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Research

Dr Mark Williams

Formerly at Lancaster University

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  1. Published

    An upper limit on the tau-neutrino mass from three-prong and five-prong tau decays

    ALEPH Collaboration, T., Barate, R., Betteridge, A., Bowdery, C., Colrain, P., Finch, A., Foster, F., Hughes, G., Jones, R., Sloan, T. & Williams, M., 04/1998, In: European Physical Journal C: Particles and Fields. 2, 3, p. 395-406 12 p.

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

  2. Published

    Searches for charginos and neutralinos in $e^+ e^-$ collisions at $s$ = 161-GeV and 172-GeV

    ALEPH Collaboration, T., Barate, R., Betteridge, A., Bowdery, C., Colrain, P., Finch, A., Foster, F., Hughes, G., Jones, R. & Williams, M., 04/1998, In: The European Physical Journal C (EPJ C) - Particles and Fields. 2, 3, p. 417-439 23 p.

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

  3. Published

    Search for charged Higgs bosons in e+ e- collisions at center-of-mass energies from 130-GeV to 172-GeV

    ALEPH Collaboration, T., Barate, R., Betteridge, A., Bowdery, C., Colrain, P., Finch, A., Foster, F., Hughes, G., Jones, R., Sloan, T. & Williams, M., 5/02/1998, In: Physics Letters B. 418, 3-4, p. 419-429 11 p.

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

  4. Published

    Searches for supersymmetry in the photon(s) plus missing energy channels at s**(1/2) = 161-GeV and 172-GeV

    ALEPH Collaboration, T., Barate, R., Betteridge, A., Bowdery, C., Colrain, P., Finch, A., Foster, F., Hughes, G., Jones, R., Sloan, T., Whelan, E. & Williams, M., 19/02/1998, In: Physics Letters B. 420, 1-2, p. 127-139 13 p.

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

  5. Published

    Measurement of the $B$ baryon lifetime and branching fractions in $Z$ decays

    ALEPH Collaboration, T., Barate, R., Betteridge, A., Bowdery, C., Colrain, P., Finch, A., Foster, F., Hughes, G., Jones, R., Sloan, T. & Williams, M., 04/1998, In: European Physical Journal C: Particles and Fields. 2, 2, p. 197-211 15 p.

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

  6. Published

    Three prong tau decays with charged kaons

    ALEPH Collaboration, T., Barate, R., Betteridge, A., Bowdery, C., Colrain, P., Finch, A., Foster, F., Hughes, G., Jones, R., Sloan, T. & Williams, M., 1998, In: European Physical Journal C: Particles and Fields. 1, 1-2, p. 65-79 15 p.

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

  7. Published

    Studies of quantum chromodynamics with the ALEPH detector

    ALEPH Collaboration, T., Barate, R., Betteridge, A., Bowdery, C., Colrain, P., Finch, A., Foster, F., Hughes, G., Sloan, T. & Williams, M., 02/1998, In: Physics Reports. 294, 1-3, p. 1-165 165 p.

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

  8. Published

    Measurement of the semileptonic charge asymmetry using Bs^0 -> D_s mu X decays

    Bertram, I., Borissov, G., Williams, M., Fox, H., Ross, A., Ratoff, P. & D0 Collaboration, T., 3/01/2013, In: Physical review letters. 110, 1, 7 p., 011801.

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

  9. Published

    Combination of Tevatron searches for the standard model Higgs boson in the W+W- decay mode

    Bertram, I., Borissov, G., Fox, H., Love, P., Price, D., Ratoff, P., Sopczak, A. & Williams, M., 12/02/2010, In: Physical review letters. 104, 6, 11 p., 061802.

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

  10. Published

    Search for associated production of charginos and neutralinos in the trilepton final state using 2.3 fb**-1 of data.

    D0 Collaboration, 14/09/2009, In: Physics Letters B. 680, 1, p. 34-43 10 p.

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

  11. Published

    Combination of the top-quark mass measurements from the Tevatron collider

    Bertram, I., Collaboration, D., CDF Collaboration, T., Borissov, G., Fox, H., Ross, A., Williams, M. & Ratoff, P., 2/11/2012, In: Physical Review D. 86, 9, 31 p., 092003.

