CERN Accelerating science

CERN Document Server 17 records found  1 - 10próximo  jump to record: Search took 0.69 seconds. 
1.
Measurement of the inclusive semileptonic $B$ meson branching fraction in 62.8 fb$^{-1}$ of Belle II data / Belle-II Collaboration
We report a measurement of the branching fraction of inclusive semileptonic $B$ meson decays $B\to X_c\ell\nu\ell$ in $\Upsilon(4S)\to B\bar B$~data recorded by the Belle II experiment at the SuperKEKB asymmetric-energy $e^+e^-$ collider and corresponding to 62.8 fb$^{-1}$ of integrated luminosity. [...]
arXiv:2111.09405 ; BELLE2-CONF-PH-2021-012.
- 17.
Fulltext
2.
Exclusive $B \to X_u \ell \nu_\ell$ Decays with Hadronic Full-event-interpretation Tagging in 62.8 fb$^{-1}$ of Belle II Data / Belle-II Collaboration
We present a reconstruction in early data of the semileptonic decay $B^+ \to \pi^0 \ell^+ \nu_\ell$, and first results of a reconstruction of the decays $B^+ \to \rho^0 \ell^+ \nu_\ell$ and $B^0 \to \rho^- \ell^+ \nu_\ell$ in a sample corresponding to 62.8 fb$^{-1}$ of Belle II data using hadronic $B$-tagging via the full-event-interpretation algorithm. [...]
arXiv:2111.00710 ; BELLE2-CONF-PH-2021-013.
- 24.
Fulltext
3.
High Energy Physics Opportunities Using Reactor Antineutrinos / CHANDLER Collaboration
Nuclear reactors are uniquely powerful, abundant, and flavor-pure sources of antineutrinos that continue to play a vital role in the US neutrino physics program. The US reactor antineutrino physics community is a diverse interest group encompassing many detection technologies and many particle physics topics, including Standard Model and short-baseline oscillations, BSM physics searches, and reactor flux and spectrum modeling. [...]
arXiv:2203.07214; FERMILAB-CONF-22-853-PPD-SCD.- 2024-06-26 - 50 p. - Published in : 10.1088/1361-6471/ad3a84 Fulltext: c8e12e623ffdea56add50e6e3de8fdab - PDF; 2203.07214 - PDF; External links: Fermilab Library Server; eConf
In : 2021 Snowmass Summer Study, Seattle, WA, United States, 11 - 20 July 2021, pp.
4.
Measurements of branching fractions and CP-violating charge asymmetries in multibody charmless $B$ decays reconstructed in 2019-2020 Belle II data / Belle-II Collaboration
We report on measurements of branching fractions ($\mathcal{B}$) and CP-violating charge asymmetries ($\mathcal{A}_{\rm CP}$) of multibody charmless $B$ decays reconstructed by the Belle II experiment at the SuperKEKB electron-positron collider. [...]
arXiv:2109.10807 ; BELLE2-CONF-PH-2021-002.
- 28.
Fulltext
5.
Study of $\chi_{bJ}(nP) \rightarrow \omega \Upsilon(1S)$ at Belle / Belle Collaboration
We report results from a study of hadronic transitions of the $\chi_{bJ}(nP)$ states of bottomonium at Belle. [...]
arXiv:2108.03497 ; BELLE-CONF-2102.
- 12.
Fulltext
6.
Search for a light Higgs boson in single-photon decays of $\Upsilon(1S)$ using $\Upsilon(2S) \to \pi^+ \pi^- \Upsilon(1S)$ tagging method / Belle Collaboration
We search for a light Higgs boson ($A^0$) decaying into a $\tau^+\tau^-$ or $\mu^+\mu^-$ pair in the radiative decays of $\Upsilon(1S)$. The production of $\Upsilon(1S)$ mesons is tagged by $\Upsilon(2S)\to \pi^+ \pi^- \Upsilon(1S)$ transitions, using 158 million $\Upsilon(2S)$ events accumulated with the Belle detector at the KEKB asymmetric energy electron-positron collider. [...]
arXiv:2112.11852; Belle Preprint 2021-30; KEK Preprint 2021-35.- 2022-02-23 - 9 p. - Published in : Phys. Rev. Lett. 128 (2022) 081804 Fulltext: PDF;
7.
