CERN Accelerating science

CERN Document Server 16 записей найдено  1 - 10следующий  перейти к записи: Поиск длился 0.67 секунд. 
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.
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
4.
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
5.
Positron accumulation in the GBAR experiment / GBAR Collaboration
We present a description of the GBAR positron (e+) trapping apparatus, which consists of a three stage Buffer Gas Trap (BGT) followed by a High Field Penning Trap (HFT), and discuss its performance. The overall goal of the GBAR experiment is to measure the acceleration of the neutral antihydrogen (H) atom in the terrestrial gravitational field by neutralising a positive antihydrogen ion (H+), which has been cooled to a low temperature, and observing the subsequent H annihilation following free fall. [...]
arXiv:2205.04530.- 2022-07-25 - 28 p. - Published in : Nucl. Instrum. Methods Phys. Res., A 1040 (2022) 167263 Fulltext: PDF;
6.
Measurements of partial branching fractions of inclusive B→Xuℓ+νℓ decays with hadronic tagging / Belle Collaboration
We present measurements of partial branching fractions of inclusive semileptonic $B \to X_u \, \ell^+\, \nu_{\ell}$ decays using the full Belle data set of 711 fb$^{-1}$ of integrated luminosity at the $\Upsilon(4S)$ resonance and for $\ell = e, \mu$. Inclusive semileptonic $B \to X_u \, \ell^+\, \nu_{\ell}$ decays are CKM suppressed and measurements are complicated by the large background from CKM-favored $B \to X_c \, \ell^+\, \nu_{\ell}$ transitions, which have a similar signature. [...]
arXiv:2102.00020; Belle Preprint 2020-22; KEK Preprint 2020-39.- 2021-07-01 - 34 p. - Published in : Phys. Rev. D 104 (2021) 012008 Fulltext: PDF;
7.
A pulsed high-voltage decelerator system to deliver low-energy antiprotons / Husson, A (IJCLab, Orsay) ; Kim, B H (Seoul Natl. U., Dept. Phys. Astron.) ; Welker, A (CERN) ; Charlton, M (Swansea U.) ; Choi, J J (Seoul Natl. U., Dept. Phys. Astron.) ; Chung, M (UNIST, Ulsan) ; Cladé, P (Paris, Lab. Kastler Brossel) ; Comini, P (IRFU, Saclay) ; Crépin, P -P (Paris, Lab. Kastler Brossel) ; Crivelli, P (Zurich, ETH-CSCS/SCSC) et al.
The GBAR (Gravitational Behavior of Antihydrogen at Rest) experiment at CERN requires efficient deceleration of 100 keV antiprotons provided by the new ELENA synchrotron ring to synthesize antihydrogen. This is accomplished using electrostatic deceleration optics and a drift tube that is designed to switch from -99 kV to ground when the antiproton bunch is inside – essentially a charged particle “elevator” – producing a 1 keV pulse. [...]
2021 - 7 p. - Published in : Nucl. Instrum. Methods Phys. Res., A 1002 (2021) 165245
8.
Accumulation of Positrons from a LINAC Based Source / GBAR Collaboration
The GBAR experiment aims to measure the gravitational acceleration of antihydrogen H. It will use H + ions formed by the interaction of antiprotons with a dense positronium cloud, which will require about $10^{10}$ positrons to produce one H + [...]
2020 - 3 p. - Published in : Acta Phys. Pol. A 137 (2020) 164-166
In : 15th International Workshop on Slow Positron Beam Techniques and Applications, Prague, Czechia, 2-6 Sep 2019, pp.164-166
9.
Development of a PbWO$_4$ Detector for Single-Shot Positron Annihilation Lifetime Spectroscopy at the GBAR Experiment / Kim, B H (Seoul Natl. U.) ; Choi, J J (Seoul Natl. U.) ; Chung, M (UNIST, Ulsan) ; Cladé, P (Paris, Lab. Kastler Brossel) ; Comini, P (IRFU, Saclay) ; Crivelli, P (Zurich, ETH) ; Crépin, P-P (Paris, Lab. Kastler Brossel) ; Dalkarov, O (Lebedev Inst.) ; Debu, P (IRFU, Saclay) ; Dodd, L (Swansea U.) et al.
