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Research

Dr Andre Sopczak

Formerly at Lancaster University

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  1. Journal article
  2. Published

    Precise measurement of the top quark mass from lepton+jets events at D0

    Collaboration, D., Bertram, I., Borissov, G., Fox, H., Williams, M., Ratoff, P., Love, P., Rakitin, A. & Sopczak, A., 28/10/2008, In: Physical review letters. 101, 18, 7 p., 182001.

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

  3. Published

    Observation of ZZ production in ppbar collisions at sqrt(s) = 1.96 TeV

    Collaboration, D., Bertram, I., Borissov, G., Fox, H., Williams, M., Ratoff, P., Love, P., Rakitin, A. & Sopczak, A., 23/10/2008, In: Physical review letters. 101, 17, 7 p., 171803.

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

  4. Published

    Search for scalar leptoquarks and T-odd quarks in the acoplanar jet topology using 2.5 fb-1 of ppbar collision data at sqrt(s)=1.96 TeV

    Collaboration, D., Bertram, I., Borissov, G., Fox, H., Williams, M., Ratoff, P., Love, P., Rakitin, A. & Sopczak, A., 23/10/2008, In: Physics Letters B. 668, 5, p. 357-363

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

  5. Published

    Search for ttbar resonances in the lepton plus jets final state in ppbar collisions at sqrt{s}=1.96TeV

    Collaboration, D., Bertram, I., Borissov, G., Fox, H., Williams, M., Ratoff, P., Love, P., Rakitin, A. & Sopczak, A., 2/10/2008, In: Physics Letters B. 668, 2, p. 98-104 7 p.

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

  6. Published

    Search for neutral Higgs bosons in multi-$b$-jet events in $p\bar{p}$ collisions at $\sqrt{s} = 1.96$ TeV

    Collaboration, D., Bertram, I., Borissov, G., Fox, H., Williams, M., Ratoff, P., Rakitin, A., Love, P. & Sopczak, A., 26/09/2008, In: Physical review letters. 101, 22, 7 p., 221802.

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

  7. Published

    Search for long-lived particles decaying into electron or photon pairs with the D0 detector

    Collaboration, D., Bertram, I., Borissov, G., Fox, H., Williams, M., Ratoff, P., Love, P., Rakitin, A. & Sopczak, A., 12/09/2008, In: Physical review letters. 101, 11, 7 p., 111802.

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

  8. Published

    Measurement of the differential cross section for the production of an isolated photon with associated jet in ppbar collisions at sqrt(s)=1.96 TeV

    Collaboration, D., Bertram, I., Borissov, G., Fox, H., Williams, M., Ratoff, P., Love, P., Rakitin, A. & Sopczak, A., 11/09/2008, In: Physics Letters B. 666, 5, p. 435-445 11 p.

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

  9. Published

    Search for Higgs bosons decaying to tau pairs in pp̅ collisions with the D0 detector

    Collaboration, D., Bertram, I., Borissov, G., Fox, H., Williams, M., Ratoff, P., Love, P., Rakitin, A. & Sopczak, A., 14/08/2008, In: Physical review letters. 101, 7, 7 p., 071804.

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

  10. Published

    Measurement of the ratio of the $p\bar{p}\to W$+$c$-jet cross section to the inclusive $p\bar{p}\to W$+jets cross section

    Collaboration, D., Bertram, I., Borissov, G., Fox, H., Williams, M., Ratoff, P., Love, P., Rakitin, A. & Sopczak, A., 7/08/2008, In: Physics Letters B. 666, 1, p. 23-30 8 p.

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

  11. Published

    Search for Decay of a Fermiophobic Higgs Boson hf→γγ with the D0 Detector at √s=1.96  TeV

    Collaboration, D., Bertram, I., Borissov, G., Fox, H., Williams, M., Ratoff, P., Love, P., Rakitin, A. & Sopczak, A., 29/07/2008, In: Physical review letters. 101, 5, 7 p., 051801.

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

  12. Published

    Evidence for production of single top quarks

    Collaboration, D., Bertram, I., Borissov, G., Fox, H., Williams, M., Ratoff, P., Love, P., Rakitin, A. & Sopczak, A., 14/07/2008, In: Physical Review D. 78, 1, 47 p., 012005.

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

  13. Published

    Search for pair production of doubly-charged Higgs bosons in the H^{++}H^{--}^ to mu^+mu^+mu^-mu^- final state at D0

    Collaboration, D., Bertram, I., Borissov, G., Fox, H., Williams, M., Ratoff, P., Love, P., Rakitin, A. & Sopczak, A., 13/07/2008, In: Physical review letters. 101, 7, 7 p., 071803.

