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HiGHLiGHts OF tHE 2014 EDitiON OF tHE REViEW OF PARtiCLE PHYsiCs

Chinese Physics C 2014年第9期38卷 5-5页

作者： K.A.Olive K.Agashe C.Amsler M.Antonelli J.-F.Arguin D.M.Asner H.Baer H.R.Band R.M.Barnett t.Basaglia C.W.Bauer J.J.Beatty V.i.Belousov J.Beringer G.Bernardi s.Bethke H.Bichsel O.Biebe E.Blucher s.Blusk G.Brooijmans O.Buchmueller V.Burkert M.A.Bychkov R.N.Cahn M.Carena A.Ceccucci A.Cerr D.Chakraborty M.-C.Chen R.s.Chivukula K.Copic G.Cowan O.Dahl G.D'Ambrosio t.Damour D.de Florian A.de Gouvea t.DeGrand P.de Jong G.Dissertor B.A.Dobrescu M.Doser M.Drees H.K.Dreiner D.A.Edwards s.Eidelman J.Erler V.V.Ezhela W.Fetscher B.D.Fields B.Foster A.Freitas t.K.Gaisser H.Gallagher L.Garren H.-J.Gerber G.Gerbier t.Gershon t.Gherghetta s.Golwala M.Goodman C.Grab A.V.Gritsan C.Grojean D.E.Groom M.Grnewald A.Gurtu t.Gutsche H.E.Haber K.Hagiwara C.Hanhart s.Hashimoto Y.Hayato K.G.Hayes M.Heffner B.Heltsley J.J.Hernandez-Rey K.Hikasa A.Hocker J.Holder A.Holtkamp J.Huston J.D.Jackson K.F.Johnson t.Junk M.Kado D.Karlen U.F.Katz s.R.Klein E.Klempt R.V.Kowalewski F.Krauss M.Kreps B.Krusche Yu.V.Kuyanov Y.Kwon O.Lahav J.Laiho P.Langacker A.Liddle Z.Ligeti C.-J.Lin t.M.Liss L.Littenberg K.s.Lugovsky s.B.Lugovsky F.Maltoni t.Mannel A.V.Manohar W.J.Marciano A.D.Martin A.Masoni J.Matthews D.Milstead P.Molaro K.Monig F.Moortgat M.J.Mortonson H.Murayama K.Nakamura M.Narain P.Nason s.Navas M.Neubert P.Nevski Y.Nir L.Pape J.Parsons C.Patrignani J.A.Peacock M.Pennington s.t.Petcov Kavli iPMU A.Piepke A.Pomarol A.Quadt s.Raby J.Rademacker G.Raffel B.N.Ratcliff P.Richardson A.Ringwald s.Roesler s.Rolli A.Romaniouk L.J.Rosenberg J L.Rosner G.Rybka C.t.sachrajda Y.sakai G.P.salam s.sarkar F.sauli O.schneider K.scholberg D.scott V.sharma s.R.sharpe M.silari.t.sjostrand P.skands J.G.smith G.F.smoot s.spanier H.spieler C.spiering A.stahl t.stanev s.L.stone t.sumiyoshi M.J.syphers F.takahashi M.tanabashi J.terning L.tiator M.titov N.P.tkachenko N.A.tornqvist D.tovey G.Valencia G.Venanzoni M.G.Vincter P.Vogel A.Vogt s.P.Wakely W.Walkowiak C.W.Walter D.R.Ward G.Weiglein D.H.Weinberg E.J.Weinberg M.White L.R.Wiencke C.G.Wohl L.Wolfenstein J.Womersley C.L. University of Minnesota School of Physics and Astronomy116 Church St.S.E.MinneapolisMN 55455USA University of Maryland Department of PhysicsCollege ParkMD 20742-4111USA Albert Einstein Center for Fundamental Physics Universitat BernCH-3012 BernSwitzerland Lab.Nazionali di Frascati dell'INFN CP 13via E.Fermi40I-00044 Frascati(Roma)Italy Departement de physique Universite de MontrealC.P.6128succ.centre-villeMontreal(Quebec) H3C 3J7Canada Pacific Northwest National Laboratory 902 Battelle BoulevardRichlandWA 99352USA Department of Physics and Astronomy University of OklahomaNormanOK 73019USA Department of Physics University of WisconsinMadisonWI 53706USA Physics Division Lawrence Berkeley National Laboratory1 Cyclotron RoadBerkeleyCA 94720USA CERN European Organization for Nuclear ResearchCH-1211 Geneve 23Switzerland Department of Physics The Ohio State University191 W.Woodruff Ave.ColumbusOH 43210 COMPAS Group Institute for High Energy PhysicsRU- 142284ProtvinoRussia LPNHE IN2P3-CNRS et Universites de Paris 6 et 7F-75252 ParisFrance Max-Planck-Institute of Physics 80805 MunichGermany Department of Physics University of WashingtonSeattleWA 98195USA Ludwig-Maximilians-Universitat Fakultdt für PhysikSchellingstr.4D-80799 MünchenGermany Enrico Fermi Institute and Department of Physics University of ChicagoChicagoIL 60637-1433USA Department of Physics Syracuse UniversitySyracuseNY13244USA Department of Physics Columbia University538 W.120th StreetNew YorkNY10027 USA High Energy Physics Group Blackett LaboratoryImperial CollegePrince Consort RoadLondon SW7 2AZUK Jefferson Lab 12000 Jefferson Ave.Newport NewsVA 23606USA Department of Physics University of VirginiaPO Box 400714CharlottesvilleVA 22904USA Fermi National Accelerator Laboratory P.O.Box 500BataviaIL 60510USA Kavli Institute for Cosmological Physics University of ChicagoChicagoIL 60637-1433USA Department of Physics and Astronomy University of SussexFalmerBrighton BN1 9QHUK Department o

