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M. R. Shepherd

Identifiers

  • name variant M. R. Shepherd 0.60 · backfill

Papers (70)

  1. Baryon-antibaryon photoproduction cross sections off the proton hep-ex · 2025 · author #116
  2. Observation of $e^{+}e^{-} \rightarrow K\bar{K}J/\psi$ at center-of-mass energies from 4.189 to 4.600 GeV hep-ex · 2018 · author #287
  3. Evidence for $e^{+}e^{-} \to \gamma\eta_c(1S)$ at center-of-mass energies between 4.01 and 4.60 GeV hep-ex · 2017 · author #291
  4. Measurement of the beam asymmetry $\Sigma$ for $\pi^0$ and $\eta$ photoproduction on the proton at $E_\gamma = 9$ GeV nucl-ex · 2017 · author #95
  5. Observation of $\eta^{\prime}\to\omega e^{+} e^{-}$ hep-ex · 2015 · author #266
  6. Searches for isospin-violating transitions $\chi_{c0,2} \rightarrow \pi^{0} \eta_{c}$ hep-ex · 2015 · author #269
  7. Measurement of $y_{CP}$ in $D^0-\overline{D}^0$ oscillation using quantum correlations in $e^+e^-\to D^0\overline{D}^0$ at $\sqrt{s}$ = 3.773\,GeV hep-ex · 2015 · author #269
  8. Study of J/psi->eta phi pi+pi- at BESIII hep-ex · 2014 · author #266
  9. Precision measurement of the $D^{*0}$ decay branching fractions hep-ex · 2014 · author #268
  10. Search for the $Y(4140)$ via $e^{+} e^{-} \to \gamma \phi J/\psi$ at $\sqrt{s}=$ 4.23, 4.26 and 4.36 GeV hep-ex · 2014 · author #266
  11. Observation of $e^+e^-\to \pi^0\pi^0 h_c$ and a neutral charmoniumlike structure $Z_c(4020)^0$ hep-ex · 2014 · author #266
  12. Search for C-parity violation in $J/ \psi \to \gamma\gamma$ and $ \gamma \phi$ hep-ex · 2014 · author #256
  13. Observation of $J/\psi \rightarrow p\bar{p}a_{0}(980)$ at BESIII hep-ex · 2014 · author #255
  14. A study of decays to strange final states with GlueX in Hall D using components of the BaBar DIRC physics.ins-det · 2014 · author #44
  15. Study of e$^+$e$^-$ $\rightarrow \text{p} \overline{\text{p}}\pi^0$ in the Vicinity of the $\psi\text{(3770)}$ hep-ex · 2014 · author #241
  16. Search for the radiative transitions $\psi(3770)\to\gamma\eta_c$ and $\gamma\eta_c(2S)$ hep-ex · 2014 · author #245
  17. Measurement of the branching fraction for $\psi(3686)\to\omega K^+ K^-$ hep-ex · 2014 · author #245
  18. Measurement of the $D\to K^-\pi^+$ strong phase difference in $\psi(3770)\to D^0\overline{D}{}^0$ hep-ex · 2014 · author #245
  19. Search for the rare decays $J/\psi \to D_s^-\rho^+$ and $J/\psi \to \overline{D}{}^0\overline{K}{}^{\ast0}$ hep-ex · 2014 · author #241
  20. Measurement of $\chi_{cJ}$ decaying into $\eta^{\prime}K^+K^-$ hep-ex · 2014 · author #241
  21. Amplitude Analysis of the $D^+ \to K^0_S \pi^+ \pi^0$ Dalitz Plot hep-ex · 2014 · author #241
  22. Precision measurements of $B(D^+ \rightarrow \mu^+ \nu_{\mu})$, the pseudoscalar decay constant $f_{D^+}$, and the quark mixing matrix element $|V_{\rm cd}|$ hep-ex · 2013 · author #241
