M. Munerato
A5016525649- Particle physics theoretical and experimental studies
- Quantum Chromodynamics and Particle Interactions
- High-Energy Particle Collisions Research
- Neutrino Physics Research
- Dark Matter and Cosmic Phenomena
- Medical Imaging Techniques and Applications
- Atomic and Subatomic Physics Research
- Superconducting Materials and Applications
- Particle Detector Development and Performance
- Computational Physics and Python Applications
- Particle Accelerators and Free-Electron Lasers
- Black Holes and Theoretical Physics
- Nuclear physics research studies
- Dental Implant Techniques and Outcomes
- Radiation Detection and Scintillator Technologies
- Astrophysics and Cosmic Phenomena
- Bone Tissue Engineering Materials
- Cosmology and Gravitation Theories
- Distributed and Parallel Computing Systems
- Cleft Lip and Palate Research
- Inorganic Fluorides and Related Compounds
- Bone health and treatments
- Quantum chaos and dynamical systems
- Nuclear Physics and Applications
- Laser-Matter Interactions and Applications
Universidade Sagrado Coração
2015-2023
Istituto Nazionale di Fisica Nucleare, Sezione di Ferrara
2009-2014
University of Ferrara
2009-2014
Based on the full BABAR data sample, we report improved measurements of ratios R(D(*))=B(B[over ¯]→D(*)τ(-)ν[over ¯](τ))/B(B[over ¯]→D(*)ℓ(ℓ)(-)ν[over ¯](ℓ)), where ℓ is either e or μ. These are sensitive to new physics contributions in form a charged Higgs boson. We measure R(D)=0.440±0.058±0.042 and R(D(*))=0.332±0.024±0.018, which exceed standard model expectations by 2.0σ 2.7σ, respectively. Taken together, our results disagree with these at 3.4σ level. This excess cannot be explained...
A precise measurement of the cross section process $e^+e^-\toπ^+π^-(γ)$ from threshold to an energy 3GeV is obtained with initial-state radiation (ISR) method using 232fb$^{-1}$ data collected BaBar detector at $e^+e^-$ center-of-mass energies near 10.6GeV. The ISR luminosity determined a study leptonic $e^+e^-\toμ^+μ^-(γ)γ_{\rm ISR}$, which found agree next-to-leading-order QED prediction within 1.1%. for systematic uncertainty 0.5% in dominant $ρ$ resonance region. leading-order hadronic...
In a sample of $471\ifmmode\times\else\texttimes\fi{}{10}^{6}$ $B\overline{B}$ events collected with the BABAR detector at PEP-II ${e}^{+}{e}^{\ensuremath{-}}$ collider we study rare decays $B\ensuremath{\rightarrow}{K}^{(*)}{\ensuremath{\ell}}^{+}{\ensuremath{\ell}}^{\ensuremath{-}}$, where ${\ensuremath{\ell}}^{+}{\ensuremath{\ell}}^{\ensuremath{-}}$ is either or ${\ensuremath{\mu}}^{+}{\ensuremath{\mu}}^{\ensuremath{-}}$. We report results on partial branching fractions and isospin...
Although CP violation in the B meson system has been well established by factories, there no direct observation of time-reversal violation. The decays entangled neutral mesons into definite flavor states (B(0) or B(0)), and J/ψK(L)(0) ccK(S)(0) final (referred to as B(+) B(-)), allow comparisons between probabilities four pairs T-conjugated transitions, for example, B(0) → B(-) B(0), a function time difference two decays. Using 468 × 10(6) BB produced Υ(4S) collected BABAR detector at SLAC,...
We present a search for the decay ${B}^{+}\ensuremath{\rightarrow}{\ensuremath{\tau}}^{+}\ensuremath{\nu}$ using $467.8\ifmmode\times\else\texttimes\fi{}{10}^{6}$ $B\overline{B}$ pairs collected at $\ensuremath{\Upsilon}(4S)$ resonance with BABAR detector SLAC PEP-II $B$-Factory. select sample of events one completely reconstructed ${B}^{\ensuremath{-}}$ in hadronic mode (${B}^{\ensuremath{-}}\ensuremath{\rightarrow}{D}^{(*)0}{X}^{\ensuremath{-}}$ and...
