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Dr Andre Sopczak

Formerly at Lancaster University

  1. Published

    A measurement of the branching fractions of the b-quark into charged and neutral b-hadrons.

    DELPHI Collaboration, ., Abdallah, J., Abreu, P., Adam, W., Adzic, P., Albrecht, T., Alderweireld, T., Alemany-Fernandez, R., Allmendinger, T., Allport, P. P., Amaldi, U., Amapane, N., Amato, S., Anashkin, E., Andreazza, A., Andringa, S., Anjos, N., Antilogus, P., Apel, W. -D., Arnoud, Y., & 1 othersSopczak, A. . E. A., 2/12/2003, In: Physics Letters B. 756, 1-2, p. 29-42 14 p.

    Research output: Contribution to Journal/MagazineJournal articlepeer-review

  2. Published

    Measurement of the e+ e- ---> W+ W- gamma cross-section and limits on anomalous quartic gauge couplings with DELPHI.

    DELPHI Collaboration, ., Abdallah, J., Sopczak, A. & Borrisov, G. . E. A., 11/2003, In: European Physical Journal C: Particles and Fields. 31, 2, p. 139-147 9 p.

    Research output: Contribution to Journal/MagazineJournal articlepeer-review

  3. Published

    Measurement of inclusive f1(1285) and f1(1420) production in Z decays with the DELPHI detector.

    DELPHI Collaboration, ., Abdallah, J., Sopczak, A. & Borrisov, G. . E. A., 11/09/2003, In: Physics Letters B. 569, 3-4, p. 129-139 11 p.

    Research output: Contribution to Journal/MagazineJournal articlepeer-review

  4. Published

    Study of inclusive J/ψ production in two-photon collisions at LEP II with the DELPHI detector.

    DELPHI Collaboration, ., Abdallah, J., Sopczak, A. & Borrisov, G. . E. A., 17/07/2003, In: Physics Letters B. 565, p. 76-86 11 p.

    Research output: Contribution to Journal/MagazineJournal articlepeer-review

  5. Published

    ZZ production in e + e - interactions at S**(1/2)=183-209 GeV.

    DELPHI Collaboration, ., Abdallah, J., Sopczak, A. & Borrisov, G. . E. A., 4/10/2003, In: European Physical Journal C: Particles and Fields. 30, 4, p. 447-466 20 p.

    Research output: Contribution to Journal/MagazineJournal articlepeer-review

  6. Published

    Determination of the e+ e- ! Gamma (gamma) cross-section at LEP 2.

    DELPHI Collaboration, T., Borisov, G. & Sopczak, A., 11/2004, In: European Physical Journal C: Particles and Fields. 37, 4, p. 405-419 15 p.

    Research output: Contribution to Journal/MagazineJournal articlepeer-review

  7. Published

    The measurement of alpha(s) from event shapes with the DELPHI detector at the highest LEP energies.

    DELPHI Collaboration, T., Borisov, G. & Sopczak, A., 09/2004, In: European Physical Journal C: Particles and Fields. 37, 1, p. 1-23 23 p.

    Research output: Contribution to Journal/MagazineJournal articlepeer-review

  8. Published

    Measurement of |V(cb)| using the semileptonic decay anti-B/d0 ! D*+1- anti-nu/1.

    DELPHI Collaboration, T., Borisov, G. & Sopczak, A., 03/2004, In: European Physical Journal C: Particles and Fields. 33, 2, p. 213-232 20 p.

    Research output: Contribution to Journal/MagazineJournal articlepeer-review

  9. Published

    Searches for neutral Higgs bosons in extended models.

    DELPHI Collaboration, T., Borissov, G. & Sopczak, A., 12/2004, In: European Physical Journal C: Particles and Fields. 38, 1, p. 1-28 28 p.

    Research output: Contribution to Journal/MagazineJournal articlepeer-review

  10. Published

    Measurement of sigma(p[overline p]-->Z)·Br(Z-->tautau) at sqrt(s)=1.96 TeV

    DO Collaboration, T., Bertram, I. A., Borissov, G. V., Ratoff, P. N. & Sopczak, A., 04/2005, In: Physical Review D. 71, 7, p. 072004

    Research output: Contribution to Journal/MagazineJournal articlepeer-review

  11. Published

    Helicity of the W boson in lepton +jets t ¯t events

    DO Collaboration, T., Bertram, I. A., Borissov, G. V., Ratoff, P. N. & Sopczak, A., 26/06/2005, In: Physics Letters B. 617, 1-2, p. 1-10 10 p.