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

  12. Published

    Evidence for a Particle Produced in Association with Weak Bosons and Decaying to a Bottom-Antibottom Quark Pair in Higgs Boson Searches at the Tevatron

    Bertram, I., Collaboration, D., Collaboration, C., Borissov, G., Fox, H., Ross, A., Williams, M. & Ratoff, P., 14/08/2012, In: Physical review letters. 109, 7, 12 p., 071804.

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

  13. Published

    Measurement of the differential cross section dσ/dt in elastic pp̅ scattering at √s=1.96  TeV

    Bertram, I., Collaboration, D., Borissov, G., Fox, H., Ross, A., Williams, M. & Ratoff, P., 27/07/2012, In: Physical Review D. 86, 1, 12 p., 012009.

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

  14. Published

    Combination of CDF and D0 measurements of the W boson helicity in top quark decays

    Bertram, I., Borissov, G., Fox, H., Ross, A., Williams, M. & Ratoff, P., 27/04/2012, In: Physical Review D. 85, 7, 11 p., 071106(R) .

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

  15. Published

    Precise Measurement of the Top Quark Mass in the Dilepton Channel at D0

    Bertram, I., Borissov, G., Fox, H., Ross, A., Williams, M., Ratoff, P. & Collaboration, D., 19/08/2011, In: Physical review letters. 107, 8, 7 p., 082004.

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

  16. Published

    Measurement of the W boson helicity in top quark decays using 5.4  fb-1 of pp̅ collision data

    Bertram, I., Borissov, G., Fox, H., Williams, M., Ratoff, P., Love, P., Sopczak, A. & Collaboration, D., 18/02/2011, In: Physical Review D. 83, 3, 18 p., 032009.

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

  17. Published

    Search for pair production of the scalar top quark in the electron + muon final state

    Bertram, I., Borissov, G., Fox, H., Williams, M., Ratoff, P., Love, P., Sopczak, A. & Collaboration, D., 7/02/2011, In: Physics Letters B. 696, 4, p. 321-327 7 p.

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

  18. Published

    Combined Tevatron upper limit on gg→H→W+W- and constraints on the Higgs boson mass in fourth-generation fermion models

    Bertram, I., Borissov, G., Fox, H., Williams, M., Ratoff, P., Love, P., Sopczak, A. & D0 Collaboration, T., 15/07/2010, In: Physical Review D. 82, 1, 12 p., 011102(R).

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

  19. Published

    Measurement of the Zgamma to nunugamma cross section and limits on anomalous ZZgamma and Zgammagamma couplings in ppbar collisions at sqrt{s} = 1.96 TeV

    Bertram, I., Borissov, G., Fox, H., Williams, M., Ratoff, P., Love, P., Rakitin, A., Sopczak, A. & D0 Collaboration, T., 22/05/2009, In: Physical review letters. 102, 20, 7 p., 201802.

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

  20. Published

    Search for a scalar or vector particle decaying into Zgamma in ppbar collisions at sqrt(s) = 1.96 TeV

    Bertram, I., Fox, H., Borissov, G., Williams, M., Ratoff, P., Love, P., Rakitin, A., Sopczak, A. & D0 Collaboration, T., 26/01/2009, In: Physics Letters B. 671, 3, p. 349-355 7 p.

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

  21. Published

    Measurement of the electron charge asymmetry in ppbar->W+X->enu+X events at sqrt{s}=1.96 TeV

    Bertram, I., Borissov, G., Fox, H., Williams, M., Ratoff, P., Love, P., Rakitin, A. & Sopczak, A., 19/11/2008, In: Physical review letters. 101, 21, 7 p., 211801.

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

  22. Published

    Measurement of the differential cross sections for isolated direct photon pair production in pp collisions at

    Bertram, I., Borissov, G., Fox, H., Ratoff, P., Ross, A., Williams, M. & D0 Collaboration, T., 9/08/2013, In: Physics Letters B. 725, 1-3, p. 6-14 9 p.