We report the results of a study exclusive charmless semileptonic decays, B^0 --> pi^- l^+ nu, B^+ pi^0 omega eta nu and eta^' (l = e or mu) undertaken with approximately 462x10^6 B\bar{B} pairs collected at Upsilon(4S) resonance BABAR detector. The analysis uses events in which signal B decays are reconstructed loose neutrino reconstruction technique. obtain partial branching fractions several bins q^2, square momentum transferred to lepton-neutrino pair, for nu. From these distributions,...
We perform amplitude analyses of the decays ${B}^{0}\ensuremath{\rightarrow}{K}^{+}{K}^{\ensuremath{-}}{K}_{S}^{0}$, ${B}^{+}\ensuremath{\rightarrow}{K}^{+}{K}^{\ensuremath{-}}{K}^{+}$, and ${B}^{+}\ensuremath{\rightarrow}{K}_{S}^{0}{K}_{S}^{0}{K}^{+}$, measure $CP$-violating parameters partial branching fractions. The results are based on a data sample approximately $470\ifmmode\times\else\texttimes\fi{}{10}^{6}$ $B\overline{B}$ decays, collected with BABAR detector at PEP-II...
We study the process ${e}^{+}{e}^{\ensuremath{-}}\ensuremath{\rightarrow}\ensuremath{\psi}(2S){\ensuremath{\pi}}^{+}{\ensuremath{\pi}}^{\ensuremath{-}}$ with initial-state-radiation events produced at PEP-II asymmetric-energy collider. The data were recorded BABAR detector center-of-mass energies and near $\mathrm{\ensuremath{\Upsilon}}(\mathrm{nS})$ ($n=2,3,4$) resonances correspond to an integrated luminosity of $520\text{ }\text{ }{\mathrm{fb}}^{\ensuremath{-}1}$. investigate...
We study the process $e^+e^-\to J/\psi\pi^{+}\pi^{-}$ with initial-state-radiation events produced at PEP-II asymmetric-energy collider. The data were recorded BaBar detector center-of-mass energies 10.58 and 10.54 GeV, correspond to an integrated luminosity of 454 $\mathrm{fb^{-1}}$. investigate $J/\psi \pi^{+}\pi^{-}$ mass distribution in region from 3.5 5.5 $\mathrm{GeV/c^{2}}$. Below 3.7 $\mathrm{GeV/c^{2}}$ $\psi(2S)$ signal dominates, above 4 there is a significant peak due Y(4260). A...
The photon spectrum in the inclusive electromagnetic radiative decays of $B$ meson, $B\ensuremath{\rightarrow}{X}_{s}\ensuremath{\gamma}$ plus $B\ensuremath{\rightarrow}{X}_{d}\ensuremath{\gamma}$, is studied using a data sample $(382.8\ifmmode\pm\else\textpm\fi{}4.2)\ifmmode\times\else\texttimes\fi{}{10}^{6}\mathit{\ensuremath{\Upsilon}}(4S)\ensuremath{\rightarrow}B\overline{B}$ collected by BABAR experiment at SLAC. used to extract branching fraction...
We study the process $\ensuremath{\gamma}\ensuremath{\gamma}\ensuremath{\rightarrow}J/\ensuremath{\psi}\ensuremath{\omega}$ using a data sample of $519.2\text{ }\text{ }{\mathrm{fb}}^{\ensuremath{-}1}$ recorded by BABAR detector at SLAC PEP-II asymmetric-energy ${e}^{+}{e}^{\ensuremath{-}}$ collider center-of-mass energies near $\ensuremath{\Upsilon}(nS)$ ($n=2,3,4$) resonances. confirm existence charmoniumlike resonance $X(3915)$ decaying to $J/\ensuremath{\psi}\ensuremath{\omega}$ with...
We study the processes ${e}^{+}{e}^{\ensuremath{-}}\ensuremath{\rightarrow}{K}^{+}{K}^{\ensuremath{-}}{\ensuremath{\pi}}^{+}{\ensuremath{\pi}}^{\ensuremath{-}}\ensuremath{\gamma}$, ${K}^{+}{K}^{\ensuremath{-}}{\ensuremath{\pi}}^{0}{\ensuremath{\pi}}^{0}\ensuremath{\gamma}$, and ${K}^{+}{K}^{\ensuremath{-}}{K}^{+}{K}^{\ensuremath{-}}\ensuremath{\gamma}$, where photon is radiated from initial state. About 84 000, 8000, 4200 fully reconstructed events, respectively, are selected $454\text{...