899 new papers with 3283 new measurements Over 330 papers from LHC experiments （AtLAs, CMs, and LHCb）.

关键词： LHC

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PERiODiC tABLE OF tHE ELEMENts

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Chinese Physics C 2014年第9期38卷 113-113页

table *** 2011 by ***（LBNL）,and ***.

关键词： UiP CN PERiODiC tABLE OF tHE ELEMENts si st

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COMMONLY UsED RADiOACtiVE sOURCEs

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Chinese Physics C 2014年第9期38卷 466-466页

table 36.1. Revised November 1993 by E. Browne （LBNL）.＂Emission probability＂ is the probability per decay of a given emission; because of cascades these may total more than 100%. Only principal emissions are liste... 详细信息

table 36.1. Revised November 1993 by E. Browne （LBNL）. ＂Emission probability＂ is the probability per decay of a given emission; because of cascades these may total more than 100%. Only principal emissions are listed. EC means electron capture,

关键词： in Pb COMMONLY UsED RADiOACtiVE sOURCEs Cs

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NEUtRiNO BEAM LiNEs At HiGH-ENERGY PROtON sYNCHROtRONs

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Chinese Physics C 2014年第9期38卷 397-397页

Revised september 2013 with numbers verified by representatives of the synchrotrons （contact C.-J. Lin, LBNL）. For existing （future） neutrino beam lines the latest achieved （design） values are given.

关键词： Graphite Eu Be in CERN target NEUtRiNO BEAM LiNEs At HiGH-ENERGY PROtON sYNCHROtRONs

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On Quasi-Orthogonal space-time Block Codes for Dual-Polarized MiMO Channels

On Quasi-Orthogonal Space-Time Block Codes for Dual-Polarize...

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2011年无线通信与信号处理国际会议(WCsP 2011)

作者： Zhike Huang Yabo Li Haiquan Wang Xiang-Gen Xia Department of Information Science and Electrical Engineering ZhejiangProvincial Key Laboratory of I College of Communications Engineering Hangzhou Dianzi UniversityHangzhou Zhejiang P.R.China Department of Electrical and Computer Engineering University of Delaware Newark DE 19716 U.S.A

As a space- and cost-efficient antenna configuration, dual-polarized antennas are widely deployed in real field MiMO wireless communication systems. the Quasi-Orthogonal space- time Code (QOstBC), due to its advantages in the transmission rate and the decoding complexity, is an important transmit diversity scheme for more than 2 transmit antennas. in this paper, we investigate the performance of QOstBC for dual-polarized MiMO channels. We show that when QOstBC is used with dual-polarized antennas, we need to connect the power amplifier (PA) outputs to the differently polarized antennas carefully, in order to avoid more than 1dB performance loss at high crosspolar discrimination (XPD). Also, we show that, if the QOstBC with constellation rotations, which achieves full diversity in unipolarized MiMO channels, is used, the performance loss due to the bad PA to antenna connections is mitigated. However, when the XPD is high, the QOstBC without full diversity, if connected properly, can achieve better performance than the QOstBC with full diversity but connected badly, which shows the importance of proper connection at high XPD. so, to guarantee robust performance of QOstBC at any XPD, besides designing codes to have full diversity and good diversity product, connecting properly between the PA outputs to the antennas is also important.

