Guy Wilkinson: Publications

Upsilon(1S)->gamma+f2'(1525); f2'(1525)->K0sK0s decays

(2010)

Authors:

The CLEO Collaboration, D Besson, DP Hogan, TK Pedlar, D Cronin-Hennessy, J Hietala, P Zweber, S Dobbs, Z Metreveli, KK Seth, A Tomaradze, T Xiao, S Brisbane, L Martin, A Powell, P Spradlin, G Wilkinson, H Mendez, JY Ge, DH Miller, IPJ Shipsey, B Xin, GS Adams, D Hu, B Moziak, J Napolitano, KM Ecklund, J Insler, H Muramatsu, CS Park, LJ Pearson, EH Thorndike, F Yang, S Ricciardi, C Thomas, M Artuso, S Blusk, R Mountain, T Skwarnicki, S Stone, JC Wang, LM Zhang, G Bonvicini, D Cinabro, A Lincoln, MJ Smith, P Zhou, J Zhu, P Naik, J Rademacker, DM Asner, KW Edwards, K Randrianarivony, G Tatishvili, RA Briere, H Vogel, PUE Onyisi, JL Rosner, JP Alexander, DG Cassel, S Das, R Ehrlich, L Fields, L Gibbons, SW Gray, DL Hartill, BK Heltsley, DL Kreinick, VE Kuznetsov, JR Patterson, D Peterson, D Riley, A Ryd, AJ Sadoff, X Shi, WM Sun, J Yelton, P Rubin, N Lowrey, S Mehrabyan, M Selen, J Wiss, J Libby, M Kornicer, RE Mitchell, CM Tarbert

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Model-independent determination of the strong-phase difference between D0 and D⊃̄0→KS,L0h⁺h^- (h=π, K) and its impact on the measurement of the CKM angle γ/Φ3

Physical Review D - Particles, Fields, Gravitation and Cosmology 82:11 (2010)

Authors:

J Libby, M Kornicer, RE Mitchell, MR Shepherd, CM Tarbert, D Besson, TK Pedlar, J Xavier, D Cronin-Hennessy, J Hietala, P Zweber, S Dobbs, Z Metreveli, KK Seth, A Tomaradze, T Xiao, S Brisbane, S Malde, L Martin, A Powell, P Spradlin, G Wilkinson, H Mendez, JY Ge, DH Miller, IPJ Shipsey, B Xin, GS Adams, D Hu, B Moziak, J Napolitano, KM Ecklund, J Insler, H Muramatsu, CS Park, LJ Pearson, EH Thorndike, F Yang, S Ricciardi, C Thomas, M Artuso, S Blusk, N Horwitz, R Mountain, T Skwarnicki, S Stone, JC Wang, LM Zhang, T Gershon, G Bonvicini, D Cinabro, A Lincoln, MJ Smith, P Zhou, J Zhu, P Naik, J Rademacker, DM Asner, KW Edwards, K Randrianarivony, G Tatishvili, RA Briere, H Vogel, PUE Onyisi, JL Rosner, JP Alexander, DG Cassel, S Das, R Ehrlich, L Fields, L Gibbons, SW Gray, DL Hartill, BK Heltsley, DL Kreinick, VE Kuznetsov, JR Patterson, D Peterson, D Riley, A Ryd, AJ Sadoff, X Shi, WM Sun, J Yelton, P Rubin, N Lowrey, S Mehrabyan, M Selen, J Wiss

Abstract:

We report the first determination of the relative strong-phase difference between D0→KS,L0K+K- and D⊃̄0→KS, L0K+K-. In addition, we present updated measurements of the relative strong-phase difference between D0→KS, L0π+π- and D⊃̄0→KS,L0π +π-. Both measurements exploit the quantum coherence between a pair of D0 and D⊃̄0 mesons produced from ψ(3770) decays. The strong-phase differences measured are important for determining the Cabibbo-Kobayashi-Maskawa angle γ/Φ3 in B -→K-D⊃0 decays, where D⊃0 is a D0 or D⊃̄0 meson decaying to KS0h+h- (h=π, K), in a manner independent of the model assumed to describe the D0→KS0h +h- decay. Using our results, the uncertainty in γ/Φ3 due to the error on the strong-phase difference is expected to be between 1.7° and 3.9° for an analysis using B -→K-D⊃0, D⊃0→KS0π+π - decays, and between 3.2° and 3.9° for an analysis based on B-→K-D⊃0, D⊃0→KS0K+K - decays. A measurement is also presented of the CP-odd fraction, F-, of the decay D0→KS0K+K- in the region of the Φ→K+K- resonance. We find that in a region within 0.01GeV2/c4 of the nominal Φ mass squared F->0.91 at the 90% confidence level. © 2010 The American Physical Society.

