27,898 research outputs found

    The hardware of the HiSCORE gamma-ray and cosmic ray Cherenkov detector

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    The HiSCORE (Hundred Square km Cosmic ORigin Explorer) project is a ground-based large-area wideangle air shower detector array that will measure gamma rays and cosmic rays in the energy range of 10 TeV up to 1EeV. Each detector array station consists of four separate light collectors with an 8-inch photomultiplier (PMT) at each end. The first station prototype has already been deployed to Tunka valley. On-site station integration and first measurements have been made. This poster will focus on the hardware aspects and the first light results of the single station. © 2012 American Institute of Physics.M. Kunnas, R. Nachtigall, S. N. Epimakhov, M. Tluczykont, L. A. Kuzmichev, S. F. Berezhnev, N. M. Budnev, M. Baker, A. Chiavassa, O. B. Chvalaev, O. A. Gress, A. N. Dyachok, U. Einhaus, D. Hampf, D. Horns, A. Ivanova, N. I. Karpov, N. N. Kalmykov, E. N. Konstantinov, A. V. Korobchenko, E. E. Korosteleva, V. A. Kozhin, B. K. Lubsandorzhiev, N. B. Lubsandorzhiev, R. R. Mirgazov, A. Pakhorukov, M. I. Panasyuk, L. V. Pankov, V. Poleschuk, E. G. Popova, V. V. Prosin, V. S. Ptuskin, G. P. Rowell, Yu. A. Semeney, B. A. Shaibonov (junior), A. A. Silaev, A. A. Silaev (junior), A. V. Skurikhin, C. Spiering, L. G. Sveshnikova, R. Wischnewski, I. V. Yashin, and A. V. Zagorodniko

    Dynamics of finite-sized light spheres in turbulence

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    We report experimental results on the Lagrangian dynamics of finite-size light particles in turbulence. Using an orthogonal camera setup and 3D particle tracking, we study the velocity and acceleration statistics of rigid light spheres in a water tunnel with nearly homogeneous and isotropic turbulence. The Reynolds number (ReY) is varied from 180 to 300, and the study covers a range of size ratios (4 < D/η < 16) for marginally light spheres. We find that the normalised acceleration PDF decreases in intermittency with increasing size ratio - in qualitative agreement with the predictions of the Faxén corrected model. We also present preliminary results on the rotational dynamics of large light spheres in turbulence

    Going Beyond Counting First Authors in Author Co-citation Analysis

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    The present study examines one of the fundamental aspects of author co-citation analysis (ACA) - the way co-citation counts are defined. Co-citation counting provides the data on which all subsequent statistical analyses and mappings are based, and we compare ACA results based on two different types of co-citation counting - the traditional type that only counts the first one among a cited work's authors on the one hand and a non-traditional type that takes into account the first 5 authors of a cited work on the other hand. Results indicate that the picture produced through this non-traditional author co-citation counting contains more coherent author groups and is therefore considerably clearer. However, this picture represents fewer specialties in the research field being studied than that produced through the traditional first-author co-citation counting when the same number of top-ranked authors is selected and analyzed. Reasons for these effects are discussed

    1ST MEASUREMENT OF GAMMA(D(S)(+)-]MU+NU)/GAMMA(D(S)(+)-]PHI-PI+)

