Publications de Carina Trippl | EPFL Graph Search

Installation and performance of the 3rd Veto plane at the SND@LHC detector

Lesya Shchutska, Olivier Schneider, Aurelio Bay, Konstantin Androsov, Jan Steggemann, Elena Graverini, Ettore Zaffaroni, Mikhail Chapochnikov, Anna Mascellani, Carina Trippl

During 2022/2023 the optimal inefficiency of the Veto system of the SND@LHC detector was measured to be (7.8 ± 2.8) × 10−8. To reduce this inefficiency, a third Veto plane was installed during the 2023-2024 Year End Technical Stop. In addition, the Veto sy ...

2025

Microlens-enhanced SiPMs

Lesya Shchutska, Olivier Schneider, Guido Haefeli, Frédéric Blanc, Ettore Zaffaroni, Radoslav Marchevski, Carina Trippl

A novel concept to enhance the photo-detection efficiency (PDE) of silicon photomultipliers (SiPMs) has been applied and remarkable positive results can be reported. This concept uses arrays of microlenses to cover every second SiPM pixel in a chequerboard ...

2025

Observation of Collider Neutrinos without Final State Muons with the SND@LHC Experiment

Lesya Shchutska, Olivier Schneider, Aurelio Bay, Konstantin Androsov, Jan Steggemann, Elena Graverini, Ettore Zaffaroni, Mikhail Chapochnikov, Zhenyu Yang, Anna Mascellani

We report the observation of neutrino interactions without final state muons at the LHC, with a significance of 6.4σ. A dataset of proton-proton collisions at s=13.6 TeV collected by SND@LHC in 2022 and 2023 is used, corresponding to an integrated luminosi ...

American Physical Society (APS)2025

Observation of Cabibbo-Suppressed Two-Body Hadronic Decays and Precision Mass Measurement of the Ω0c Baryon

Lesya Shchutska, Olivier Schneider, Guido Haefeli, Frédéric Blanc, Tatsuya Nakada, Michel De Cian, Elena Graverini, Renato Quagliani, Aravindhan Venkateswaran, Vitalii Lisovskyi

The first observation of the singly Cabibbo-suppressed 0c -> -K thorn and 0c -> -z thorn decays is reported, using proton -proton collision data at a center -of -mass energy of 13 TeV, corresponding to an integrated luminosity of 5.4 fb-1, collected with t ...

Amer Physical Soc2024

Measurement of the CKM angle γ in the B0→DK *0 channel using self-conjugate D→ KS0h+ h- decays

Lesya Shchutska, Olivier Schneider, Aurelio Bay, Guido Haefeli, Frédéric Blanc, Tatsuya Nakada, Elena Graverini, Renato Quagliani, Aravindhan Venkateswaran, Luis Miguel Garcia Martin

A model-independent study of CP violation in B-0 -> DK (*0) decays is presented using data corresponding to an integrated luminosity of 9 fb(-1) collected by the LHCb experiment at centre-of-mass energies of v s = 7, 8 and 13TeV. The CKM angle. is determin ...

Springer2024

Amplitude Analysis of the B0 - K*0 μ+μ- Decay

Lesya Shchutska, Olivier Schneider, Aurelio Bay, Guido Haefeli, Frédéric Blanc, Tatsuya Nakada, Michel De Cian, Elena Graverini, Renato Quagliani, Aravindhan Venkateswaran

An amplitude analysis of the B-0 -> K*(0) mu(+)mu(-) decay is presented using a dataset corresponding to an integrated luminosity of 4.7 fb(-1) of pp collision data collected with the LHCb experiment. For the first time, the coefficients associated to shor ...

Amer Physical Soc2024

Measurement of the muon flux at the SND@LHC experiment

Lesya Shchutska, Olivier Schneider, Aurelio Bay, Guido Haefeli, Elena Graverini, Ettore Zaffaroni, Mikhail Chapochnikov, Anna Mascellani, Carina Trippl, Serhii Cholak

The Scattering and Neutrino Detector at the LHC (SND@LHC) started taking data at the beginning of Run 3 of the LHC. The experiment is designed to perform measurements with neutrinos produced in proton-proton collisions at the LHC in an energy range between ...

2024

Results and Perspectives from the First Two Years of Neutrino Physics at the LHC by the SND@LHC Experiment

Lesya Shchutska, Olivier Schneider, Aurelio Bay, Konstantin Androsov, Jan Steggemann, Guido Haefeli, Elena Graverini, Ettore Zaffaroni, Mikhail Chapochnikov, Sun Hee Kim

After rapid approval and installation, the SND@LHC Collaboration was able to gather data successfully in 2022 and 2023. Neutrino interactions from nu(mu)s originating at the LHC IP1 were observed. Since muons constitute the major background for neutrino in ...

MDPI2024

Observation of Ξb0→ Ξc + Ds- and Ξb0 c D- s decays

Lesya Shchutska, Olivier Schneider, Aurelio Bay, Guido Haefeli, Frédéric Blanc, Tatsuya Nakada, Elena Graverini, Renato Quagliani, Aravindhan Venkateswaran, Luis Miguel Garcia Martin

Springer2024

Measurement of CP Violation in B0 → ψ(→ l+ l-)KS0(→ π+ π-) Decays

Lesya Shchutska, Olivier Schneider, Aurelio Bay, Guido Haefeli, Frédéric Blanc, Tatsuya Nakada, Elena Graverini, Renato Quagliani, Aravindhan Venkateswaran, Luis Miguel Garcia Martin

A measurement of time-dependent CP violation in the decays of B-0 and (B) over bar (0) mesons to the final states J/psi(-> mu(+) mu(-))K-S(0), psi(2S)(-> mu(+) mu(-))K-S(0) and J/psi(-> e(+)e(-))K-S(0) with K-S(0) -> pi(+)pi(-) is presented. The data corre ...

AMER PHYSICAL SOC2024