关键词： MiMO transmit Diversity space-time Coding Quasi-Orthogonal space-time Block Code Dual-Polarized Channel Wireless Communications

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Measurements of four-lepton production at the Z resonance in pp collisions at sqrt[s] = 7 and 8 teV with AtLAs

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Physical Review Letters [Phys Rev Lett] 2014年第23期112卷 231806-231806页

作者： Aad Abbott Abdallah Abdel Khalek Abdinov Aben Abi Abolins AbouZeid O Abramowicz Abreu Abulaiti Acharya B Adamczyk Adams D Adelman Adomeit Adye Agatonovic-Jovin Aguilar-saavedra J Agustoni Ahlen s Ahmad Ahmadov Aielli Akerstedt Åkesson t Akimoto Akimov A Alberghi G Albert Albrand Alconada Verzini M Aleksa Aleksandrov i Alexa Alexander Alexandre Alexopoulos Alhroob Alimonti Alio Alison Allbrooke B Allison L Allport P Allwood-spiers s Almond Aloisio Alonso Alpigiani Altheimer Alvarez Gonzalez Alviggi M Amako Amaral Coutinho Amelung Amidei Amor Dos santos s Amorim Amoroso Amram Amundsen Anastopoulos Ancu L Andari Andeen Anders C Anders Anderson K Andreazza Andrei Anduaga X Angelidakis Angelozzi Anger Angerami Anghinolfi Anisenkov A Anjos Annovi Antonaki Antonelli Antonov Antos Anulli Aoki Aperio Bella Apolle Arabidze Aracena Arai Araque J Arce A Arguin J Argyropoulos Arik Armbruster A Arnaez Arnal Arnold Arslan Artamonov Artoni Asai Asbah Ashkenazi Asman Asquith Assamagan Astalos Atkinson Atlay N Auerbach Augsten Aurousseau Avolio Azuelos Azuma Baak M Bacci Bachacou Bachas Backes Backhaus Backus Mayes Badescu Bagiacchi Bagnaia Bai Bain Baines J Baker O Baker Balek Balli Banas Banerjee Banfi Bangert Bannoura A Bansal Bansil H Barak Baranov s Barberio E Barberis Barbero Barillari Barisonzi Barklow Barlow Barnett B Barnett R Barnovska Baroncelli Barone Barr A Barreiro Barreiro Guimarães da Costa Bartoldus Barton A Bartos Bartsch Bassalat Basye Bates R Batkova Batley J Battistin Bauer Bawa H Beau Beauchemin P Beccherle Bechtle Beck H Becker Beckingham Becot Beddall A Beddall Bedikian Bednyakov V Bee C Beemster L Beermann t Begel Behr Belanger-Champagne Bell P Bell W Bella Bellagamba Bellerive Bellomo Belloni Beloborodova O Belotskiy Beltramello Benary Benchekroun Bendtz Benekos Benhammou Benhar Noccioli Benitez Garcia J Benjamin D Bensinger J Benslama Bentvelsen Berge Bergeaas Kuutmann Berger Berghaus Berglund Beringer Bernard Bernat Bernius Bernlochner F Berry Berta Bertella Bertolucci Bertsche Besana M Besjes G Bessids CPPM Aix-Marseille Université and CNRS/IN2P3 Marseille France Homer L. Dodge Department of Physics and Astronomy University of Oklahoma Norman Oklahoma USA Institute of Physics Academia Sinica Taipei Taiwan LAL Université Paris-Sud and CNRS/IN2P3 Orsay France Institute of Physics Azerbaijan Academy of Sciences Baku Azerbaijan Nikhef National Institute for Subatomic Physics and University of Amsterdam Amsterdam Netherlands Department of Physics Oklahoma State University Stillwater Oklahoma USA Department of Physics and Astronomy Michigan State University East Lansing Michigan USA Department of Physics University of Toronto Toronto Ontario Canada Raymond and Beverly Sackler School of Physics and Astronomy Tel Aviv University Tel Aviv Israel CERN Geneva Switzerland Department of Physics Stockholm University Sweden and The Oskar Klein Centre Stockholm Sweden INFN Gruppo Collegato di Udine Sezione di Trieste Udine Italy and ICTP Trieste Italy AGH University of Science and Technology Faculty of Physics and Applied Computer Science Krakow Poland Physics Department Brookhaven National Laboratory Upton New York USA Department of Physics Yale University New Haven Connecticut USA Fakultät für Physik Ludwig-Maximilians-Universität München München Germany Particle Physics Department Rutherford Appleton Laboratory Didcot United Kingdom Institute of Physics University of Belgrade Belgrade Serbia Laboratorio de Instrumentacao e Fisica Experimental de Particulas-LIP Lisboa Portugal and Departamento de Fisica Teorica y del Cosmos and CAFPE Universidad de Granada Granada (Spain) Portugal Albert Einstein Center for Fundamental Physics and Laboratory for High Energy Physics University of Bern Bern Switzerland Department of Physics Boston University Boston Massachusetts USA Departments of Physics & Astronomy and Chemistry Stony Brook University Stony Brook New York USA Joint Institute for Nuclear Research JINR Dubna Dubna Russia INFN Sezione di Roma Tor