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

  14. Published

    Measurement of the inclusive jet cross section in $p \bar{p}$ collisions at $\sqrt{s}=1.96 {\rm TeV}$

    Collaboration, D., Bertram, I., Borissov, G., Fox, H., Williams, M., Ratoff, P., Love, P., Rakitin, A. & Sopczak, A., 6/07/2008, In: Physical review letters. 101, 6, 7 p., 062001.

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

  15. Published

    Search for scalar top quarks in the acoplanar charm jets and missing transverse energy final state in $p\bar{p}$ collisions at $\sqrt{s}=1.96$ TeV

    Collaboration, D., Bertram, I., Borissov, G., Fox, H., Williams, M., Ratoff, P., Rakitin, A., Sopczak, A. & Love, P., 3/07/2008, In: Physics Letters B. 665, 1, p. 1-8 8 p.

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

  16. Published

    Observation of the Bc meson mass in the exclusive decay Bc --> Jpsi Pi

    Collaboration, D., Bertram, I., Borissov, G., Fox, H., Williams, M., Love, P., Rakitin, A. & Sopczak, A., 2/07/2008, In: Physical review letters. 101, 1, 6 p., 012001.

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

  17. Published

    First study of the radiation-amplitude zero in Wgamma production and limits on anomalous WWgamma couplings at sqrt(s)=1.96 TeV

    Collaboration, D., Bertram, I., Borissov, G., Fox, H., Williams, M., Ratoff, P., Love, P., Rakitin, A. & Sopczak, A., 20/06/2008, In: Physical review letters. 100, 24, 7 p., 241805.

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

  18. Published

    Search for sneutrino particles in e + mu final states in ppbar collisions at sqrt{s} =1.96 TeV

    Collaboration, D., Bertram, I., Borissov, G., Fox, H., Williams, M., Ratoff, P., Love, P., Rakitin, A. & Sopczak, A., 19/06/2008, In: Physical review letters. 100, 24, 7 p., 241803.

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

  19. Published

    Search for W-prime boson resonances decaying to a top quark and a bottom quark

    Collaboration, D., Bertram, I., Borissov, G., Fox, H., Williams, M., Ratoff, P., Love, P., Rakitin, A. & Sopczak, A., 30/05/2008, In: Physical review letters. 100, 21, 7 p., 211803.

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

  20. Published

    A combined search for the standard model Higgs boson at sqrt{s}=1.96 TeV

    Collaboration, D., M. Abazov, V., Bertram, I., Borissov, G., Fox, H., Love, P., Rakitin, A., Ratoff, P., Sopczak, A. & Williams, M., 15/05/2008, In: Physics Letters B. 663, 1-2, p. 26-36 11 p.

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

  21. Published

    Simultaneous measurement of the ratio B(t->Wb)/B(t->Wq) and the top quark pair production cross section with the D0 detector at sqrt(s)=1.96 TeV

    collaboration, D., Bertram, I., Borissov, G., Fox, H., Williams, M., Ratoff, P., Love, P., Rakitin, A. & Sopczak, A., 14/05/2008, In: Physical review letters. 100, 19, 7 p., 192003.

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

  22. Published

    Search for excited electrons in ppbar collisions at sqrt(s) = 1.96 TeV

    Collaboration, D., Bertram, I., Borissov, G., Fox, H., Williams, M., Ratoff, P., Love, P., Rakitin, A. & Sopczak, A., 12/05/2008, In: Physical Review D. 77, 9, 8 p., 091102(R).

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

  23. Published

    First measurement of the forward-backward charge asymmetry in top quark pair production

    Collaboration, D., Bertram, I., Borissov, G., Fox, H., Love, P., Rakitin, A., Ratoff, P., Sopczak, A. & Williams, M., 9/04/2008, In: Physical review letters. 100, 14, 7 p., 142002.

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

  24. Published

    Search for ZZ and Zγ^* production in p-barp collisions at sqrt(s) = 1.96 TeV and limits on anomalous ZZZ and ZZγ^* couplings

    Collaboration, D., Bertram, I., Borissov, G., Fox, H., Love, P., Rakitin, A., Ratoff, P., Sopczak, A. & Williams, M., 2/04/2008, In: Physical review letters. 100, 13, 7 p., 131801.

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

  25. Published

    Search for flavor-changing-neutral-current D meson decays

    Collaboration, D., Abazov, V., Bertram, I., Borissov, G., Fox, H., Love, P., Rakitin, A., Ratoff, P., Sopczak, A. & Williams, M., 14/03/2008, In: Physical review letters. 100, 10, 7 p., 101801.

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

  26. Published

    Measurement of the shape of the boson transverse momentum distribution in ppbar -> Z/gamma* -> ee+X events produced at sqrt{s}=1.96 TeV

    Collaboration, D., Abazov, V., Bertram, I., Borissov, G., Fox, H., Love, P., Rakitin, A., Ratoff, P., Sopczak, A. & Williams, M., 11/03/2008, In: Physical review letters. 100, 10, 7 p., 102002.

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

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