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  1. Book ; Online: G-NetMon

    Wu, Wenji / DeMar, Phil / Holmgren, Don / Singh, Amitoj / Pordes, Ruth

    A GPU-accelerated Network Performance Monitoring System for Large Scale Scientific Collaborations

    2011  

    Abstract: Network traffic is difficult to monitor and analyze, especially in high-bandwidth networks. Performance analysis, in particular, presents extreme complexity and scalability challenges. GPU (Graphics Processing Unit) technology has been utilized recently ... ...

    Abstract Network traffic is difficult to monitor and analyze, especially in high-bandwidth networks. Performance analysis, in particular, presents extreme complexity and scalability challenges. GPU (Graphics Processing Unit) technology has been utilized recently to accelerate general purpose scientific and engineering computing. GPUs offer extreme thread-level parallelism with hundreds of simple cores. Their data-parallel execution model can rapidly solve large problems with inherent data parallelism. At Fermilab, we have prototyped a GPU-accelerated network performance monitoring system, called G-NetMon, to support large-scale scientific collaborations. In this work, we explore new opportunities in network traffic monitoring and analysis with GPUs. Our system exploits the data parallelism that exists within network flow data to provide fast analysis of bulk data movement between Fermilab and collaboration sites. Experiments demonstrate that our G-NetMon can rapidly detect sub-optimal bulk data movements.
    Keywords Computer Science - Networking and Internet Architecture
    Subject code 006
    Publishing date 2011-08-08
    Publishing country us
    Document type Book ; Online
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  2. Article: Stéatose aiguë gravidique ou septicémie chez une primipare au 3e trimestre de la grossesse.

    Coliche, V / Debat, J / Prevost, A G / Bataille, P / Pordes, R

    Presse medicale (Paris, France : 1983)

    1986  Volume 15, Issue 2, Page(s) 80

    Title translation Acute fatty liver of pregnancy or septicemia in a primipara in her 3rd trimester of pregnancy.
    MeSH term(s) Adult ; Diagnosis, Differential ; Escherichia coli Infections/diagnosis ; Fatty Liver/diagnosis ; Female ; Humans ; Pregnancy ; Pregnancy Complications/diagnosis ; Pregnancy Trimester, Third ; Sepsis/diagnosis
    Language French
    Publishing date 1986-01-18
    Publishing country France
    Document type Case Reports ; Letter
    ZDB-ID 120943-7
    ISSN 2213-0276 ; 0755-4982 ; 0032-7867 ; 0301-1518
    ISSN (online) 2213-0276
    ISSN 0755-4982 ; 0032-7867 ; 0301-1518
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  3. Article: Nadroparin in the prevention of deep vein thrombosis in acute decompensated COPD. The Association of Non-University Affiliated Intensive Care Specialist Physicians of France.

    Fraisse, F / Holzapfel, L / Couland, J M / Simonneau, G / Bedock, B / Feissel, M / Herbecq, P / Pordes, R / Poussel, J F / Roux, L

    American journal of respiratory and critical care medicine

    2000  Volume 161, Issue 4 Pt 1, Page(s) 1109–1114

    Abstract: Low molecular weight heparins are as effective as unfractionated heparin in deep-vein thrombosis (DVT) prophylaxis for major surgery. However, there is no evidence nor consensus for prophylaxis in medical patients. We compared the efficacy and safety of ... ...

