Exactly Solvable and Integrable Systems, Physics::Plasma Physics, 0103 physical sciences, Phase velocity, Atomic physics, Adiabatic process, Korteweg–de Vries equation, Nonlinear Sciences::Pattern Formation and Solitons
Abstract

Head-on collisions among the single-and multi-soliton's heavy ion acoustic waves (HIAWs) of multi-ion plasma are studied. The plasma consists of adiabatic positively charged inertial heavy ions, Boltzmann energy distributed light ions and kappa energy distributed electrons. The extended poincare-Lighthill-Kuo (ePLK) method is applied for the derivation of two-sided Korteweg–de Vries (KdV) equations (KdVEs). The KdV single-soliton solutions (KdVSSs) are determined using the hyperbolic secant method and the KdV multi-soliton solutions (KdVMSs) are obtained using the Hirota method. The effects of superthermality of electrons, temperature ratios of electron to light ion and heavy ion to electron, and the density ratio of electron to heavy ion on phase shifts are investigated for the head-on collisions between two-soliton HIAWs. The effects of plasma parameters on angular frequency, phase speed, production of multi-soliton structures, and the head-on collisions among single-, double-, triple-, quadruple-, and quintuple-solitons are also studied.

Published
2019
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47. Time-integrated luminosity recorded by the BABARdetector at the PEP-IIe+e- collider

Author

M. J. Lewczuk, E. A. Kravchenko, T. Lueck, Gabriele Simi, C. L. Davis, Crisostomo Sciacca, D. Aston, R. Gamet, A. M. Eisner, J. L. Ritchie, R. Y. So, R. Andreassen, V. Prasad, G. Hamel de Monchenault, A. P. Wagner, Mauro Morandin, J. Ocariz, M. V. Purohit, Sw. Banerjee, J. Albert, M. A. Mazzoni, G. Wormser, M. Wittgen, G. Lynch, P. Patteri, Peter S. Kim, T. Schroeder, J. W. Gary, W. Dunwoodie, S. M. Spanier, E. Behn, Douglas Wright, M. L. Kocian, B. Bhuyan, R. Cheaib, L. Piemontese, R. F. Schwitters, Marcello Rotondo, M. Sigamani, B. G. Fulsom, Jose F Benitez, I. M. Peruzzi, A. Stocchi, Bruce Schumm, James R. Wilson, E. Prencipe, X. Nguyen, Andrei Gritsan, Claudio Campagnari, E. Gabathuler, W. R. Innes, F. C. Porter, J. M. LoSecco, O. Hamon, A. Roodman, L. M. Cremaldi, Simon Akar, S. Zambito, G. Onorato, A. Cervelli, William T. Ford, H. Briand, R. Godang, V. E. Blinov, D. J. Asgeirsson, B. C. Wray, N. B. Sinev, P. Ongmongkolkul, A. N. Yushkov, A. M. Ruland, F. Forti, H. L. Lynch, M. Verderi, Heiko Lacker, D. Su, H. A. Neal, T. Pulliam, Roland Waldi, F. Ferroni, S. I. Serednyakov, F. Bianchi, D. Monorchio, C. Voß, A. E. Rubin, E. Guido, Enrico Robutti, M. Piccolo, G. Raven, E. Grauges, J. P. Burke, A. Oyanguren, J. R. Fry, G. R. Bonneaud, U. Mallik, Dmytro Kovalskyi, G. J. King, J. J. Walsh, D. R. Peimer, G. Batignani, Sridhara Dasu, C. H. Cheng, P. D. Dauncey, A. G. Denig, J. E. Brau, M. K. Sullivan, M. D. Sokoloff, A. J. Martinez, J. P. Lees, S. Sitt, P. J. Clark, T. S. Miyashita, P. R. Burchat, Nicola Neri, M. Mandelkern, D. W. G. S. Leith, M. Gaspero, A. M. Lutz, R. Calabrese, C. Touramanis, A. Adametz, Paul Fraser Harrison, R. de Sangro, E. Ben-Haim, D. M. Strom, R. Cenci, G. Cibinetto, Hossain Ahmed, Chunhui Chen, W. J. Wisniewski, R. Stroili, G. M. Vitug, T. Hartmann, A. R. Buzykaev, O. Grünberg, M. Carpinelli, P. M. Patel, P. Lewis, G. Eigen, M. R. Monge, P. C. Bloom, Yu. G. Kolomensky, C. Dallapiccola, A. Zallo, D. Lindemann, B. Echenard, D. Bernard, B. Spaan, Stephen Robert Wagner, W. H. Toki, T. Leddig, G. Calderini, D. H. Wright, Thomas Latham, H. R. Band, D. Dujmic, C. Patrignani, Z. C. Huard, K. R. Schubert, Elisa Manoni, W. S. Lockman, M. Fritsch, S. Playfer, J. Chauveau, P. Taras, E. P. Solodov, V. Tisserand, R. Gorodeisky, M. Simard, D. A. Roberts, S. Passaggio, A. A. Salnikov, A. Calcaterra, Eleonora Luppi, M. R. Convery, W. Gradl, W. Park, A. Perez, L. Lanceri, M. T. Graham, D. Bettoni, Alberto Lusiani, I. Garzia, Christopher West, G. Grosdidier, C. Angelini, J. P. Coleman, Yu I. Skovpen, Sau Lan Wu, Marco Bomben, A. Hafner, G. De Nardo, K. Yu Todyshev, M. H. Schune, G. Sciolla, F. Anulli, B. Hamilton, M. Ebert, Colin Jessop, A. Palano, U. Uwer, Biplab Dey, R. C. Field, T. S. Mattison, Alessandro Gaz, G. Finocchiaro, V. Luth, E. M. T. Puccio, P. Biassoni, G. Casarosa, M. L. Perl, Fergus Wilson, R. Prepost, V. Santoro, C. Hast, D. J. Lange, G. Piredda, F. Simonetto, P. Sonnek, R. H. Schindler, Matteo Rama, Abner Soffer, S. H. Robertson, Joseph Izen, M. Morii, Stephen Sekula, Ch Yèche, S. Prell, T. J. Gershon, Herbert Koch, E. O. Olaiya, V. B. Golubev, B. Lindquist, M. S. Alam, James H Cochran, David Hutchcroft, A. Snyder, V. Poireau, Marcello Giorgi, S. Luitz, X. C. Lou, Florian Urs Bernlochner, D. Lopes Pegna, A. Khan, V. P. Druzhinin, C. Bozzi, K. Griessinger, I. M. Nugent, N. Gagliardi, D. B. MacFarlane, F. Palombo, H. W. Wulsin, D. S. Chao, D. N. Brown, Weitao Wang, J. Dorfan, Brian Meadows, C. Bünger, R. Frey, M. Davier, M. H. Kelsey, R. Baldini-Ferroli, D. Kirkby, J. A. McKenna, B. Oberhof, T. M. Hong, G. Vasseur, K. T. Flood, V. Ziegler, K. Honscheid, James D. Olsen, R. Kroeger, R. Sacco, A. Jawahery, B. N. Ratcliff, G. Rizzo, E. Feltresi, A. P. Onuchin, M. Posocco, R. Contri, L. T. Kerth, Alessandro Rossi, R. Schwierz, C. Hearty, Ph Leruste, A. J.S. Smith, N. Arnaud, M. Lo Vetere, D. J. Summers, W. T. Meyer, R. J. Sobie, L. Vitale, F. Martinez-Vidal, Dominik Müller, N. Tasneem, S. Pacetti, R. Cowan, S. Bettarini, M. Bellis, Aidan Randle-Conde, George Lafferty, R. Faccini, M. Franco Sevilla, G. P. Dubois-Felsmann, R. Ayad, Y. B. Pan, R. Kowalewski, A. Y. Rakitin, S. Nelson, Denis Derkach, Maurizio Biasini, B. Malaescu, Owen Rosser Long, A. Seiden, J. A. Ernst, L. Sun, Adrian John Bevan, F. Ferrarotto, A. J. Lankford, F. Le Diberder, E. Torrence, J. D. Richman, Pablo Villanueva-Perez, D. J. Bard, D. G. Hitlin, G. A. Cowan, J. Va’vra, D. Gamba, Eugenio Paoloni, N. Guttman, B. Stugu, G. Marchiori, Roger Barlow, Martino Margoni, R. M. White, C. Cartaro, L. Li Gioi, P. Roudeau, A. M. Gabareen, Tim Adye, R. D. Kass, E. Fioravanti, H. H. F. Choi, S. Emery, Maurizio Martinelli, J. M. Roney, J. G. Smith, F. Di Lodovico, D. J. Payne, and U. Nauenberg

Subjects
Physics, Nuclear and High Energy Physics, Particle physics, Photon, 010308 nuclear & particles physics, Electron–positron annihilation, Detector, BaBar experiment, Resonance, 01 natural sciences, Nuclear physics, 0103 physical sciences, 010306 general physics, Instrumentation
Abstract

We describe a measurement of the time-integrated luminosity of the data collected by the BABAR experiment at the PEP-II asymmetric-energy e^+e^- collider at the ϒ(4S), ϒ(3S), and ϒ(2S) resonances and in a continuum region below each resonance. We measure the time-integrated luminosity by counting e^+e^-→e^+e^- and (for the ϒ(4S) only) e^+e^-→μ^+μ^- candidate events, allowing additional photons in the final state. We use data-corrected simulation to determine the cross-sections and reconstruction efficiencies for these processes, as well as the major backgrounds. Due to the large cross-sections of e^+e^-→e^+e^- and e^+e^-→μ^+μ^-, the statistical uncertainties of the measurement are substantially smaller than the systematic uncertainties. The dominant systematic uncertainties are due to observed differences between data and simulation, as well as uncertainties on the cross-sections. For data collected on the ϒ(3S) and ϒ(2S) resonances, an additional uncertainty arises due to ϒ→e^+e^-X background. For data collected off the ϒ resonances, we estimate an additional uncertainty due to time dependent efficiency variations, which can affect the short off-resonance runs. The relative uncertainties on the luminosities of the on-resonance (off-resonance) samples are 0.43% (0.43%) for the ϒ(4S), 0.58% (0.72%) for the ϒ(3S), and 0.68% (0.88%) for the ϒ(2S).

