Sandra Filippa Amato
Bacharel Em Fisica pela Universidade Federal do Rio de Janeiro (1984), mestrado em Física pelo Centro Brasileiro de Pesquisas Físicas (1987) e doutorado sanduiche em Física pelo Centro Brasileiro de Pesquisas Físicas com estadia de 2 anos no Fermilab-Chicago (1992). Atualmente é professora Titular da Universidade Federal do Rio de Janeiro. Tem experiência na área de Física, com ênfase em Física Experimental de Altas Energias. A Tese de Doutorado foi desenvolvida nos experimentos E769 e E791 do FermiLab. Ao ingressar na UFRJ em 1993 como professor adjunto passou a desenvolver sua pesquisa no experimento DELPHI do LEP (CERN) tendo realizado pós-doutoramento no CERN em 1995. Atualmente o trabalho de pesquisa é dedicado ao experimento LHCb do acelerador LHC do CERN. A principal área de atuação neste experimento é a física envolvida nos decaimentos dos mésons D e Ds em 3 hádrons, incluindo procura por violação de CP, medida de Branching ratio e análise de amplitude.
graduate at Bacharel Em Fisica from Universidade Federal do Rio de Janeiro (1984), master's at Physic from Centro Brasileiro de Pesquisas Físicas (1987) and ph.d. at Physic from Centro Brasileiro de Pesquisas Físicas (1992). Has experience in Physic, focusing on Properties of Specific Particles and Ressonance, acting on the following subjects: tau, b, lhcb, production and delphi.
Áreas De Investigação
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- Publicações
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Visão geral
Publicações
publicações selecionadas
- Model-Independent Study of Structure in
- Search for the doubly charmed baryon $$ {arXi}_{cc}^{+} $$ in the $$ {arXi}_c^{+}{pi}^{-}{pi}^{+} $$ final state
- Measurement of prompt charged-particle production in pp collisions at $$ sqrt{mathrm{s}} $$ = 13 TeV
- Precise determination of the $$B_{mathrm{s}}^0$$-$$overline B_{mathrm{s}}^0$$ oscillation frequency
- Measurement of the photon polarization in decays
- Search for the baryon- and lepton-number violating decays and
- First branching fraction measurement of the suppressed decay
- Branching Fraction Measurements of the Rare and Decays
- Search for the rare hadronic decay
- Search for decays at LHCb
- Observation of the Decay
- Search for the doubly charmed baryon Ω+cc
- Test of lepton universality in beauty-quark decays
- Study of $$ {mathrm{B}}_{mathrm{s}}^0 $$ → J/ψπ+π−K+K− decays
- Producao de pares particula-antiparticula em reacoes a quatro corpos nas interacoes pi+p a 16 Gev/c
- Measurement of the branching fraction of the $${{B} ^0} { ightarrow }{{D} ^+_{s}} {{pi } ^-} $$ decay
- Measurement of the $$ {Lambda}_c^{+} $$ to D0 production ratio in periphera PbPb collisions at $$ sqrt{s_{ extrm{NN}}} $$ = 5.02 TeV
- First observation of the decay
- First measurement of the $$C!P$$-violating phase in $${{B} ^0_{s}} ! ightarrow {{J /psi }} ($$ $$ ightarrow $$ $$e ^+e ^-$$)$$phi $$ decays
- Measurement of the CKM angle γ and $$ {B}_s^0hbox{-} {overline{B}}_s^0 $$ mixing frequency with $$ {B}_s^0 o {D}_s^{mp }{h}^{pm }{pi}^{pm }{pi}^{mp } $$ decays
- Measurement of the Z boson production cross-section in proton-lead collisions at $$ sqrt{s_{ extrm{NN}}} $$ = 8.16 TeV
- Precision measurement of forward Z boson production in proton-proton collisions at $$ sqrt{mathrm{s}} $$ = 13 TeV
- Determination of quantum numbers for several excited charmed mesons observed in decays
- Measurement of -Averaged Observables in the
- Measurement of - production in pp collisions at $$ sqrt{s} $$ = 5 TeV
- Constraints on the
- First Observation of the Decay