    Abstract Low molecular weight heparins are as effective as unfractionated heparin in deep-vein thrombosis (DVT) prophylaxis for major surgery. However, there is no evidence nor consensus for prophylaxis in medical patients. We compared the efficacy and safety of nadroparin calcium (nadroparin) with placebo in medical patients at high risk of DVT. A total of 223 patients mechanically ventilated for acute, decompensated chronic obstructive pulmonary disease, were randomized to treatment with subcutaneous nadroparin adjusted for body weight (0.4 ml, i.e., 3,800 AXa IU, or 0.6 ml, i.e., 5,700 AXa IU) or placebo. The average duration of treatment was 11 d. The incidence of DVT in patients receiving nadroparin was significantly lower than that in patients receiving placebo (15.5 versus 28.2%; p = 0.045). Although the incidence of adverse events was high in both groups, there were no significant differences between nadroparin and placebo for total adverse events (46.3 versus 39.8%; p = 0.33), serious adverse events (25.0 versus 19.5%; p = 0.32), or those resulting in early permanent discontinuation of treatment (12.0 versus 8.8%; p = 0.44). The most common adverse event was hemorrhage. There was the same number of deaths in both treatment groups. Subcutaneous nadroparin resulted in 45% decrease in incidence of DVT compared with placebo.
    MeSH term(s) Aged ; Anticoagulants/therapeutic use ; Double-Blind Method ; Female ; Humans ; Incidence ; Injections, Subcutaneous ; Lung Diseases, Obstructive/therapy ; Male ; Nadroparin/therapeutic use ; Placebos ; Prospective Studies ; Respiration, Artificial ; Risk Factors ; Treatment Outcome ; Venous Thrombosis/epidemiology ; Venous Thrombosis/prevention & control
    Chemical Substances Anticoagulants ; Nadroparin ; Placebos
    Language English
    Publishing date 2000-04
    Publishing country United States
    Document type Clinical Trial ; Journal Article ; Multicenter Study ; Randomized Controlled Trial ; Research Support, Non-U.S. Gov't
    ZDB-ID 1180953-x
    ISSN 1535-4970 ; 1073-449X ; 0003-0805
    ISSN (online) 1535-4970
    ISSN 1073-449X ; 0003-0805
    DOI 10.1164/ajrccm.161.4.9807025
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  4. Article: Mechanical Ventilator Milano (MVM): A Novel Mechanical Ventilator Designed for Mass Scale Production in Response to the COVID-19 Pandemic

    Galbiati, C. / Abba, A. / Agnes, P. / Amaudruz, P. / Arba, M. / Ardellier-Desages, F. / Badia, C. / Batignani, G. / Bellani, G. / Bianchi, G. / Bishop, D. / Bocci, V. / Bonivento, W. / Bottino, B. / Bouchard, M. / Brice, S. / Buccino, G. / Bussino, S. / Caminata, A. /
    Capra, A. / Caravati, M. / Carlini, M. / Carrozzi, L. / Cela, J. M. / Celano, B. / Charette, C. / Coelli, S. / Constable, M. / Cocco, V. / Croci, G. / Cudmore, S. / Molin, A. Dal / D'Auria, S. / D'Avenio, G. / DeRuiter, J. / Cecco, S. De / Lauretis, L. De / Tutto, M. Del / Devoto, A. / Dinon, T. / Druszkiewicz, E. / Fabbri, A. / Ferroni, F. / Fiorillo, G. / Ford, R. / Foti, G. / Franco, D. / Gabriele, F. / Abia, P. Garcia / Giarratana, L. S. / Givoletti, J. / Givoletti, Mi. / Gorini, G. / Gramellini, E. / Grosso, G. / Guescini, F. / Guetre, E. / Hadden, T. / Hall, J. / Heavey, A. / Hersak, G. / Hessey, N. / Ianni, An. / Ienzi, C. / Ippolito, V. / Kendziora, C. L. / King, M. / Kittmer, A. / Kochanek, I. / Kruecken, R. / Commara, M. La / Leblond, G. / Li, X. / Lim, C. / Lindner, T. / Lombardi, T. / Long, T. / Lu, P. / Lukhanin, G. / Magni, G. / Maharaj, R. / Malosio, M. / Mapelli, C. / Maqueo, P. / Margetak, P. / Mari, S. M. / Martin, L. / Massacret, N. / McDonald, A. / Minuzzo, D. / Mohayai, T. A. / Tosatti, L. Molinari / Moretti, C. / Muraro, A. / Nati, F. / Noble, A. J. / Norrick, A. / Olchanski, K. / Palumbo, I. / Paoletti, R. / Paoli, N. / Pearson, C. / Pellegrino, C. / Pesudo, V. / Pocar, A. / Pontesilli, M. / Pordes, R. / Pordes, S. / Prini, A. / Putignano, O. / Raaf, J. L. / Razeti, M. / Razeto, A. / Reed, D. / Renshaw, A. / Rescigno, M. / Retiere, F. / Rignanese, L. P. / Rode, J. / Romualdez, L. J. / Santorelli, R. / Sablone, D. / Scapparone, E. / Schaubel, T. / Shaw, B. / Slutsky, A. S. / Smith, B. / Smith, N.J.T. / Spagnolo, P. / Spinella, F. / Stenzler, A. / Steri, A. / Stiaccini, L. / Stoughton, C. / Stringari, P. / Tardocchi, M. / Tartaglia, R. / Testera, G. / Tintori, C. / Tonazzo, A. / Tseng, J. / Viscione, E. / Vivaldi, F. / Wada, M. / Wang, H. / Westerdale, S. / Yue, S. / Zardoni, A.