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    Complete Author List: ACOSTA D, ATHANAS M, MASEK G, PAAR H, BEAN A, GRONBERG J, KUTSCHKE R, MENARY S, MORRISON RJ, NAKANISHI S, NELSON HN, NELSON TK, RICHMAN JD, RYD A, TAJIMA H, SCHMIDT D, SPERKA D, WITHERELL MS, PROCARIO M, YANG S, BALEST R, CHO K, DAOUDI M, FORD WT, JOHNSON DR, LINGEL K, LOHNER M, RANKIN P, SMITH JG, ALEXANDER JP, BEBEK C, BERKELMAN K, BESSON D, BROWDER TE, CASSEL DG, CHO HA, COFFMAN DM, DRELL PS, EHRLICH R, GALIK RS, GARCIASCIVERES M, GEISER B, GITTELMAN B, GRAY SW, HARTILL DL, HELTSLEY BK, JONES CD, JONES SL, KANDASWAMY J, KATAYAMA N, KIM PC, KREINICK DL, LUDWIG GS, MASUI J, MEVISSEN J, MISTRY NB, NG CR, NORDBERG E, OGG M, PATTERSON JR, PETERSON D, RILEY D, SALMAN S, SAPPER M, WORDEN H, WURTHWEIN F, AVERY P, FREYBERGER A, RODRIGUEZ J, STEPHENS R, YELTON J, CINABRO D, HENDERSON S, KINOSHITA K, LIU T, SAULNIER M, SHEN F, WILSON R, YAMAMOTO H, ONG B, SELEN M, SADOFF AJ, AMMAR R, BALL S, BARINGER P, COPPAGE D, COPTY N, DAVIS R, HANCOCK N, KELLY M, KWAK N, LAM H, KUBOTA Y, LATTERY M, NELSON JK, PATTON S, PERTICONE D, POLING R, SAVINOV V, SCHRENK S, WANG R, ALAM MS, KIM IJ, NEMATI B, ONEILL JJ, SEVERINI H, SUN CR, ZOELLER MM, CRAWFORD G, DAUBENMIER CM, FULTON R, FUJINO D, GAN KK, HONSCHEID K, KAGAN H, KASS R, LEE J, MALCHOW R, MORROW F, SKOVPEN Y, SUNG M, WHITE C, WHITMORE J, WILSON P, BUTLER F, FU X, KALBFLEISCH G, LAMBRECHT M, ROSS WR, SKUBIC P, SNOW J, WANG PL, WOOD M, BORTOLETTO D, BROWN DN, FAST J, MCILWAIN RL, MIAO T, MILLER DH, MODESITT M, SCHAFFNER SF, SHIBATA EI, SHIPSEY IPJ, WANG PN, BATTLE M, ERNST J, KROHA H, ROBERTS S, SPARKS K, THORNDIKE EH, WANG CH, DOMINICK J, SANGHERA S, SHELKOV V, SKWARNICKI T, STROYNOWSKI R, VOLOBOUEV I, ZADOROZHNY P, ARTUSO M, HE D, GOLDBERG M, HORWITZ N, KENNETT R, MONETI GC, MUHEIM F, MUKHIN Y, PLAYFER S, ROZEN Y, STONE S, THULASIDAS M, VASSEUR G, ZHU G, BARTELT J, CSORNA SE, EGYED Z, JAIN V, SHELDON P, AKERIB DS, BARISH B, CHADHA M, CHAN S, COWEN DF, EIGEN G, MILLER JS, OGRADY C, URHEIM J, WEINSTEIN A