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

  23. Published

    Measurement of the differential γ+2 b-jet cross section and the ratio σ(γ+2 b-jets)/σ(γ+b-jet) in pp¯ collisions at s√=1.96 TeV

    D0 Collaboration, 7/10/2014, In: Physics Letters B. 737, p. 357-365 9 p.

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

  24. Published

    Measurement of the direct CP-violating parameter A_CP in the decay D+ -> K- pi+ pi+

    D0 Collaboration, 11/12/2014, In: Physical Review D. 90, 11, 8 p., 111102.

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

  25. Published

    Measurement of the forward-backward asymmetry in the production of B± mesons in pp¯ collisions at s√=1.96  TeV

    D0 Collaboration, 4/02/2015, In: Physical review letters. 114, 5, 8 p., 051803.

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

  26. Published

    Measurement of the W+b -jet and W+c -jet differential production cross sections in pbarp collisions at sqrt(s) = 1.96 TeV

    D0 Collaboration, 9/04/2015, In: Physics Letters B. 743, p. 6-14 9 p.

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

  27. Published

    Measurement of the forward-backward asymmetry of Λ and Λ¯ production in pp¯ collisions

    D0 Collaboration, 9/02/2016, In: Physical Review D. 93, 3, 10 p., 032002.

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

  28. Published

    Evidence for simultaneous production of J/ψ and ϒ Mesons

    D0 Collaboration, 25/02/2016, In: Physical review letters. 116, 8, 8 p., 082002.

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

  29. Published

    Measurement of the relative branching ratio of B^0_s to J/psi f_{0}(980) to B_{s}{0} to J/psi phi

    collaboration, D., Bertram, I., Borissov, G., Fox, H., Ross, A., Williams, M. & Ratoff, P., 20/01/2012, In: Physical Review D. 85, 1, 7 p., 011103(R).

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

  30. 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

  31. Published

    Study of direct CP violation in $B^{\pm} \to J/ψK^{\pm}(π^{\pm})$ decays

    Collaboration, D., Abazov, V., Bertram, I., Williams, M., Borissov, G., Ratoff, P. & Fox, H., 22/02/2008, In: Physical review letters. 100, 21, 7 p., 211802.

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

  32. Published

    Search for CP violation in semileptonic Bs decays

    Collaboration, D., Abazov, V., Bertram, I., Borissov, G., Williams, M., Fox, H. & Ratoff, P., 24/04/2009, In: Physical Review D. 82, 1, 12 p., 012003.

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

  33. Published

    Measurement of the semileptonic charge asymmetry in B0 meson mixing with the D0 detector

    Collaboration, D., Bertram, I., Borissov, G., Ross, A., Williams, M., Fox, H., Ratoff, P. & Price, D., 26/10/2012, In: Physical Review D. 86, 7, 20 p., 072009.

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

  34. Published

    Observation and properties of the orbitally excited B_{s2}* Meson

    Collaboration, D., Abazov et al, V., Bertram, I., Borissov, G., Fox, H., Love, P., Rakitin, A., Ratoff, P., Sopczak, A. & Williams, M., 28/02/2008, In: Physical review letters. 100, 8, 7 p., 082002.

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

  35. 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

  36. 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

  37. Published

    An improved measurement of direct CP violation parameters in B^+- -> J/psi K^+- and B^+- -> J/psi pi^+- decays

    Collaboration, D., Bertram, I., Borissov, G., Ross, A., Williams, M., Ratoff, P., Fox, H., Lamont, I. & Beattie, M., 12/06/2013, In: Physical review letters. 110, 24, 7 p., 241801.

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

  38. Published

    Search for the rare decay Bs->mumu

    Collaboration, D., Bertram, I., Borissov, G., Fox, H., Ross, A., Williams, M. & Ratoff, P., 9/04/2013, In: Physical Review D. 87, 7, 12 p., 072006.

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

  39. Published

    Measurement of the combined rapidity and $p_T$ dependence of dijet azimuthal decorrelations in $p\bar{p}$ collisions at $\sqrt{s}=1.96\,$TeV

    Collaboration, D., Bertram, I., Borissov, G., Fox, H., Ross, A., Williams, M. & Ratoff, P., 25/04/2013, In: Physics Letters B. 721, 4-5, p. 212-219 8 p.