    Abstract: Presented here is the design of the Mechanical Ventilator Milano (MVM), a novel mechanical ventilator designed for rapid mass production in response to the COVID-19 pandemic to address the urgent shortage of intensive therapy ventilators in many ... ...

    Abstract Presented here is the design of the Mechanical Ventilator Milano (MVM), a novel mechanical ventilator designed for rapid mass production in response to the COVID-19 pandemic to address the urgent shortage of intensive therapy ventilators in many countries, and the growing difficulty in procuring these devices through normal supply chains across borders. This ventilator is an electro-mechanical equivalent of the old and reliable Manley Ventilator, and is able to operate in both pressure-controlled and pressure-supported ventilation modes. MVM is optimized for the COVID-19 emergency, thanks to the collaboration with medical doctors in the front line. MVM is designed for large-scale production in a short amount of time and at a limited cost, as it relays on off-the-shelf components, readily available worldwide. Operation of the MVM requires only a source of compressed oxygen (or compressed medical air) and electrical power. Initial tests of a prototype device with a breathing simulator are also presented. Further tests and developments are underway. At this stage the MVM is not yet a certified medical device but certification is in progress.
    Keywords covid19
    Publisher ArXiv
    Document type Article
    Database COVID19

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  5. Book ; Online: Mechanical Ventilator Milano (MVM)

    Galbiati, C. / Abba, A. / Agnes, P. / Amaudruz, P. / Arba, M. / Ardellier-Desages, F. / Badia, C. / Batignani, G. / Bellani, G. / Bianchi, G. / Bishop, D. / Bocci, V. / Bonivento, W. / Bottino, B. / Bouchard, M. / Brice, S. / Buccino, G. / Bussino, S. / Caminata, A. /
    Capra, A. / Caravati, M. / Carlini, M. / Carrozzi, L. / Cela, J. M. / Celano, B. / Charette, C. / Coelli, S. / Constable, M. / Cocco, V. / Croci, G. / Cudmore, S. / Molin, A. Dal / D'Auria, S. / D'Avenio, G. / DeRuiter, J. / De Cecco, S. / De Lauretis, L. / Del Tutto, M. / Devoto, A. / Dinon, T. / Druszkiewicz, E. / Fabbri, A. / Ferroni, F. / Fiorillo, G. / Ford, R. / Foti, G. / Franco, D. / Gabriele, F. / Abia, P. Garcia / Giarratana, L. S. / Givoletti, J. / Givoletti, Mi. / Gorini, G. / Gramellini, E. / Grosso, G. / Guescini, F. / Guetre, E. / Hadden, T. / Hall, J. / Heavey, A. / Hersak, G. / Hessey, N. / Ianni, An. / Ienzi, C. / Ippolito, V. / Kendziora, C. L. / King, M. / Kittmer, A. / Kochanek, I. / Kruecken, R. / La Commara, M. / Leblond, G. / Li, X. / Lim, C. / Lindner, T. / Lombardi, T. / Long, T. / Lu, P. / Lukhanin, G. / Magni, G. / Maharaj, R. / Malosio, M. / Mapelli, C. / Maqueo, P. / Margetak, P. / Mari, S. M. / Martin, L. / Massacret, N. / McDonald, A. / Minuzzo, D. / Mohayai, T. A. / Tosatti, L. Molinari / Moretti, C. / Muraro, A. / Nati, F. / Noble, A. J. / Norrick, A. / Olchanski, K. / Palumbo, I. / Paoletti, R. / Paoli, N. / Pearson, C. / Pellegrino, C. / Pesudo, V. / Pocar, A. / Pontesilli, M. / Pordes, R. / Pordes, S. / Prini, A. / Putignano, O. / Raaf, J. L. / Razeti, M. / Razeto, A. / Reed, D. / Renshaw, A. / Rescigno, M. / Retiere, F. / Rignanese, L. P. / Rode, J. / Romualdez, L. J. / Santorelli, R. / Sablone, D. / Scapparone, E. / Schaubel, T. / Shaw, B. / Slutsky, A. S. / Smith, B. / Smith, N. J. T. / Spagnolo, P. / Spinella, F. / Stenzler, A. / Steri, A. / Stiaccini, L. / Stoughton, C. / Stringari, P. / Tardocchi, M. / Tartaglia, R. / Testera, G. / Tintori, C. / Tonazzo, A. / Tseng, J. / Viscione, E. / Vivaldi, F. / Wada, M. / Wang, H. / Westerdale, S. / Yue, S. / Zardoni, A.