    JETP Letters V. 81, I .06

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    JETP Letters -- March 25, 2005 Volume 81, Issue 6, pp. 241-298 FIELDS, PARTICLES, AND NUCLEI Detection of Parametric X-ray Radiation from Moderately Relativistic Protons in Crystals Yu. N. Adishchev, A. S. Artemov, S. V. Afanasiev, V. V. Boiko, M. A. Voevodin, V. I. Volkov, A. S. Gogolev, V. N. Zabaev, A. N. Efimov, Yu. V. Efremov, A. D. Kovalenko, Yu. L. Pivovarov, A. P. Potylitsyn, S. V. Romanov, Sh. Z. Saifulin, E. A. Silaev, A. M. Taratin, S. P. Timoshenkov, and S. R. Uglov pp. 241-244 Full Text: PDF (61 kB) Chiral Symmetry Breaking and Monopole Condensation in QCD M. N. Chernodub and I. E. Kozlov pp. 245-248 Full Text: PDF (57 kB) Photon–Neutrino Interactions G. Karl and V. Novikov pp. 249-254 Full Text: PDF (69 kB) PLASMA, GASES Modulation Instability of Stokes Wave --> Freak Wave A. I. Dyachenko and V. E. Zakharov pp. 255-259 Full Text: PDF (70 kB) CONDENSED MATTER Superhard Superconducting Materials Based on Diamond and Cubic Boron Nitride G. A. Dubitskiy, V. D. Blank, S. G. Buga, E. E. Semenova, V. A. Kul'bachinskii, A. V. Krechetov, and V. G. Kytin pp. 260-263 Full Text: PDF (59 kB) Magnetic Properties of Copper as a Constituent of Nanobridges Formed between Spatially Fixed Deoxyribonucleic Acid Molecules V. N. Nikiforov, V. D. Kuznetsov, Yu. D. Nechipurenko, V. I. Salyanov, and Yu. M. Yevdokimov pp. 264-266 Full Text: PDF (43 kB) Magnetic-Field-Induced Singularity in the Tunneling Current Through an InAs Quantum Dot Yu. N. Khanin and E. E. Vdovin pp. 267-271 Full Text: PDF (64 kB) Magnetoelectric Effects in Gadolinium Iron Borate GdFe3(BO3)4 A. K. Zvezdin, S. S. Krotov, A. M. Kadomtseva, G. P. Vorob'ev, Yu. F. Popov, A. P. Pyatakov, L. N. Bezmaternykh, and E. A. Popova pp. 272-276 Full Text: PDF (75 kB) Variable-Range Cotunneling and Conductivity of a Granular Metal M. V. Feigel'man and A. S. Ioselevich pp. 277-283 Full Text: PDF (106 kB) Oscillations of the Magnetoresistance of a Two-Dimensional Electron Gas in a GaAs Quantum Well with AlAs/GaAs Superlattice Barriers in a Microwave Field A. A. Bykov, A. K. Bakarov, A. K. Kalagin, and A. I. Toropov pp. 284-286 Full Text: PDF (48 kB) Spin Fluctuations in the Stacked-Triangular Antiferromagnet YMnO3 B. Roessli, S. N. Gvasaliya, E. Pomjakushina, and K. Conder pp. 287-291 Full Text: PDF (103 kB) Effect of the Spin Short-Range Order on Electron Transport and Neutron Scattering in Amorphous Alloys GdxSi1 – x N. K. Chumakov, V. V. Tugushev, S. V. Gudenko, O. A. Nikolaeva, V. N. Lazukov, I. N. Goncharenko, and P. A. Alekseev pp. 292-295 Full Text: PDF (65 kB) DISCUSSION Comment on "Order Parameter of A-like 3He Phase in Aerogel" V. P. Mineev and M. E. Zhitomirsky pp. 296-297 Full Text: PDF (22 kB) Answer to the Comment on "Order Parameter of A-Like 3He Phase in Aerogel" by Mineev and Zhitomirsky I. A. Fomin p. 298 Full Text: PDF (21 kB)Archived web conten

    Measurement of the D+/- production asymmetry in 7 TeV pp collisions

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    The asymmetry in the production cross-section \sigma of D+/- mesons, A_P = (\sigma(D+) - \sigma(D-))/(\sigma(D+) + \sigma(D-)), is measured in bins of pseudorapidity \eta and transverse momentum p_T within the acceptance of the LHCb detector. The result is obtained with a sample of D+ -> K_S pi+ decays corresponding to an integrated luminosity of 1.0 fb^-1, collected in pp collisions at a centre of mass energy of 7 TeV at the Large Hadron Collider. When integrated over the kinematic range 2.0 K_S pi+ decay is negligible. No significant dependence on \eta or p_T is observed