Published
2013
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48. Search for displaced muonic lepton jets from light Higgs boson decay in proton–proton collisions at s=7 TeV with the ATLAS detector

Author

Xuai Zhuang, Samira Hassani, C. Da Via, J. Boek, Gregor Kasieczka, G. Bruni, Stefanie Adomeit, D. Liu, J. Keung, F. Etienne, Bellisario Esposito, G. Usai, B. Zabinski, Alexandra Tudorache, B. Butler, J. Hoffman, Frank Siegert, M. C. Tamsett, P. P. Allport, F. Koetsveld, T. Perez Cavalcanti, G. Zevi della Porta, K. Korcyl, Michele Pinamonti, Volker Büscher, J. L. Holzbauer, M. Hauschild, W. Wiedenmann, A. Wilson, Tancredi Carli, Roberto Cardarelli, C. García, Bruno Galhardo, E. S. Kuwertz, Remi Lafaye, C. Mattravers, S. Cole, E. Devetak, Elliot Hughes, K. Whalen, F. Garberson, V. Perez Reale, P. Weigell, U. K. Yang, C. Cuenca Almenar, D. Paredes Hernandez, Peter Jenni, I. Chalupkova, G. Lenzen, C. Conta, A. Krasznahorkay, Gideon Bella, M. Strang, B. A. Schumm, L. Liu, D. Fassouliotis, Rohin Narayan, E. Perez Codina, S. Mahmoud, S. J. Wollstadt, Jean-Francois Grivaz, M. C. Hodgkinson, Lucio Cerrito, J. Colas, E. Paganis, Julien Maurer, H. J. Burckhart, R. D. Harrington, Si Xie, M. Lokajicek, Manuela Venturi, W. Lampl, E. B. Klinkby, I. Turk Cakir, Tomoe Kishimoto, T. Nattermann, R. Piegaia, D. Caforio, C. L. Lampen, Armin Michael Nairz, E. Benhar Noccioli, E. Williams, F. Crescioli, V. Vacek, James Shank, Christian Weiser, Paolo Laurelli, Barbara Liberti, Philippe Mermod, N. Benekos, L. E. Price, Jan Andre Stillings, M. Villa, J. T. Childers, J. Dodd, Veronique Boisvert, G. Darbo, W. Ji, K. Cranmer, L. Mendoza Navas, Maurice Garcia-Sciveres, S. Bahinipati, A. DʼOrazio, M. Atkinson, B. Gibbard, E. W. Varnes, P. de Jong, T. Kanno, P. Radloff, Vincent Hedberg, D. O. Savu, L. Serkin, Yasuyuki Okumura, M. Mechtel, Kunihiro Nagano, T. Yamazaki, Yury Smirnov, N. Massol, G. V. Ybeles Smit, M. Teinturier, C. T. Potter, Ludovico Pontecorvo, N. Amram, A. Borisov, Robert Clarke, K. Benslama, M. T. Dova, P. S. Wells, M. A. Pleier, P. S. Mangeard, F. M. Brochu, Flera Rizatdinova, W. Kozanecki, T. Loddenkoetter, O. Rosenthal, Imma Riu, J. Mechnich, C. H. Wang, Valerio Ippolito, E. A. Ouellette, R. Simoniello, S. Nemecek, Gabriella Gaudio, P. Nemethy, C. Del Papa, S. Eckweiler, A. Napier, B. Caron, J. Idarraga, D. Roda Dos Santos, C. Zeitnitz, A. Palma, M. A. Dufour, A. T. Watson, J. Grosse-Knetter, G. Jones, Yoichi Ikegami, S. Kortner, C. Suhr, J. Odier, J. A. Gray, S. White, M. Schernau, V. Kus, Thomas Müller, Xiaohu Sun, Vadim Bednyakov, M. R. Sutton, M. Yamada, R. Spiwoks, Rainer Bartoldus, P. Hansson, Daniel Muenstermann, S. Patricelli, F. Vives Vaque, O. Simard, F. Pastore, M. Keil, Timothy Knight Nelson, Marianna Testa, Mauro Citterio, C. Topfel, Alexander Cheplakov, S. P. Baranov, S. R. Hou, S. Errede, Mossadek Talby, Evgenia Panagiotopoulou, B. Demirkoz, L. N. Smirnova, Andrzej Olszewski, V. Bartsch, A. Barbaro Galtieri, R. St. Denis, W. Bhimji, S. Bethke, M. Lungwitz, Graeme Stewart, M. He, M. Vanadia, Mattias Ellert, H. Wellenstein, W. J. Murray, A. Beddall, C. Lapoire, D. M. Rebuzzi, Diane Cinca, T. J. Neep, Vladimir Nikolaenko, Sally Seidel, V. A. Kramarenko, Lydia Iconomidou-Fayard, Martin Johannes Schultens, Mariya Shiyakova, Danilo Giugni, Otmar Biebel, S. I. Buda, K. W. McFarlane, M. Werth, S. H. Robertson, A. Penson, Nikola Makovec, Gerjan Bobbink, M. Donadelli, Y. Suzuki, J. L. Lane, Stephen Burke, M. Goebel, W. Taylor, Pierre-Antoine Delsart, Patrick Fassnacht, I. Ludwig, A. D. Doxiadis, A. V. Akimov, M. Dwuznik, D. Fellmann, A. Nikiforov, W. Ehrenfeld, E. Nurse, P. M. Tuts, A. Gaponenko, D. A. A. Geerts, D. van der Ster, Donatella Cavalli, Y. Nagasaka, G. Siragusa, L. Aperio Bella, J. Tanaka, Y. Hernández Jiménez, M. A. Wildt, A. Petridis, N. S. Knecht, Karsten Köneke, E. von Toerne, Z. Czyczula, A. Onofre, A. I. Mincer, Nikolai Rusakovich, T. Mueller, C. J. Curtis, C. Xu, E. Berglund, G. H. Lewis, M. I. Scherzer, O. Jinnouchi, V. Khovanskiy, J. Yu, S. Viel, A. Gibson, S. A. Olivares Pino, Shih-Chieh Hsu, Gianluca Alimonti, Rainer Stamen, M. Schmitz, Christos Anastopoulos, S. Jakobsen, M. Neumann, Kevin M. Smith, Arthur Moraes, E. Graziani, Lucia Zanello, C. Biscarat, I. Gough Eschrich, D. Casadei, Andre Schoening, Barry King, G. F. Moorhead, F. Alessandria, C. M. Hawkes, N. Grau, A. K. Ciftci, A. Christov, Z. Zhao, Sigve Haug, Sergio Grancagnolo, Miriam Watson, Emmanuel Monnier, L. R. Flores Castillo, P. Federic, Kathy Pommès, Paolo Bagnaia, K. Chan, Mark Owen, A. T. H. Arce, M. Benoit, Zach Marshall, Nuno Filipe Castro, K. De, I. A. Christidi, V. Cindro, K. Tani, Douglas Schaefer, Alex Martyniuk, Marie-Hélène Genest, C. Rudolph, M. J. Oreglia, Arnaud Ferrari, W. Liebig, T. Vu Anh, G. Volpini, Shigeru Odaka, H. von Radziewski, U. Blumenschein, C. Dionisi, Elisabeth Petit, I. I. Tsukerman, Dan Pantea, Norbert Wermes, C. Belanger-Champagne, Marjorie Shapiro, Uli Schäfer, Soshi Tsuno, G. N. Taylor, J. Albert, Reyhaneh Rezvani, D. Jennens, T. Kawamoto, Frank Seifert, R. Engelmann, S. Brunet, M. Heller, O. Vitells, M. Ouchrif, Givi Sekhniaidze, Tomer Volansky, A. Di Simone, Jan Godlewski, Tracey Berry, E. Dawe, K. Toms, A. Vartapetian, F. Gianotti, A. Zaytsev, Ryan Reece, S. Albrand, G. L. Darlea, B. M. Waugh, Laura Gonella, Alan Poppleton, P. Chang, K. Ellis, V. Solovyev, D. Axen, A. E. Nuncio-Quiroz, D. Tardif, D. Kuhn, Chris Hays, D. M. Seliverstov, Marina Cobal, I. M. Gregor, Jiri Masik, Lawrence Lee, H. Merritt, P. Buchholz, Olivier Arnaez, Tim Martin, H. Fox, D. Hellmich, Tae Min Hong, H. Peng, Ossama AbouZeid, A. Quadt, M. Limper, A. R. Davison, D. Pelikan, Oleg Bulekov, D. Lissauer, A. La Rosa, A. Tonoyan, P. Sinervo, Y. Kulchitsky, T. C. Rave, F. Dydak, E. Lund, J. Schwindling, Stephen Watts, Franz E. Bauer, J. Farley, B. Kaplan, F. Tarrade, Valerio Bortolotto, S. Pataraia, Evgeniy Khramov, F. Derue, S. Gozpinar, Benedetto Gorini, David Lynn, C. Maiani, Sebastien Binet, Christoph Amelung, G. Watts, O. Brandt, Paolo Iengo, Helio Takai, Jun Wakabayashi, Vladimir Sulin, A. Meade, Christopher Bee, Stefano Veneziano, M. P. Giordani, I. N. Potrap, Harinder Singh Bawa, C. Hensel, K. Gellerstedt, S. Owen, B. Chapleau, D. Banfi, Didier Ferrere, Odette Benary, Marcus Morgenstern, Mihai Caprini, Trisha Farooque, Tobias Kruker, M. Gouighri, D. Iliadis, Philippe Calfayan, F. E. Taylor, S. A. Cetin, Theodoros Alexopoulos, Martin Tripiana, M. Sosebee, A. Roe, A. Ferrer, E. Romero Adam, H. Garitaonandia, F. G. Oakham, G. Negri, R. M. Jungst, Alessandra Forti, J. Fuster, A. Seiden, P. Loch, Rosemarie Aben, A. Kupco, S. Martin-Haugh, Naoki Kimura, A. E. Kiryunin, Paolo Francavilla, Andreas W. W. Ludwig, F. Luehring, B. H. Smart, M. Tatarkhanov, S. Swedish, T. Wang, A. Gemmell, Tord Ekelof, K. Leonhardt, J. Sodomka, L. Masetti, Y. Tayalati, Y. F. Ryabov, X. Espinal Curull, E. L. Barberio, Doris Chromek-Burckhart, C. Heller, Maria Rescigno, M. J. Shochet, Alexandre Rozanov, Claudio Santoni, J. A. Strong, I. Wilhelm, A. Lipniacka, Georges Aad, J. Zhong, J. Katzy, Francesco Ragusa, A. Chilingarov, M. Flechl, Hiroshi Sakamoto, C. Santamarina Rios, J. Bouchami, R. Dhullipudi, L. Nodulman, D. Derendarz, Yona Oren, Benedetto Giacobbe, J. Qian, J. Ginzburg, Reisaburo Tanaka, Livio Mapelli, Guido Volpi, N. Davidson, B. Dechenaux, Dilip Jana, S. Poddar, S. Spagnolo, R. J. Sobie, R. Konoplich, F. Tian, G. Avolio, A. Di Girolamo, P. Stavina, Jochen Dingfelder, Paolo Morettini, J. A. Mcfayden, E. Cheu, J. Z. Will, J. Antos, M. A. Parker, G. Azuelos, A. Rose, Serhat Istin, P. Strachota, R. Moles-Valls, Elvira Rossi, Joost Vossebeld, M. Turala, F. Fassi, R. Caminal Armadans, Luc Goossens, Matthias Wittgen, A. Blondel, Stefanos Leontsinis, M. Holder, V. Sopko, D. Harper, A. Succurro, Elliot Lipeles, L. Bugge, J. E. Brau, H. Ghazlane, Till Eifert, J. R. Batley, Brian Petersen, T. Delemontex, Brian Walsh, George Redlinger, E. Ptacek, D. Hayden, Ehud Duchovni, R. Stroynowski, R. Froeschl, G. Eigen, J. Walder, T. Spreitzer, P. Grafström, M. Pohl, M. I. Pedraza Morales, Vakhtang Tsulaia, Attilio Picazio, Thorsten Wengler, M. Klemetti, Murdock Gilchriese, Ph. Schwemling, Caterina Doglioni, Stanislav Tokár, M. Jimenez Belenguer, Will Davey, R. Pezoa, I. Satsounkevitch, A. Pacheco