    A Novel Mechanical Ventilator Designed for Mass Scale Production in Response to the COVID-19 Pandemic

    2020  

    Abstract: Presented here is the design of the Mechanical Ventilator Milano (MVM), a novel mechanical ventilator designed for rapid mass production in response to the COVID-19 pandemic to address the urgent shortage of intensive therapy ventilators in many ... ...

    Abstract Presented here is the design of the Mechanical Ventilator Milano (MVM), a novel mechanical ventilator designed for rapid mass production in response to the COVID-19 pandemic to address the urgent shortage of intensive therapy ventilators in many countries, and the growing difficulty in procuring these devices through normal supply chains across borders. This ventilator is an electro-mechanical equivalent of the old and reliable Manley Ventilator, and is able to operate in both pressure-controlled and pressure-supported ventilation modes. MVM is optimized for the COVID-19 emergency, thanks to the collaboration with medical doctors in the front line. MVM is designed for large-scale production in a short amount of time and at a limited cost, as it relays on off-the-shelf components, readily available worldwide. Operation of the MVM requires only a source of compressed oxygen (or compressed medical air) and electrical power. Initial tests of a prototype device with a breathing simulator are also presented. Further tests and developments are underway. At this stage the MVM is not yet a certified medical device but certification is in progress.
    Keywords Physics - Medical Physics ; covid19
    Subject code 670
    Publishing date 2020-03-23
    Publishing country us
    Document type Book ; Online
    Database BASE - Bielefeld Academic Search Engine (life sciences selection)

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  6. Article: Radiative decay width measurements of neutral kaon excitations using the primakoff effect.

    Alavi-Harati, A / Alexopoulos, T / Arenton, M / Arisaka, K / Averitte, S / Barbosa, R F / Barker, A R / Barrio, M / Bellantoni, L / Bellavance, A / Belz, J / Bergman, D R / Blucher, E / Bock, G J / Bown, C / Bright, S / Cheu, E / Childress, S / Coleman, R /
    Corcoran, M D / Corti, G / Cox, B / Cunha, A / Erwin, A R / Ford, R / Glazov, A / Golossanov, A / Graham, G / Graham, J / Halkiadakis, E / Hamm, J / Hanagaki, K / Hidaka, S / Hsiung, Y B / Jejer, V / Jensen, D A / Kessler, R / Kobrak, H G E / LaDue, J / Lath, A / Ledovskoy, A / McBride, P L / Medvigy, D / Mikelsons, P / Monnier, E / Nakaya, T / Nelson, K S / Nguyen, H / O'Dell, V / Pordes, R / Prasad, V / Qi, X R / Quinn, B / Ramberg, E J / Ray, R E / Roodman, A / Schnetzer, S / Senyo, K / Shanahan, P / Shawhan, P S / Shields, J / Slater, W / Solomey, N / Somalwar, S V / Stone, R L / Swallow, E C / Taegar, S A / Tesarek, R J / Thomson, G B / Toale, P A / Tripathi, A / Tschirhart, R / Turner, S E / Wah, Y W / Wang, J / White, H B / Whitmore, J / Winstein, B / Winston, R / Yamanaka, T / Zimmerman, E D

    Physical review letters

    2002  Volume 89, Issue 7, Page(s) 72001

    Abstract: We use K(L)'s in the 100-200 GeV energy range to produce 147 candidate events of the axial vector pair K1(1270)-K1(1400) in the nuclear Coulomb field of a Pb target and determine the radiative widths Gamma(K1(1400)-->K0+gamma)=280.8+/-23.2(stat)+/-40.4( ... ...

