The Scikit HEP Project - overview and prospects

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A Fast Ion Loss Detector for the TCV Tokamak

Lorenzo Stipani

A Fast Ion Loss Detector (FILD) was designed, assembled, installed and commissioned for TCV. This is a radially positionable, scintillator based detector that provides information on the 2D fast-ion velocity space lost at the probe's location. The collecte ...

EPFL2021

Learning new physics from a machine

Andrea Wulzer, Raffaele Tito D'Agnolo

We propose using neural networks to detect data departures from a given reference model, with no prior bias on the nature of the new physics responsible for the discrepancy. The virtues of neural networks as unbiased function approximants make them particu ...

American Physical Society2019

Measurement of the branching fractions of the decays D+ -> K-K+K+, D+ -> pi-pi(+) K+ and D-s(+) -> pi-K+K+

Jian Wang, Mingkui Wang, Olivier Schneider, Zhirui Xu, Yiming Li, Yi Zhang, Lei Zhang, Yi Wang, Aurelio Bay, Guido Haefeli, Jessica Prisciandaro, Tatsuya Nakada, Mark Tobin, Frédéric Blanc, Minh Tâm Tran, Greig Alan Cowan, Maurizio Martinelli, Vladislav Balagura, Donal Patrick Hill, Liang Sun, Luca Pescatore, François Fleuret, Mirco Dorigo, Jean Wicht, Sebastiana Gianì, Liupan An, Chitsanu Khurewathanakul, Plamen Hristov Hopchev, Renato Quagliani, Maxime Schubiger, Hang Yin, Guido Andreassi, Olivier Göran Girard, Axel Kuonen, Preema Rennee Pais, Aravindhan Venkateswaran, Elena Graverini, Michel De Cian, Maria Elena Stramaglia, Vladimir Macko, Federico Leo Redi, Luis Miguel Garcia Martin, Tommaso Colombo, Vitalii Lisovskyi, Violaine Bellée, Guillaume Max Pietrzyk, Pavol Stefko, Pietro Marino, Maria Vieites Diaz, Lino Ferreira Lopes, Matthieu Philippe Luther Marinangeli, Christoph Frei, Sergi Aguacil Moreno, Nathalie Sophie Adeline Serra, Achille Mauri, Josiane Angèle Charlotte Smith-Clerc

The branching fractions of the doubly Cabibbo-suppressed decays D+ ! K, D+ ! and D+ s ! are measured using the decays D+ ! K and D+ s ! K as normalisation channels. The measurements are performed using proton-proton collision data collected with the LHCb d ...

Springer Nature2019

Measurement of lifetimes for heavy flavour mesons using semileptonic B decays at LHCb

Brice Emile Maurin

This thesis work presents lifetime measurements of heavy-flavour mesons made with semileptonic

B^0

and

B^0_s

decays based on

3~{\rm fb}^{-1}

of data collected with the LHCb detector in proton-proton collisions at centre-of-mass energies of 7 and 8 Te ...

EPFL2018

Observation of the Lambda(0)(b) -> Lambda phi decay

Jian Wang, Olivier Schneider, Zhirui Xu, Yiming Li, Yi Zhang, Lei Zhang, Aurelio Bay, Guido Haefeli, Jessica Prisciandaro, Tatsuya Nakada, Christoph Frei, Mark Tobin, Frédéric Blanc, Minh Tâm Tran, Michel De Cian, Greig Alan Cowan, Maurizio Martinelli, Donal Patrick Hill, Liang Sun, Pietro Marino, Luca Pescatore, François Fleuret, Mirco Dorigo, Jean Wicht, Sebastiana Gianì, Liupan An, Elena Graverini, Federico Leo Redi, Chitsanu Khurewathanakul, Ilya Komarov, Renato Quagliani, Maxime Schubiger, Hang Yin, Guido Andreassi, Bastien Luca Muster, Violaine Bellée, Maria Vieites Diaz, Olivier Göran Girard, Axel Kuonen, Alessandro Mapelli

The Lambda(0)(b) -> Lambda phi decay is observed using data corresponding to an integrated luminosity of 3.0 fb(-1) recorded by the LHCb experiment. The decay proceeds at leading order via a b -> ss loop transition and is therefore sens ...

Elsevier Science Bv2016

Measurement of b-hadron masses

Jian Wang, Olivier Schneider, Yi Zhang, Lei Zhang, Aurelio Bay, Guido Haefeli, Jessica Prisciandaro, Tatsuya Nakada, Christoph Frei, Mark Tobin, Frédéric Blanc, Minh Tâm Tran, Michel De Cian, Greig Alan Cowan, Vladislav Balagura, Plamen Hristov Hopchev, Bastien Luca Muster, Frédéric Guillaume Dupertuis, Julien Rouvinet, Christophe Salzmann, Pierre Jaton, Barinjaka Rakotomiaramanana, Joël Bressieux, Raluca Anca Muresan, Johan Luisier, Albert Puig Navarro, Anne Keune, Vincent Fave, Christophe Bauer, Mathias Oleg Knecht, Neal Gauvin

Measurements of b-hadron masses are performed with the exclusive decay modes B+ --> J/psi K+, B-0 --> J/psi K-0*, B-0 --> J/psi K-S(0), B-s(0) --> j/psi phi and Lambda(0)(b) --> J/psi Lambda using all integrated luminosity of 35 pb(-1) collected in pp coll ...

2012

Measurement of CP asymmetries in B0→K0π0 decays

Olivier Schneider, Chao Wang, Vladislav Balagura, Sun Hee Kim, Remi Léandre Albert Louvot

We report measurements of CP violation parameters in B0→K0π0 decays based on a data sample of 657×106BB̄ pairs collected with the Belle detector at the KEKB e+e- asymmetric-energy collider. We use B0→KS0π0 decays for both mixing-induced and direct CP viola ...

American Physical Society2010