- Observation of sizeable contribution to
- Search for the Rare Decays and
- Search for CP violation in $${{{arXi }} ^+_{c}} ightarrow {p} {{K} ^-} {{pi } ^+} $$ decays using model-independent techniques
- Measurement of the charm mixing parameter using two-body meson decays
- Study of Bosons Produced in Association with Charm in the Forward Region
- Precise measurement of the ratio of fragmentation fractions and of
- Measurement of with
- First observation and branching fraction measurement of the $$ {Lambda}_b^0 o {D}_s^{-}p $$ decay
- First observation of the decay
- Measurement of -Averaged Observables in the Decay
- Angular Analysis of
- Identification of charm jets at LHCb
- Measurement of the
- Updated search for $$ {B}_c^{+} $$ decays to two charm mesons
- Search for CP violation in $$ {D}_{(s)}^{+} o {h}^{+}{pi}^0 $$ and $$ {D}_{(s)}^{+} o {h}^{+}eta $$ decays
- Measurement of
- Observation of an exotic narrow doubly charmed tetraquark
- Search for the rare decay B 0 → J/ψ- *
- Amplitude analysis of
- Open charm production and asymmetry in pNe collisions at $$sqrt{s_{scriptscriptstyle { extrm{NN}}}} = 68.5$$ $$, ext {Gehspace{-1.00006pt}V}$$
- Amplitude analysis of the D+ → π−π+π+ decay and measurement of the π−π+ S-wave amplitude
- Angular analysis of $$ {B}^0 o {D}^{ast -}{D}_s^{ast +} $$ with $$ {D}_s^{ast +} o {D}_s^{+}gamma $$ decays
- Test of lepton universality with $$ {Lambda}_b^0 o {pK}^{-}{mathrm{ell}}^{+}{mathrm{ell}}^{-} $$ decays
- Measurement of CP observables in B± → DK± and B± → Dπ± with D → $$ {K}_{mathrm{S}}^0{K}^{pm }{pi}^{mp } $$ decays
- Search for time-dependent violation in and decays
- Observation of a New Excited Meson in
- Search for heavy neutral leptons in $$W^+ ightarrow mu ^{+}mu ^{pm }, ext {jet}$$ decays
- Measurement of CP violation in B0→ D∗±D- decays
- Observation of a $$ {arLambda}_b^0 $$ − $$ {overline{arLambda}}_b^0 $$ production asymmetry in proton-proton collisions at $$ sqrt{s} $$ = 7 and 8 TeV
- Observation of excited baryons in decays
- Study of charmonium and charmonium-like contributions in B+ → J/ψηK+ decays
- Search for $$D^{*}(2007)^{0} ightarrow mu ^{+} mu ^{-}$$ in $$B^{-} ightarrow pi ^{-} mu ^{+} mu ^{-}$$ decays
- Search for the decay B0 → -μ+μ−
- First Measurement of the
- Amplitude analysis of the $$ {D}_s^{+} $$ → π−π+π+ decay
- Observation of the $$ {B}_s^0 $$ → D*+D*− decay
- Centrality determination in heavy-ion collisions with the LHCb detector
- Observation of the doubly charmed baryon decay $$ {arXi}_{cc}^{++} o {arXi}_c^{prime +}{pi}^{+} $$
- photoproduction in Pb-Pb peripheral collisions at
- Measurement of the CKM angle γ in B± → DK± and B± → Dπ± decays with D → $$ {K}_{mathrm{S}}^0 $$h+h−
- Measurement of ${{ arXi_{cc}^{++}}}$ production in pp collisions at ${sqrt{ s}=13}$ TeV
- Updated measurement of decay-time-dependent asymmetries in
- Tests of Lepton Universality Using
- Measurement of the charm mixing parameter
- Measurement of the $${eta _{c}} (1S)$$ production cross-section in $$p $$ $$p $$ collisions at $$sqrt{s} = 13$$ $$, ext {TeV}$$
- Measurement of asymmetry in
- Isospin Amplitudes in
- Observation of the suppressed
- Observation of a new state
- Observation of a Resonance Consistent with a Strange Pentaquark Candidate in Decays
- Measurement of J/ψ production cross-sections in pp collisions at $$ sqrt{s} $$ = 5 TeV
- Measurement of CP observables in B± → D(*)K± and B± → D(*)π± decays using two-body D final states
- Observation of the decay $$ {Lambda}_{mathrm{b}}^0 $$ → χc1pπ−
- Search for the Rare Decays