Measurements of four-lepton (4ℓ, ℓ=e,μ) production cross sections at the Z resonance in pp collisions at the LHC with the AtLAs detector are presented. For dilepton and four-lepton invariant mass regions m(ℓ+ℓ(-)) > 5 GeV and 80the measured cross sections are 76 ± 18(stat) ± 4(syst) ± 1.4(lumi) fb and 107 ± 9(stat) ± 4(syst) ± 3.0(lumi) fb at sqrt[s] = 7 and 8 teV, respectively. By subtracting the nonresonant 4ℓ production contributions and normalizing with Z → μ(+)μ(-) events, the branching fraction for the Z boson decay to 4ℓ is determined to be (3.20 ± 0.25(stat) ± 0.13(syst)) × 10(-6), consistent with the standard model prediction.

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Measurement of the Azimuthal Angle Dependence of inclusive Jet Yields in Pb+Pb Collisions at sNN=2.76 teV with the AtLAs Detector

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Physical Review Letters 2013年第15期111卷 152301-152301页

作者： G. Aad t. Abajyan B. Abbott J. Abdallah s. Abdel Khalek O. Abdinov R. Aben B. Abi M. Abolins O. s. AbouZeid H. Abramowicz H. Abreu Y. Abulaiti B. s. Acharya L. Adamczyk D. L. Adams t. N. Addy J. Adelman s. Adomeit t. Adye s. Aefsky t. Agatonovic-Jovin J. A. Aguilar-saavedra M. Agustoni s. P. Ahlen A. Ahmad M. Ahsan G. Aielli t. P. A. Åkesson G. Akimoto A. V. Akimov M. A. Alam J. Albert s. Albrand M. J. Alconada Verzini M. Aleksa i. N. Aleksandrov F. Alessandria C. Alexa G. Alexander G. Alexandre t. Alexopoulos M. Alhroob M. Aliev G. Alimonti L. Alio J. Alison B. M. M. Allbrooke L. J. Allison P. P. Allport s. E. Allwood-spiers J. Almond A. Aloisio R. Alon A. Alonso F. Alonso A. Altheimer B. Alvarez Gonzalez M. G. Alviggi K. Amako Y. Amaral Coutinho C. Amelung V. V. Ammosov s. P. Amor Dos santos A. Amorim s. Amoroso N. Amram C. Anastopoulos L. s. Ancu N. Andari t. Andeen C. F. Anders G. Anders K. J. Anderson A. Andreazza V. Andrei X. s. Anduaga s. Angelidakis P. Anger A. Angerami F. Anghinolfi A. V. Anisenkov N. Anjos A. Annovi A. Antonaki M. Antonelli A. Antonov J. Antos F. Anulli M. Aoki L. Aperio Bella R. Apolle G. Arabidze i. Aracena Y. Arai A. t. H. Arce s. Arfaoui J-F. Arguin s. Argyropoulos E. Arik M. Arik A. J. Armbruster O. Arnaez V. Arnal A. Artamonov G. Artoni D. Arutinov s. Asai N. Asbah s. Ask B. Åsman L. Asquith K. Assamagan R. Astalos A. Astbury M. Atkinson N. B. Atlay B. Auerbach E. Auge K. Augsten M. Aurousseau G. Avolio D. Axen G. Azuelos Y. Azuma M. A. Baak C. Bacci A. M. Bach H. Bachacou K. Bachas M. Backes M. Backhaus J. Backus Mayes E. Badescu P. Bagiacchi P. Bagnaia Y. Bai D. C. Bailey t. Bain J. t. Baines O. K. Baker s. Baker P. Balek F. Balli E. Banas sw. Banerjee D. Banfi A. Bangert V. Bansal H. s. Bansil L. Barak s. P. Baranov t. Barber E. L. Barberio D. Barberis M. Barbero D. Y. Bardin t. Barillari M. Barisonzi t. Barklow N. Barlow B. M. Barnett R. M. Barnett A. Baroncelli G. Barone