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

  40. Published

    Search for charged massive long-lived particles at sqrt(s)= 1.96 TeV

    Collaboration, D., Bertram, I., Borissov, G., Fox, H., Ross, A., Williams, M. & Ratoff, P., 6/03/2013, In: Physical Review D. 87, 5, 34 p., 052011.

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

  41. Published

    Measurement of the differential photon+ c-jet cross section and the ratio of differential photon+ c and photon+ b cross sections in proton-antiproton collisions at sqrt(s) = 1.96 TeV

    Collaboration, D., Bertram, I., Borissov, G., Fox, H., Ross, A., Williams, M. & Ratoff, P., 26/02/2013, In: Physics Letters B. 719, 4-5, p. 354-361 8 p.

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

  42. Published

    Measurement of Leptonic Asymmetries and Top Quark Polarization in ttbar Production

    Collaboration, D., Bertram, I., Borissov, G., Fox, H., Ross, A., Williams, M. & Ratoff, P., 24/01/2013, In: Physical Review D. 87, 1, 8 p., 011103(R).

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

  43. Published

    Measurement of the ppbar -> W+b+X production cross section at \sqrt{s}=1.96 TeV

    Collaboration, D., Bertram, I., Borissov, G., Fox, H., Ross, A., Williams, M. & Ratoff, P., 29/01/2013, In: Physics Letters B. 718, 4-5, p. 1314-1320 7 p.

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

  44. Published

    Study of the decay $B_s^0 \rightarrow J/ψf_2^{\prime}(1525)$ in $μ^+ μ^- K^+K^-$ final states

    Collaboration, D., Bertram, I., Borissov, G., Fox, H., Ross, A., Williams, M. & Ratoff, P., 26/11/2012, In: Physical Review D. 86, 9, 12 p., 092011.

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

  45. Published

    Limits on anomalous trilinear gauge boson couplings from WW, WZ and Wgamma production in pp-bar collisions at sqrt{s}=1.96 TeV

    Collaboration, D., Bertram, I., Borissov, G., Fox, H., Ross, A., Williams, M. & Ratoff, P., 5/12/2012, In: Physics Letters B. 718, 2, p. 451-459 9 p.

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

  46. Published

    Measurement of angular correlations of jets at sqrt(s)=1.96 TeV and determination of the strong coupling at high momentum transfers

    Collaboration, D., Bertram, I., Borissov, G., Fox, H., Ross, A., Williams, M. & Ratoff, P., 15/11/2012, In: Physics Letters B. 718, 1, p. 56-63 8 p.

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

  47. Published

    Search for Neutral Higgs Bosons in Events with Multiple Bottom Quarks at the Tevatron

    Collaboration, C., Collaboration, D., [No Value], T., Bertram, I., Borissov, G., Fox, H., Ross, A., Williams, M. & Ratoff, P., 6/11/2012, In: Physical Review D. 86, 9, 11 p., 091101(R) .

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

  48. Published

    Search for Zgamma events with large missing transverse energy in ppbar collisions at sqrt(s)=1.96 TeV

    Collaboration, D., Bertram, I., Borissov, G., Fox, H., Ross, A., Williams, M. & Ratoff, P., 2/10/2012, In: Physical Review D. 86, 7, 7 p., 071701(R) .

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

  49. Published

    Measurement of the top quark mass in $\boldsymbol{\ppbar}$ collisions using events with two leptons

    Collaboration, D., Bertram, I., Borissov, G., Fox, H., Ross, A., Williams, M. & Ratoff, P., 26/09/2012, In: Physical Review D. 86, 5, 8 p., 051103(R).

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

  50. Published

    Search for the standard model Higgs boson in ZH -> l+ l- bbbar production with the D0 detector in 9.7 fb-1 of ppbar collisions at sqrt(s)=1.96 TeV

    Collaboration, D., Bertram, I., Borissov, G., Fox, H., Ross, A., Williams, M. & Ratoff, P., 20/09/2012, In: Physical review letters. 109, 12, 8 p., 121803.

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

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