    Technical Physics Letters V. 27, I. 07

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    Technical Physics Letters -- July 2001 Volume 27, Issue 7, pp. 529-617 Acoustic Emission during Electrohydrodynamic Instability Development in a Nematic Liquid Crystal E. G. Aksel'rod, A. N. Kuz'min, V. I. Kryuk, V. A. Dobrin, and K. L. Shvamm pp. 529-532 Full Text: PDF (89 kB) The Shock-Wave Synthesis of Ultradisperse Chromium-Doped Alumina Powder Im Tkhek-de, N. E. Lyamkina, A. I. Lyamkin, O. P. Podavalova, V. V. Slabko, and G. A. Chiganova pp. 533-535 Full Text: PDF (39 kB) Dispersion Characteristics of Slot and Microstrip Lines Based on Ferroelectric Film–Dielectric Substrate Structures I. G. Mironenko and A. A. Ivanov pp. 536-537 Full Text: PDF (33 kB) A Photorefractive Effect Accompanying the Acoustooptical Interaction in Gyrotropic Cubic Crystals in the Presence of an Alternating Electric Field G. V. Kulak pp. 538-541 Full Text: PDF (63 kB) Erbium Electroluminescence in an Al/a-Si:H(Er)/p-c-Si/Al Heterostructure I. O. Kon'kov, A. N. Kuznetsov, P. E. Pak, E. I. Terukov, and L. S. Granitsyna pp. 542-543 Full Text: PDF (28 kB) A Magnetic Field Sensor Based on the Mechanoelectric Effect in Semiconductors Sh. M. Aliev, I. K. Kamilov, A. K. Ataev, K. M. Aliev, and A. Kh. Abduev pp. 544-545 Full Text: PDF (30 kB) Thermobaric Treatment Induced Changes in the Structure and Magnetic Properties of Manganese Antimonide V. S. Goncharov and V. M. Ryzhkovskii pp. 546-547 Full Text: PDF (45 kB) Translational Partition Functions and Equilibrium Constants of Atomic and Molecular Particles S. I. Igolkin pp. 548-550 Full Text: PDF (35 kB) Quantization of the Average Velocity of Motion in a Periodic Potential under the Action of an Ultrasonic Perturbation V. L. Popov pp. 551-553 Full Text: PDF (39 kB) Effect of the Target Surface Temperature on the Distribution of Nanoparticles Formed by Ion Implantation A. L. Stepanov, D. Hole, and V. N. Popok pp. 554-556 Full Text: PDF (43 kB) Microwave Generation Features in a Vircator with an Inhomogeneous Magnetic Field in the Interaction Region A. E. Dubinov and V. D. Selemir pp. 557-559 Full Text: PDF (45 kB) The Concept of Elementary Excitations in Classical Statistical Mechanics A. Yu. Zakharov pp. 560-562 Full Text: PDF (41 kB) Measurement of the Internal Conversion Electron Lines by the Track Counting Technique T. A. Islamov, V. G. Kalinnikov, N. T. Kambarova, T. M. Muminov, N. A. Lebedev, A. A. Solnyshkin, Yu. D. Aleshin, V. V. Kolesnikov, and V. I. Silaev pp. 563-566 Full Text: PDF (54 kB) Magnetooptical and Magnetic Properties of Granular Cobalt–Porous Silicon Nanocomposites A. N. Vinogradov, E. A. Gan'shina, V. S. Guschin, V. M. Demidovich, G. B. Demidovich, S. N. Kozlov, and N. S. Perov pp. 567-569 Full Text: PDF (48 kB) Calculation of the Shear Energy Profile in Alloys with DO19 Superstructure E. V. Chernyh, M. A. Baranov, and M. D. Starostenkov pp. 570-571 Full Text: PDF (39 kB) Envelope Shock Waves in Nonlinear Systems with Mode Coupling I. O. Zolotovskii and D. I. Sementsov pp. 572-574 Full Text: PDF (45 kB) The Effect of the Absolute Phase on the Spectrum of a Femtosecond Pulse Propagating in a Nonlinear Medium D. K. Skripov and V. A. Trofimov pp. 575-578 Full Text: PDF (75 kB) A Model of Weakly Nonlinear Stages for the Periodic Structure Formation on the Charged Surface of a Conducting Liquid N. M. Zubarev and O. V. Zubareva pp. 579-580 Full Text: PDF (33 kB) A Bolometric Detector Built into the Diamond Bulk A. Yu. Klokov, A. I. Sharkov, T. I. Galkina, R. A. Khmel'nitskii, V. A. Dravin, and A. A. Gippius pp. 581-582 Full Text: PDF (41 kB) A Hybrid Microwave Generator Based on a Vircator–TWT (Virtode) System V. D. Selemir, A. E. Dubinov, E. E. Dubinov, I. V. Konovalov, and A. V. Tikhonov pp. 583-585 Full Text: PDF (43 kB) Solid-State Reactions in TiBx–GaAs Contact Structures upon Rapid Thermal Annealing V. V. Milenin and R. V. Konakova pp. 586-588 Full Text: PDF (50 kB) Surface Carbides in the Sequence of Phase Equilibria in a Binary (Tungsten–Carbon) System N. R. Gall' pp. 589-591 Full Text: PDF (41 kB) The Fractal Analysis of a Porous Material Structure V. V. Polyakov and S. V. Kucheryavskii pp. 592-593 Full Text: PDF (29 kB) Stable Thermomagnetic Waves in Hard Superconductors N. A. Taylanov and U. T. Yakhshiev pp. 594-595 Full Text: PDF (32 kB) Parametric Amplification of Vortex Waves in an Acoustically Active Medium N. E. Molevich pp. 596-598 Full Text: PDF (39 kB) Buffer Layers for the Growth of YBa2Cu3O7 – x Films on Silicon S. V. Razumov and A. V. Tumarkin pp. 599-601 Full Text: PDF (40 kB) The Interaction of Indocyanine Green Dye with the Human Epidermis Studied in vivo É. A. Genina, A. N. Bashkatov, V. I. Kochubei, V. V. Tuchin, and G. B. Al'tshuler pp. 602-604 Full Text: PDF (41 kB) Experimental Study of the Sound Amplification in a Vibrationally Excited Nonequilibrium Gas Plasma G. A. Galechyan and A. R. Mkrtchyan pp. 605-607 Full Text: PDF (41 kB) The Electron Pinch Lifetime in High-Current Rod Pinch Diodes S. Ya. Belomyttsev and V. V. Ryzhov pp. 608-610 Full Text: PDF (48 kB) Ultimate InAsSbP Solid Solutions for 2.6–2.8-µm LEDs V. V. Romanov, É. V. Ivanov, A. N. Imenkov, N. M. Kolchanova, K. D. Moiseev, N. D. Stoyanov, and Yu. P. Yakovlev pp. 611-614 Full Text: PDF (56 kB) Some Features of the Ion-Beam Mixing during Simultaneous Ion Implantation and Metal Deposition A. D. Pogrebnyak, V. A. Martynenko, A. D. Mikhalev, V. T. Shablya, and V. P. Yanovskii pp. 615-617 Full Text: PDF (58 kB)Archived web conten

