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Research

Dr Andre Sopczak

Formerly at Lancaster University

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  1. 2005
  2. 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/Magazine › Journal article › peer-review

  3. 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/Magazine › Journal article › peer-review

  4. 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/Magazine › Journal article › peer-review

  5. Published

    Search for a single top quark production in pp collisions at √s = 1.96 TeV

    DO Collaboration, T., Bertram, I. A., Borissov, G. V., Ratoff, P. N. & Sopczak, A., 8/12/2005, In: Physics Letters B. 622, 3-4, p. 265-276 12 p.

    Research output: Contribution to Journal/Magazine › Journal article › peer-review

  6. Published

    Analyzing the scalar top coannihilation region at the International Linear Collider

    Carena, M. S., Finch, A., Freitas, A., Milstene, C., Nowak, H. & Sopczak, A., 12/12/2005, In: Physical Review D. 72, 11, 17 p., 115008.

    Research output: Contribution to Journal/Magazine › Journal article › peer-review

  7. 2006
  8. Published

    Search for excited muons in p <span style='text-decoration: overline'></span>p collisions at √<span style='text-decoration: overline'>s</span> = 1.96- TeV}.

    Abazov, V. M., Bertram, I., Borissov, G., Fox, H., Ratoff, P. & Sopczak, A., 2006, In: Physical Review D. 73, p. 111102

    Research output: Contribution to Journal/Magazine › Journal article › peer-review

  9. 2007
  10. Published

    Evidence for production of single top quarks and first direct measurement of |V(tb)|.

    D0 Collaboration, 2007, In: Physical review letters. 98, 18, p. 181802 8 p.

    Research output: Contribution to Journal/Magazine › Journal article › peer-review

  11. Published

    Experimental discrimination between charge 2e/3 top quark and charge 4e/3 exotic quark production scenarios.

    Abazov, V. M., Bertram, I., Borissov, G., Fox, H., Ratoff, P. & Sopczak, A., 2007, In: Physical review letters. 98, p. 041801

    Research output: Contribution to Journal/Magazine › Journal article › peer-review

  12. Published

    Measurement of the p <span style='text-decoration: overline'></span>p → t <span style='text-decoration: overline'>t</span> production cross section at √<span style='text-decoration: overline'>s</span> = 1.96-TeV in the fully hadronic decay channel}.

    Abazov, V. M., Bertram, I., Borissov, G., Fox, H., Ratoff, P., Sopczak, A. & Missing, M., 2007, In: Physical Review D. 76, p. 072007

    Research output: Contribution to Journal/Magazine › Journal article › peer-review

  13. Published

    Measurement of the W boson helicity in top quark decay at D0.

    Abazov, V. M., Bertram, I., Borissov, G., Fox, H., Ratoff, P. & Sopczak, A., 2007, In: Physical Review D. 75, p. 031102

    Research output: Contribution to Journal/Magazine › Journal article › peer-review

  14. Published

    Multivariate searches for single top quark production with the D0 detector.

    Abazov, V. M., Bertram, I., Borissov, G., Fox, H., Ratoff, P. & Sopczak, A., 2007, In: Physical Review D. 75, 092007.

    Research output: Contribution to Journal/Magazine › Journal article › peer-review

  15. Published

    Search for techniparticles in e + jets events at D0.

    Abazov, V. M., Bertram, I., Borissov, G., Fox, H., Ratoff, P. & Sopczak, A., 2007, In: Physical review letters. 98, p. 221801

    Research output: Contribution to Journal/Magazine › Journal article › peer-review

  16. Published

    Search for the pair production of scalar top quarks in the acoplanar charm jet topology in p anti-p collisions at s**(1/2) = 1.96-TeV.

    Abazov, V. M., Bertram, I., Borissov, G., Fox, H., Ratoff, P. & Sopczak, A., 8/02/2007, In: Physics Letters B. 645, 2-3, p. 119-127 9 p.

    Research output: Contribution to Journal/Magazine › Journal article › peer-review

  17. Published

    Lifetime difference and CP-violating phase in the B<sup>0</sup><sub></sub>s system}.

    Abazov, V. M., Bertram, I., Borissov, G., Fox, H., Ratoff, P. & Sopczak, A., 21/03/2007, In: Physical review letters. 98, p. 121801

    Research output: Contribution to Journal/Magazine › Journal article › peer-review

  18. Published

    Search for a fourth generation b-prime-quark at LEP-II at s**(1/2) = 196-GeV - 209-GeV.