    Research output: Contribution to Journal/MagazineJournal articlepeer-review

  12. Published

    Measurement of Dijet Azimuthal Decorrelations at Central Rapidities in p Collisions at =1.96 TeV

    DO Collaboration, T., Bertram, I. A., Borissov, G. V., Ratoff, P. N. & Sopczak, A., 10/06/2005, In: Physical review letters. 94, 22, p. 221801

    Research output: Contribution to Journal/MagazineJournal articlepeer-review

  13. Published

    Measurement of Inclusive Differential Cross Sections for 1S Production in pp Collisions at ps 1:96 TeV

    DO Collaboration, T., Bertram, I. A., Borissov, G. V., Ratoff, P. N. & Sopczak, A., 17/06/2005, In: Physical review letters. 94, 23, p. 232001

    Research output: Contribution to Journal/MagazineJournal articlepeer-review

  14. Published

    Measurement of Semileptonic Branching Fractions of B Mesons to Narrow D** States

    DO Collaboration, T., Bertram, I. A., Borissov, G. V., Ratoff, P. N. & Sopczak, A., 18/10/2005, In: Physical review letters. 95, 17, p. 171803

    Research output: Contribution to Journal/MagazineJournal articlepeer-review

  15. Published

    Measurement of the B0s Lifetime in the Exclusive Decay Channel B0s ! J=

    DO Collaboration, T., Bertram, I. A., Borissov, G. V., Ratoff, P. N. & Sopczak, A., 4/02/2005, In: Physical review letters. 94, 4, p. 042001

    Research output: Contribution to Journal/MagazineJournal articlepeer-review

  16. Published

    Measurement of the Lifetime Difference in the B0s System

    DO Collaboration, T., Bertram, I. A., Borissov, G. V., Ratoff, P. N. & Sopczak, A., 21/10/2005, In: Physical review letters. 95, 17, p. 171801

    Research output: Contribution to Journal/MagazineJournal articlepeer-review

  17. Published

    Measurement of the p[overline p]-->Wgamma+X cross section at sqrt(s)=1.96 TeV and WWgamma anomalous coupling limits

    DO Collaboration, T., Bertram, I. A., Borissov, G. V., Ratoff, P. N. & Sopczak, A., 05/2005, In: Physical Review D. 71, 9, p. 091108

    Research output: Contribution to Journal/MagazineJournal articlepeer-review

  18. Published

    Measurement of the Ratio of Inclusive Cross Sections (pZ+b jet)/(pZ+jet) at =1.96 TeV

    DO Collaboration, T., Bertram, I. A., Borissov, G. V., Ratoff, P. N. & Sopczak, A., 29/04/2005, In: Physical review letters. 94, 16, p. 161801

    Research output: Contribution to Journal/MagazineJournal articlepeer-review

  19. Published

    Measurement of the top quark mass in all-jet events

    DO Collaboration, T., Bertram, I. A., Borissov, G. V., Ratoff, P. N. & Sopczak, A., 20/01/2005, In: Physics Letters B. 606, 1-2, p. 25-33 9 p.

    Research output: Contribution to Journal/MagazineJournal articlepeer-review

  20. Published

    Measurement of the t t¯ production cross section in pp¯ collisions at √s = 1.96 TeV using kinematic characteristics of lepton+jets events

    DO Collaboration, T., Bertram, I. A., Borissov, G. V., Ratoff, P. N. & Sopczak, A., 20/10/2005, In: Physics Letters B. 626, 1-4, p. 45-54 10 p.

    Research output: Contribution to Journal/MagazineJournal articlepeer-review

  21. Published

    Measurement of the t t¯ production cross section in pp¯ collisions at √s = 1.96 TeV using lepton +jets events with lifetime b-tagging

    DO Collaboration, T., Bertram, I. A., Borissov, G. V., Ratoff, P. N. & Sopczak, A., 20/10/2005, In: Physics Letters B. 626, 1-4, p. 35-44 10 p.

    Research output: Contribution to Journal/MagazineJournal articlepeer-review

  22. Published

    Measurement of the t t¯ production cross section in pp¯ collisions at √s = 1.96 TeV in dilepton final states

    DO Collaboration, T., Bertram, I. A., Borissov, G. V., Ratoff, P. N. & Sopczak, A., 20/10/2005, In: Physics Letters B. 626, 1-4, p. 55-64 10 p.

    Research output: Contribution to Journal/MagazineJournal articlepeer-review

  23. Published

    Measurement of the WW Production Cross Section in pp Collisions at ps1:96 TeV

    DO Collaboration, T., Bertram, I. A., Borissov, G. V., Ratoff, P. N. & Sopczak, A., 22/04/2005, In: Physical review letters. 94, 15, p. 151801

    Research output: Contribution to Journal/MagazineJournal articlepeer-review

  24. Published

    Production of WZ Events in pp Collisions at ps 1:96 TeV and Limits on Anomalous WWZ Couplings

    DO Collaboration, T., Bertram, I. A., Borissov, G. V., Ratoff, P. N. & Sopczak, A., 30/09/2005, In: Physical review letters. 95, 14, p. 141802

    Research output: Contribution to Journal/MagazineJournal articlepeer-review

  25. Published

    Search for Anomalous Heavy-Flavor Quark Production in Association with W Bosons

    DO Collaboration, T., Bertram, I. A., Borissov, G. V., Ratoff, P. N. & Sopczak, A., 22/04/2005, In: Physical review letters. 94, 15, p. 152002

    Research output: Contribution to Journal/MagazineJournal articlepeer-review

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