A. J. Barr F. Barreiro J. Barreiro Guimarães da Costa R. Bartoldus A. E. Barton V. Bartsch A. Basye R. L. Fakultät für Mathematik und Physik Albert-Ludwigs-Universität Freiburg Germany Physikalisches Institut University of Bonn Bonn Germany Homer L. Dodge Department of Physics and Astronomy University of Oklahoma Norman Oklahoma USA Institut de Física d’Altes Energies and Departament de Física de la Universitat Autònoma de Barcelona Barcelona Spain LAL Université Paris-Sud and CNRS/IN2P3 Orsay France Institute of Physics Azerbaijan Academy of Sciences Baku Azerbaijan Nikhef National Institute for Subatomic Physics and University of Amsterdam Amsterdam Netherlands Department of Physics Oklahoma State University Stillwater Oklahoma USA Department of Physics and Astronomy Michigan State University East Lansing Michigan USA Department of Physics University of Toronto Toronto Ontario Canada Raymond and Beverly Sackler School of Physics and Astronomy Tel Aviv University Tel Aviv Israel DSM/IRFU (Institut de Recherches sur les Lois Fondamentales de l’Univers) CEA Saclay (Commissariat à l’Energie Atomique et aux Energies Alternatives) Gif-sur-Yvette France Department of Physics Stockholm University Stockholm Sweden The Oskar Klein Centre Stockholm Sweden INFN Gruppo Collegato di Udine Udine Italy ICTP Trieste Italy AGH University of Science and Technology Faculty of Physics and Applied Computer Science Krakow Poland Physics Department Brookhaven National Laboratory Upton New York USA Department of Physics Hampton University Hampton Virginia USA Department of Physics Yale University New Haven Connecticut USA Fakultät für Physik Ludwig-Maximilians-Universität München München Germany Particle Physics Department Rutherford Appleton Laboratory Didcot United Kingdom Department of Physics Brandeis University Waltham Massachusetts USA Vinca Institute of Nuclear Sciences University of Belgrade Belgrade Serbia Departamento de Fisica Teorica y del Cosmos and CAFPE Universidad de Granada Granada Spain Albert Einstein Center for Fundamental Physics and Laborato

Measurements of the variation of inclusive jet suppression as a function of relative azimuthal angle, Δϕ, with respect to the elliptic event plane provide insight into the path-length dependence of jet quenching. AtLAs has measured the Δϕ dependence of jet yields in 0.14 nb−1 of sNN=2.76 teV Pb+Pb collisions at the LHC for jet transverse momenta pt>45 GeV in different collision centrality bins using an underlying event subtraction procedure that accounts for elliptic flow. the variation of the jet yield with Δϕ was characterized by the parameter, v2jet, and the ratio of out-of-plane (Δϕ∼π/2) to in-plane (Δϕ∼0) yields. Nonzero v2jet values were measured in all centrality bins for pt<160 GeV. the jet yields are observed to vary by as much as 20% between in-plane and out-of-plane directions.