    Abdallah, J., Sopczak, A. & The DELPHI Collaboration, E. A., 04/2007, In: European Physical Journal C: Particles and Fields. 50, 3, p. 507-518 12 p.

    Research output: Contribution to Journal/Magazine › Journal article › peer-review

  19. Published

    Search for single production of scalar leptoquarks in p anti-p collisions decaying into muons and quarks with the D0 detector.

    Abazov, V. M., Bertram, I., Borissov, G., Fox, H., Ratoff, P. & Sopczak, A., 5/04/2007, In: Physics Letters B. 647, 2-3, p. 74-81 8 p.

    Research output: Contribution to Journal/Magazine › Journal article › peer-review

  20. Published

    Measurement of the top quark mass in the lepton + jets channel using the ideogram method.

    Abazov, V. M., Bertram, I., Borissov, G., Fox, H., Ratoff, P. & Sopczak, A., 11/05/2007, In: Physical Review D. 75, p. 092001

    Research output: Contribution to Journal/Magazine › Journal article › peer-review

  21. Published

    Investigation of colour reconnection in WW events with the DELPHI detector at LEP-2.

    Abdallah, J., Sopczak, A. & The DELPHI Collaboration, E. A., 07/2007, In: European Physical Journal C: Particles and Fields. 51, 2, p. 249-269 21 p.

    Research output: Contribution to Journal/Magazine › Journal article › peer-review

  22. Published

    Measurement of the shape of the boson rapidity distribution for pp̅ →Z/γ*→e+e-+X events produced at √s of 1.96 TeV

    Abazov, V. M., Bertram, I., Borissov, G., Fox, H., Ratoff, P. & Sopczak, A., 16/07/2007, In: Physical Review D. 76, 1, 10 p., 012003 .

    Research output: Contribution to Journal/Magazine › Journal article › peer-review

  23. Published

    Simulations of the Temperature Dependence of the Charge Transfer Inefficiency in a High-Speed CCD.

    Sopczak, A., Bekhouche, K., Bowdery, C., Damerell, C., Davies, G., Dehimi, L., Greenshaw, T., Koziel, M., Stefanov, K., Walder, J., Woolliscroft, T. & Worm, S., 08/2007, In: IEEE Transactions on Nuclear Science. 54, 4, p. 1429-1434 6 p.

    Research output: Contribution to Journal/Magazine › Journal article › peer-review

  24. Published

    Study of triple-gauge-boson couplings ZZZ, ZZgamma and Zgamma gamma LEP.

    Abdallah, J., Sopczak, A. & The DELPHI Collaboration, E. A., 08/2007, In: European Physical Journal C: Particles and Fields. 51, 3, p. 525-542 18 p.

    Research output: Contribution to Journal/Magazine › Journal article › peer-review

  25. Published

    Z gamma* production in e+e- interactions at s**(1/2) = 183 - 209-GeV.

    Abdallah, J., Sopczak, A. & The DELPHI Collaboration, E. A., 08/2007, In: European Physical Journal C: Particles and Fields. 51, 3, p. 503-523 21 p.

    Research output: Contribution to Journal/Magazine › Journal article › peer-review

  26. Published

    Search for third-generation leptoquarks in p <span style='text-decoration: overline'></span>p collisions at √<span style='text-decoration: overline'>s</span> = 1.96-TeV}.

    Abazov, V. M., Bertram, I., Borissov, G., Fox, H., Ratoff, P. & Sopczak, A., 6/08/2007, In: Physical review letters. 99, p. 061801

    Research output: Contribution to Journal/Magazine › Journal article › peer-review

  27. Published

    Combined D0 measurements constraining the CP-violating phase and width difference in the B/s0 system.

    Abazov, V. M., Bertram, I., Borissov, G., Fox, H., Ratoff, P. & Sopczak, A., 17/09/2007, In: Physical Review D. 76, p. 057101

    Research output: Contribution to Journal/Magazine › Journal article › peer-review

  28. Published

    Search for Pentaquarks in the Hadronic Decays of the Z Boson with the DELPHI Detector at LEP.

    Abdallah, J., Sopczak, A. & DELPHI Collaboration, E. A., 20/09/2007, In: Physics Letters B. 653, 2-4, p. 151-160 10 p.

    Research output: Contribution to Journal/Magazine › Journal article › peer-review

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