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CERN Document Server Encontrados 28 registros  1 - 10siguientefinal  ir al registro: La búsqueda tardó 1.23 segundos. 
1.
The $\pi^+\pi^-$ Coulomb interaction study and its use in the data processing / Adeva, B. (Santiago de Compostela U.) ; Afanasyev, L. (Dubna, JINR) ; Anania, A. (INFN, Messina) ; Aogaki, S. (Bucharest, IFIN-HH) ; Benelli, A. (Prague, Tech. U.) ; Brekhovskikh, V. (Serpukhov, IHEP) ; Cechak, T. (Prague, Tech. U.) ; Chiba, M. (Tokyo Metropolitan U.) ; Chliapnikov, P. (Serpukhov, IHEP) ; Drijard, D. (Prague, Tech. U. ; CERN) et al.
In this work the Coulomb effects (Coulomb correlations) were studied using experimental $\pi^+\pi^-$ pair distributions in $Q$, the relative momentum in the pair center of mass system (c.m.s), and its projections $Q_L$ (longitudinal component) and $Q_t$ (transverse component) relative to the pair direction in the laboratory system (l.s.). The major part of the pion pairs is produced by decay of $\rho, \omega$ and $\Delta$ and other short-lived sources (Coulomb pairs). [...]
arXiv:2409.12696; CERN-EP-2023-276.- Geneva : CERN, 2024-11-01 - 11 p. - Published in : Phys. Rev. D 110 (2024) 092005 Draft (restricted): PDF; Fulltext: DIRAC-Coulomb-correct - PDF; 2409.12696 - PDF;
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2.
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.
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3.
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.
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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.
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5.
Investigation of $K^+K^-$ pairs in the effective mass region near $2m_K$ / DIRAC Collaboration
The DIRAC experiment at CERN investigated in the reaction $\rm{p}(24~\rm{GeV}/c) + Ni$ the particle pairs $K^+K^-, \pi^+ \pi^-$ and $p \bar{p}$ with relative momentum $Q$ in the pair system less than 100 MeV/c. Because of background influence studies, DIRAC explored three subsamples of $K^+K^-$ pairs, obtained by subtracting -- using time-of-flight (TOF) technique -- background from initial $Q$ distributions with $K^+K^-$ sample fractions more than 70%, 50% and 30%. [...]
arXiv:2204.01857; CERN-EP-2022-058.- 2022-08-01 - 18 p. - Published in : Phys. Rev. D 106 (2022) 032006 Fulltext: PhysRevD.106.032006 - PDF; 2204.01857 - PDF;
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6.
EUDAQ $-$ A Data Acquisition Software Framework for Common Beam Telescopes / Ahlburg, P. (Bonn U.) ; Arfaoui, S. (CERN) ; Arling, J.-H (DESY) ; Augustin, H. (Heidelberg U.) ; Barney, D. (CERN) ; Benoit, M. (Geneva U.) ; Bisanz, T. (Gottingen U., II. Phys. Inst.) ; Corrin, E. (Geneva U.) ; Cussans, D. (Bristol U.) ; Dannheim, D. (CERN) et al.
EUDAQ is a generic data acquisition software developed for use in conjunction with common beam telescopes at charged particle beam lines. Providing high-precision reference tracks for performance studies of new sensors, beam telescopes are essential for the research and development towards future detectors for high-energy physics. [...]
arXiv:1909.13725.- 2020-01-30 - 30 p. - Published in : JINST 15 (2020) P01038 Fulltext: fulltext1756754 - PDF; 1909.13725 - PDF;
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7.
The Belle II Physics Book / Belle-II Collaboration
We present the physics program of the Belle II experiment, located on the intensity frontier SuperKEKB e+e- collider. Belle II collected its first collisions in 2018, and is expected to operate for the next decade. [...]
arXiv:1808.10567; KEK Preprint 2018-27; BELLE2-PUB-PH-2018-001; FERMILAB-PUB-18-398-T; JLAB-THY-18-2780; INT-PUB-18-047; UWThPh 2018-26.- 2019-12-23 - 654 p. - Published in : PTEP: 2019 (2019) , no. 12, pp. 123C01
- Published in : PTEP: 2020 (2020) , no. 2, pp. 029201 Article from SCOAP3: PDF; Fulltext: 1808.10567 - PDF; fermilab-pub-18-398-t - PDF; Erratum - PDF; Fulltext from publisher: PDF; External link: Fermilab Library Server (fulltext available)
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8.
First measurement of a long-lived $\pi^+ \pi^-$ atom lifetime / DIRAC Collaboration
The adapted DIRAC experiment at the CERN PS accelerator observed for the first time long-lived hydrogen-like $\pi^+\pi^-$ atoms, produced by protons hitting a beryllium target. A part of these atoms crossed the gap of 96~mm and got broken up in the 2.1~\textmu{}m thick platinum foil. [...]
arXiv:1811.08659; CERN-EP-2018-281; DIRAC-PUB-2019-01.- Geneva : CERN, 2019-03-01 - 7 p. - Published in : Phys. Rev. Lett. 122 (2019) 082003 Article from SCOAP3: PDF; Draft (restricted): PDF; Fulltext: 1811.08659 - PDF; CERN-EP-2018-281 - PDF;
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9.
First Measurements of Beam Backgrounds at SuperKEKB / Vahsen, S.E. (University of Hawaii) ; Lewis, P.M. (University of Hawaii) ; Jaegle, I. (University of Florida) ; Nakayama, H. (KEK) ; Aloisio, A. (University of Naples Federico II & INFN Napoli) ; Ameli, F. (INFN Roma) ; Barrett, M. (Wayne State University) ; Beaulieu, A. (University of Victoria) ; Bosisio, L. (University of Trieste & INFN) ; Branchini, P. (INFN Roma) et al.
The high design luminosity of the SuperKEKB electron-positron collider is expected to result in challenging levels of beam-induced backgrounds in the interaction region. Properly simulating and mitigating these backgrounds is critical to the success of the Belle~II experiment. [...]
AIDA-2020-PUB-2018-005.- Geneva : CERN, 2018 - Published in : Nucl. Instrum. Methods Phys. Res., Sect. A Fulltext: PDF;
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10.
Measurement of the $\pi K$ atom lifetime and the $\pi K$ scattering length / DIRAC Collaboration
After having announced the statistically significant observation (5.6~$\sigma$) of the new exotic $\pi K$ atom, the DIRAC experiment at the CERN proton synchrotron presents the measurement of the corresponding atom lifetime, based on the full $\pi K$ data sample: $\tau = (5.5^{+5.0}_{-2.8}) \cdot 10^{-15}s$. By means of a precise relation ($<1\%$) between atom lifetime and scattering length, the following value for the S-wave isospin-odd $\pi K$ scattering length $a_0^{-}~=~\frac{1}{3}(a_{1/2}-a_{3/2})$ has been derived: $\left|a_0^-\right| = (0.072^{+0.031}_{-0.020}) M_{\pi}^{-1}$..
arXiv:1707.02184; CERN-EP-2017-137; DIRAC-PUB-2017-01.- Geneva : CERN, 2017-09-19 - 18 p. - Published in : Phys. Rev. D 96 (2017) 052002 Draft (restricted): PDF; Fulltext: CERN-EP-2017-137 - PDF; arXiv:1707.02184 - PDF; Fulltext from publisher: PDF;
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CERN Document Server : Encontrados 28 registros   1 - 10siguientefinal  ir al registro:
Vea también: autores con nombres similares
13 Marinas, C
17 Marinas, C.
3 Marinas, Carlos
17 Mariñas, C.
3 Mariñas, Carlos
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