Pages, S. Klous, M. Legendre, E. Auge, Konstantin Belotskiy, J. Mamuzic, G. Lehmann Miotto, M. Teixeira Dias Castanheira, R. D. Kass, M. Smizanska, Pa. Malecki, C. Collins-Tooth, W. G. Scott, M. Mosidze, E. Cogneras, Ph. Schune, Claudio Luci, I. Dolenc, D. Short, B. Laforge, N. Sasao, M. S. Neubauer, Leszek Adamczyk, Andrea Sansoni, J. Poll, T. Burgess, Giuseppe Costa, P. Sherwood, M. Simonyan, J. Labbe, Matthias Klein, R. Giordano, Claudia Gemme, Michel Janus, Katsuo Tokushuku, A. J. Armbruster, T. Jakoubek, Yasuo Doi, Francis Anghinolfi, Monika Wielers, M. Tyndel, Simonetta Gentile, J. Moss, Andreas Battaglia, Vincent Garonne, Jun Guo, Osamu Sasaki, S. George, R. Camacho Toro, C. Bacci, H. Kroha, Adrian Chitan, Sandro Palestini, Frank Fiedler, Giovanni Maccarrone, Francois Touchard, J. Olszowska, R. K. Daya-Ishmukhametova, Itsuo Nakano, V. Ferrara, A. Macchiolo, Roberto Beccherle, M. Vos, V. Kouskoura, T. Davidek, B. Bittner, E. Torró Pastor, T. C. Meyer, S. Koenig, Giuseppe Iacobucci, Benjamin Trocmé, L. Labarga, Alison Lister, G. Cortiana, N. Ghodbane, S. Kluth, X. Ruan, J. Erdmann, K. Hamano, Michael Ernst, Raphael Vuillermet, Dusan Bruncko, M. Beimforde, M. Plamondon, Eric Lancon, D. Guest, S. Menke, Elena Plotnikova, Giorgi Arabidze, D. Sherman, J. Machado Miguens, J. Koll, M. Schram, Claire Malone, L. Y. Shan, A. De Salvo, Koji Terashi, T. P. A. Åkesson, J. Schovancova, T. Koffas, P. F. Klok, Shinichi Shimizu, Martine Bosman, G. G.G. Massaro, Sergio Gonzalez-Sevilla, J. Lundquist, Djamel Eddine Boumediene, Noam Hod, Anthony Keith Morley, Peter Wagner, F. Ahles, Manoj Jha, Jozsef Toth, V. J. Martin, Fairouz Malek, M. L. Andrieux, E. Kajomovitz, A. E. Barton, Kristin Lohwasser, T. Vazquez Schroeder, Cesare Bini, Laurent Vacavant, A. G. Goussiou, B. Lemmer, J. Haller, M. I. Gostkin, B. Maček, J. L. Pinfold, Giacinto Piacquadio, R. Van Der Leeuw, M. Düren, Giancarlo Spigo, S. P. Mc Kee, F. Bellina, Manuela Campanelli, M. Cascella, W. K. Brooks, S. Monzani, W. H. Bell, L. Tremblet, Nicolas Morange, M. Tsiakiris, C. M. Cuciuc, Michael Begel, L. Heelan, G. Sellers, N. M. Bolnet, Marcella Bona, J. Dolejsi, L. Di Ciaccio, Y. Fang, D. Lacour, Y. Yamazaki, B. Vachon, Stephen Hillier, A. Di Mattia, Luis Hervas, N. Möser, K. Dindar Yagci, R. R. Rios, Alexey Talyshev, D. Whittington, A. DellʼAcqua, Pamela Ferrari, D. C. Bailey, G. Anders, A. Antonaki, A. Belloni, C. Wasicki, Marco Bruschi, Paul Tipton, H. Torres, Daniel Silverstein, R. de Asmundis, K. Mönig, David Francis, M. Dobbs, Marcello Fanti, T. Hayakawa, Oleg Zenin, J. A. Parsons, Stefan Koperny, Julie Kirk, Sebastian Grinstein, S. 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Hawkins, Peter Krieger, G. Rivoltella, Mika Huhtinen, Antonio Policicchio, D. Chakraborty, L. Gauthier, D. E. Ferreira de Lima, G. Tzanakos, Dominique Pallin, Paul Jackson, M. Ahsan, Rachel Maria Avramidou, T. Gadfort, J. B. Liu, Y. Unno, G. H. A. Viehhauser, Clemens Lange, T. Göpfert, I. Massa, G. Calderini, A. Coccaro, Shuwei Ye, P. H. Hansen, Marzio Nessi, A. B. Fenyuk, Luc Poggioli, C. P. Paleari, P. Staroba, Ljiljana Morvaj, I. Jen-La Plante, Andrea Bocci, Nikiforos Nikiforou, S. Hasegawa, M. Seman, Marco Barbero, T. Sykora, J. Zhu, T. Schwindt, Iro Koletsou, S. Gonzalez, C. M. Lester, Gabriella Cataldi, R. Apolle, H. S. Subramania, I. Aracena, R. Richter, Z. Yang, Matteo Cavalli-Sforza, Alevtina Shmeleva, G. Gorfine, G. J. Besjes, E. Eisenhandler, R. J. Teuscher, Song-Ming Wang, Jana Schaarschmidt, B. Osculati, D. P. C. Sankey, Raymond Veness, L. Lambourne, Kendall Reeves, E. Acerbi, M. Raas, F. Hahn, T. Kuhl, Alberto Aloisio, Mihai Ciubancan, V. B. Bobrovnikov, Markus Cristinziani, B. K. Wosiek, Yoichi Ninomiya, Marc Weber, G. Sartisohn, S. Pagan Griso, A. M. Cooper-Sarkar, M. Cooke, J. M. Seixas, G. A. Hare, M. Vranjes Milosavljevic, B. R. Mellado Garcia, M. Rose, K. A. Johns, A. Koutsman, Alexander Milov, Tobias Golling, S. Haas, S. Hamilton, T. Doherty, K. K. Gan, J. R. Lessard, S. Prasad, L. Roos, P. Nevski, John Morris, I. Rubinskiy, D. Capriotti, N. Semprini-Cesari, Ketevi Assamagan, Juergen Thomas, F. Kohn, Nicolas Ellis, Guido Ciapetti, S. Di Luise, M. Kataoka, Yi Chen, Nimrod Taiblum, F. L. Linde, Bernhard Meirose, L. S. Ancu, Heiko Lacker, Z. Meng, E. Solfaroli Camillocci, Teresa Lenz, T. Cuhadar Donszelmann, A. R. Weidberg, L. Fiorini, S. Kuday, Z. Weng, D. Pomeroy, Alberto Annovi, P. Jussel, F. Conventi, A. Phan, K. Kroeninger, Y. Benhammou, Evgueni Ladygin, M. Aurousseau, Pier-Olivier Deviveiros, E. Sedykh, Y. Silver, C. J. S. Young, Masato Aoki, Veljko Radeka, R. Kehoe, C. Maidantchik, Georgios Tsipolitis, Rinat Fakhrutdinov, Ariel Schwartzman, T. Sumida, Y. A. Kurochkin, D. Ludwig, C. J. Oram, T. Shin, A. Filipčič, Eugene E. Schmidt, Nansi Andari, S. Tanaka, Timothy Andeen, V. OʼShea, Andrey Soukharev, J. Wetter, R. Van Berg, Jieh-Wen Tsung, Alessandro Cerri, Philip Bechtle, Lea Caminada, A. C. König, D. Joffe, Frank Ellinghaus, Giovanni Crosetti, Claire Gwenlan, P. V. Tsiareshka, Catrin Bernius, J. Krstic, S. Kohlmann, J. S. Keller, R. K. Keeler, Y. Jiang, Stefan Simion, I. Torchiani, P. Steinbach, T. Harenberg, Philip Phillips, A. F. Saavedra, S. J. Sekula, Jochen Schieck, M. Dam, S. Guindon, J. Ludwig, S. O. Holmgren, Mihail Chizhov, E. Pueschel, Marina Rotaru, N. Dressnandt, H. van der Graaf, Stephen Maxfield, Bruno Mansoulie, Paul Newman, S. Hillert, E. I. Rosenberg, M. El Kacimi, D. Petschull, C. Deluca, H. S. Lee, Francesco Lanni, D. Y. Bardin, G. M. Kolachev, S. Timoshenko, R. Seuster, Ilya Korolkov, J. Penwell, M. C. Conidi, Zhiqing Zhang, J. Mitrevski, Alexei Klimentov, G. A. Rosenbaum, J. P. Ottersbach, T. Fonseca Martin, Helena Santos, W. B. Quayle, M. Schwoerer, Xin Wu, M. Agustoni, Abdenour Lounis, Basil Schneider, R. Mehdiyev, Antonio Sidoti, Ian Hinchliffe, J. Searcy, Patrick Czodrowski, R. Calkins, P. Matricon, Shikma Bressler, Iacopo Vivarelli, T. T. Voss, J. Purdham, R. S. B. King, S. Fleischmann, S. Campana, U. Mallik, S. C. Lee, Moritz Backes, S. DʼAuria, M. Tylmad, F. Rühr, V. Juranek, A. Trzupek, A. S. Randle-Conde, T. Theveneaux-Pelzer, J. Miao, L. Magnoni, Takahiko Kondo, M. Ridel, K. Augsten, Klaus Kurt Desch, Richard Nickerson, Y. Davygora, S. Marti-Garcia, Pai-hsien Jennifer Hsu, A. Taffard, Nazim Huseynov, V. I. Kolesnikov, Petre Dita, R. M. Neves, P. Haefner, Halina Bilokon, J. D. Price, S. Youssef, D. Ventura, X. Chen, S. Walch, T. Colombo, Evelyn Thomson, G. Palacino, J. J. Goodson, B. R. Ko, M. Aharrouche, Johannes Elmsheuser, G. Gagliardi, A. Polini, J. Goncalves Pinto Firmino Da Costa, Sergey Peleganchuk, Gaetano Barone, V. Boldea, T. Rador, J. P. Martin, Sarah Demers, Francisco Alonso, Arnaud Lucotte, Liza Mijović, B. DeWilde, M. Leyton, Andrew Mehta, Rosy Nicolaidou, M. I. Besana, Y. B. Pan, H. Boterenbrood, C. W. Loh, Dave Britton, J. E. Derkaoui, M. Myska, Alexander Khodinov, Matteo Negrini, D. De Pedis, V. Rossetti, Iwona Grabowska-Bold, G. Khoriauli, T. Lari, J. A. Benitez Garcia, S. Caughron, Michael Rijssenbeek, W. C. Wong, C. Fabre, E. Laisne, António Amorim, Laurent Duflot, R. Wall, M. Karagounis, K. J.C. Leney, T. Barber, G. Hughes, K. H. Hiller, D. Lopez Mateos, Tetsuro Mashimo, M. Kuna, M. Fraternali, A. Zoccoli, B. Martin, D. Schouten, V. Kartvelishvili, Shota Tsiskaridze, B. M. Salvachua Ferrando, M. Solar, M. A. Chelstowska, Diedi Hu, T. Moa, S. Haider, A. Chafaq, Vincenzo Canale, C. Debenedetti, J. Nadal, J. Sjölin, T. Dai, J. Cantero, S. Kalinin, David-leon Pohl, J. Kaplon, M. Suk, Rustem Ospanov, Claire Bourdarios, Sergey Panitkin, Todd Brian Huffman, Anna Mastroberardino, M. A. B. do Vale, Uta Klein, J. D. Chapman, Jiangyong Jia, B. Stugu, V. A. Mitsou, T. Kohriki, A. Antonov, F. Krejci, Helen Hayward, Takashi Yamanaka, P. M. Watkins, H. G. Sander, C. N. Booth, Richard Mount, V. Scharf, Joshua Kunkle, R. Wang, V. Chavda, Shaun Roe, M. Oliveira, Veysi Erkcan Ozcan, Vincenzo Izzo, N. Rompotis, Samuel Calvet, A. Vaniachine, N. C. Edwards, P. D. Thompson, J. Barreiro Guimarães da Costa, S. Kaneti, H. Brown, M. J. White, Benedict Allbrooke, Saminder Dhaliwal, G. Akimoto, Riccardo-Maria Bianchi, Joseph Izen, D. Zhang, J-P. Meyer, M. Mikestikova, D. Arutinov, Y. Wu, W. Lukas, Y. Bai, Michel Lefebvre, M. J. Fisher, M. Pecsy, D. Benchekroun, Louis