Coelho, Joao A.B. - Resultats de la cerca

Pàgina inicial > Resultats de la cerca: Coelho, Joao A.B.

Cerca col·leccions:

Ordena'ls per:	Mostrar els resultats:	Format de visualizació:

CERN Document Server	189 registres trobats 1 - 10 anar al registre:	La cerca s'ha fet en 1.10 segons.

Measurement of the ratios of branching fractions $\mathcal{R}(D^{*})$ and $\mathcal{R}(D^{0})$ / LHCb Collaboration
The ratios of branching fractions $\mathcal{R}(D^{*})\equiv\mathcal{B}(\bar{B}\to D^{*}\tau^{-}\bar{\nu}_{\tau})/\mathcal{B}(\bar{B}\to D^{*}\mu^{-}\bar{\nu}_{\mu})$ and $\mathcal{R}(D^{0})\equiv\mathcal{B}(B^{-}\to D^{0}\tau^{-}\bar{\nu}_{\tau})/\mathcal{B}(B^{-}\to D^{0}\mu^{-}\bar{\nu}_{\mu})$ are measured, assuming isospin symmetry, using a sample of proton-proton collision data corresponding to 3.0 fb${ }^{-1}$ of integrated luminosity recorded by the LHCb experiment during 2011 and 2012. The tau lepton is identified in the decay mode $\tau^{-}\to\mu^{-}\nu_{\tau}\bar{\nu}_{\mu}$. [...]
arXiv:2302.02886; LHCb-PAPER-2022-039; CERN-EP-2022-284.- Geneva : CERN, 2023-09-13 - 13 p. - Published in : Phys. Rev. Lett. 131 (2023) 111802 Fulltext: LHCb-PAPER-2022-039 - PDF; Publication - PDF; 2302.02886 - PDF; Related data file(s): ZIP; Supplementary information: ZIP;

Registre complet - Registres semblants

A study of $C\!P$ violation in the decays $B^\pm\to[K^+K^-\pi^+\pi^-]_D h^{\pm}$ ($h = K, \pi$) and $B^\pm\to[\pi^+\pi^-\pi^+\pi^-]_D h^{\pm}$ / LHCb Collaboration
The first study of $C\!P$ violation in the decay mode $B^\pm\to[K^+K^-\pi^+\pi^-]_D h^{\pm}$, with $h=K,\pi$, is presented, exploiting a data sample of proton-proton collisions collected by the LHCb experiment that corresponds to an integrated luminosity of $9$ fb$^{-1}$. The analysis is performed in bins of phase space, which are optimised for sensitivity to local $C\!P$ asymmetries. [...]
arXiv:2301.10328; LHCb-PAPER-2022-037; CERN-EP-2022-285.- Geneva : CERN, 2023-06-29 - 28 p. - Published in : Eur. Phys. J. C
Fulltext: 2301.10328 - PDF; Publication - PDF; Related data file(s): ZIP; Supplementary information: ZIP;

Registre complet - Registres semblants

First observation and branching fraction measurement of the $\Lambda_b^0\to D_s^- p$ decayFirst observation and branching fraction measurement of the $ {\Lambda}_b^0\to {D}_s^{-}p $ decay / LHCb Collaboration
The first observation of the $\Lambda_b^0\to D_s^- p$ decay is presented using proton-proton collision data collected by the LHCb experiment at a centre-of-mass energy of ${\sqrt{s}=13 \,\textrm{TeV}}$, corresponding to a total integrated luminosity of $6\,\textrm{fb}^{-1}$. Using the $\Lambda_b^0\to\Lambda_c^+\pi^-$ decay as the normalisation mode, the branching fraction of the $\Lambda_b^0\to D_s^- p$ decay is measured to be ${\mathcal{B}(\Lambda_b^0\to D_s^- p)=(12.6 \pm 0.5 \pm 0.3 \pm 1.2 )\times 10^{-6}}$, where the first uncertainty is statistical, the second systematic and the third due to uncertainties in the branching fractions of the $\Lambda_b^0\to\Lambda_c^+\pi^-$, $D_s^- \to K^-K^+\pi^-$ and $\Lambda_c^+\to p K^- \pi^+$ decays..
arXiv:2212.12574; LHCb-PAPER-2022-038; CERN-EP-2022-272; LHCB-PAPER-2022-038.- Geneva : CERN, 2023-07-10 - 18 p. - Published in : JHEP 2307 (2023) 075 Fulltext: 2212.12574 - PDF; document - PDF; Paper_Lb2Dsp_v3.0 - PDF; Related data file(s): ZIP;