  23. Observation of the decay $\psi(3686)$ $\rightarrow$ $\Lambda\bar\Sigma^{\pm}\pi^{\mp}+c.c.$ hep-ex · 2013 · author #238
  24. Observation of a charged charmoniumlike structure Z_c(4020) and search for the Z_c(3900) in e+e- to pi+pi-h_c hep-ex · 2013 · author #228
  25. Observation of a charged charmoniumlike structure in $e^+e^- \to (D^{*} \bar{D}^{*})^{\pm} \pi^\mp$ at $\sqrt{s}=4.26$GeV hep-ex · 2013 · author #225
  26. Precision Measurements of ${\cal B}[\psi(3686) \to \pi^+\pi^- J/\psi]$ and ${\cal B}[J/\psi\to l^+l^-]$ hep-ex · 2013 · author #223
  27. Observation of a structure at 1.84 GeV/c$^2$ in the $3(\pi^+\pi^-)$ mass spectrum in $J/\psi\rightarrow \gamma 3(\pi^+\pi^-)$ decays hep-ex · 2013 · author #225
  28. Search for Baryonic Decays of \psi(3770) and \psi(4040) hep-ex · 2013 · author #224
  29. An initial study of mesons and baryons containing strange quarks with GlueX nucl-ex · 2013 · author #47
  30. Search for the Lepton Flavor Violation Process $J/\psi \to e\mu$ at BESIII hep-ex · 2013 · author #224
  31. Partial wave analysis of $\psi(2S) \to p \bar{p}\eta$ hep-ex · 2013 · author #222
  32. Measurement of $\eta^\prime\rightarrow \pi^+\pi^- e^+e^-$ and $\eta^\prime\rightarrow \pi^+\pi^-\mu^+\mu^-$ hep-ex · 2013 · author #224
  33. Observation of a charged charmoniumlike structure in e+e- to pi+pi-J/psi at \sqrt{s}=4.26 GeV hep-ex · 2013 · author #230
  34. Study of $J/\psi \rightarrow \omega p \bar{p}$ at BESIII hep-ex · 2013 · author #226
  35. Evidence for \eta_{c}(2S) in \psi(3686) \to \gamma K_{S}^{0}K^{\pm}\pi^{\mp}\pi^{+}\pi^{-} hep-ex · 2013 · author #212
  36. Partial wave analysis of $J/\psi \to \gamma \eta \eta$ hep-ex · 2013 · author #222
  37. Search for $\eta$ and $\eta^\prime\to \pi^+ e^- \bar{\nu}_e +c.c.$ decays in $\jpsi \to \phi \eta$ and $\phi \eta^\prime$ hep-ex · 2012 · author #225
  38. Measurements of Baryon Pair Decays of $\chi_{cJ}$ Mesons hep-ex · 2012 · author #219
  39. A study of meson and baryon decays to strange final states with GlueX in Hall D (A proposal to the 39th Jefferson Lab Program Advisory Committee) hep-ex · 2012 · author #42
  40. Precision measurements of branching fractions for $ \psi'\to\pi^0 J\psi$ and $\eta J\psi$ hep-ex · 2012 · author #211
  41. Observation of $\eta_{c}$ decay into $\Sigma^{+}\bar{\Sigma}^{-}$ and $\Xi^{-}\bar{\Xi}^{+}$ final states hep-ex · 2012 · author #215
  42. Study of $\psi(3686)\to\pi^0 h_c, h_c\to\gamma\eta_c$ via $\eta_c$ exclusive decays hep-ex · 2012 · author #212
  43. Search for $\eta$ and $\eta'$ Invisible Decays in $J/\psi\to\phi\eta$ and $\phi\eta'$ hep-ex · 2012 · author #211
  44. Search for hadronic transition $\chi_{cJ}\to\eta_{c}\pi^{+}\pi^{-}$ and observation of $\chi_{cJ}\to K\bar{K}\pi\pi\pi$ hep-ex · 2012 · author #211
  45. Measurement of $\chi_{cJ}$ decaying into $p\bar{n}\pi^{-}$ and $p\bar{n}\pi^{-}\pi^{0}$ hep-ex · 2012 · author #212