关键词： Germanium compounds

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Measurement of top Quark Polarization in top-Antitop Events from Proton-Proton Collisions at s=7 teV Using the AtLAs Detector

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Physical Review Letters 2013年第23期111卷 232002-232002页

作者： G. Aad t. Abajyan B. Abbott J. Abdallah s. Abdel Khalek O. Abdinov R. Aben B. Abi M. Abolins O. s. AbouZeid H. Abramowicz H. Abreu Y. Abulaiti B. s. Acharya L. Adamczyk D. L. Adams t. N. Addy J. Adelman s. Adomeit t. Adye s. Aefsky t. Agatonovic-Jovin J. A. Aguilar-saavedra M. Agustoni s. P. Ahlen A. Ahmad M. Ahsan G. Aielli t. P. A. Åkesson G. Akimoto A. V. Akimov M. A. Alam J. Albert s. Albrand M. J. Alconada Verzini M. Aleksa i. N. Aleksandrov F. Alessandria C. Alexa G. Alexander G. Alexandre t. Alexopoulos M. Alhroob M. Aliev G. Alimonti L. Alio J. Alison B. M. M. Allbrooke L. J. Allison P. P. Allport s. E. Allwood-spiers J. Almond A. Aloisio R. Alon A. Alonso F. Alonso A. Altheimer B. Alvarez Gonzalez M. G. Alviggi K. Amako Y. Amaral Coutinho C. Amelung V. V. Ammosov s. P. Amor Dos santos A. Amorim s. Amoroso N. Amram C. Anastopoulos L. s. Ancu N. Andari t. Andeen C. F. Anders G. Anders K. J. Anderson A. Andreazza V. Andrei X. s. Anduaga s. Angelidakis P. Anger A. Angerami F. Anghinolfi A. V. Anisenkov N. Anjos A. Annovi A. Antonaki M. Antonelli A. Antonov J. Antos F. Anulli M. Aoki L. Aperio Bella R. Apolle G. Arabidze i. Aracena Y. Arai A. t. H. Arce s. Arfaoui J-F. Arguin s. Argyropoulos E. Arik M. Arik A. J. Armbruster O. Arnaez V. Arnal O. Arslan A. Artamonov G. Artoni s. Asai N. Asbah s. Ask B. Åsman L. Asquith K. Assamagan R. Astalos A. Astbury M. Atkinson N. B. Atlay B. Auerbach E. Auge K. Augsten M. Aurousseau G. Avolio D. Axen G. Azuelos Y. Azuma M. A. Baak C. Bacci A. M. Bach H. Bachacou K. Bachas M. Backes M. Backhaus J. Backus Mayes E. Badescu P. Bagiacchi P. Bagnaia Y. Bai D. C. Bailey t. Bain J. t. Baines O. K. Baker s. Baker P. Balek F. Balli E. Banas sw. Banerjee D. Banfi A. Bangert V. Bansal H. s. Bansil L. Barak s. P. Baranov t. Barber E. L. Barberio D. Barberis M. Barbero D. Y. Bardin t. Barillari M. Barisonzi t. Barklow N. Barlow B. M. Barnett R. M. Barnett A. Baroncelli G. Barone A. J. Barr F. Barreiro J. Barreiro Guimarães da Costa R. Bartoldus A. E. Barton V. Bartsch A. Bassalat A. Ba Fakultät für Mathematik und Physik Albert-Ludwigs-Universität Freiburg Germany Physikalisches Institut University of Bonn Bonn Germany Homer L. Dodge Department of Physics and Astronomy University of Oklahoma Norman Oklahoma USA Institut de Física d’Altes Energies and Departament de Física de la Universitat Autònoma de Barcelona Barcelona Spain LAL Université Paris-Sud and CNRS/IN2P3 Orsay France Institute of Physics Azerbaijan Academy of Sciences Baku Azerbaijan Nikhef National Institute for Subatomic Physics and University of Amsterdam Amsterdam Netherlands Department of Physics Oklahoma State University Stillwater Oklahoma USA Department of Physics and Astronomy Michigan State University East Lansing Michigan USA Department of Physics University of Toronto Toronto Ontario Canada Raymond and Beverly Sackler School of Physics and Astronomy Tel Aviv University Tel Aviv Israel DSM/IRFU (Institut de Recherches sur les Lois Fondamentales de l’Univers) CEA Saclay (Commissariat à l’Energie Atomique et aux Energies Alternatives) Gif-sur-Yvette France Department of Physics Stockholm University Sweden The Oskar Klein Centre Stockholm Sweden INFN Gruppo Collegato di Udine Italy ICTP Trieste Italy AGH University of Science and Technology Faculty of Physics and Applied Computer Science Krakow Poland Physics Department Brookhaven National Laboratory Upton New York USA Department of Physics Hampton University Hampton Virginia USA Department of Physics Yale University New Haven Connecticut USA Fakultät für Physik Ludwig-Maximilians-Universität München München Germany Particle Physics Department Rutherford Appleton Laboratory Didcot United Kingdom Department of Physics Brandeis University Waltham Massachusetts USA Vinca Institute of Nuclear Sciences University of Belgrade Belgrade Serbia Departamento de Fisica Teorica y del Cosmos and CAFPE Universidad de Granada Granada Spain Albert Einstein Center for Fundamental Physics and Laboratory for High Energy