    Technical Physics Letters V. 27, I. 07

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    dc.description[en_US]Technical Physics Letters -- July 2001 Volume 27, Issue 7, pp. 529-617 Acoustic Emission during Electrohydrodynamic Instability Development in a Nematic Liquid Crystal E. G. Aksel'rod, A. N. Kuz'min, V. I. Kryuk, V. A. Dobrin, and K. L. Shvamm pp. 529-532 Full Text: PDF (89 kB) The Shock-Wave Synthesis of Ultradisperse Chromium-Doped Alumina Powder Im Tkhek-de, N. E. Lyamkina, A. I. Lyamkin, O. P. Podavalova, V. V. Slabko, and G. A. Chiganova pp. 533-535 Full Text: PDF (39 kB) Dispersion Characteristics of Slot and Microstrip Lines Based on Ferroelectric Film���Dielectric Substrate Structures I. G. Mironenko and A. A. Ivanov pp. 536-537 Full Text: PDF (33 kB) A Photorefractive Effect Accompanying the Acoustooptical Interaction in Gyrotropic Cubic Crystals in the Presence of an Alternating Electric Field G. V. Kulak pp. 538-541 Full Text: PDF (63 kB) Erbium Electroluminescence in an Al/a-Si:H(Er)/p-c-Si/Al Heterostructure I. O. Kon'kov, A. N. Kuznetsov, P. E. Pak, E. I. Terukov, and L. S. Granitsyna pp. 542-543 Full Text: PDF (28 kB) A Magnetic Field Sensor Based on the Mechanoelectric Effect in Semiconductors Sh. M. Aliev, I. K. Kamilov, A. K. Ataev, K. M. Aliev, and A. Kh. Abduev pp. 544-545 Full Text: PDF (30 kB) Thermobaric Treatment Induced Changes in the Structure and Magnetic Properties of Manganese Antimonide V. S. Goncharov and V. M. Ryzhkovskii pp. 546-547 Full Text: PDF (45 kB) Translational Partition Functions and Equilibrium Constants of Atomic and Molecular Particles S. I. Igolkin pp. 548-550 Full Text: PDF (35 kB) Quantization of the Average Velocity of Motion in a Periodic Potential under the Action of an Ultrasonic Perturbation V. L. Popov pp. 551-553 Full Text: PDF (39 kB) Effect of the Target Surface Temperature on the Distribution of Nanoparticles Formed by Ion Implantation A. L. Stepanov, D. Hole, and V. N. Popok pp. 554-556 Full Text: PDF (43 kB) Microwave Generation Features in a Vircator with an Inhomogeneous Magnetic Field in the Interaction Region A. E. Dubinov and V. D. Selemir pp. 557-559 Full Text: PDF (45 kB) The Concept of Elementary Excitations in Classical Statistical Mechanics A. Yu. Zakharov pp. 560-562 Full Text: PDF (41 kB) Measurement of the Internal Conversion Electron Lines by the Track Counting Technique T. A. Islamov, V. G. Kalinnikov, N. T. Kambarova, T. M. Muminov, N. A. Lebedev, A. A. Solnyshkin, Yu. D. Aleshin, V. V. Kolesnikov, and V. I. Silaev pp. 563-566 Full Text: PDF (54 kB) Magnetooptical and Magnetic Properties of Granular Cobalt���Porous Silicon Nanocomposites A. N. Vinogradov, E. A. Gan'shina, V. S. Guschin, V. M. Demidovich, G. B. Demidovich, S. N. Kozlov, and N. S. Perov pp. 567-569 Full Text: PDF (48 kB) Calculation of the Shear Energy Profile in Alloys with DO19 Superstructure E. V. Chernyh, M. A. Baranov, and M. D. Starostenkov pp. 570-571 Full Text: PDF (39 kB) Envelope Shock Waves in Nonlinear Systems with Mode Coupling I. O. Zolotovskii and D. I. Sementsov pp. 572-574 Full Text: PDF (45 kB) The Effect of the Absolute Phase on the Spectrum of a Femtosecond Pulse Propagating in a Nonlinear Medium D. K. Skripov and V. A. Trofimov pp. 575-578 Full Text: PDF (75 kB) A Model of Weakly Nonlinear Stages for the Periodic Structure Formation on the Charged Surface of a Conducting Liquid N. M. Zubarev and O. V. Zubareva pp. 579-580 Full Text: PDF (33 kB) A Bolometric Detector Built into the Diamond Bulk A. Yu. Klokov, A. I. Sharkov, T. I. Galkina, R. A. Khmel'nitskii, V. A. Dravin, and A. A. Gippius pp. 581-582 Full Text: PDF (41 kB) A Hybrid Microwave Generator Based on a Vircator���TWT (Virtode) System V. D. Selemir, A. E. Dubinov, E. E. Dubinov, I. V. Konovalov, and A. V. Tikhonov pp. 583-585 Full Text: PDF (43 kB) Solid-State Reactions in TiBx���GaAs Contact Structures upon Rapid Thermal Annealing V. V. Milenin and R. V. Konakova pp. 586-588 Full Text: PDF (50 kB) Surface Carbides in the Sequence of Phase Equilibria in a Binary (Tungsten���Carbon) System N. R. Gall' pp. 589-591 Full Text: PDF (41 kB) The Fractal Analysis of a Porous Material Structure V. V. Polyakov and S. V. Kucheryavskii pp. 592-593 Full Text: PDF (29 kB) Stable Thermomagnetic Waves in Hard Superconductors N. A. Taylanov and U. T. Yakhshiev pp. 594-595 Full Text: PDF (32 kB) Parametric Amplification of Vortex Waves in an Acoustically Active Medium N. E. Molevich pp. 596-598 Full Text: PDF (39 kB) Buffer Layers for the Growth of YBa2Cu3O7 ��� x Films on Silicon S. V. Razumov and A. V. Tumarkin pp. 599-601 Full Text: PDF (40 kB) The Interaction of Indocyanine Green Dye with the Human Epidermis Studied in vivo �. A. Genina, A. N. Bashkatov, V. I. Kochubei, V. V. Tuchin, and G. B. Al'tshuler pp. 602-604 Full Text: PDF (41 kB) Experimental Study of the Sound Amplification in a Vibrationally Excited Nonequilibrium Gas Plasma G. A. Galechyan and A. R. Mkrtchyan pp. 605-607 Full Text: PDF (41 kB) The Electron Pinch Lifetime in High-Current Rod Pinch Diodes S. Ya. Belomyttsev and V. V. Ryzhov pp. 608-610 Full Text: PDF (48 kB) Ultimate InAsSbP Solid Solutions for 2.6���2.8-��m LEDs V. V. Romanov, �. V. Ivanov, A. N. Imenkov, N. M. Kolchanova, K. D. Moiseev, N. D. Stoyanov, and Yu. P. Yakovlev pp. 611-614 Full Text: PDF (56 kB) Some Features of the Ion-Beam Mixing during Simultaneous Ion Implantation and Metal Deposition A. D. Pogrebnyak, V. A. Martynenko, A. D. Mikhalev, V. T. Shablya, and V. P. Yanovskii pp. 615-617 Full Text: PDF (58 kB)dc.description.contributor[en_US]dc.description.contributor[en_US