Directionally Accelerated Detection of an Unknown Second Reactor with Antineutrinos for Mid-Field Nonproliferation Monitoring / AIT-WATCHMAN Collaboration
When monitoring a reactor site for nuclear nonproliferation purposes, the presence of an unknown or hidden nuclear reactor could be obscured by the activities of a known reactor of much greater power nearby. [...]
arXiv:1909.05374 ; LA-UR-19-28595.
- 2019. - 9 p.
Fulltext
8.
Kaon Identification using the Tracking System of the CMD-3 Detector / Akhmetshin, R R (BINP, Novosibirsk) ; Amirkhanov, A N (BINP, Novosibirsk) ; Anisenkov, A V (BINP, Novosibirsk) ; Aulchenko, V M (BINP, Novosibirsk) ; Banzarov, V Sh (BINP, Novosibirsk) ; Bashtovoy, N S (BINP, Novosibirsk) ; Bondar, A E (BINP, Novosibirsk) ; Bragin, A V (BINP, Novosibirsk) ; Eidelman, S I (BINP, Novosibirsk) ; Epifanov, D A (BINP, Novosibirsk) et al.
This paper describes the K/ϖ separation technique based on ionisation losses in the drift chamber of the CMD-3 detector. First the procedure of the ionisationloss calibration is described. [...]
2017 - 7 p. - Published in : 10.23727/CERN-Proceedings-2017-001.159 Published version from CERN: PDF;
In : CERN-BINP Workshop for Young Scientists in $e^{+}e^{-}$ Colliders, CERN, Geneva, Switzerland, 22 - 25 Aug 2016, pp.159-164
9.
Current Status of Luminosity Measurement with the CMD-3 Detector at the VEPP-2000 e + e − Collider / Ryzhenenkov, A E (BINP, Novosibirsk) ; Akhmetshin, R R (BINP, Novosibirsk) ; Amirkhanov, A N (BINP, Novosibirsk) ; Anisenkov, A V (BINP, Novosibirsk) ; Aulchenko, V M (BINP, Novosibirsk) ; Banzarov, V Sh (BINP, Novosibirsk) ; Bashtovoy, N S (BINP, Novosibirsk) ; Bondar, A E (BINP, Novosibirsk) ; Bragin, A V (BINP, Novosibirsk) ; Eidelman, S I (BINP, Novosibirsk) et al.
The CMD-3 detector has taken data at the electron-positron collider VEPP-2000 since december 2010. The collected data sample corresponds to an integrated luminosity of 60 pb-6 in the c.m. [...]
2017 - 7 p. - Published in : 10.23727/CERN-Proceedings-2017-001.97 Published version from CERN: PDF;
In : CERN-BINP Workshop for Young Scientists in $e^{+}e^{-}$ Colliders, CERN, Geneva, Switzerland, 22 - 25 Aug 2016, pp.97-102
10.
The Study of the Conversion Decays of Omega Meson to π0 Meson and e+ e− Pair with the CMD-3 Detector / Akhmetshin, R R (BINP, Novosibirsk) ; Amirkhanov, A N (BINP, Novosibirsk) ; Anisenkov, A V (BINP, Novosibirsk) ; Aulchenko, V M (BINP, Novosibirsk) ; Banzarov, V S (BINP, Novosibirsk) ; Bashtovoy, N S (BINP, Novosibirsk) ; Bondar, A E (BINP, Novosibirsk) ; Bragin, A V (BINP, Novosibirsk) ; Eidelman, S I (BINP, Novosibirsk) ; Epifanov, D A (BINP, Novosibirsk) et al.
The conversion decay ω → π0 e+ e− was studied in the center-of-mass energy range 760 – 840 MeV using about 8 pb −1 of data collected with the CMD-3  detector at the VEPP-2000 e + e − collider in Novosibirsk. The visible cross section of the process ω → π0 e+ e− was measured. [...]
2017 - 7 p. - Published in : 10.23727/CERN-Proceedings-2017-001.91 Published version from CERN: PDF;
In : CERN-BINP Workshop for Young Scientists in $e^{+}e^{-}$ Colliders, CERN, Geneva, Switzerland, 22 - 25 Aug 2016, pp.91-96

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