[PDF] Top 20 Observation of a significant excess of pi(0)pi(0) events in B meson decays
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Observation of a significant excess of pi(0)pi(0) events in B meson decays
... G. Schott, 64 G. Vasseur, 64 Ch. Yeche, 64 M. Zito, 64 M.V. Purohit, 65 A.W. Weidemann, 65 F. X. Yumiceva, 65 D. Aston, 66 R. Bartoldus, 66 N. Berger, 66 A. M. Boyarski, 66 O. L. Buchmueller, 66 M. R. Convery, 66 D. P. ... See full document
7
Observation of a narrow meson state decaying to D-s(+)pi(0) at a mass of 2.32 GeV/c(2)
... pair of photons. Events of interest are required to have a ratio of the second to the zeroth Fox-Wolfram moment [11] less than 0.9. In addition, they must contain at least three reconstructed tracks yielding a net ... See full document
7
Measurement of the B-0-(B)over-bar(0) mixing parameter Delta m(d) using semileptonic B-0 decays
... (7.8%), B ! D ‘ events ...same B meson is estimated with MC to be ...D 0 mass sideband events and from fake D events reconstructed with wrong-charge slow ...cos B;D ... See full document
6
Observation of Ds+K- and evidence for D-s(+)pi(-) final states in neutral B decays
... for events from the signal region and the fitted signal plus background combined shape by solid lines and back- ground shape including the peaking background by dashed ...1:0 0:5 and 1:6 1:0 ... See full document
6
Measurements of branching fractions and CP-violating asymmetries in B-0 ->pi(+)pi(-), K+ pi(-), K+K- decays
... the B tag ...D decays, and high-momentum charged particles from B ...decays. Events are assigned to one of five mutu- ally exclusive tagging categories based on the estimated mistag ... See full document
7
First observation of B−0→J/ψK+K− and search for B−0→J/ψϕ decays
... decay B ! J= c K as the normalization channel for branching fraction ...K meson. The BDT training uses B ! J= c K simulated events as signal and data in the sideband region 5400 < m ð J= c ... See full document
16
Observations of Λ b 0 → ΛK +π− and Λ b 0 → ΛK + K − decays and searches for other Λ b 0 and Ξ b 0 decays to Λh + h′− final states
... simulated events and, for the PID requirements, high-yield data control samples of D 0 → K − π + and Λ → pπ − decays ...signal events, over the phase space of the ...of b baryon ... See full document
22
Limits on D-0-(D)over-bar(0) mixing and CP violation from the ratio of lifetimes for decay to K-pi(+), K-K+, and pi(-)pi(+)
... measurements of this type [10 –13], all of which assumed CP conservation. We also obtain for the first time a measurement of Y 0:8 0:6stat: 0:2syst: %. We are grateful for the excellent luminosity ... See full document
7
J/ψ suppression and low mass dileptons in the NA60 experiment
... Abstract. The NA60 experiment, at CERN SPS, has studied muon pairs production in p-A and A-A collisions at 158 GeV. After an introduction to explain why the dimuon measurements are a useful tool to investigate the ... See full document
37
Search for D-0-(D)over-bar(0) mixing and a measurement of the doubly Cabibbo-suppressed decay rate in D-0 -> K pi decays
... P. Strother, 35 P. B. Vidal, 35 G. Cowan, 36 H. U. Flaecher, 36 S. George, 36 M. G. Green, 36 A. Kurup, 36 C. E. Marker, 36 T. R. McMahon, 36 S. Ricciardi, 36 F. Salvatore, 36 G. Vaitsas, 36 M. A. Winter, 36 D. ... See full document
7
Measurement of B-0-(B)over-bar(0) flavor oscillations in hadronic B-0 decays
... classifies events into categories i depending on the source of the available tagging information, incorrectly identifies the flavor of B tag with a probability w i with reduction of the ... See full document
7
Search for rare or forbidden decays of the $D^{0}$ meson
... a signal yield of zero. The mean numbers of normaliza- tion and background candidates used in the ensembles are taken from the fits to the data. The numbers of background and normalization mode candidates are al- lowed ... See full document
8
Observation of B -> K^0_S pi^+ pi^- and B -> K^*(892) ^+- pi^-+ and measurement of the charge asymmetry in B -> K^*(892)^+- pi^-+
... [r] ... See full document
176
Search for CP violation in D + → ϕπ + and $ D_s^{+}\to K_S^0{\pi^{+}} $ decays
... between decays with high and low values of K − π + invariant mass, which is correlated with the momenta of the ...to significant systematic biases on A CP | S ... See full document
20
Measurement of the helicity asymmetry E in omega -> pi(+)pi(-)pi(0) photoproduction
... Figure 7 shows the E observable for the photoproduction of a single-ω meson off the proton from this analysis (red circles •). The angular distributions are shown for 100-MeV- wide bins in the incoming photon ... See full document
12
Observation of B0s→χc1ϕ decay and study of B0→χc1,2K∗0 decays
... K + π − and K + K − invariant mass distributions are modelled with the sum of a relativistic P-wave Breit–Wigner function with the natural width fixed to the known value [20] and a non-resonant component modelled with ... See full document
17
Semileptonic decays B >pi lepton neutrino and D >pi lepton neutrion from lattice QCD
... for B → l , and related D decays, has also been carried out with quark models and QCD sum ...for B decay 兲 they overlap better with the distribution of events in an ... See full document
18
Observation of the Bc meson mass in the exclusive decay Bc > Jpsi Pi
... J. F. Bartlett, 50 U. Bassler, 18 D. Bauer, 43 S. Beale, 6 A. Bean, 58 M. Begalli, 3 M. Begel, 73 C. Belanger-Champagne, 41 L. Bellantoni, 50 A. Bellavance, 50 J. A. Benitez, 65 S. B. Beri, 27 G. Bernardi, 17 R. ... See full document
6
Measurement of branching fractions and mass sepctra in B to K pi pi gamma decays
... These simulated samples are implemented in the EvtGen event generator as sequential incoher- ent decays, in which each intermediate resonance is on-shell and there is no interference among channels that produce ... See full document
171
Effective lifetime measurements in the B s(0) > K+K , B 0 > K+pi( ) and B s(0) > pi K +( ) decays
... The LHCb detector [15] is a single-arm forward spectrometer covering the pseudorapidity range 2 < η < 5, designed for the study of particles containing b or c quarks. The detector includes a high-precision ... See full document
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