    Abstract We use K(L)'s in the 100-200 GeV energy range to produce 147 candidate events of the axial vector pair K1(1270)-K1(1400) in the nuclear Coulomb field of a Pb target and determine the radiative widths Gamma(K1(1400)-->K0+gamma)=280.8+/-23.2(stat)+/-40.4(syst) keV and Gamma(K1(1270)-->K0+gamma)=73.2+/-6.1(stat)+/-28.3(syst) keV. These first measurements appear to be lower than the quark-model predictions. We also place upper limits on the radiative widths for K(*)(1410) and K(*)(2)(1430) and find that the latter is vanishingly small in accord with SU(3) invariance in the naive quark model.
    Language English
    Publishing date 2002-08-12
    Publishing country United States
    Document type Journal Article
    ZDB-ID 208853-8
    ISSN 1079-7114 ; 0031-9007
    ISSN (online) 1079-7114
    ISSN 0031-9007
    DOI 10.1103/PhysRevLett.89.072001
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  7. Article: Measurement of the K(L) charge asymmetry.

    Alavi-Harati, A / Alexopoulos, T / Arenton, M / Arisaka, K / Averitte, S / Barbosa, R F / Barker, A R / Barrio, M / Bellantoni, L / Bellavance, A / Belz, J / Ben-David, R / Bergman, D R / Blucher, E / Bock, G J / Bown, C / Bright, S / Cheu, E / Childress, S /
    Coleman, R / Corcoran, M D / Corti, G / Cox, B / Crisler, M B / Erwin, A R / Ford, R / Glazov, A / Golossanov, A / Graham, G / Graham, J / Hagan, K / Halkiadakis, E / Hamm, J / Hanagaki, K / Hidaka, S / Hsiung, Y B / Jejer, V / Jensen, D A / Kessler, R / Kobrak, H G E / LaDue, J / Lath, A / Ledovskoy, A / McBride, P L / Mikelsons, P / Monnier, E / Nakaya, T / Nelson, K S / Nguyen, H / O'Dell, V / Pang, M / Pordes, R / Prasad, V / Qi, X R / Quinn, B / Ramberg, E J / Ray, R E / Roodman, A / Sadamoto, M / Schnetzer, S / Senyo, K / Shanahan, P / Shawhan, P S / Shields, J / Slater, W / Solomey, N / Somalwar, S V / Stone, R L / Swallow, E C / Taegar, S A / Tesarek, R J / Thomson, G B / Toale, P A / Tripathi, A / Tschirhart, R / Turner, S E / Wah, Y W / Wang, J / White, H B / Whitmore, J / Winstein, B / Winston, R / Yamanaka, T / Zimmerman, E D

    Physical review letters

    2002  Volume 88, Issue 18, Page(s) 181601

    Abstract: We present a measurement of the charge asymmetry delta(L) in the mode K(L)-->pi(+/-)e(-/+)nu based on 298 x 10(6) analyzed decays. We measure a value of delta(L) = [3322+/-58(stat)+/-47(syst)]x10(-6), in good agreement with previous measurements and 2.4 ... ...

    Abstract We present a measurement of the charge asymmetry delta(L) in the mode K(L)-->pi(+/-)e(-/+)nu based on 298 x 10(6) analyzed decays. We measure a value of delta(L) = [3322+/-58(stat)+/-47(syst)]x10(-6), in good agreement with previous measurements and 2.4 times more precise than the current best published result. The result is used to place more stringent limits on CPT and DeltaS = DeltaQ violation in the neutral kaon system.
    Language English
    Publishing date 2002-05-06
    Publishing country United States
    Document type Journal Article
    ZDB-ID 208853-8
    ISSN 1079-7114 ; 0031-9007
    ISSN (online) 1079-7114
    ISSN 0031-9007
    DOI 10.1103/PhysRevLett.88.181601
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  8. Article: Search for the KL-->pi 0 pi 0 e+e- decay in the KTeV experiment.