- Search for massive long-lived particles decaying semileptonically at $${sqrt{s}}=13,hbox {TeV}$$
- Observation of New Baryons Decaying to
- First observation of the decay
- Charmonium production in pNe collisions at $$sqrt{s_{scriptscriptstyle ext {NN}}} =68.5$$ GeV
- Search for the lepton-flavour violating decays B0 → K*0μ±e- and $$ {B}_s^0 $$ → -μ±e-
- Amplitude analysis of the
- Measurement of antiproton production from antihyperon decays in $${p} extrm{He}$$ collisions at $$sqrt{s_{scriptscriptstyle mathrm NN}} =110$$ $$, ext {Gehspace{-1.00006pt}V}$$
- Observation of the semileptonic decay B+→pp¯μ+νμ$$ {B}^{+} o poverline{p}{mu}^{+}{ u}_{mu } $$
- Simultaneous determination of CKM angle γ and charm mixing parameters
- Evidence for a New Structure in the and
- Measurement of χc1(3872) production in proton-proton collisions at $$ sqrt{s} $$ = 8 and 13 TeV
- Constraints on the CKM angle γ from B± → Dh± decays using D → h±h--π0 final states
- Observation of Several Sources of Violation in
- Search for
- Observation of the $$ {B}_s^0 $$ → D*±D- decay
- Study of the lineshape of the stat
- Observation of New Resonances Decaying to and
- Observation of New Baryons Decaying to
- Search for direct violation in charged charmless decays
- Study of exclusive photoproduction of charmonium in ultra-peripheral lead-lead collisions
- Study of the doubly charmed tetraquark $${{{{{{ m{T}}}}}}}_{{{{{{ m{c}}}}}}{{{{{ m{c}}}}}}}^{+}$$
- Amplitude analysis of the
- Measurement of the Nuclear Modification Factor and Prompt Charged Particle Production in -Pb and Collisions at
- Search for Rare Decays of Mesons into Two Muons
- Precision measurement of the -cc++$$ { arXi}_{cc}^{++} $$ mass
- Observation of a new baryon state in the $$ {Lambda}_{mathrm{b}}^0{pi}^{+}{pi}^{-} $$ mass spectrum
- Determination of quantum numbers for several excited charmed mesons observed in
- Produção de Pares Partícula Antipartícula em Reações a Quatro Corpos na Interação pi- p a 16 GeV/c
- Measurement of the CKM angle γ with B± → D[K-π±π±π-]h± decays using a binned phase-space approach
- Observation of Multiplicity Dependent Prompt
- Search for violation in
- Observation of the Mass Difference between Neutral Charm-Meson Eigenstates
- Measurement of CP asymmetries in $$ {D}_{(s)}^{+} o eta {pi}^{+} $$ and $$ {D}_{(s)}^{+} o {eta}^{prime }{pi}^{+} $$ decays
- Search for the doubly heavy baryons and decaying to and *
- Measurement of the prompt-production cross-section ratio
- Amplitude analysis of the
- Measurement of the shape of the $$ {B}_s^0 o {D}_s^{ast -}{mu}^{+}{ u}_{mu } $$ differential decay rate
- Measurement of the $$ {Lambda}_b^0 $$→ J/ψ- angular distribution and the $$ {Lambda}_b^0 $$ polarisation in pp collisions
- Measurement of the W boson mass
- Study of the ψ2(3823) and χc1(3872) states in B+ → (J/ψπ+π−)K+ decays
- Measurement of the ratio of branching fractions $$ mathcal{B}left({B}_c^{+} o {B}_s^0{pi}^{+} ight)/mathcal{B}left({B}_c^{+} o J/psi {pi}^{+} ight) $$
- Precision measurement of the $$ {B}_c^{+} $$ meson mass
- Direct violation in charmless three-body decays of mesons
- Search for the doubly heavy baryon decaying to *
- Angular analysis of the rare decay $$ {B}_s^0 $$ → -μ+μ−
- Search for the doubly heavy $$ {Xi}_{bc}^0 $$ baryon via decays to D0pK−
- Search for the lepton-flavour violating decays B0 → K*0τ±μ-
- Measurement of differential $$ boverline{b} $$- and $$ coverline{c} $$-dijet cross-sections in the forward region of pp collisions at $$ sqrt{s} $$ = 13 TeV
- Nuclear Modification Factor of Neutral Pions in the Forward and Backward Regions in Collisions