We use 429 fb$^{-1}$ of $e^+e^-$ collision data collected at the $\Upsilon(4S)$ resonance with BABAR detector to measure radiative transition rate $b\rightarrow s\gamma$ a sum 38 exclusive final states. The inclusive branching fraction minimum photon energy 1.9 GeV is found be $\mathcal{B}(\bar B \rightarrow X_{s}\gamma)=(3.29\pm 0.19\pm 0.48)\times 10^{-4}$ where first uncertainty statistical and second systematic. also moments spectrum extract best fit values for heavy-quark parameters,...
Recent astrophysical and terrestrial experiments have motivated the proposal of a dark sector with GeV-scale gauge boson force carriers new Higgs bosons. We present search for using 516 fb-1 data collected BABAR detector. do not observe significant signal we set 90% confidence level upper limits on product Standard Model-dark mixing angle coupling constant.
We present improved measurements of $CP$-violation parameters in the decays ${B}^{0}\ensuremath{\rightarrow}{\ensuremath{\pi}}^{+}{\ensuremath{\pi}}^{\ensuremath{-}}$, ${B}^{0}\ensuremath{\rightarrow}{K}^{+}{\ensuremath{\pi}}^{\ensuremath{-}}$, and ${B}^{0}\ensuremath{\rightarrow}{\ensuremath{\pi}}^{0}{\ensuremath{\pi}}^{0}$, branching fractions for ${B}^{0}\ensuremath{\rightarrow}{\ensuremath{\pi}}^{0}{\ensuremath{\pi}}^{0}$ ${B}^{0}\ensuremath{\rightarrow}{K}^{0}{\ensuremath{\pi}}^{0}$....
We present searches for rare or forbidden charm decays of the form ${X}_{c}^{+}\ensuremath{\rightarrow}{h}^{\ifmmode\pm\else\textpm\fi{}}{\ensuremath{\ell}}^{\ensuremath{\mp}}{\ensuremath{\ell}}^{(\ensuremath{'})+}$, where ${X}_{c}^{+}$ is a hadron (${D}^{+}$, ${D}_{s}^{+}$, ${\ensuremath{\Lambda}}_{c}^{+}$), ${h}^{\ifmmode\pm\else\textpm\fi{}}$ pion, kaon, proton, and ${\ensuremath{\ell}}^{(\ensuremath{'})\ifmmode\pm\else\textpm\fi{}}$ an electron muon. The analysis based on $384\text{...
We present a search for the lepton flavor violating decay modes ${B}^{\ifmmode\pm\else\textpm\fi{}}\ensuremath{\rightarrow}{h}^{\ifmmode\pm\else\textpm\fi{}}\ensuremath{\tau}\ensuremath{\ell}$ ($h=K$, $\ensuremath{\pi}$; $\ensuremath{\ell}=e$, $\ensuremath{\mu}$) using BABAR data sample, which corresponds to $472\ifmmode\times\else\texttimes\fi{}{10}^{6}$ $B\overline{B}$ pairs. The uses events where one $B$ meson is fully reconstructed in of several hadronic final states. Using momenta $B$,...
We search for hadronic decays of a light Higgs boson (A0) produced in radiative an Upsilon(2S) or Upsilon(3S) meson, Upsilon --> gamma A0. The data have been recorded by the BABAR experiment at and center mass energies, include (121.3 \pm 1.2) x 10^6 (98.3 0.9) mesons. No significant signal is observed. set 90% confidence level upper limits on product branching fractions B(Upsilon(nS)-->gamma A0) B(A0-->hadrons) (n=2 3) that range from 1 10^{-6} A0 0.3 GeV/c^2 to 8 10^{-5} 7 GeV/c^2.