Helary, B. Pinto, C. Glasman, P. Giovannini, M. S. Kayl, D. Zieminska, Andrew Pilkington, A. R. Gillman, B.J. OʼBrien, Bobby Samir Acharya, Bruno Lenzi, Carla Sbarra, A. White, O. Gutzwiller, D. Price, Ph. Schwegler, N. Orlando, Guillaume Unal, J. T. Linnemann, Daniela Salvatore, E. B. Diehl, D. Vladoiu, Ruslan Mashinistov, Quentin Buat, Alessandra Ciocio, K. Sliwa, D. R. Quarrie, L. Han, Prolay Mal, Tomiyoshi Haruyama, V. Lendermann, W. L. Ebenstein, Gabriella Pasztor, M. Hirose, Michel Raymond, T. A. Dietzsch, J. Dubbert, Leonardo Merola, P. Starovoitov, A. M. Litke, P. U. E. Onyisi, David Yu, S. Michal, E. Banas, T. Zhao, John Stupak, Evgeny Starchenko, C. Padilla Aranda, D. Sampsonidis, Timothy Brooks, Arturo Sanchez, T. Jovin, Kenneth Wraight, P. K. Behera, M. Perantoni, C. De La Taille, Peter Wienemann, N. Krumnack, Javier Sánchez, A. Mayne, D. Hall, H. Li, S. M. Piec, Nicole Ruckstuhl, Michael Hance, Evgeny Shulga, A. J. Barr, R. R. Debbe, Thi Kieu Oanh Doan, H. Wang, G. Cattani, H. Takeda, Antonio Ereditato, Igor Aleksandrov, L. Micu, S. Yacoob, K. W. Glitza, Halina Abramowicz, D. Levin, S. Caron, S. Yu. Smirnov, J. Gunther, M. Ugland, M. J. Losty, A. De Santo, Liron Barak, C. Taylor, Alexander Undrus, Konstantinos Karakostas, Lorenzo Feligioni, V. A. Giakoumopoulou, Irinel Caprini, Z. Kohout, Tatsuya Masubuchi, Oliver Keith Baker, W. S. Lockman, Daniel Whiteson, H. Kurashige, S. Laplace, C. Dallapiccola, M. Vlasak, Dmitri Tsybychev, R. L. McCarthy, O. Røhne, E. Torrence, Bradley Cox, Vladimir Peshekhonov, S. Johnert, C. Schiavi, S. Aefsky, John Alison, D. della Volpe, M. Moreno Llácer, M. Kurata, C. Pahl, M. C. N. Fiolhais, Frank Winklmeier, F. Bucci, Z. Zinonos, M. Lehmacher, R. Caloi, Umar Gul, M. A. Alam, J. A. Klinger, A. M. Rahimi, M. Ibbotson, Christine Kourkoumelis, M. Rybar, D. Barberis, Pedro Jorge, Sarah Heim, Mauro Iodice, S. V. Mouraviev, C. Bohm, V. Grassi, Monica Dunford, Ch Geich-Gimbel, S. Bedikian, Andreas Salzburger, J. Maneira, P. Loscutoff, J. Virzi, Ruggero Turra, F. Corriveau, B. Martin dit Latour, D. Boscherini, Woiciech Fedorko, Dorothee Schaile, Claudia Bertella, Michael Boehler, Metin Arik, F. Safai Tehrani, S. Pospisil, V. O. Tikhomirov, M. Davies, Alexey Anisenkov, T. Nunnemann, K. Edmonds, G. Duckeck, B. Aubert, A. Mengarelli, Ian Brock, R. Di Nardo, P. Hodgson, E. V. Bouhova-Thacker, V. Andrei, Federica Legger, Clara Troncon, R. Kowalewski, F. Wicek, Lukasz Zwalinski, I. Stumer, T. Hrynʼova, G. W. Brandenburg, Masaharu Nomachi, Christoph Rembser, J. Mc Donald, L. Chikovani, A. A. Minaenko, Agnieszka Leyko, E. Badescu, F. Friedrich, A. Rimoldi, Bartosz Mindur, Antonio Baroncelli, Ulrich Landgraf, L. de Mora, H. Yamaguchi, F. Cerutti, D. Errede, M. Franchini, G. Nunes Hanninger, M. J. Costa, A. Tykhonov, J. Petersen, N. Vranjes, K. M. Mercurio, S. Nektarijevic, M. Morii, Ryo Nagai, F. Ould-Saada, B. Guo, Valerio Dao, B. G. Fulsom, Holger Schulz, M. Medinnis, T. Kubota, C. Pizio, Yang Gao, A. Ruiz-Martinez, M. Uhlenbrock, Y. V. Grishkevich, Andrea Favareto, Enrico Tassi, F. Salvatore, H. Liao, Scarlet Norberg, J. G. Rocha de Lima, V. A. Schegelsky, R. Di Sipio, D. H. Saxon, J. R. Goddard, J. Kvita, I. M. Trigger, N. I. Zimin, M. Hohlfeld, X. Portell Bueso, L. De Nooij, A. S. Kozhin, A. J. Lowe, T. G. McCarthy, Ralf Hertenberger, D. Côté, Irakli Minashvili, A. A. Abdelalim, V. Giangiobbe, M. L. Gonzalez Silva, D. Gillberg, X. Ju, M. Kuze, Y. Azuma, Frank Paige, Else Lytken, S. Goldfarb, F. Broggi, T. Mclaughlan, D. Xu, Amanda R. Vest, Speranza Falciano, G. D. Carrillo-Montoya, P. Bernat, E. van der Poel, E. Gorini, Uladzimir Kruchonak, Gideon Alexander, Cristian Stanescu, P. J. Bell, P. Branchini, Sw. Banerjee, Mikhail Mineev, Ovsat Abdinov, C. Fukunaga, V. Kaushik, M. Ishitsuka, A. Manousakis-Katsikakis, A. Staude, Danuta Kisielewska, Allan G Clark, Roger Moore, N. Zhou, S. González de la Hoz, B. Yabsley, K. Hanawa, Kirika Uchida, Tatsumi Koi, S. Yamamoto, Sabine Crépé-Renaudin, P. Waller, L. Živković, Emmanuel Busato, T. Buanes, P. Klimek, C. Roda, J. Valenta, A. Bogouch, S. Mättig, Valerie Susanne Lang, T. Varol, Fred Hartjes, J. Wotschack, B. Fatholahzadeh, Hans Krüger, U. Soldevila, Howard Gordon, K. E. Selbach, Yosuke Takubo, David Berge, J. A. Aguilar-Saavedra, M. Cirilli, Z. L. Ren, C. A. Jung, Michela Biglietti, Miroslav Havranek, Fabienne Ledroit-Guillon, Vadim Kantserov, C. Cowden, V. Zutshi, L. S. Gomez Fajardo, H. Czirr, J. F. Marchand, M. Mazur, D. Wendland, Massimiliano Bellomo, S. De Castro, Y. Rozen, H-C. Schultz-Coulon, Nicola Venturi, Sergey Burdin, Dmitry Emeliyanov, J. C. Clemens, Yasuhiro Makida, V. Radescu, Steve McMahon, Robert Gardner, Stefan Schlenker, C. Isaksson, R. Ueno, T. Naumann, Margret Fincke-Keeler, R. P. Thun, S. P. Denisov, S. Oda, C. P. Ward, M. A. Thomson, M. Henke, A. Brandt, M. Giunta, M. C. Vetterli, Martin Spousta, I. J. Watson, B. Resende, S. P. Bieniek, Iftach Sadeh, Giacomo Polesello, D. Tsionou, M. Y. Kazarinov, P. A. Gorbounov, M. Livan, T. Kluge, A. L. Read, F. Grancagnolo, Christoph Falk Anders, M. S. Alam, Martin Kocian, M. Nash, Giuseppe Francesco Tartarelli, J. Llorente Merino, S. P. Amor Dos Santos, M. Karnevskiy, V. Consorti, Cedric Serfon, Florencia Canelli, Dirk Zerwas, S. Pashapour, Aleandro Nisati, Beate Heinemann, I. Dawson, B. Lund-Jensen, K. Stoerig, E. K. U. Gross, U. De Sanctis, T. Slavicek, Göran Jarlskog, M. Fehling-Kaschek, L. A. Kogan, S. Xella, J. Griffiths, Valentina Tudorache, S. F. Brazzale, F. Barreiro, A. Gomes, Kirsten Tollefson, M. Mikuž, K. E. Johansson, R. E. Blair, A. Dos Anjos, J. Ernwein, M. Battistin, Yousuke Kataoka, O. E. Vickey Boeriu, L. M. Mir, D. Goujdami, M. D. M. Capeans Garrido, P. Koevesarki, T. Beau, S. Pedraza Lopez, Marc Escalier, F. Podlyski, P. Schacht, G. E. Pospelov, W. Fernando, S. Franz, H. Duran Yildiz, Z. V. Krumshteyn, Kohei Yorita, P. Ruzicka, A. Bertin, Andree Robichaud-Veronneau, T. Sarangi, V. V. Zmouchko, Alfred Goshaw, Francesco Michelangelo Giorgi, L. Rinaldi, K. Tackmann, E. Sarkisyan-Grinbaum, E. Reinherz-Aronis, Federico Meloni, G. Colon, Andrea Catinaccio, W. Buttinger, A. G. Myagkov, B. H. Samset, J. A. Bogaerts, Timothy Barklow, J. Salt, N. Krieger, E. Oliver Garcia, Renat Sadykov, Rudiger Voss, Louise Skinnari, J. Love, S. Chen, K. Grybel, Akira Yamamoto, S. Thoma, I. Reisinger, H. Ten Kate, J. Ye, Simona Serena Bocchetta, J. E.M. Robinson, T. Ženiš, J. Rothberg, F. M. Newcomer, G. Chiefari, V. Castillo Gimenez, David Salek, Francesco Spanò, D. Robinson, S. Kreiss, U. Bratzler, O. M. Kind, A. Poblaguev, Giuseppe Salamanna, K. J. Anderson, L. Hooft van Huysduynen, Zuzana Rurikova, Alexander Bogdanchikov, T. Abajyan, M. Sandhoff, Anne Kathrin Becker, J. Solc, Takuya Nobe, S. Strandberg, R. Mameghani, O. Le Dortz, L. L. Ma, W. Mohr, J. B. De Vivie De Regie, Jan Kretzschmar, D. S. Damiani, K. Prokofiev, D. Wicke, A. Warburton, Eleni Mountricha, T. Barillari, Grigori Rybkin, B. Gaur, V. Nguyen Thi Hong, Carolina Gabaldon, O. M. Harris, R. Mackeprang, A. Harvey, V. Bansal, M. Johansen, S. W. Snow, E. Davies, J. de Graat, G. Mirabelli, Henso Abreu, A. S. Cerqueira, R. E. Long, S. Horner, M. Bianco, N. Soni, R. J. Hawkings, A. Hoummada, Lj. Simic, A. Hamilton, A. Shibata, T. Kittelmann, William Trischuk, A. Passeri, T. Djobava, Oxana Smirnova, T. Todorov, A. Renaud, Konstantinos Bachas, P. Giusti, R. D. Schamberger, Malte Backhaus, Pascal Pralavorio, Lamberto Luminari, Dong Su, I. Vichou, S. Rolli, R. Zaidan, M. Fiascaris, J. A. Frost, Kristian Peters, K. Lie, Gabriella Sciolla, Y. Munwes, G. Fischer, Louis Fayard, K. Perez, G. Zobernig, L. A. Thomsen, G. Unel, P. Lichard, C. P. Marino, F. Marchese, Valery Pozdnyakov, V. Gratchev, Jean-Francois Laporte, J. Lundberg, E. Carquin, C. Schroeder, Fabrice Hubaut, P. Pais, C. G. Lester, S. Kuleshov, Kazunori Hanagaki, G. Nanava, K. Kiuchi, L. Fabbri, C. A. Solans, Marcello Borri, Charles Leggett, Fabian Huegging, A. M. Zaitsev, M. Mazzanti, A. A. Carter, M. Miñano Moya, Giacomo Artoni, R. C.W. Henderson, V. I. Rud, James Howarth, S. Sultansoy, V. Zhuravlov, Stephen Haywood, Sotirios Vlachos, A. Redelbach, David Miller, A. Ochi, Vladimir Vinogradov, W. Iwanski, Gabriel Stoicea, R. Staszewski, Marcella Capua, Alessandra Doria, and E. Chareyre

