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2023-12-09
09:48
ATLAS Results on ${B_{c}^{+}}$ Production and Decays / Lyubushkina, T (Dubna, JINR) /ATLAS Collaboration
Recent results from the proton–proton collision data taken by the ATLAS experiment on the $B_{c}^{+}$ meson production and decays are presented. New results on the $B_{c}^{+}$ meson decays to $J/\psi D_{s}$ or $J/\psi D_{s}^{*}$ final states are included. [...]
2023 - 4 p. - Published in : Phys. At. Nucl. 86 (2023) 747-750 Fulltext: PDF;

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2023-12-07
06:43
A new Scattering and Neutrino Detector at the LHC (SND@LHC) / Centanni, Daniele (INFN, Naples ; Naples, Inst. U. Navale) /SND@LHC Collaboration
The Scattering and Neutrino Detector (SND@LHC) is a compact and stand-alone experiment to perform measurements with neutrinos produced at the LHC in a hitherto unexplored pseudo-rapidity region of $7.2\, <\, \eta \,<\, 8.4$, complementary to all the other experiments at the LHC. The experiment is located 480 m downstream of IP1 in the unused TI18 tunnel. [...]
2023 - 9 p. - Published in : PoS: FPCP2023, pp. 072
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In : 21st Conference on Flavor Physics and CP Violation (FPCP 2023), Villeurbanne, France, 29 May - 2 Jun 2023, pp.072

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2023-12-07
06:43
New results for searches of exotic decays with NA62 in beam-dump mode / Jerhot, Jan (Louvain U., CP3) /NA62 Collaboration
We report on the search for visible decays of exotic mediators from data taken in "beam-dump" mode with the NA62 experiment. The NA62 experiment can be run as a "beam-dump experiment" by removing the kaon production target and dumping the proton beam in closed collimators. [...]
2023 - 12 p. - Published in : PoS: FPCP2023, pp. 073
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In : 21st Conference on Flavor Physics and CP Violation (FPCP 2023), Villeurbanne, France, 29 May - 2 Jun 2023, pp.073

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2023-12-07
06:43
Lepton flavour universality tests using $B^0 → D^{∗−}$ $𝝉^+$$𝝂_𝝉$ with muonic and hadronic 𝝉 decays / Wormser, Guy Henri Maurice (IJCLab, Orsay ; U. Paris-Saclay) /LHCb Collaboration
Three complementary tests of Lepton Flavour Universality (LFU) using semitauonic $B$ decays performed by the LHCb collaboration are reported. The two latter measurements are the most precise single measurements to date.They are compatible with SM prediction and with previous measurements. [...]
2023 - 27 p. - Published in : PoS: FPCP2023, pp. 052
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In : 21st Conference on Flavor Physics and CP Violation (FPCP 2023), Villeurbanne, France, 29 May - 2 Jun 2023, pp.052

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2023-12-06
06:02
Silicon vertex detector with timing for the Upgrade II of LHCb / Rodríguez Rodríguez, Efrén (Santiago de Compostela U., IGFAE) /LHCb Collaboration
LHCb has recently submitted a physics case for an Upgrade II detector to begin operation in 2031. The upcoming upgrade is designed to run at instantaneous luminosities of 1.5×1034cm−2s−1, to accumulate a data sample with a corresponding integrated luminosity of over 300fb−1. [...]
2022 - 4 p.

In : 15th Pisa Meeting on Advanced Detectors, La Biodola - Isola D'elba, Italy, 22 - 28 May 2022, pp.167965

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2023-12-06
06:02
The TORCH time-of-flight detector / Harnew, N (Oxford U.) ; Gao, R (Oxford U.) ; Hadavizadeh, T (Oxford U.) ; Hancock, T H (Oxford U.) ; Smallwood, J C (Oxford U.) ; Brook, N H (Bath U.) ; Bhasin, S (Bristol U.) ; Cussans, D (Bristol U.) ; Rademacker, J (Bristol U.) ; Forty, R (CERN) et al.
TORCH is a large-area time-of-flight (ToF) detector, proposed for the Upgrade-II of the LHCb experiment. It will provide charged hadron identification over a 2–20 GeV/c momentum range, given a 9.5m flight distance from the LHC interaction point. [...]
2022 - 3 p.

In : 15th Pisa Meeting on Advanced Detectors, La Biodola - Isola D'elba, Italy, 22 - 28 May 2022, pp.167991

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2023-12-06
06:02
Performance of improved RPCs demonstrator for the CMS at the HL-LHC / Asilar, Ece (Hanyang U.) /CMS Muon Collaboration
With the increase of the LHC luminosity foreseen in the coming years, components of detectors currently used in the LHC need to be replaced or new ones should be added. The new ones should be capable not only to support the high particle rate, but also to provide time information to reduce the data ambiguity due to the expected high pileup. [...]
2022

In : 15th Pisa Meeting on Advanced Detectors, La Biodola - Isola D'elba, Italy, 22 - 28 May 2022, pp.167953

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2023-12-06
06:02
$B^0_s \to J/\psi \phi$ in ATLAS / Thaler, Alexander (Innsbruck U.) /ATLAS Collaboration
A measurement of the $B^0_s \to J/\psi \phi$ decay parameters using $80.5\,\mathrm{fb}^{-1}$ of integrated luminosity collected with the ATLAS detector from $13\,\mathrm{TeV}$ proton-proton collisions at the LHC is presented. The measured parameters include the CP-violating phase $\phi_s$, the width difference $\Delta\Gamma_s$ between the $B^0_s$ mass eigenstates and the average decay width $\Gamma_s$..
2023 - 7 p. - Published in : PoS: FPCP2023, pp. 076
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In : 21st Conference on Flavor Physics and CP Violation (FPCP 2023), Villeurbanne, France, 29 May - 2 Jun 2023, pp.076

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2023-12-06
06:02
Experimental status of $b \to s \{\gamma, e^+e^-, \mu^+\mu^-\}$ at the LHC / Henderson, Riley (Monash U.) /ATLAS Collaboration ; CMS Collaboration ; LHCb Collaboration
An overview of the status of measurements at the LHC on beauty hadron decays involving the $b \to s \{\gamma, e^+e^-, \mu^+\mu^-\}$ transitions is presented. Such decays are rare in the Standard Model and therefore particularly sensitive to potential New Physics contributions. [...]
2023 - 18 p. - Published in : PoS: FPCP2023, pp. 007
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In : 21st Conference on Flavor Physics and CP Violation (FPCP 2023), Villeurbanne, France, 29 May - 2 Jun 2023, pp.007

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2023-12-06
06:02
Studies on RPC detectors operated with environmentally friendly gas mixtures in LHC-like conditions / Rigoletti, Gianluca (CERN) ; Guida, Roberto (CERN) ; Mandelli, Beatrice (CERN)
Resistive Plate Chambers (RPC) are largely employed at CERN LHC experiments thanks to their excellent trigger and timing performances. High Pressure Laminates (HPL) RPCs are operated with a gas mixture made of about 95% of C2H2F4, 5% of i-C4H10 and 0.3% of SF6. [...]
2022

In : 15th Pisa Meeting on Advanced Detectors, La Biodola - Isola D'elba, Italy, 22 - 28 May 2022, pp.167961

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