Registre complet - Registres semblants

Measurement of $\Upsilon$ production in $pp$ collisions at $\sqrt{s}=5 \ \rm{TeV}$ / LHCb Collaboration
The production cross-sections of $\Upsilon$ mesons, namely $\Upsilon(1S)$, $\Upsilon(2S)$ and $\Upsilon(3S)$, in $pp$ collisions at $\sqrt{s}=5 \ \rm{TeV}$ are measured with a data sample corresponding to an integrated luminosity of $9.13\pm{0.18} \ \rm{pb}^{-1}$ collected by the LHCb detector. The $\Upsilon$ mesons are reconstructed in the decay mode $\Upsilon \to {\mu}^+ {\mu}^-$. [...]
arXiv:2212.12664; LHCb-PAPER-2022-036; CERN-EP-2022-269.- 2023-07-07 - 21 p. - Published in : JHEP 2307 (2023) 069 Figures: ZIP; Fulltext: document - PDF; 2212.12664 - PDF;

Registre complet - Registres semblants

Search for the rare decays $W^{+}\rightarrow{D^{+}_{s}\gamma}$ and $Z\rightarrow{D^{0}\gamma}$ at LHCb / LHCb Collaboration
A search for the rare decays $W^{+}\rightarrow{D^{+}_{s}\gamma}$ and $Z\rightarrow{D^{0}\gamma}$ is performed using proton-proton collision data collected by the LHCb experiment at a centre-of-mass energy of 13 TeV, corresponding to an integrated luminosity of 2.0 $\textrm{fb}^{-1}$. No significant signal is observed for either decay mode and upper limits on their branching fractions are set using $W^{+}\rightarrow{\mu^{+}\nu}$ and $Z\rightarrow{\mu^{+}\mu^{-}}$ decays as normalization channels. [...]
arXiv:2212.07120; CERN-EP-2022-252; LHCb-PAPER-2022-033; LHCB-PAPER-2022-033.- Geneva : CERN, 2023 - 15 p. - Published in : Chin. Phys. C 47 (2023) 093002 Fulltext: 2212.07120 - PDF; LHCb-PAPER-2022-033 - PDF; document - PDF; Related data file(s): ZIP;

Registre complet - Registres semblants

Open charm production and asymmetry in $p$Ne collisions at $\sqrt{s_{\scriptscriptstyle\rm NN}} =$ 68.5 GeV / LHCb Collaboration
A measurement of $D^0$ meson production by the LHCb experiment in its fixed-target configuration is presented. The production of $D^0$ mesons is studied with a beam of 2.5 TeV protons colliding on a gaseous neon target at rest, corresponding to a nucleon-nucleon centre-of-mass energy of $\sqrt{s_{\rm NN}}$ = 68.5 GeV [...]
arXiv:2211.11633; CERN-EP-2022-217; LHCb-PAPER-2022-015; LHCB-PAPER-2022-015.- Geneva : CERN, 2023-06-27 - 11 p. - Published in : Eur. Phys. J. C
Fulltext: document - PDF; 2211.11633 - PDF; Related data file(s): ZIP;

Registre complet - Registres semblants

First observation of the $B^+ \rightarrow D_s^+ D_s^- K^+$ decay / LHCb Collaboration
The $B^+ \rightarrow D_s^+ D_s^- K^+$ decay is observed for the first time using proton-proton collision data collected by the LHCb detector at centre-of-mass energies of $7$, $8$ and $13\, \text{TeV}$, corresponding to an integrated luminosity of $9\,\text{fb}^{-1}$. Its branching fraction relative to that of the $B^{+} \rightarrow D^{+} D^{-} K^{+}$ decay is measured to be $$\frac{\mathcal{B}\left(B^{+} \rightarrow D_s^{+} D_s^{-} K^{+}\right)}{\mathcal{B}\left(B^{+} \rightarrow D^{+} D^{-} K^{+}\right)}=0.525 \pm 0.033 \pm 0.027 \pm 0.034,$$ where the first uncertainty is statistical, the second systematic, and the third is due to the uncertainties on the branching fractions of the $D_s^{\pm} \rightarrow K^{\mp} K^{\pm} \pi^{\pm}$ and $D^{\pm} \rightarrow K^{\mp} \pi^{\pm} \pi^{\pm}$ decays. [...]
arXiv:2211.05034; LHCb-PAPER-2022-019; CERN-EP-2022-205.- Geneva : CERN, 2023-08-01 - 14 p. - Published in : Phys. Rev. Lett. 108 (2023) 034012 Fulltext: 2211.05034 - PDF; Publication - PDF; Related data file(s): ZIP;