this Letter presents measurements of the polarization of the top quark in top-antitop quark pair events, using 4.7 fb−1 of proton-proton collision data recorded with the AtLAs detector at the Large Hadron Collider at s=7 teV. Final states containing one or two isolated leptons (electrons or muons) and jets are considered. two measurements of αℓP, the product of the leptonic spin-analyzing power and the top quark polarization, are performed assuming that the polarization is introduced by either a CP conserving or a maximally CP violating production process. the measurements obtained, αℓPCPC=−0.035±0.014(stat)±0.037(syst) and αℓPCPV=0.020±0.016(stat)−0.017+0.013(syst), are in good agreement with the standard model prediction of negligible top quark polarization.

关键词： Polarization

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Utility of Mining Algorithms in Blogs searching Efficiency

Utility of Mining Algorithms in Blogs Searching Efficiency

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international Conference on Computational intelligence and Communication Networks (CiCN)

作者： Robin singh Bhadoria Prem Narayan Arya Manish Dixit SATI Vidisha Madhya Pradesh India Department of Computer Application SATI Vidisha Madhya Pradesh India Deptt of Computer Science & Engineering M. I. T. S. Gwalior Madhya Pradesh India

the aim of this paper is focus discovering frequent patterns in Web log data and to obtain information about the navigational behavior of the users. Frequent pattern mining is researched area in the area of data mining. Using frequent pattern discovery methods in Web log data can result into good practices. Discovering hidden information from Web log data is called Web usage mining. the use of advertising purposes in creating dynamic user profiles etc. in this paper three pattern mining approaches are investigated from the Web usage mining point of view. the different patterns in Web log mining are page sets, page sequences and page graphs.

关键词： Blogs Clustering algorithms Web mining Navigation UsA Councils Partitioning algorithms

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Measurement of the Λb0 lifetime and mass in the AtLAs experiment

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Physical Review D 2013年第3期87卷 032002-032002页

