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Olivier Schneider

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Related publications (1,123)

Absolute luminosity measurements with the LHCb detector at the LHC

Christophe Salzmann, Christoph Frei, Peter Clarke, Aurelio Bay, Minh Tâm Tran, Marc-Olivier Bettler, Cédric Potterat, Neal Gauvin, Géraldine Conti, Christophe Bauer, Joël Bressieux, Vincent Fave, Johan Luisier, Tatsuya Nakada, Guido Haefeli, Niko Neufeld, Mathias Oleg Knecht, Olivier Schneider, Pierre Jaton, Hans Dijkstra, Julien Rouvinet, Frédéric Guillaume Dupertuis, Raphael Märki, Frédéric Teubert, Gerhard Raven, Anne Keune, Frédéric Blanc, Matthew Needham, Raluca Anca Muresan, Barinjaka Rakotomiaramanana, Jessica Prisciandaro, Vladislav Balagura, Mark Tobin, Victor Coco, Plamen Hristov Hopchev, Jian Wang, Yi Zhang, Lei Zhang, Michel De Cian, Wenyu Zhang, Giovanni Carboni

Absolute luminosity measurements are of general interest for colliding-beam experiments at storage rings. These measurements are necessary to determine the absolute cross-sections of reaction processes and are valuable to quantify the performance of the ac ...

2012

Measurements of B-c(+) Production and Mass with the B-c(+) -> J/psi pi(+) Decay

Christophe Salzmann, Christoph Frei, Peter Clarke, Jean Wicht, Aurelio Bay, Minh Tâm Tran, Marc-Olivier Bettler, Cédric Potterat, Joël Bressieux, Vincent Fave, Johan Luisier, Tatsuya Nakada, Guido Haefeli, Niko Neufeld, Olivier Schneider, Pierre Jaton, Hans Dijkstra, Julien Rouvinet, Frédéric Guillaume Dupertuis, Frédéric Teubert, Gerhard Raven, Bastien Luca Muster, Anne Keune, Frédéric Blanc, Matthew Needham, Raluca Anca Muresan, Songmei Wu, Barinjaka Rakotomiaramanana, Greig Alan Cowan, Jessica Prisciandaro, Mark Tobin, Victor Coco, Maurizio Martinelli, Plamen Hristov Hopchev, Jian Wang, Yi Zhang, Lei Zhang, Michel De Cian, Donal Patrick Hill, Wenyu Zhang, Yiming Li, Giovanni Carboni

First study of eta(c)(1S), eta(1760) and X(1835) production via eta 'pi(+)pi(-) final states in two-photon collisions

Remi Léandre Albert Louvot, Olivier Schneider, Tagir Aushev, Xiao Wang, Jing Li

The invariant mass spectrum of the eta 'pi(+)pi(-) final state produced in two-photon collisions is obtained using a 673 fb(-1) data sample collected in the vicinity of the Gamma(4S) resonance with the Belle detector at the KEKB asymmetric-energy e(+)e(-) ...

American Physical Society2012

First measurement of phi(3) with a model-independent Dalitz plot analysis of B-+/- -> DK +/-, D -> K-S(0)pi(+)pi(-) decay

Remi Léandre Albert Louvot, Olivier Schneider, Tagir Aushev, Mingkui Wang, Chao Wang, Jun Yong Kim, Ji Hyun Kim, Yiming Li, Jing Li

We present the first measurement of the angle phi(3) of the unitarity triangle using a model-independent Dalitz plot analysis of B-+/- -> DK +/-, D -> K-S(0)pi(+)pi(-) ecays. The method uses, as input, measurements of the strong phase of the D -> K-S(0)pi( ...

American Physical Society2012

Evidence for CP Violation in the Decay D+ -> K-S(0)pi(+)

Remi Léandre Albert Louvot, Olivier Schneider, Tagir Aushev, Chao Wang, Jun Yong Kim, Ji Hyun Kim, Yiming Li, Xiao Wang, Jing Li

We observe evidence for CP violation in the decay D+ -> K-S(0)pi(+) using a data sample with an integrated luminosity of 977 fb(-1) collected by the Belle detector at the KEKB e(+) e(-) asymmetric-energy collider. The CP asymmetry in the decay is measured ...