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Measurements of branching fractions for electromagnetic transitions involving the $\chi_{bJ}(1P)$ states

(2010)

Authors:

The CLEO Collaboration, M Kornicer, RE Mitchell, CM Tarbert, D Besson, TK Pedlar, D Cronin-Hennessy, J Hietala, P Zweber, S Dobbs, Z Metreveli, KK Seth, A Tomaradze, T Xiao, S Brisbane, L Martin, A Powell, P Spradlin, G Wilkinson, H Mendez, JY Ge, DH Miller, IPJ Shipsey, B Xin, GS Adams, D Hu, B Moziak, J Napolitano, KM Ecklund, J Insler, H Muramatsu, CS Park, LJ Pearson, EH Thorndike, F Yang, S Ricciardi, C Thomas, M Artuso, S Blusk, R Mountain, T Skwarnicki, S Stone, JC Wang, LM Zhang, G Bonvicini, D Cinabro, A Lincoln, MJ Smith, P Zhou, J Zhu, P Naik, J Rademacker, DM Asner, KW Edwards, K Randrianarivony, G Tatishvili, RA Briere, H Vogel, PUE Onyisi, JL Rosner, JP Alexander, DG Cassel, S Das, R Ehrlich, L Fields, L Gibbons, SW Gray, DL Hartill, BK Heltsley, DL Kreinick, VE Kuznetsov, JR Patterson, D Peterson, D Riley, A Ryd, AJ Sadoff, X Shi, WM Sun, J Yelton, P Rubin, N Lowrey, S Mehrabyan, M Selen, J Wiss, J Libby

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Search for rare and forbidden decays of charm and charmed-strange mesons to final states h^±e e⁺

Physical Review D - Particles, Fields, Gravitation and Cosmology 82:9 (2010)

Authors:

P Rubin, N Lowrey, S Mehrabyan, M Selen, J Wiss, J Libby, M Kornicer, RE Mitchell, MR Shepherd, CM Tarbert, D Besson, TK Pedlar, J Xavier, D Cronin-Hennessy, J Hietala, P Zweber, S Dobbs, Z Metreveli, KK Seth, A Tomaradze, T Xiao, S Brisbane, L Martin, A Powell, P Spradlin, G Wilkinson, H Mendez, JY Ge, DH Miller, IPJ Shipsey, B Xin, GS Adams, D Hu, B Moziak, J Napolitano, KM Ecklund, J Insler, H Muramatsu, CS Park, LJ Pearson, EH Thorndike, F Yang, S Ricciardi, C Thomas, M Artuso, S Blusk, R Mountain, T Skwarnicki, S Stone, JC Wang, LM Zhang, G Bonvicini, D Cinabro, A Lincoln, MJ Smith, P Zhou, J Zhu, P Naik, J Rademacker, DM Asner, KW Edwards, K Randrianarivony, G Tatishvili, RA Briere, H Vogel, PUE Onyisi, JL Rosner, JP Alexander, DG Cassel, S Das, R Ehrlich, L Fields, L Gibbons, SW Gray, DL Hartill, BK Heltsley, DL Kreinick, VE Kuznetsov, JR Patterson, D Peterson, D Riley, A Ryd, AJ Sadoff, X Shi, WM Sun, J Yelton

Abstract:

We have searched for flavor-changing neutral current decays and lepton-number-violating decays of D+ and Ds+ mesons to final states of the form h±e e+, where h is either π or K. We use the complete samples of CLEO-c open-charm data, corresponding to integrated luminosities of 818pb-1 at the center-of-mass energy E CM=3.774GeV containing 2.4×106 D+D- pairs and 602pb-1 at ECM=4.170GeV containing 0.6×106 Ds*±Ds pairs. No signal is observed in any channel, and we obtain 90% confidence level upper limits on branching fractions B(D +→π+e+e-)<5. 9×10-6, B(D+→π-e +e+)<1.1×10-6, B(D+→ K+e+e-)<3.0×10-6, B(D +→K-e+e+)<3.5×10 -6, B(Ds+→π+e+e-)<2. 2×10-5, B(Ds+→π-e+e +)<1.8×10-5, B(Ds+→K+e +e-)<5.2×10-5, and B(Ds+→K -e+e+)<1.7×10-5. © 2010 The American Physical Society.