Subjects
Physics, Nuclear and High Energy Physics, Particle physics, Muon, Large Hadron Collider, 010308 nuclear & particles physics, Atlas detector, Astrophysics::High Energy Astrophysical Phenomena, 01 natural sciences, Collimated light, Nuclear physics, Massless particle, Hidden sector, 0103 physical sciences, Higgs boson, Physics::Accelerator Physics, High Energy Physics::Experiment, Nuclear Experiment, 010306 general physics, Lepton
Abstract

A search is performed for collimated muon pairs displaced from the primary vertex produced in the decay of long-lived neutral particles in proton-proton collisions at root s = 7 TeV centre-of-mass ...

Published
2013
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49. Search for B+→K+τ+τ− at the BaBar Experiment

Author

R. Calabrese, R. Faccini, F. Ferrarotto, A. J. Lankford, F. Le Diberder, R. Cenci, R. Sacco, A. Zallo, Elisa Manoni, D. Aston, Gabriele Simi, B. Echenard, M. Fritsch, C. L. Davis, G. A. Cowan, A. G. Denig, D. Bernard, M. T. Graham, Eleonora Luppi, J. L. Ritchie, S. I. Serednyakov, N. Tasneem, S. Martellotti, M. Carpinelli, I. M. Nugent, D. S. Chao, M. Davier, V. Poireau, M. Piccolo, G. Finocchiaro, T. Leddig, M. V. Purohit, Aidan Randle-Conde, I. M. Peruzzi, A. J.S. Smith, N. Arnaud, J. Albert, S. Bettarini, G. R. Bonneaud, S. Emery, G. Batignani, Simon Akar, W. R. Innes, George Lafferty, B. Oberhof, R. F. Schwitters, A. M. Rossi, A. Filippi, Joseph Izen, K. Yu. Todyshev, A. Roodman, R. Y. So, E. Fioravanti, Roland Waldi, F. Ferroni, Alessandro Pilloni, B. Bhuyan, J. M. Roney, J. Dorfan, Abner Soffer, Paul Fraser Harrison, E. P. Solodov, T. S. Miyashita, Ju-Young Kim, E. Grauges, F. Simonetto, R. Cowan, F. Bianchi, Miriam Heß, A. Calcaterra, Stephen Robert Wagner, F. Forti, M. K. Sullivan, Mario Giorgi, A. Oyanguren, C. Cartaro, G. Raven, J. J. Walsh, S. Dittrich, M. Röhrken, D. R. Peimer, Giulia Casarosa, M. D. Sokoloff, G. Wormser, D. N. Brown, F. Di Lodovico, D. J. Payne, J. A. McKenna, P. R. Burchat, W. Dunwoodie, M. R. Convery, C. Bünger, J. A. Ernst, W. Gradl, E. Ben-Haim, L. Lanceri, D. W. G. S. Leith, Colin Jessop, R. Prepost, E. Paoloni, B. G. Pushpawela, C. H. Cheng, Timothy Gershon, Alberto Lusiani, H. A. Neal, X. C. Lou, R. Godang, R. de Sangro, M. Verderi, Biplab Dey, B. N. Ratcliff, Fergus Wilson, R. Gorodeisky, D. Gamba, D. A. Roberts, G. Calderini, P. Taras, C. Touramanis, T. Schroeder, U. Mallik, G. Vasseur, K. T. Flood, J. Chauveau, F. De Mori, A. R. Buzykaev, M. S. Alam, Roger Barlow, Martino Margoni, B. G. Fulsom, A. Beaulieu, P. C. Kim, N. Guttman, G. De Nardo, Sau Lan Wu, A. Hafner, E. M. T. Puccio, A. Jawahery, R. Kowalewski, Yu. I. Skovpen, G. Cibinetto, C. Hearty, G. Marchiori, Andrei Gritsan, D. J. Summers, Florian Urs Bernlochner, F. Palombo, T. Lueck, K. R. Schubert, M. Ebert, M. Bomben, Maurizio Biasini, L. Vitale, F. Martinez-Vidal, Marcello Rotondo, Dominik Müller, C. H. Chen, Stephen Sekula, Owen Rosser Long, H. Ahmed, S. M. Spanier, Vladimir Blinov, L. M. Cremaldi, J. P. Coleman, J. R. Smith, A. P. Onuchin, L. Sun, Adrian John Bevan, C. Bozzi, D. G. Hitlin, R. C. Field, Matteo Rama, Nicola Neri, S. Prell, K. Honscheid, M. Bellis, Tim Adye, R. D. Kass, T. S. Mattison, James H Cochran, M. Posocco, V. P. Druzhinin, C. Hast, D. J. Lange, G. Piredda, R. Stroili, Marcin Chrzaszcz, James R. Wilson, G. Eigen, A. M. Lutz, S. Passaggio, V. B. Golubev, A. Palano, David Hutchcroft, S. Luitz, P. Patteri, J. Va’vra, D. B. MacFarlane, G. Rizzo, J. P. Lees, V. Santoro, O. Grünberg, Christian Voß, Yu G. Kolomensky, P. Ongmongkolkul, E. A. Kravchenko, Crisostomo Sciacca, W. J. Wisniewski, G. J. King, J. Ocariz, J. W. Gary, R. Cheaib, J. M. LoSecco, S. H. Robertson, Herbert Koch, K. Griessinger, Brian Meadows, Z. C. Huard, W. Panduro Vazquez, V. Luth, W. S. Lockman, F. Anulli, Alessandro Gaz, A. M. Eisner, Sw. Banerjee, D. Bettoni, I. Garzia, Thomas Latham, C. Patrignani, V. Tisserand, E. Gabathuler, F. C. Porter, and Douglas Wright