    Evidence for the decay B0→J/ψω and measurement of the relative branching fractions of meson decays to J/ψη and J/ψη′

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    First evidence of the B 0 → J / ψ ω decay is found and the B s 0 → J / ψ η and B s 0 → J / ψ η ′ decays are studied using a dataset corresponding to an integrated luminosity of 1.0 fb -1 collected by the LHCb experiment in proton-proton collisions at a centre-of-mass energy of sqrt(s) = 7 TeV. The branching fractions of these decays are measured relative to that of the B 0 → J / ψ ρ 0 decay:frac(B (B 0 → J / ψ ω), B (B 0 → J / ψ ρ 0)) = 0.89 ± 0.19 (stat) - 0.13 + 0.07 (syst),frac(B (B s 0 → J / ψ η), B (B 0 → J / ψ ρ 0)) = 14.0 ± 1.2 (stat) - 1.5 + 1.1 (syst) - 1.0 + 1.1 (frac(f d, f s)),frac(B (B s 0 → J / ψ η ′), B (B 0 → J / ψ ρ 0)) = 12.7 ± 1.1 (stat) - 1.3 + 0.5 (syst) - 0.9 + 1.0 (frac(f d, f s)), where the last uncertainty is due to the knowledge of f d / f s, the ratio of b-quark hadronization factors that accounts for the different production rate of B 0 and B s 0 mesons. The ratio of the branching fractions of B s 0 → J / ψ η ′ and B s 0 → J / ψ η decays is measured to befrac(B (B s 0 → J / ψ η ′), B (B s 0 → J / ψ η)) = 0.90 ± 0.09 (stat) - 0.02 + 0.06 (syst)

    A matrix characterization for the D-v-semiclassical and D-v-coherent orthogonal polynomials

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    We present a new structure relation for the sequence of orthogonal polynomials associated with a D-v-semiclassical linear functional of class s, and then we use it to obtain a matrix characterization of the D-v-semiclassical orthogonal polynomials in terms of the Jacobi matrix associated with the multiplication operator in the basis of orthonormal polynomials, and the nonsingular lower triangular matrix that represents the orthogonal polynomials with respect to some bases of polynomials. We also provide a matrix characterization of D-v-coherent pairs of linear functionals.The work of the first author was supported by a grant of the Secretar´ıa de Educaci´on P´ublica of M´exico and the Mexican Government. The work of the second author was supported by Consejo Nacional de Ciencia y Tecnolog´ıa of M´exico, grant 156668. The work of the third author was supported by Direcci ´on General de Investigaci´on Cient´ıfica y T´ecnica, Ministerio de Econom´ıa y Competitividad of Spain, grant MTM2012-36732-C03-01. The authors thank the anonymous referee for her/his valuable comments and suggestions. They contributed to improve the presentation of the manuscript
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