We have developed a PbWO$_{4}$ (PWO) detector with a large dynamic range to measure the intensity of a positron beam and the absolute density of the ortho-positronium ($\mathrm{o-Ps}$) cloud it creates. A simulation study shows that a setup based on such detectors may be used to determine the angular distribution of the emission and reflection of $\mathrm{o-Ps}$ to reduce part of the uncertainties of the measurement. [...]
2020 - 4 p. - Published in : Acta Phys. Pol. A 137 (2020) 122-125
In : 15th International Workshop on Slow Positron Beam Techniques and Applications, Prague, Czechia, 2-6 Sep 2019, pp.122-125
10.
Positron production using a 9 MeV electron linac for the GBAR experiment / Charlton, M. (Swansea U.) ; Choi, J.J. (Seoul Natl. U., Dept. Phys. Astron.) ; Chung, M. (UNIST, Ulsan) ; Cladé, P. (Paris, Lab. Kastler Brossel) ; Comini, P. (IRFU, Saclay) ; Crépin, P.P. (Paris, Lab. Kastler Brossel) ; Crivelli, P. (Zurich, ETH) ; Dalkarov, O. (Lebedev Inst.) ; Debu, P. (IRFU, Saclay) ; Dodd, L. (Swansea U.) et al.
For the GBAR (Gravitational Behaviour of Antihydrogen at Rest) experiment at CERN's Antiproton Decelerator (AD) facility we have constructed a source of slow positrons, which uses a low-energy electron linear accelerator (linac). The driver linac produces electrons of 9 MeV kinetic energy that create positrons from bremsstrahlung-induced pair production. [...]
arXiv:2006.05966.- 2021-01-01 - 33 p. - Published in : Nucl. Instrum. Methods Phys. Res., A 985 (2021) 164657 Fulltext: PDF;

CERN Document Server : 16 записей найдено   1 - 10следующий  перейти к записи:
Смотрите также: похожие имена автора
102 Kim, B
22 Kim, B C
10 Kim, B G
74 Kim, B I
182 Kim, B J
35 Kim, B K
1 Kim, B L
4 Kim, B M
1 Kim, B N
41 Kim, B R
9 Kim, B S
16 Kim, B T
1 Kim, B W
34 Kim, B.
1 Kim, B.C.
12 Kim, B.H.
2 Kim, B.R.
1 Kim, Ba Ro
1 Kim, Bangyeop
2 Kim, Bara
27 Kim, Beom Jun
1 Kim, Beom-Jin
399 Kim, Beomkyu
1 Kim, Bo Young
466 Kim, Bobae
1 Kim, Bock-joo
321 Kim, Bockjoo
1 Kim, Boklye
1 Kim, Bokyoung
21 Kim, Bom Soo
1 Kim, BomSok
4 Kim, Bong Gyu
1 Kim, Bong Keung
1 Kim, Bong-Jun
1 Kim, Bongo
1 Kim, Bongsoo
2 Kim, Boseung
1 Kim, Brian S
1 Kim, Bryce M.
1 Kim, BuGil
1 Kim, Bum-Soo
1 Kim, Bumman
8 Kim, Bumsig
1 Kim, Bumsik
3 Kim, Byeong Moon
1 Kim, Byeong-Noh
1 Kim, Byeonghoon
1 Kim, Byeongnoh
1 Kim, Byeul-a
1 Kim, Byoung-Gon
2 Kim, Byoung-Hoon
1 Kim, Byounghoon
1 Kim, Byoungoh
2 Kim, Byung
1 Kim, Byung G
1 Kim, Byung Yong
1 Kim, Byung-Dong
1 Kim, Byung-Gyu
5 Kim, Byung-Hak
145 Kim, Byungchul
4 Kim, Byunghan
2 Kim, Byungmun
1 Kim, Byungsoo
Вы хотите получать уведомление о новых документах, соотетствующих этому запросу?
Установите персональное email оповещение или подпишитесь на RSS-канал.
не нашли то, что искали? Попробуйте поискать на других серверах
Kim, B H в Amazon
Kim, B H в CERN EDMS
Kim, B H в CERN Intranet
Kim, B H в CiteSeer
Kim, B H в Google Books
Kim, B H в Google Scholar
Kim, B H в Google Web
Kim, B H в IEC
Kim, B H в IHS
Kim, B H в INSPIRE
Kim, B H в ISO
Kim, B H в KISS Books/Journals
Kim, B H в KISS Preprints
Kim, B H в NEBIS
Kim, B H в SLAC Library Catalog
Kim, B H в Scirus