- Observation of Enhanced Double Parton Scattering in Proton-Lead Collisions at
- Observation of new excited $${B} ^0_{s} $$ states
- Observation of the
- Observation of the
- Search for violation and observation of violation in decays
- Study of coherent J/ψ production in lead-lead collisions at $$ sqrt{{mathrm{s}}_{mathrm{NN}}} $$ = 5 TeV
- Search for the doubly charmed baryon $$Xi_{cc}^+$$-cc+
- Measurement of the Nuclear Modification Factor and Prompt Charged Particle Production in -Pb and Collisions at
- First Observation of Excited States
- First Observation of a Doubly Charged Tetraquark and Its Neutral Partner
- Study of $$ {mathrm{B}}_{mathrm{c}}^{+} $$ decays to charmonia and three light hadrons
- Measurement of Variation with Proton-Proton Collision Energy and -Meson Kinematics
- Measurement of the branching fraction of the decay
- A Comparison of CPU and GPU Implementations for the LHCb Experiment Run 3 Trigger
- Measurement of $${psi {(2S)}} $$ production cross-sections in proton-proton collisions at $$sqrt{s} =7$$ and $$13 ext { TeV} $$
- Analysis of Neutral -Meson Decays into Two Muons
- $${{J}/psi }$$ and $${{D}} ^0$$ production in $$sqrt{s_{scriptscriptstyle ext {NN}}} =68.5, ext {GeV} $$ PbNe collisions
- Observation of CP violation in two-body $$ {B}_{(s)}^0 $$-meson decays to charged pions and kaons
- Search for the radiative $$ {Xi}_b^{-} $$ → -−γ decay
- Branching Fraction Measurements of the Rare
- Observation of $$ {Lambda}_b^0 $$ → D+pπ−π− and $$ {Lambda}_b^0 $$ → D*+pπ−π− decays
- Producao do meson D* em colisoes hadron-nucleo a 250 GeV, observado no decaimento D0pi, D0->Kpipi0
- Searches for 25 rare and forbidden decays of D+ and $$ {D}_s^{+} $$ mesons
- Measurement of the relative branching fractions of
- Measurement of branching fraction ratios for B+ → D*+D−K+, B+ → D*−D+K+, and B0 → D*−D0K+ decays
- Measurement of $$ au _ ext {L}$$ using the $${B} _s^0 ightarrow J/psi eta $$ decay mode
- Searches for low-mass dimuon resonances
- Search for the lepton flavour violating decay B+ → K+μ−τ+ using $$ {B}_{s2}^{ast 0} $$ decays
- First Observation of Excited States
- Angular Analysis of the
- Search for direct violation in charged charmless decays
- Constraints on the Branching Fraction
- Observation of Two New Excited States Decaying to
- Searches for rare $$ {B}_s^0 $$ and B0 decays into four muons
- Search for CP violation in $$ {D}_{(s)}^{+} $$ → K−K+K+ decays
- Test of lepton flavor universality using
- Measurement of Violation in the Decay
- Search for long-lived particles decaying to $$e ^pm $$ $$mu ^mp $$ $$ u $$
Ensino
theses/dissertations advising
- Amplitude Analysis of D+ => K-K+pi+ Decay with LHCb 2012 Data and RF-foil Simulations for the LHCb Upgrade
- Busca por Violação de CP em decaimentos de 3 corpos do méson D
- Busca por violação de CP no Decaimento D+->K+K-(pi)+ no Experimento LHCb
- Sensibilidade ao Parâmetro Phi_s com o Canal de Decaimento Bs-> Phi Phi e Efeitos Sistemáticos No Experimento LHCb
- Sequência Didática sobre as Leis de Newton para Alunos com Deficiências Visuais
- Amplitude Analysis of the Decay D->KKP with LHCb 2012 Data and RF foil Simulations for the LHCb Upgrade
- Medida da Taxa de Ramificação Relativa do decaimento D+->K+K+K- no experimento LHCb
- Estudo da Sensibilidade de Observacao do Decaimento Raro Bs->mu+mu- no Detetor Otimizado LHCb
- Estudo da Sensibilidade de observação do Decaimento Raro Bs->mumu no Detetor Otimizado LHCb
- Estudo de Violação de CP no decaimento Bd->JPsi(mumu)Ks(pipi), determinação de vértices e identificação de muons no experimento LHCb