Subjects
Physics, Particle physics, Muon, Neutral current, 010308 nuclear & particles physics, Electron–positron annihilation, General Physics and Astronomy, BaBar experiment, 01 natural sciences, Nuclear physics, 0103 physical sciences, B meson, Neutrino, 010306 general physics, Energy (signal processing), Lepton
Abstract

We search for the rare flavor-changing neutral current process B^{+}→K^{+}τ^{+}τ^{-} using data from the BABAR experiment. The data sample, collected at the center-of-mass energy of the ϒ(4S) resonance, corresponds to a total integrated luminosity of 424 fb^{-1} and to 471×10^{6} BB[over ¯] pairs. We reconstruct one B meson, produced in the ϒ(4S)→B^{+}B^{-} decay, in one of many hadronic decay modes and search for activity compatible with a B^{+}→K^{+}τ^{+}τ^{-} decay in the rest of the event. Each τ lepton is required to decay leptonically into an electron or muon and neutrinos. Comparing the expected number of background events with the data sample after applying the selection criteria, we do not find evidence for a signal. The resulting upper limit, at the 90% confidence level, is B(B^{+}→K^{+}τ^{+}τ^{-})

Published
2017
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50. Search for new phenomena in the WW→lνl′ν′ final state in pp collisions at s=7TeV with the ATLAS detector

