Publications associées à Measurement of the K+ → π+γγ decay

Power variations in fractional Sobolev spaces for a class of parabolic stochastic PDEs

We consider a class of parabolic stochastic PDEs on bounded domains D c Rd that includes the stochastic heat equation but with a fractional power gamma of the Laplacian. Viewing the solution as a process with values in a scale of fractional Sobolev spaces ...

INT STATISTICAL INST2023

Attaining the PeV frontier of the cosmic ray spectrum in space with HERD

Chiara Perrina

The High Energy cosmic-Radiation Detection facility (HERD) is a calorimetric experiment planned to be launched in 2027. It will be operational for at least 10 years on board the China Space Station. With HERD we will measure the energy flux of cosmic proto ...

E D P SCIENCES2023

Amplitude analysis for the measurement of the photon polarisation in B rightarrow K pi pi gamma decays

Violaine Bellée

This work proposes a method to measure the photon polarisation in

B^+ \rightarrow K^+ \pi^- \pi^+ \gamma

decays and prepares the necessary elements for this measurement using the data sets collected by the LHCb experiment at CERN in

2011

,

2012

, $2016 ...

EPFL2020

Teaching Architecture - A dialogue

Inès Lamunière

What are the pressing questions in architecture – in teaching, research and practice? Based on their many years of experience, professors Inès Lamunière and Laurent Stalder come together in five meetings to search for answers. They describe an approach to ...

Birkhäuser2019

Search for the rare decay of B+ -> l(+)nu e gamma with improved hadronic tagging

Olivier Schneider, Yiming Li, Mingkui Wang, Chao Wang, Tagir Aushev, Sun Hee Kim, Donghyun Kim, Xiao Wang

We present the result of the search for the rare B meson decay of B+ -> l(+)nu e gamma with l = e, mu. For the search the full data set recorded by the Belle experiment of 711 fb(-1) integrated luminosity near the Upsilon(4S) resonance is used. Signal cand ...

AMER PHYSICAL SOC2018

Measurement of eta(c) (1S), eta(c)(2S), and nonresonant eta 'pi(+)pi(-) production via two-photon collisions

Olivier Schneider, Yiming Li, Mingkui Wang, Chao Wang, Tagir Aushev, Tara Nanut, Jun Yong Kim, Ji Hyun Kim, Donghyun Kim, Xiao Wang, Lei Li

We report the measurement of gamma gamma -> eta(c) (1S) -> eta(c) (2S) -> eta'pi(+)pi(-) with eta' decays to gamma rho and eta pi(+)pi(-) using 941 fb(-1) of data collected with the Belle detector at the KEKB asymmetric-energy e(+)e(-) collider. The eta(c) ...

AMER PHYSICAL SOC2018

How Computer Science Risks to Lose its Innocence, and Should Attempt to Take Responsibility

Karl Aberer

Computer science is playing a driving role in transforming today's society through information technology. In this transformation we observe power shifts increasingly strengthening centralised organisations, which are negatively perceived by many people. W ...

Ieee Computer Soc2017

Searches for the Anomalous Photon Polarisation in Radiative B Decays at LHCb

Zhirui Xu

This thesis is exploring the measurements of the photon polarisation in radiative

B

decays at LHCb, which are mediated through

b\to s\gamma

transitions. To ensure optimal physics performance, procedures to align the LHCb detector and to monitor the ali ...

EPFL2016

Search for Structure in the B-s(0)pi(+/-) Invariant Mass Spectrum

Jian Wang, Olivier Schneider, Yiming Li, Yi Zhang, Aurelio Bay, Guido Haefeli, Christoph Frei, Frédéric Blanc, Tatsuya Nakada, Michel De Cian, Luca Pescatore, François Fleuret, Elena Graverini, Chitsanu Khurewathanakul, Renato Quagliani, Federico Betti, Aravindhan Venkateswaran, Luis Miguel Garcia Martin, Katharina Müller, Zhirui Xu, Lei Zhang, Jessica Prisciandaro, Mark Tobin, Minh Tâm Tran, Niko Neufeld, Matthew Needham, Marc-Olivier Bettler, Greig Alan Cowan, Maurizio Martinelli, Donal Patrick Hill, Cédric Potterat, Liang Sun, Pietro Marino, Mirco Dorigo, Jean Wicht, Xiaoxue Han, Liupan An, Federico Leo Redi, Ilya Komarov, Thibaud Humair, Maxime Schubiger, Hang Yin, Guido Andreassi, Violaine Bellée, Olivier Göran Girard, Axel Kuonen, Preema Rennee Pais, Pavol Stefko, Hans Dijkstra, Gerhard Raven, Peter Clarke, Frédéric Teubert, Giovanni Carboni, Victor Coco, Adam Davis, Paolo Durante, Yu Zheng, Anton Petrov, Maxim Borisyak, Feng Jiang

The B-s(0)pi(+/-) invariant mass distribution is investigated in order to search for possible exotic meson states. The analysis is based on a data sample recorded with the LHCb detector corresponding to 3 fb(-1) of pp collision data at root s 7 and 8 TeV. ...

Amer Physical Soc2016

Backreaction of particle production on false vacuum decay

As originally described by Rubakov, particles are produced during the tunneling of a metastable quantum field. We propose to extend his formalism to compute the backreaction of these particles on the semiclassical decay probability of the field. The idea i ...

Amer Physical Soc2016

Measurement of the K+ → π+γγ decay

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Power variations in fractional Sobolev spaces for a class of parabolic stochastic PDEs

Attaining the PeV frontier of the cosmic ray spectrum in space with HERD

Amplitude analysis for the measurement of the photon polarisation in B rightarrow K pi pi gamma decays

Teaching Architecture - A dialogue

Search for the rare decay of B+ -> l(+)nu e gamma with improved hadronic tagging

Measurement of eta(c) (1S), eta(c)(2S), and nonresonant eta 'pi(+)pi(-) production via two-photon collisions

How Computer Science Risks to Lose its Innocence, and Should Attempt to Take Responsibility

Searches for the Anomalous Photon Polarisation in Radiative B Decays at LHCb

Search for Structure in the B-s(0)pi(+/-) Invariant Mass Spectrum

Backreaction of particle production on false vacuum decay

Attaining the PeV frontier of the cosmic ray spectrum in space with HERD

Power variations in fractional Sobolev spaces for a class of parabolic stochastic PDEs

Amplitude analysis for the measurement of the photon polarisation in B rightarrow K pi pi gamma decays

How Computer Science Risks to Lose its Innocence, and Should Attempt to Take Responsibility

Teaching Architecture - A dialogue

Searches for the Anomalous Photon Polarisation in Radiative B Decays at LHCb

Backreaction of particle production on false vacuum decay

Search for the rare decay of B+ -> l(+)nu e gamma with improved hadronic tagging

Measurement of eta(c) (1S), eta(c)(2S), and nonresonant eta 'pi(+)pi(-) production via two-photon collisions

Search for Structure in the B-s(0)pi(+/-) Invariant Mass Spectrum