Registre complet - Registres semblants

Study of the $B^{-} \to \Lambda_{c}^{+} \bar{\Lambda}_{c}^{-} K^{-}$ decay / LHCb Collaboration
The decay $B^{-} \to \Lambda_{c}^{+} \bar{\Lambda}_{c}^{-} K^{-}$ is studied in proton-proton collisions at a center-of-mass energy of $\sqrt{s}=13$ TeV using data corresponding to an integrated luminosity of 5 $\mathrm{fb}^{-1}$ collected by the LHCb experiment. In the $\Lambda_{c}^+ K^{-}$ system, the $\Xi_{c}(2930)^{0}$ state observed at the BaBar and Belle experiments is resolved into two narrower states, $\Xi_{c}(2923)^{0}$ and $\Xi_{c}(2939)^{0}$, whose masses and widths are measured to be $$ m(\Xi_{c}(2923)^{0}) = 2924.5 \pm 0.4 \pm 1.1 \,\mathrm{MeV}, \\ m(\Xi_{c}(2939)^{0}) = 2938.5 \pm 0.9 \pm 2.3 \,\mathrm{MeV}, \\ \Gamma(\Xi_{c}(2923)^{0}) = \phantom{000}4.8 \pm 0.9 \pm 1.5 \,\mathrm{MeV},\\ \Gamma(\Xi_{c}(2939)^{0}) = \phantom{00}11.0 \pm 1.9 \pm 7.5 \,\mathrm{MeV}, $$ where the first uncertainties are statistical and the second systematic. [...]
arXiv:2211.00812; CERN-EP-2022-196; LHCb-PAPER-2022-028.- Geneva : CERN, 2023-07-27 - 15 p. - Published in : Phys. Rev. D 108 (2023) 012020 Fulltext: Publication - PDF; LHCb_PAPER_2022_028 - PDF; 2211.00812 - PDF; Related data file(s): ZIP;

Registre complet - Registres semblants

Observation of the $B_s^{0} \rightarrow D^{*+}D^{*-}$ decay / LHCb Collaboration
The first observation of the $B_s^0 \to D^{\ast +} D^{\ast -}$ decay and the measurement of its branching ratio relative to the $B_d^0 \to D^{\ast +} D^{\ast -}$ decay are presented. The data sample used corresponds to an integrated luminosity of 9 $\text{fb}^{-1}$ of proton-proton collisions recorded by the LHCb experiment at centre-of-mass energies of 7, 8 and 13 TeV between 2011 and 2018. [...]
arXiv:2210.14945; LHCb-PAPER-2022-023; CERN-EP-2022-193; LHCB-PAPER-2022-023.- Geneva : CERN, 2023-07-13 - 12 p. - Published in : JHEP 2307 (2023) 119 Fulltext: LHCB-PAPER-2022-023 - PDF; document - PDF; 2210.14945 - PDF; Related data file(s): ZIP; Supplementary information: ZIP;

Registre complet - Registres semblants

10.

Observation of a resonant structure near the $D_s^+ D_s^-$ threshold in the $B^+\to D_s^+ D_s^- K^+$ decay / LHCb Collaboration
An amplitude analysis of the $B^+\to D_s^+ D_s^- K^+$ decay is carried out to study for the first time its intermediate resonant contributions, using proton-proton collision data collected with the LHCb detector at centre-of-mass energies of 7, 8 and 13 TeV. A near-threshold peaking structure, referred to as $X(3960)$, is observed in the $D_s^+ D_s^-$ invariant-mass spectrum with significance greater than 12 standard deviations. [...]
arXiv:2210.15153; CERN-EP-2022-200; LHCb-PAPER-2022-018.- Geneva : CERN, 2023-08-14 - 12 p. - Published in : Phys. Rev. Lett. 131 (2023) 071901 Fulltext: LHCb-PAPER-2022-018 - PDF; 2210.15153 - PDF; Publication - PDF; Related data file(s): ZIP;

Registre complet - Registres semblants

Vegeu també: autors amb noms similars
5	Coelho, J
29	Coelho, J A B
11	Coelho, J G
1	Coelho, J M
3	Coelho, J.
15	Coelho, J.A. B.
46	Coelho, J.A.B.
6	Coelho, Jaziel G
12	Coelho, Joao
211	Coelho, Joao A B
1	Coelho, João Paulo
3	Coelho, Juliana

Us interessa rebre alertes sobre nous resultats d'aquesta cerca?
Definiu una alerta personal via correu electrònic o subscribiu-vos al canal RSS.

No heu trobat el que estaveu cercant? Proveu la vostra cerca a:
Coelho, Joao A.B. dins Amazon Coelho, Joao A.B. dins CERN EDMS Coelho, Joao A.B. dins CERN Intranet Coelho, Joao A.B. dins CiteSeer Coelho, Joao A.B. dins Google Books Coelho, Joao A.B. dins Google Scholar Coelho, Joao A.B. dins Google Web Coelho, Joao A.B. dins IEC	Coelho, Joao A.B. dins IHS Coelho, Joao A.B. dins INSPIRE Coelho, Joao A.B. dins ISO Coelho, Joao A.B. dins KISS Books/Journals Coelho, Joao A.B. dins KISS Preprints Coelho, Joao A.B. dins NEBIS Coelho, Joao A.B. dins SLAC Library Catalog Coelho, Joao A.B. dins Scirus

CERN Document Server

Access articles, reports and multimedia content in HEP

Main menu

CERN Accelerating science