Author

M. Plamondon, Eric Lancon, D. Guest, Mohamed Ouchrif, F. Kohn, G. Rudolph, Silvia Franchino, A. De Santo, Stephen Hillier, Luis Hervas, D. Boscherini, N. Möser, G. Susinno, O. Le Dortz, S. M. Consonni, S. Ferrag, Francois Vazeille, M. Viti, Saverio D'Auria, E. Arik, Oliver Stelzer-Chilton, M. Nash, Olga Igonkina, H. Nilsen, P. Adragna, James Walder, B. Chapleau, R. Bartoldus, R. Asfandiyarov, Silvia Resconi, Tim Adye, Brian Walsh, George Redlinger, R. D. Kass, J. Deng, Zdenek Hubacek, C. Mora Herrera, Djamel Eddine Boumediene, B. Demirkoz, Moritz Backes, Noam Hod, R. Prabhu, Susanne Kuehn, Stephen Sekula, Xifeng Ruan, L. Batkova, I. Gough Eschrich, S. Tanaka, Nils Krumnack, D. Hayden, H. O. Ogren, Pavel Tsiareshka, Yona Oren, M. Pohl, J. A. Gray, H. Zhu, N. S. Knecht, Tapas Sarangi, Sofia Chouridou, Jason Nielsen, Armen Vartapetian, Uta Klein, Maria Smizanska, V. Arnal, Remi Lafaye, A. M. Cooper-Sarkar, B. Budick, Stefania Spagnolo, Anthony Keith Morley, Peter Wagner, F. Ahles, Nikiforos Nikiforou, C. Dallapiccola, Rinat Fakhrutdinov, C. Cuthbert, L. Mandelli, Josh Mcfayden, Ph. Schwemling, M. Werth, D. P. C. Sankey, Daniel Muenstermann, Raymond Veness, L. Mendoza Navas, Jozsef Toth, Elena Korolkova, S. H. Robertson, H. M. Braun, Hiroyuki Iwasaki, John-Bjarne Hansen, E. Le Guirriec, F. Vannucci, Clement Helsens, A. Pranko, N. Davidson, M. J. Fisher, Miguel Alfonso Oliveira, Shingo Kazama, H. Kagan, I. Massa, Domizia Orestano, Dominick Olivito, Karel Smolek, Werner Wiedenmann, Claudia Bertella, L. Duflot, L. Bugge, A. Do Valle Wemans, M. Strang, Olivier Arnaez, C. Dionisi, Thilo Pauly, M. J. Woudstra, W. S. Lockman, Hideki Okawa, Soumya Mohapatra, S. Behar Harpaz, M. Mazur, Alexander Mann, V. Chernyatin, M. P. Sanders, Tomoe Kishimoto, Hyun-Chul Kim, M. Karnevskiy, Hongbo Liao, Kristian Gregersen, L. Rosselet, Avi Gershon, A. Salamon, B. Sopko, A. I. Kononov, Gordon Watts, Stefan Valkar, A. Papadelis, Y. Kulchitsky, B. G. Pope, Anders Floderus, R. T. Chislett, Kate Shaw, Tomas Sykora, Valery Schegelsky, F. Garberson, V. Perez Reale, Daniel Fournier, Attilio Picazio, Thorsten Wengler, Matthias Klein, Alexey Talyshev, R. Giordano, Gabriella Pasztor, Michel Raymond, T. A. Dietzsch, Bruce Schumm, Leonardo Merola, Evgeniy Khramov, S. Gozpinar, M. Rescigno, Hiroshi Sakamoto, Z. Czyczula, Nikolai Rusakovich, T. Mueller, C. J. Curtis, Jochen Schieck, Carla Sbarra, L. E. Price, Masahiro Ikeno, S. Campana, Gerhard Brandt, R. Bruneliere, R. Duxfield, Y. Silver, B. J. O’Brien, Masato Aoki, Lorne Levinson, Trevor Vickey, Phillip Gutierrez, I. Wilhelm, Rachel Maria Avramidou, Song-Ming Wang, Jana Schaarschmidt, Arely Cortes-Gonzalez, Alexander Milov, F. Dinut, E. Castaneda-Miranda, J. Farley, Kevin Varvell, Harvey Jonathan Maddocks, Chris Hays, A. Gemmell, Tord Ekelof, Monica Verducci, Krzysztof Wozniak, Charles Taylor, A. G. Clark, P. Bernat, Andrea Dell'Acqua, S. Michal, Dmitri Tsybychev, R. L. McCarthy, Elliot Lipeles, Saleh Sultansoy, Antonio Salvucci, R. Tanaka, Ehud Duchovni, Vladimir Cindro, Pierre-Hugues Beauchemin, G. Volpi, Aaron James Armbruster, S. Koenig, R. P. Thun, Giuseppe Iacobucci, Thomas Koffas, Richard Bates, C. R. Boddy, Benjamin Trocmé, J. Bronner, K. Kessoku, Dilip Jana, S. Poddar, G. Polesello, S. Cole, Ilija Vukotic, Barbara Wosiek, Jan Valenta, Helio Takai, Marko Mikuz, I. Mussche, Hans Peter Beck, T. Spreitzer, D. Schouten, C. J. Potter, J. Barreiro Guimarães da Costa, G. Fischer, Sergey Burdin, Dmitry Emeliyanov, J. C. Clemens, Yasuhiro Makida, Marcel Vreeswijk, Steve McMahon, Frederic Derue, B. Spurlock, Robert Gardner, T. Moa, T. Loddenkoetter, Giacomo Artoni, D. Joffe, H. Brown, F. Tian, Johannes Erdmann, V. I. Kolesnikov, Petre Dita, A. Sircar, R. Zimmermann, A. Irles Quiles, M. Martinez, J. Machado Miguens, P. Kadlecik, Dart-yin Soh, M. Klemetti, Oldrich Kepka, Jan Jakubek, Ewelina Lobodzinska, Daniel Lellouch, V. Chavda, J. A. Benitez Garcia, C. Liu, Christophe Clement, Rosy Nicolaidou, M. Uslenghi, G. Rybkin, Thomas LeCompte, Steven Goldfarb, Z. G. Zhao, M. Lehmacher, D. Fellmann, Tim Jones, S. De Cecco, Nikolaos Konstantinidis, E. B. Klinkby, Z. Zhan, K. Leonhardt, Peter Radloff, Vincenzo Canale, A. Bertin, A. Succurro, M. Rijpstra, A. S. Thompson, Giuseppe Mornacchi, James Frost, Pier-Olivier Deviveiros, Jonas Strandberg, David Malon, Stefan Guindon, Anna Kaczmarska, T. Kuhl, Siarhei Harkusha, N. Krieger, P. Matricon, S. L. Lloyd, H. Lee, Iacopo Vivarelli, Eduardo Ros, G. Anders, R. S. B. King, Reda Tafirout, Klaus Kurt Desch, Richard Nickerson, Y. Davygora, J. Bouchami, Francisco Alonso, Arnaud Lucotte, Y. A. Kurochkin, Liza Mijović, J. G. Rocha de Lima, R. Davidson, E. Torrence, M. Leyton, Zeno Dixon Greenwood, Yu Nakahama, Sebastian Wahrmund, Ben Smart, H. G. Moser, J. Schovancova, Augusto Santiago Cerqueira, M. D. Joergensen, Andrew Buckley, F. Niedercorn, Alexander Kupco, Edoardo Gorini, Shaun Roe, Matthew Beckingham, X. Y. Zhang, Z. Hajduk, B. Martin, J. Solc, S. Yu. Sivoklokov, H. Duran Yildiz, Ryo Nagai, G. L. Glonti, V. Scharf, P. R. Norton, Markus Nordberg, Armin Michael Nairz, A. Reinsch, Joshua Kunkle, T. P.A. A°kesson, D. Whittington, W. Ji, P. Banerjee, B. Martin dit Latour, A. Yurkewicz, Woiciech Fedorko, Ian Dawson, Metin Arik, M. Tsiakiris, C. M. Cuciuc, Michael Begel, G. Sellers, N. M. Bolnet, Minoru Hirose, A. Dotti, P. Chang, Viktor Kramarenko, M. Tyndel, Jun Guo, Osamu Sasaki, S. George, T. C. Meyer, Charlie Isaksson, Alison Lister, Benjamin Kaplan, Jun Wakabayashi, Ph. Schwegler, Kevin M. Smith, Paolo Francavilla, A. Di Mattia, E. Wulf, Andrew Chisholm, Vakhtang Tsiskaridze, Maria Curatolo, Martin Rybar, A. Seiden, James Catmore, Peter Schacht, Andreas W. W. Ludwig, Kyle Cranmer, Claudio Ferretti, J. Z. Will, S. P. Denisov, V. P. Lombardo, M. A. Thomson, Attila Krasznahorkay, I. A. Christidi, N. Ghodbane, Dirk Zerwas, H. O. Danielsson, Andrew D. Hamilton, J. Blocki, Martin Spousta, Fred Wickens, E. A. Ouellette, M. Y. Kazarinov, L. Aperio Bella, A. Shibata, F. Grancagnolo, Christoph Falk Anders, Trygve Buanes, Samuel Calvet, P. Giusti, Antonio Sbrizzi, J. Tanaka, S. Klous, Lj Simic, M. Legendre, M. Turala, Frank Ellinghaus, S. Kabana, J. N. Butler, Anyes Taffard, Nuno Anjos, M. Simonyan, Simonetta Gentile, Igor Aleksandrov, C. P. Ward, H. Merritt, Laurent Vacavant, A. Rose, Giancarlo Spigo, R. Beccherle, Kathleen Whalen, Shuwei Ye, Alberto Aloisio, Tatsumi Koi, Maurice Garcia-Sciveres, Tomas Jakoubek, Krisztian Peters, B. R. Mellado Garcia, I. Stumer, G. De Zorzi, Alberto Belloni, Paul Tipton, Tadeusz Kowalski, Allen Mincer, Markus Cristinziani, Wolfgang Liebig, V. Juranek, A. Filipc ic, N. Panikashvili, Claire Gwenlan, Marina Rotaru, John Morris, Wainer Vandelli, John Penwell, Mihail Chizhov, Giacinto Piacquadio, Mario Campanelli, J. Del Peso, C. Limbach, J. Ebke, T. Jovin, R.W. Dobinson, Nicolas Ellis, P. Loscutoff, J. Virzi, Peter Sturm, O. L. Beloborodova, J. A. Ernst, David Francis, Marcello Fanti, J. A. Parsons, Stefan Koperny, Julie Kirk, Susanne Kersten, Sebastian Grinstein, Wolfgang Mader, A. V. Ivashin, Dimitris Varouchas, G. Cataldi, M. Sosebee, Arthur Moraes, Nicola Semprini-Cesari, R. Van Der Leeuw, D. C. Bailey, Philippe Mermod, Michel Vetterli, Heidi Sandaker, E. Gornicki, A. Blondel, Giuseppe Costa, Veysi Erkcan Ozcan, S. Kohlmann, V. Zhuravlov, J. Coggeshall, Michael Dührssen, Andreas Petridis, T. Cuhadar Donszelmann, R. S. Orr, Frank Fiedler, Alberto Mengarelli, P. D. Thompson, I. P. Duerdoth, C. Goeringer, R. Mandrysch, Chikara Fukunaga, Giovanni Maccarrone, Vaclav Vrba, Heberth Torres, J. G. Saraiva, Bruno Mansoulie, Paul Newman, Alexei Klimentov, J. P. Thomas, J. Sodomka, N. Sasao, S. R. Whitehead, Fares Djama, M. Warsinsky, M. S. Kayl, S. A. Olivares Pino, M. Kurata, K. Stoerig, E. K. U. Gross, Göran Jarlskog, Sten Hellman, Jan Andre Stillings, Matthias Hamer, R. Cherkaoui El Moursli, Andrew Pilkington, Bobby Samir Acharya, M. Fehling-Kaschek, L. A. Kogan, Valerio Ippolito, Manolis Dris, H. A. Neal, G. Mahout, S. Kaneti, D. Levin, Karsten Köneke, E. von Toerne, H. J. Yang, K. Tani, Monica Dunford, Ch Geich-Gimbel, Troels Petersen, Dusan Bruncko, S. Bedikian, V. O. Tikhomirov, Alexey Anisenkov, T. Nunnemann, L. Yao, M. J. Tibbetts, Andreas Salzburger, J. Maneira, H. van der Graaf, S. Hillert, Andrzej Zemla, S. Owen, P. S. Wells, V. I. Rud, Paul Laycock, Emmanuel Sauvan, M. Schwoerer, Juan Fuster, B. Wrona, Elizaveta Shabalina, D. Evangelakou, Michele Bianco, M. A. Dufour, M. A. Pleier, Raimund Ströhmer, Alessandra Doria, V. Simak, Michele Pinamonti, Volker Büscher, Zhaoxia Meng, J. L. Holzbauer, S. Nektarijevic, P. S. Mangeard, Xin Wu, Basil Schneider, E. Laisne, Juergen Kroseberg, A. T. Doyle, H. Wahlen, K. Edmonds, G. Duckeck, R. Di Nardo, M. Aurousseau, Kazuhiro Yamamoto, Timothy Andeen, C. Cowden, Lorenzo Rinaldi, Gideon Bella, T. Hayashi, Gabriella Gaudio, Andrey Kiryunin, Peter Nemethy, E. Solfaroli Camillocci, C. Del Papa, M. Trottier-McDonald, M. Volpi, Stanley Lai, R. Meera-Lebbai, G. Gonzalez Parra, Daniel Pelikan, Cristina Galea, S. Zimmermann, Andrey Soukharev, Vincent Garonne, C. Mattravers, E. Devetak, S. Prell, Vaclav Vacek, J. Miao, V. Andrei, Federica Legger, Rohin Narayan, Valery Khovanskiy, Stanislav Pospisil, L. Mazzaferro, L. Labarga, B. Gaur, Rachid Mazini, N. Giokaris, Wouter Verkerke, Priscilla Pani, Hui Li, Andre Schoening, Clara Troncon, A. Christov, Sigve Haug, Masaharu Nomachi, Sandro Palestini, M. King, Joern Grosse-Knetter, S. H. Kim, J. Bremer, B. D. Cooper, I. Chalupkova, J. Hoffman, M. T. Pérez García-Estañ, Guillaume Unal, J. T. Linnemann, S. Pashapour, Francois Touchard, A. Artamonov, C. Oropeza Barrera, X. C. Lou, David Yu, P. Puzo, Evgeny Starchenko, M. Mechtel, C. Padilla Aranda, Aaron Bundock, Andrea Negri, Alberto Valero, Igor Gavrilenko, Massimo Lamanna, P. J. Bussey, M. I. Besana, I. Turk Cakir, Torre Wenaus, D. Milstein, Dominic Hirschbuehl, Marc Escalier, A. Jantsch, Mathieu Benoit, R. R. Debbe, J. A. Valls Ferrer, Yuji Yamazaki, G. Cattani, M. L. Kocian, Sergio Grancagnolo, H. De