作者： G. Aad t. Abajyan B. Abbott J. Abdallah s. Abdel Khalek A. A. Abdelalim O. Abdinov R. Aben B. Abi M. Abolins O. s. AbouZeid H. Abramowicz H. Abreu E. Acerbi B. s. Acharya L. Adamczyk D. L. Adams t. N. Addy J. Adelman s. Adomeit P. Adragna t. Adye s. Aefsky J. A. Aguilar-saavedra M. Agustoni M. Aharrouche s. P. Ahlen F. Ahles A. Ahmad M. Ahsan G. Aielli t. Akdogan t. P. A. Åkesson G. Akimoto A. V. Akimov M. s. Alam M. A. Alam J. Albert s. Albrand M. Aleksa i. N. Aleksandrov F. Alessandria C. Alexa G. Alexander G. Alexandre t. Alexopoulos M. Alhroob M. Aliev G. Alimonti J. Alison B. M. M. Allbrooke P. P. Allport s. E. Allwood-spiers J. Almond A. Aloisio R. Alon A. Alonso F. Alonso B. Alvarez Gonzalez M. G. Alviggi K. Amako C. Amelung V. V. Ammosov A. Amorim N. Amram C. Anastopoulos L. s. Ancu N. Andari t. Andeen C. F. Anders G. Anders K. J. Anderson A. Andreazza V. Andrei X. s. Anduaga P. Anger A. Angerami F. Anghinolfi A. Anisenkov N. Anjos A. Annovi A. Antonaki M. Antonelli A. Antonov J. Antos F. Anulli M. Aoki s. Aoun L. Aperio Bella R. Apolle G. Arabidze i. Aracena Y. Arai A. t. H. Arce s. Arfaoui J-F. Arguin E. Arik M. Arik A. J. Armbruster O. Arnaez V. Arnal C. Arnault A. Artamonov G. Artoni D. Arutinov s. Asai R. Asfandiyarov s. Ask B. Åsman L. Asquith K. Assamagan A. Astbury B. Aubert E. Auge K. Augsten M. Aurousseau G. Avolio R. Avramidou D. Axen G. Azuelos Y. Azuma M. A. Baak G. Baccaglioni C. Bacci A. M. Bach H. Bachacou K. Bachas M. Backes M. Backhaus E. Badescu P. Bagnaia s. Bahinipati Y. Bai D. C. Bailey t. Bain J. t. Baines O. K. Baker M. D. Baker s. Baker E. Banas P. Banerjee sw. Banerjee D. Banfi A. Bangert V. Bansal H. s. Bansil L. Barak s. P. Baranov A. Barbaro Galtieri t. Barber E. L. Barberio D. Barberis M. Barbero D. Y. Bardin t. Barillari M. Barisonzi t. Barklow N. Barlow B. M. Barnett R. M. Barnett A. Baroncelli G. Barone A. J. Barr F. Barreiro J. Barreiro Guimarães da Costa P. Barrillon R. Bartoldus A. E. Barton V. Bartsch R. L. Bates L. Batkova J. R. Batley A. Battaglia M. Battistin F. Bau Fakultät für Mathematik und Physik Albert-Ludwigs-Universität Freiburg Germany Physikalisches Institut University of Bonn Bonn Germany Homer L. Dodge Department of Physics and Astronomy University of Oklahoma Norman Oklahoma USA Institut de Física d’Altes Energies and Departament de Física de la Universitat Autònoma de Barcelona and ICREA Barcelona Spain LAL Université Paris-Sud and CNRS/IN2P3 Orsay France Section de Physique Université de Genève Geneva Switzerland Institute of Physics Azerbaijan Academy of Sciences Baku Azerbaijan Nikhef National Institute for Subatomic Physics and University of Amsterdam Amsterdam Netherlands Department of Physics Oklahoma State University Stillwater Oklahoma USA Department of Physics and Astronomy Michigan State University East Lansing Michigan USA Department of Physics University of Toronto Toronto Ontario Canada Raymond and Beverly Sackler School of Physics and Astronomy Tel Aviv University Tel Aviv Israel DSM/IRFU (Institut de Recherches sur les Lois Fondamentales de l’Univers) CEA Saclay (Commissariat a l’Energie Atomique) Gif-sur-Yvette France INFN Sezione di Milano Italy Dipartimento di Fisica Università di Milano Milano Italy INFN Gruppo Collegato di Udine Italy ICTP Trieste Italy AGH University of Science and Technology Faculty of Physics and Applied Computer Science Krakow Poland Physics Department Brookhaven National Laboratory Upton New York USA Department of Physics Hampton University Hampton Virginia USA Department of Physics Yale University New Haven Connecticut USA Fakultät für Physik Ludwig-Maximilians-Universität München München Germany School of Physics and Astronomy Queen Mary University of London London United Kingdom Particle Physics Department Rutherford Appleton Laboratory Didcot United Kingdom Department of Physics Brandeis University Waltham Massachusetts USA Departamento de Fisica Teorica y del Cosmos and CAFPE Universidad de Granada Granada Spain Albert Einstein Center for

A measurement of the Λb0 lifetime and mass in the decay channel Λb0→J/ψ(μ+μ−)Λ0(pπ−) is presented. the analysis uses a signal sample of about 2200 Λb0 and Λ¯b0 decays that are reconstructed in 4.9 fb−1 of AtLAs pp collision data collected in 2011 at the LHC center-of-mass energy of 7 teV. A simultaneous mass and decay time maximum likelihood fit is used to extract the Λb0 lifetime and mass. they are measured to be τΛb=1.449±0.036(stat)±0.017(syst) ps and mΛb=5619.7±0.7(stat)±1.1(syst) MeV.

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