We search for the $Z_1(4050)^+$ and $Z_2(4250)^+$ states, reported by Belle Collaboration, decaying to $\chi_{c1} \pi^+$ in decays $\bar B^0 \to \chi_{c1} K^- $B^+ K^0_S where \jpsi \gamma$. The data were collected with BaBar detector at SLAC PEP-II asymmetric-energy $e^+e^-$ collider operating center-of-mass energy 10.58 GeV, correspond an integrated luminosity of 429 fb$^{-1}$. In this analysis, we model background-subtracted, efficiency-corrected $\chi_{c1}\pi$ mass distribution using $K...
We present a measurement of ${D}^{0}\mathrm{\text{\ensuremath{-}}}{\overline{D}}^{0}$ mixing and $CP$ violation using the ratio lifetimes simultaneously extracted from sample ${D}^{0}$ mesons produced through flavor-tagged process ${D}^{*+}\ensuremath{\rightarrow}{D}^{0}{\ensuremath{\pi}}^{+}$, where decays to ${K}^{\ensuremath{\mp}}{\ensuremath{\pi}}^{\ifmmode\pm\else\textpm\fi{}}$, ${K}^{\ensuremath{-}}{K}^{+}$, or ${\ensuremath{\pi}}^{\ensuremath{-}}{\ensuremath{\pi}}^{+}$, along with...
We search for a low-mass scalar $CP$-odd Higgs boson, ${A}^{0}$, produced in the radiative decay of upsilon resonance and decaying into ${\ensuremath{\tau}}^{+}{\ensuremath{\tau}}^{\ensuremath{-}}$ pair: $\ensuremath{\Upsilon}(1S)\ensuremath{\rightarrow}\ensuremath{\gamma}{A}^{0}$. The production $\ensuremath{\Upsilon}(1S)$ mesons is tagged by $\ensuremath{\Upsilon}(2S)\ensuremath{\rightarrow}{\ensuremath{\pi}}^{+}{\ensuremath{\pi}}^{\ensuremath{-}}\ensuremath{\Upsilon}(1S)$ transitions,...
The photon spectrum in B --> X_s {\gamma} decay, where is any strange hadronic state, studied using a data sample of (382.8\pm 4.2) \times 10^6 e^+ e^- \Upsilon(4S) BBbar events collected by the BABAR experiment at PEP-II collider. used to measure branching fraction B(B \gamma) = (3.21 \pm 0.15 0.29 0.08)\times 10^{-4} and first, second, third moments <E_\gamma> 2.267 0.019 0.032 0.003 GeV,, <(E_\gamma - <E_\gamma>)^2> 0.0484 0.0053 0.0077 0.0005 GeV^2, <E_\gamma>)^3> -0.0048 0.0011 0.0004...
We report a search for $CP$ violation in the decay ${\ensuremath{\tau}}^{\ensuremath{-}}\ensuremath{\rightarrow}{\ensuremath{\pi}}^{\ensuremath{-}}{K}_{S}^{0}(\ensuremath{\ge}0{\ensuremath{\pi}}^{0}){\ensuremath{\nu}}_{\ensuremath{\tau}}$ using data set of $437\ifmmode\times\else\texttimes\fi{}{10}^{6}$ $\ensuremath{\tau}$-lepton pairs, corresponding to an integrated luminosity $476\text{ }\text{ }{\mathrm{fb}}^{\ensuremath{-}1}$, collected with BABAR detector at PEP-II asymmetric-energy...
We analyze the decay ${B}^{0}\ensuremath{\rightarrow}{K}^{+}{\ensuremath{\pi}}^{\ensuremath{-}}{\ensuremath{\pi}}^{0}$ with a sample of $4.54\ifmmode\times\else\texttimes\fi{}{10}^{8}$ $B\overline{B}$ events collected by BABAR detector at PEP-II asymmetric-energy $B$ factory SLAC, and extract complex amplitudes seven interfering resonances over Dalitz plot. These results are combined measured in...
We present measurements of the branching fractions 3-prong and 5-prong tau decay modes using a sample 430 million lepton pairs, corresponding to an integrated luminosity 468 fb-1, collected with BaBar detector at PEP-II asymmetric energy e+e- storage rings. The \tau- --> (3\pi)- \eta \nu, \omega \pi- f_1(1285)\nu, are presented as well new limit on fraction isospin-forbidden, second-class current, \pi-\eta'(958)\nu, decay. find no evidence for charged kaons in these place first upper limits...