  46. Experimental study of psi' decays to K+K- pi^0 and K+K- eta hep-ex · 2012 · author #219
  47. Observation of $e^{+}e^{-} \to \eta J/\psi$ at center-of-mass energy $sqrt{s}=4.009$ GeV hep-ex · 2012 · author #211
  48. Evidence for $\eta_{c} \rightarrow \gamma\gamma$ and Measurement of $J/\psi\rightarrow 3\gamma$ hep-ex · 2012 · author #212
  49. Observation of chi_{cJ} Decays to \Lambda \Lambda bar\pi^{+}\pi^{-} hep-ex · 2012 · author #212
  50. First observation of the isospin violating decay $J/\psi\rightarrow \Lambda\bar{\Sigma}^{0}+c.c.$ hep-ex · 2012 · author #219
  51. First observation of the M1 transition $\psi(3686)\to \gamma\eta_c(2S)$ hep-ex · 2012 · author #219
  52. Evidence for the Direct Two-Photon Transition from $\psi(3686)$ to $J/\psi$ hep-ex · 2012 · author #217
  53. Precision measurement of the branching fractions of J/psi -> pi+pi-pi0 and psi' -> pi+pi-pi0 hep-ex · 2012 · author #211
  54. First observation of $\eta(1405)$ decays into $f_{0}(980)\pi^0$ hep-ex · 2012 · author #204
  55. Measurements of the mass and width of the eta_c using psi' -> gamma eta_c hep-ex · 2011 · author #205
  56. Amplitude analyses of the decays chi_c1 -> eta pi+ pi- and chi_c1 -> eta' pi+ pi- hep-ex · 2011 · author #59
  57. Radiation Damage of F8 Lead Glass with 20 MeV Electrons physics.ins-det · 2011 · author #4
  58. Analysis of the Decay D^0 to K^0_S pi^0 pi^0 hep-ex · 2011 · author #8
  59. Observation of the Dalitz Decay $D_{s}^{*+} \to D_{s}^{+} e^{+} e^{-}$ hep-ex · 2011 · author #76
  60. Observation of the h_c(1P) using e^+e^- collisions above DDbar threshold hep-ex · 2011 · author #77
  61. Studies of D^+ -> {eta', eta, phi} e^+ nu_e hep-ex · 2010 · author #9
  62. Model-independent determination of the strong-phase difference between D^0 and D^0-bar-> K^0_S,L h^+ h^- (h=pi,K) and its impact on the measurement of the CKM angle gamma/phi_3 hep-ex · 2010 · author #4
  63. Search for rare and forbidden decays of charm and charmed-strange mesons to final states h^+- e^-+ e^+ hep-ex · 2010 · author #9
  64. Study of psi(2S) Decays to gamma p bar{p}, pi^0 p bar{p} and eta p bar{p} and Search for p bar{p} Threshold Enhancements hep-ex · 2010 · author #28
  65. Branching fractions for chi_cJ -> p p-bar pi^0, p p-bar eta, and p p-bar omega hep-ex · 2010 · author #32
  66. Precision timing measurement of phototube pulses using a flash analog-to-digital converter physics.ins-det · 2010 · author #3
  67. Analysis of D+ to K- pi+ e+ nu_e and D+ to K- pi+ mu+ nu_mu Semileptonic Decays hep-ex · 2010 · author #33
  68. Measurement of the eta_b(1S) mass and the branching fraction for Upsilon(3S) --> gamma eta_b(1S) hep-ex · 2009 · author #49
  69. Hadronic Physics at CLEO-c hep-ex · 2008 · author #1
  70. A Study of the \eta \pi^{0} Spectrum and Search for a J^{PC} = 1^{-+} Exotic Meson hep-ex · 2003 · author #7

Mentions

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Frequent Coauthors