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1.
Observation of the open-charm tetraquark state $T_{cs 0}^{*}(2870)^0$ in the $B^- \rightarrow D^- D^0 K_\mathrm{S}^0$ decay / LHCb Collaboration
An amplitude analysis of $B^-\rightarrow D^- D^0 K_\mathrm{S}^0$ decays is performed using proton-proton collision data, corresponding to an integrated luminosity of 9 fb$^{-1}$, collected with the LHCb detector at center-of-mass energies of 7, 8, and 13$\mathrm{\,Te\kern -0.1em V}$. [...]
arXiv:2411.19781 ; LHCb-PAPER-2024-040 ; CERN-EP-2024-287 ; LHCB-PAPER-2024-040.
- 2024 - 21.
Fulltext - Related data file(s) - Supplementary information - Fulltext
2.
Characterization of Radiophotoluminescence Dosimeters Under X-Ray Irradiation at High Doses / Ferrari, M (Lab. Hubert Curien, St. Etienne) ; Aguiar, Y Q (CERN) ; Hasan, A (Lab. Hubert Curien, St. Etienne) ; Alem, A K (Lab. Hubert Curien, St. Etienne) ; Alía, R García (CERN) ; Donzella, A (Brescia U.) ; Pagano, D (Brescia U.) ; Sostero, L (Brescia U.) ; Zenoni, A (Brescia U.) ; Girard, S (Lab. Hubert Curien, St. Etienne ; IUF, Paris)
A characterization of radiophotoluminescence (RPL) dosimeters at high doses of X-ray radiation for applications in high-radiation areas is presented. Commercial FD-7 silver-doped phosphate glasses (1.5$\times$ 8.5mm) in use at CERN for passive dosimetry are irradiated using commercial X-ray tubes. [...]
2024 - 8 p. - Published in : IEEE Trans. Nucl. Sci.
Fulltext: PDF;
In : Conference on Radiation and its Effects on Components and Systems (RADECS 2023), Toulouse, France, 25 - 29 Sep 2023, pp.1821-1828
3.
First determination of the spin-parity of ${\Xi}_{c}(3055)^{+0}$ baryons / LHCb Collaboration
The ${{\Xi}_{b}^{0(-)}\to{\Xi}_{c}(3055)^{+(0)}(\to D^{+(0)}{\Lambda}){\pi}^{-}}$ decay chains are observed, and the spin-parity of ${\Xi}_{c}(3055)^{+(0)}$ baryons is determined for the first time. [...]
arXiv:2409.05440 ; LHCb-PAPER-2024-018 ; CERN-EP-2024-215 ; LHCB-PAPER-2024-018.
- 2024 - 24.
Fulltext - Related data file(s) - Supplementary information - Fulltext
4.
Observation of muonic Dalitz decays of $\chi_{b}$ mesons and precise spectroscopy of hidden-beauty states / LHCb Collaboration
The decays of the $\chi_{b1}(1P)$, $\chi_{b2}(1P)$, $\chi_{b1}(2P)$ and $\chi_{b2}(2P)$ mesons into the $\Upsilon(1S)\mu^+\mu^-$ final state are observed with a high significance using proton-proton collision data collected with the LHCb detector and corresponding to an integrated luminosity of 9fb$^{-1}$. The newly observed decays together with the $\Upsilon(2S)\rightarrow \Upsilon(1S)\pi^+\pi^-$ and $\Upsilon(3S)\rightarrow \Upsilon(2S)\pi^+\pi^-$ decay modes are used for precision measurements of the mass and mass splittings for the hidden-beauty states..
arXiv:2408.05134; LHCb-PAPER-2024-025; CERN-EP-2024-207.- Geneva : CERN, 2024-10-16 - 29 p. - Published in : JHEP 2410 (2024) 122 Fulltext: LHCb-PAPER-2024-025 - PDF; 2408.05134 - PDF; Publication - PDF; Related data file(s): ZIP;
5.
Simulations of a cryogenic, buffer-gas filled Paul trap for low-emittance ion bunches / Lechner, S (CERN ; Vienna, Tech. U. ; McGill U.) ; Sels, S (CERN) ; Belosevic, I (TRIUMF) ; Buchinger, F (McGill U.) ; Fischer, P (Greifswald U.) ; Kanitz, C (Erlangen - Nuremberg U.) ; Lagaki, V (CERN ; Greifswald U.) ; Maier, F M (CERN ; Greifswald U.) ; Plattner, P (CERN ; Innsbruck U.) ; Schweikhard, L (Greifswald U.) et al.
Many experiments with pulsed ion beams benefit from or even require ion bunches with both small temporal width as well as small energy spread. To achieve optimal ion-beam preparation, a buffer-gas filled cryogenic Paul trap is being developed in the context of the Multi Ion Reflection Apparatus for Collinear Laser Spectroscopy (MIRACLS). [...]
2024 - 13 p. - Published in : Nucl. Instrum. Methods Phys. Res., A 1065 (2024) 169471 Fulltext: PDF;
6.