    Alavi-Harati, A / Alexopoulos, T / Arenton, M / Arisaka, K / Averitte, S / Barbosa, R F / Barker, A R / Barrio, M / Bellantoni, L / Bellavance, A / Belz, J / Bergman, D R / Blucher, E / Bock, G J / Bown, C / Bright, S / Cheu, E / Childress, S / Coleman, R /
    Corcoran, M D / Corti, G / Cox, B / Erwin, A R / Ford, R / Glazov, A / Golossanov, A / Graham, G / Graham, J / Halkiadakis, E / Hamm, J / Hanagaki, K / Hidaka, S / Hsiung, Y B / Jejer, V / Jensen, D A / Kessler, R / Kobrak, H G E / LaDue, J / Lath, A / Ledovskoy, A / McBride, P L / Mikelsons, P / Monnier, E / Nakaya, T / Nelson, K S / Nguyen, H / O'Dell, V / Pordes, R / Prasad, V / Qi, X R / Quinn, B / Ramberg, E J / Ray, R E / Roodman, A / Schnetzer, S / Senyo, K / Shanahan, P / Shawhan, P S / Shields, J / Slater, W / Solomey, N / Somalwar, S V / Stone, R L / Swallow, E C / Taegar, S A / Tesarek, R J / Thomson, G B / Toale, P A / Tripathi, A / Tschirhart, R / Turner, S E / Wah, Y W / Wang, J / White, H B / Whitmore, J / Winstein, B / Winston, R / Yamanaka, T / Zimmerman, E D

    Physical review letters

    2002  Volume 89, Issue 21, Page(s) 211801

    Abstract: The recent discovery of a large CP violating asymmetry in KL-->pi+pi-e+e- mode has prompted us to seach for the associated KL-->pi 0 pi 0 e+e- decay mode in the KTeV-E799 experiment at Fermilab. In 2.7 x 10(11) K(L) decays, one candidate event has been ... ...

    Abstract The recent discovery of a large CP violating asymmetry in KL-->pi+pi-e+e- mode has prompted us to seach for the associated KL-->pi 0 pi 0 e+e- decay mode in the KTeV-E799 experiment at Fermilab. In 2.7 x 10(11) K(L) decays, one candidate event has been observed with an expected background of 0.3 event, resulting in an upper limit for the KL-->pi 0 pi 0 e+e- branching ratio of 6.6 x 10(-9) at the 90% C.L.
    Language English
    Publishing date 2002-11-18
    Publishing country United States
    Document type Journal Article
    ZDB-ID 208853-8
    ISSN 1079-7114 ; 0031-9007
    ISSN (online) 1079-7114
    ISSN 0031-9007
    DOI 10.1103/PhysRevLett.89.211801
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  9. Article: Measurements of the rare decay K(L) --> e(+)e(-)e(+)e(-).

    Alavi-Harati, A / Alexopoulos, T / Arenton, M / Arisaka, K / Averitte, S / Barker, A R / Bellantoni, L / Bellavance, A / Belz, J / Ben-David, R / Bergman, D R / Blucher, E / Bock, G J / Bown, C / Bright, S / Cheu, E / Childress, S / Coleman, R / Corcoran, M D /
    Corti, G / Cox, B / Crisler, M B / Erwin, A R / Ford, R / Glazov, A / Golossanov, A / Graham, G / Graham, J / Hagan, K / Halkiadakis, E / Hamm, J / Hanagaki, K / Hidaka, S / Hsiung, Y B / Jejer, V / Jensen, D A / Kessler, R / Kobrak, H G / LaDue, J / Lath, A / Ledovskoy, A / McBride, P L / Mikelsons, P / Monnier, E / Nakaya, T / Nelson, K S / Nguyen, H / O'Dell, V / Pang, M / Pordes, R / Prasad, V / Quinn, B / Ramberg, E J / Ray, R E / Roodman, A / Sadamoto, M / Schnetzer, S / Senyo, K / Shanahan, P / Shawhan, P S / Shields, J / Slater, W / Solomey, N / Somalwar, S V / Stone, R L / Swallow, E C / Taegar, S A / Tesarek, R J / Thomson, G B / Toale, P A / Tripathi, A / Tschirhart, R / Turner, S E / Wah, Y W / Wang, J / White, H B / Whitmore, J / Winstein, B / Winston, R / Yamanaka, T / Zimmerman, E D

    Physical review letters

    2001  Volume 86, Issue 24, Page(s) 5425–5429

    Abstract: We observe 441 K(L)-->e(+)e(-)e(+)e(-) candidate events with a background of 4.2 events and measure B(K(L)-->e(+)e(-)e(+)e(-)) = [3.72+/-0.18(stat)+/-0.23(syst)]x10(-8) in the KTeV/E799II experiment at Fermilab. Using the distribution of the angle ... ...