la Torre, You Zhou, Aranzazu Ruiz-Martinez, R. Di Sipio, H. Garitaonandia, G. Negri, D. Fassouliotis, R. M. Jungst, P. Perrodo, M. C. N. Fiolhais, Georges Aad, M. Uhlenbrock, J. Schwindling, L. Micu, G. N. Taylor, Sabine Elles, Marco Bomben, Pai-hsien Jennifer Hsu, Benjamin Brau, F. Canelli, Nikolaos Rompotis, S. De Castro, Jie Zhang, James H Cochran, Marcela Mikestikova, T. Nattermann, Nazim Huseynov, I. Dolenc, S. N. White, A. T. Watson, Nurcan Ozturk, I. Torchiani, D. Paredes Hernandez, I. Stekl, P. Steinbach, G. M. Kolachev, Kazunori Hanagaki, G. Nanava, P. A. Wijeratne, A. M. Rahimi, Stefano Giagu, Halina Bilokon, E. Thomson, Robert Harrington, H. J. Burckhart, Konstantin Toms, Si Xie, Jacqueline Batley, Manuela Venturi, S. Timoshenko, Christoph Rembser, M. Lichtnecker, E. Oliver Garcia, A. A. Minaenko, H. Boterenbrood, Agnieszka Leyko, Isabelle Wingerter-Seez, Alessandro Tricoli, P. Ge, Michael Rijssenbeek, Haiping Peng, F. Cerutti, M. Morii, Helena Santos, Ricardo Neves, J. Dodd, Veronique Boisvert, Srinivasan Rajagopalan, Irene Vichou, Hal Evans, B. A. Dolgoshein, Fred R. Hirsch, Miriam Watson, A. T. H. Arce, V. Castillo Gimenez, A. Renaud, Sergey Kuleshov, B. Gibbard, Dimitrios Sampsonidis, Robert Clarke, E. Sedykh, Andrea Coccaro, J. Goncalves Pinto Firmino Da Costa, M. J. Oreglia, T. Yamazaki, Yury Smirnov, Ludovico Pontecorvo, N. Amram, Alexander Cheplakov, S. P. Baranov, M. I. Gostkin, Elena Plotnikova, Liron Barak, Alexander Undrus, Paolo Bagnaia, A. J. Lankford, Vadim Gratchev, Xuai Zhuang, Samira Hassani, C. Da Via, Shinichi Shimizu, L. Han, G. G.G. Massaro, A. Khoroshilov, H. S. Chen, Imma Riu, F. De Lorenzi, Davide Costanzo, M. G. Wilson, J-P. Meyer, Tatsuya Masubuchi, Oliver Keith Baker, Jiri Kvita, Antonio Limosani, W. C. Wong, Juan Terron, K. E. Selbach, C. Fabre, B. M. Waugh, L. Hooft van Huysduynen, Victoria Jane Martin, John Alison, Sara Valentinetti, F. Podlyski, Simone Monzani, Jonathan Butterworth, S. Franz, Sergey Chekulaev, Z. V. Krumshteyn, Kohei Yorita, A. Meade, O. Cakir, Gregor Kasieczka, J. Llorente Merino, Stefanie Adomeit, A. Ferretto Parodi, Ole Røhne, J. Zhong, A. Goris ek, T. Vu Anh, H. von der Schmitt, E. Valladolid Gallego, X. Espinal Curull, G. Wooden, Kerstin Tackmann, E. Benhar Noccioli, E. Williams, D. Su, M. Petteni, Steffen Schaepe, P. L. Rosendahl, T. Perez Cavalcanti, Paul Hodgson, S. R. Hou, S. Errede, W. Ehrenfeld, Francesco Crescioli, Valerio Vercesi, M. Keil, Mossadek Talby, Z. Zajacova, Till Eifert, Evgenia Panagiotopoulou, W. J. Murray, Abner Soffer, F. Rühr, Bertrand Laforge, K. H. Becks, J. T. Childers, Vincent Hedberg, Diego Casadei, William Quayle, D. O. Savu, Doris Chromek-Burckhart, C. Heller, Yang Yang, Filipe Veloso, Chiara Debenedetti, Nenad Vranjes, T. Bain, S. González de la Hoz, H. G. Sander, Jean-Francois Grivaz, Michel Lefebvre, D. A. A. Geerts, E. Chareyre, L. Magnoni, Kristin Lohwasser, L. S. Gomez Fajardo, S. Stern, M. Goebel, Frank Siegert, Judith Katzy, M. C. Tamsett, P. P. Allport, Yaquan Fang, Kirill Prokofiev, G. Volpini, Raymond Brock, Shigeru Odaka, H. von Radziewski, Elisabeth Petit, B. A°sman, M. V. Purohit, Uli Schäfer, Michael Solar, Matteo Negrini, B. C. Smith, G. Rahal, A. Borisov, G. Sauvage, G. Mikenberg, Giovanni Crosetti, Giovanna Bruni, D. R. Hadley, Klaus Mönig, K. E. Johansson, Mark Stockton, Yoichi Ikegami, L. La Rotonda, Mauro Citterio, M. Teinturier, C. Topfel, R. M. Buckingham, Y. Sasaki, Christopher Lester, Remi Zaidan, W. Fernando, J. C.L. Tseng, N. De Groot, B. Butler, Thomas Naumann, Benedict Allbrooke, Saminder Dhaliwal, G. Akimoto, Riccardo-Maria Bianchi, Edson Carquin, Gabriele Chiodini, S. Willocq, Andree Robichaud-Veronneau, S. J. Wheeler-Ellis, E. Cogneras, Michal Svatos, E. Strauss, G. Vegni, Will Davey, A. Pacheco Pages, T. Holy, C. Collins-Tooth, Antonio Ferrer, Carmen Maidantchik, L. Manhaes de Andrade Filho, D. Short, C. Schmitt, Erez Etzion, M. Werner, Francois Corriveau, D. Prieur, Th. Müller, Joseph Izen, E. Bergeaas Kuutmann, Are Strandlie, J. Albert, Yang Gao, M. I. Scherzer, V. Sanchez Martinez, Zach Marshall, Philipp Fleischmann, Klaus Hamacher, Tatiana Klioutchnikova, Michal Vlasak, Lily Asquith, F. S. Merritt, Alden Stradling, D. Kharchenko, D. M. Seliverstov, D. Gillberg, S. Mitsui, Corrinne Mills, Y. Hernández Jiménez, M. T. Dova, Bengt Lund-Jensen, R. Simoniello, Elliott Cheu, T. Henß, Andrea Favareto, P. Cwetanski, John Huth, C. Guicheney, N. I. Zimin, J. W. Chapman, D. Roda Dos Santos, Elias Coniavitis, K. Mueller, Rupert Leitner, Johannes Haller, Efstathios Paganis, Maurizio Piccinini, Marcella Bona, Abdenour Lounis, Marco Fraternali, V. Kral, Umar Gul, M. Ibbotson, Neil Collins, Edward Diehl, S. Abdel Khalek, J. Mechnich, C. H. Wang, Ruslan Mashinistov, Alessandra Ciocio, K. Sliwa, D. R. Quarrie, Prolay Mal, M. Stanescu-Bellu, Ian Brock, R. Santonico, R. Caputo, David J. Smith, Roberto Spighi, M. Beimforde, Rafal Staszewski, O. Gutzwiller, Frank Winklmeier, L. R. Flores Castillo, Luc Poggioli, Christine Kourkoumelis, Pedro Jorge, Gvantsa Mchedlidze, Sarah Heim, Mauro Iodice, S. V. Mouraviev, Ruggero Turra, Maia Mosidze, Nathalie Besson, Daniele Zanzi, Predrag Cirkovic, K. H. Hiller, Sylvain Tisserant, Wolfgang Walkowiak, R. C. W. Henderson, E. Vinek, C. Le Maner, Carlos Escobar, M. Hauschild, N. Boelaert, M. Della Pietra, Pamela Ferrari, R. Spiwoks, Tancredi Carli, Roberto Cardarelli, Andrew Brandt, Ph. Schune, H. Khandanyan, Fernando Marroquim, Frank Seifert, R. Engelmann, M. Wittgen, M. J. Shochet, Alexandre Rozanov, M. Limper, Wladyslaw Dabrowski, B. Alvarez Gonzalez, Preema Rennee Pais, Edmund Dawe, Claudio Santoni, Y. A. Tikhonov, J. A. Strong, G. Gorfine, Pavel Shatalov, Jochen Dingfelder, Alex Kastanas, M. Heller, O. Vitells, Y. B. Pan, O. G. Grebenyuk, T. Greenshaw, D. Harper, R. Kowalewski, H. Czirr, Marcello Borri, Charles Leggett, M. Rammes, Fabian Huegging, J. Wetter, A. M. Zaitsev, M. Mazzanti, Andrew White, R. Alon, R. Froeschl, Alaettin Serhan Mete, Lydia Roos, S. Gonzalez, Peter Love, Catrin Bernius, David Robinson, Max Baak, Claudio Gatti, Stefan Kluth, P. C. Van Der Deijl, Valerio Bortolotto, Susumu Oda, J. S. Keller, R. Febbraro, Shlomit Tarem, Bernard Aubert, Carsten Hensel, M. Dameri, Luca Fiorini, M. Deliyergiyev, D. Urbaniec, A. Vogel, Kenneth Johns, A. Manabe, Konstantinos Nikolopoulos, Janet Dietrich, C. J. Oram, Mariagrazia Alviggi, C. Bourdarios, Jens Weingarten, S. Walch, Tony Liss, F. Wicek, Lukasz Zwalinski, Giovanni Darbo, Marianna Testa, Gavin Grant Hesketh, B. Nicquevert, Marcel Michael Stanitzki, Junji Tojo, H. P. Skottowe, A. Napier, Tiesheng Dai, J. J. Veillet, J. Petersen, Peter Kodys, Konrad Kleinknecht, M. J. Da Cunha Sargedas De Sousa, B. Brelier, Jean François Marchand, Toshi Sumida, Philip Phillips, Samuel Silverstein, R. Maenner, M. Zeman, Teresa Barillari, V. M. Kotov, Seema Bahinipati, N. D. Topilin, Stefan Schmitt, J. D. Price, A. A. Carter, A. Astbury, H. H. Williams, C. Pahl, Johann Collot, Jan Godlewski, Mariya Shiyakova, Danilo Giugni, D. S. Damiani, Otmar Biebel, Takuya Nobe, Dominik Duda, Louise Skinnari, Gabriela Navarro, Ask Emil Loevschall-Jensen, S. Heisterkamp, A. Engl, A. Roe, B. Guo, Valerio Dao, Emmerich Kneringer, Martin Johannes Schultens, D. van der Ster, Donatella Cavalli, U. Mallik, David Calvet, Lixin Ma, S. Youssef, V. Kartvelishvili, N. A. McCubbin, P. Stavina, Paul Miyagawa, A. C. König, M. Lungwitz, Graeme Stewart, M. 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Villaplana Perez, T. Schwindt, Iro Koletsou, Allison McCarn, James Ferrando, Jean-Baptiste Sauvan, Igor Potrap, W. Park, Pavlos Ioannou, Martin White, Eric Feng, Oleg Solovyanov, Ulrike Schnoor, Kristof Schmieden, A. A. Nepomuceno, I. V. Gorelov, C. N. P. Gee, Kamil Augsten, A. M. Henriques Correia, R. J. Madaras, C. Ruwiedel, Juraj Bracinik, A. Dos Anjos, Emily Nurse, Elizabeth Gallas, Jianbei Liu, A. B. Fenyuk, Federico Bertolucci, G. Sartisohn, Jelena Krstic, Nimrod Taiblum, G. A. Rosenbaum, J. P. Ottersbach, T. Fonseca Martin, M. Aharrouche, Johannes Elmsheuser, Sergey Peleganchuk, Gaetano Barone, E. Jansen, Alexander Khodinov, António Amorim, Lulu Liu, Rustem Ospanov, Sergey Panitkin, Todd Brian Huffman, Mark Slater, Andrew Nelson, L. Chikovani, F. Lepold, Ki Lie, Fumihiko Ukegawa, Andrea Formica, Venetios Polychronakos, S. Fratina, A. Loginov, Marumi Kado, Al Goshaw, J. Inigo-Golfin, Mark Scarcella, E. E. Schmidt, John Baines, Sergei Chekanov, J. Godfrey, R. Mehdiyev, M. Saleem, Gustaaf Brooijmans, J. N. Jackson, Per Werner, Simon Head, Emily Thompson, E. Torró Pastor, S. S.A. Livermore, L. Bellagamba, E. Romero Adam, Aston Komar, R. Dhullipudi, G. Lehmann Miotto, M. Teixeira Dias Castanheira, Yasuo Doi, Stewart Martin-Haugh, Vlastimil Kus, Francis Anghinolfi, Kerim Suruliz, Monika Wielers, C. F. Feng, and Adam Edward Barton

Subjects
Physics, Physics::General Physics, Nuclear and High Energy Physics, Particle physics, Large Hadron Collider, Luminosity (scattering theory), 010308 nuclear & particles physics, Branching fraction, Technicolor, 01 natural sciences, Engineering physics, Standard Model, medicine.anatomical_structure, Atlas (anatomy), Randall–Sundrum model, 0103 physical sciences, medicine, Transverse mass, High Energy Physics::Experiment, 010306 general physics
Abstract

This Letter reports a search for a heavy particle that decays to WW using events produced in pp collisions at root s = 7 TeV. The data were recorded in 2011 by the ATLAS detector and correspond to an integrated luminosity of 4.7 fb(-1). WW -> lvl'v' (l,l' = e or mu) final states are considered and the distribution of the transverse mass of the W W candidates is found to be consistent with Standard Model expectations. Upper limits on the production cross section times branching ratio into W boson pairs are set for Randall-Sundrum and bulk Randall-Sundrum gravitons, which result in observed 95% CL lower limits on the masses of the two particles of 1.23 TeV and 0.84 TeV, respectively.

Published
2013
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