Observation of New Charmonium or Charmoniumlike States in <math display="inline"><msup><mi>B</mi><mo>+</mo></msup><mo stretchy="false">→</mo><msup><mi>D</mi><mrow><mo>*</mo><mo>±</mo></mrow></msup><msup><mi>D</mi><mo>∓</mo></msup><msup><mi>K</mi><mo>+</mo></msup></math> Decays / LHCb Collaboration
A study of resonant structures in $B^{+}\rightarrow{D^{*+}D^{-}K^{+}}$ and $B^{+}\rightarrow{D^{*-}D^{+}K^{+}}$ decays is performed, using proton-proton collision data at centre-of-mass energies of $\sqrt{s}=7, 8$, and $13$TeV recorded by the LHCb experiment, corresponding to an integrated luminosity of 9 fb${}^{-1}$. A simultaneous amplitude fit is performed to the two channels with contributions from resonances decaying to $D^{*-}D^{+}$ and $D^{*+}D^{-}$ states linked by $C$-parity. [...]
arXiv:2406.03156; LHCb-PAPER-2023-047; CERN-EP-2024-096.- Geneva : CERN, 2024-09-27 - 14 p. - Published in : Phys. Rev. Lett. 133 (2024) 131902 Fulltext: LHCb-PAPER-2023-047_arxiv - PDF; 2406.03156 - PDF; Publication - PDF; Related data file(s): ZIP; Supplementary information: ZIP;
7.
The XV International Conference on Beauty, Charm, Hyperons in Hadronic Interactions (BEACH 2024) - BEACH 2024   3 - 7 Jun 2024  - Charleston, Sc, Us  / Petrov, A (ed.) (University of South Carolina)
2024
8.
Amplitude analysis and branching fraction measurement of $B^{+} \to D^{*-}D_{s}^{+}\pi^{+}$ decays / LHCb Collaboration
The decays of the $B^{+}$ meson to the final state $D^{*-}D^{+}_{s}\pi^{+}$ are studied in proton-proton collision data collected with the LHCb detector at centre-of-mass energies of 7, 8, and 13 TeV, corresponding to a total integrated luminosity of 9 fb$^{-1}$. The ratio of branching fractions of the $B^{+}\to D^{*-}D^{+}_{s}\pi^{+}$ and $B^{0}\to D^{*-}D^{+}_{s}$ decays is measured to be $0.173\pm 0.006\pm 0.010$, where the first uncertainty is statistical and the second is systematic. [...]
arXiv:2405.00098; LHCb-PAPER-2024-001; CERN-EP-2024-110.- Geneva : CERN, 2024-08-21 - 41 p. - Published in : JHEP 2408 (2024) 165 Fulltext: document - PDF; 2405.00098 - PDF; LHCb-PAPER-2024-001 - PDF; Related data file(s): ZIP;
9.
X-Ray Absorption Spectroscopy to Investigate Precipitated Oxides in Nb3Sn Wires With an Internal Oxygen Source / Bovone, G (Geneva U.) ; Buta, F (Geneva U.) ; Lonardo, F (Geneva U.) ; Bonura, M (Geneva U.) ; Borca, C N (PSI, Villigen) ; Huthwelker, T (PSI, Villigen) ; Hopkins, S C (CERN) ; Ballarino, A (CERN) ; Boutboul, T (CERN) ; Senatore, C (Geneva U.)
Internal oxidation can achieve significantly enhanced Jcin Nb3Sn wires, but the mechanism of oxygen transport and oxide precipitation is not fully understood. Our investigation employs X-ray Absorption Near-Edge Structure (XANES) spectroscopy, revealing insights into the oxidation of Zr and its interaction with oxygen in different areas of the wire cross section. [...]
2024 - 5 p. - Published in : IEEE Trans. Appl. Supercond. 34 (2024) 6000205
10.
Analysis of the Leakage Events in the Thermal Shield Cooling Pipes of the ITER Magnet System / Sgobba, Stefano (CERN) ; Santillana, Ignacio Aviles (CERN) ; Celuch, Michal (CERN) ; Crouvizier, Mickaël (CERN) ; Perez Fontenla, Ana Teresa (CERN) ; Castro, Enrique Rodriguez (CERN) ; Mitchell, Neil (Euratom, St. Paul Lez Durance) ; Koizumi, Norikiyo (Euratom, St. Paul Lez Durance) ; Pearce, Robert (Euratom, St. Paul Lez Durance) ; Worth, Liam (Euratom, St. Paul Lez Durance) et al.
The ITER Thermal Shields (TS) consist of actively cooled stainless steel panels. Their role is to minimise the radiation heat load from warm components, such as the Vacuum Vessel (VV) and the cryostat, hence contributing to insulating the magnet system operating at 4.5 K. [...]
2024 - 5 p. - Published in : IEEE Trans. Appl. Supercond. 34 (2024) 4203405

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