    Abstract We observe 441 K(L)-->e(+)e(-)e(+)e(-) candidate events with a background of 4.2 events and measure B(K(L)-->e(+)e(-)e(+)e(-)) = [3.72+/-0.18(stat)+/-0.23(syst)]x10(-8) in the KTeV/E799II experiment at Fermilab. Using the distribution of the angle between the planes of the e(+)e(-) pairs, we measure the CP parameters beta(CP) = -0.23+/-0.09(stat)+/-0.02(syst) and gamma(CP) = -0.09+/-0.09(stat)+/-0.02(syst). We also present the first detailed study of the e(+)e(-) invariant mass spectrum in this decay mode.
    Language English
    Publishing date 2001-06-11
    Publishing country United States
    Document type Journal Article
    ZDB-ID 208853-8
    ISSN 1079-7114 ; 0031-9007
    ISSN (online) 1079-7114
    ISSN 0031-9007
    DOI 10.1103/PhysRevLett.86.5425
    Database MEDical Literature Analysis and Retrieval System OnLINE

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  10. Article: Measurement of the branching ratio and asymmetry of the decay Xi degrees -->Sigma degrees gamma.

    Alavi-Harati, A / Alexopoulos, T / Arenton, M / Arisaka, K / Averitte, S / Barker, A R / Bellantoni, L / Bellavance, A / Belz, J / Ben-David, R / Bergman, D R / Blucher, E / Bock, G J / Bown, C / Bright, S / Cheu, E / Childress, S / Coleman, R / Corcoran, M D /
    Corti, G / Cox, B / Crisler, M B / Erwin, A R / Ford, R / Glazov, A / Golossanov, A / Graham, G / Graham, J / Hagan, K / Halkiadakis, E / Hamm, J / Hanagaki, K / Hidaka, S / Hsiung, Y B / Jejer, V / Jensen, D A / Kessler, R / Kobrak, H G / LaDue, J / Lath, A / Ledovskoy, A / McBride, P L / Mikelsons, P / Monnier, E / Nakaya, T / Nelson, K S / Nguyen, H / O'Dell, V / Pang, M / Pordes, R / Prasad, V / Quinn, B / Ramberg, E J / Ray, R E / Roodman, A / Sadamoto, M / Schnetzer, S / Senyo, K / Shanahan, P / Shawhan, P S / Shields, J / Slater, W / Solomey, N / Somalwar, S V / Stone, R L / Suzuki, I / Swallow, E C / Taegar, S A / Tesarek, R J / Thomson, G B / Toale, P A / Tripathi, A / Tschirhart, R / Turner, S E / Wah, Y W / Wang, J / White, H B / Whitmore, J / Winstein, B / Winston, R / Yamanaka, T / Zimmerman, E D

    Physical review letters

    2001  Volume 86, Issue 15, Page(s) 3239–3243

    Abstract: We have studied the rare weak radiative hyperon decay Xi degrees -->Sigma degrees gamma in the KTeV experiment at Fermilab. We have identified 4045 signal events over a background of 804 events. The dominant Xi degrees -->Lambdapi degrees decay, which ... ...

    Abstract We have studied the rare weak radiative hyperon decay Xi degrees -->Sigma degrees gamma in the KTeV experiment at Fermilab. We have identified 4045 signal events over a background of 804 events. The dominant Xi degrees -->Lambdapi degrees decay, which was used for normalization, is the only important background source. An analysis of the acceptance of both modes yields a branching ratio of B(Xi degrees -->Sigma degrees gamma)/B(Xi degrees -->Lambdapi degrees ) = (3.34+/-0.05+/-0.09)x10(-3). By analyzing the final state decay distributions, we have also determined that the Sigma degrees emission asymmetry parameter for this decay is alpha(XiSigma) = -0.63+/-0.09.
    Language English
    Publishing date 2001-04-09
    Publishing country United States
    Document type Journal Article
    ZDB-ID 208853-8
    ISSN 1079-7114 ; 0031-9007
    ISSN (online) 1079-7114
    ISSN 0031-9007
    DOI 10.1103/PhysRevLett.86.3239
    Database MEDical Literature Analysis and Retrieval System OnLINE

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