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Measurement of σ(pp→bb̄X) at √s=7 TeV in the forward region

Physics Letters, Section B: Nuclear, Elementary Particle and High-Energy Physics 694:3 (2010) 209-216

Authors:

R Aaij, C Abellan Beteta, B Adeva, M Adinolfi, C Adrover, A Affolder, M Agari, Z Ajaltouni, J Albrecht, F Alessio, M Alexander, M Alfonsi, P Alvarez Cartelle, AA Alves, S Amato, Y Amhis, J Amoraal, J Anderson, R Antunes Nobrega, R Appleby, O Aquines Gutierrez, A Arefyev, L Arrabito, M Artuso, E Aslanides, G Auriemma, S Bachmann, Y Bagaturia, DS Bailey, V Balagura, W Baldini, G Barber, C Barham, RJ Barlow, S Barsuk, S Basiladze, A Bates, C Bauer, T Bauer, A Bay, I Bediaga, T Bellunato, K Belous, I Belyaev, M Benayoun, G Bencivenni, R Bernet, RP Bernhard, MO Bettler, M van Beuzekom, JH Bibby, S Bifani, A Bizzeti, PM Bjørnstad, T Blake, F Blanc, C Blanks, J Blouw, S Blusk, A Bobrov, V Bocci, B Bochin, E Bonaccorsi, A Bondar, N Bondar, W Bonivento, S Borghi, A Borgia, E Bos, TJV Bowcock, C Bozzi, T Brambach, J van den Brand, L Brarda, J Bressieux, S Brisbane, M Britsch, NH Brook, H Brown, S Brusa, A Büchler-Germann, A Bursche, J Buytaert, S Cadeddu, JM Caicedo Carvajal, O Callot, M Calvi, M Calvo Gomez, A Camboni, W Cameron, L Camilleri, P Campana, A Carbone, G Carboni, R Cardinale, A Cardini, J Carroll, L Carson, K Carvalho Akiba, G Casse

Abstract:

Decays of b hadrons into final states containing a D0 meson and a muon are used to measure the bb̄ production cross-section in proton-proton collisions at a centre-of-mass energy of 7 TeV at the LHC. In the pseudorapidity interval 2<η<6 and integrated over all transverse momenta we find that the average cross-section to produce b-flavoured or b̄-flavoured hadrons is (75.3±5.4±13.0) μb. © 2010 CERN.

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Guy Wilkinson

Sub department

Upsilon(1S)->gamma+f2'(1525); f2'(1525)->K0sK0s decays

Authors:

Model-independent determination of the strong-phase difference between D0 and D⊃̄0→KS,L0h⁺h^- (h=π, K) and its impact on the measurement of the CKM angle γ/Φ3

Authors:

Abstract:

Measurements of branching fractions for electromagnetic transitions involving the $\chi_{bJ}(1P)$ states

Authors:

Search for rare and forbidden decays of charm and charmed-strange mesons to final states h^±e e⁺

Authors:

Abstract:

Measurement of σ(pp→bb̄X) at √s=7 TeV in the forward region

Authors:

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Guy Wilkinson

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Upsilon(1S)->gamma+f2'(1525); f2'(1525)->K0sK0s decays

Authors:

Model-independent determination of the strong-phase difference between D0 and D⊃̄0→KS,L0h+h- (h=π, K) and its impact on the measurement of the CKM angle γ/Φ3

Authors:

Abstract:

Measurements of branching fractions for electromagnetic transitions involving the $\chi_{bJ}(1P)$ states

Authors:

Search for rare and forbidden decays of charm and charmed-strange mesons to final states h±e e+

Authors:

Abstract:

Measurement of σ(pp→bb̄X) at √s=7 TeV in the forward region

Authors:

Abstract:

Model-independent determination of the strong-phase difference between D0 and D⊃̄0→KS,L0h⁺h^- (h=π, K) and its impact on the measurement of the CKM angle γ/Φ3

Search for rare and forbidden decays of charm and charmed-strange mesons to final states h^±e e⁺