2012

Search for CP Violation in D-+/- Meson Decays to phi pi(+/-)

Aurelio Bay, Remi Léandre Albert Louvot, Olivier Schneider, Tagir Aushev, Mingkui Wang, Chao Wang, Jun Yong Kim, Ji Hyun Kim, Yiming Li, Jing Li

We search for CP violation in Cabibbo-suppressed charged D meson decays by measuring the difference between the CP-violating asymmetries for the Cabibbo-suppressed decays D-+/- -> K+K-pi(+/-) and the Cabibbo-favored decays D1/s -> K+K-pi(+/-) in the K+K- m ...

2012

Measurement of the CP-Violation Parameter sin2 phi(1) with a New Tagging Method at the gamma(5S) Resonance

Jean Wicht, Remi Léandre Albert Louvot, Olivier Schneider, Sun Hee Kim, Tagir Aushev, Mingkui Wang, Chao Wang, Jun Yong Kim, Ji Hyun Kim, Yiming Li, Xiao Wang, Jing Li

We report a measurement of the CP-violation parameter sin2 phi(1) at the gamma(5S) resonance using a new tagging method, called "B-pi tagging." In gamma(5S) decays containing a neutral B meson, a charged B, and a charged pion, the neutral B is reconstructe ...

2012

Measurement of b-hadron masses

Christophe Salzmann, Christoph Frei, Peter Clarke, Aurelio Bay, Minh Tâm Tran, Marc-Olivier Bettler, Cédric Potterat, Neal Gauvin, Christophe Bauer, Joël Bressieux, Vincent Fave, Johan Luisier, Tatsuya Nakada, Guido Haefeli, Niko Neufeld, Mathias Oleg Knecht, Olivier Schneider, Pierre Jaton, Hans Dijkstra, Julien Rouvinet, Frédéric Guillaume Dupertuis, Frédéric Teubert, Gerhard Raven, Bastien Luca Muster, Anne Keune, Frédéric Blanc, Matthew Needham, Raluca Anca Muresan, Barinjaka Rakotomiaramanana, Greig Alan Cowan, Jessica Prisciandaro, Vladislav Balagura, Albert Puig Navarro, Mark Tobin, Victor Coco, Plamen Hristov Hopchev, Jian Wang, Yi Zhang, Lei Zhang, Michel De Cian, Wenyu Zhang, Giovanni Carboni

Measurement of the CP violating phase phi(s) in (B)over-bar(s)(0) -> J/psi f(0)(980)

Search for the decay B-0 -> DK*(0) followed by D -> K- pi(+)

Remi Léandre Albert Louvot, Olivier Schneider, Tagir Aushev, Mingkui Wang, Chao Wang, Jun Yong Kim, Ji Hyun Kim

We report a study of the decay B-0 -> DK+ pi(-) followed by D -> K- pi(+) , where D indicates D-0 or (D) over bar (0). We reconstruct the DK+ pi(-) state in a phase space corresponding to DK*(892)(0). The CP-violating angle phi(3) affects its decay rate vi ...

American Physical Society2012

Measurement of mixing and CP violation parameters in two-body charm decays

Christophe Salzmann, Christoph Frei, Peter Clarke, Aurelio Bay, Minh Tâm Tran, Marc-Olivier Bettler, Cédric Potterat, Neal Gauvin, Christophe Bauer, Joël Bressieux, Vincent Fave, Johan Luisier, Tatsuya Nakada, Guido Haefeli, Niko Neufeld, Mathias Oleg Knecht, Olivier Schneider, Pierre Jaton, Hans Dijkstra, Julien Rouvinet, Frédéric Guillaume Dupertuis, Frédéric Teubert, Gerhard Raven, Bastien Luca Muster, Anne Keune, Frédéric Blanc, Matthew Needham, Raluca Anca Muresan, Barinjaka Rakotomiaramanana, Greig Alan Cowan, Jessica Prisciandaro, Vladislav Balagura, Albert Puig Navarro, Mark Tobin, Victor Coco, Maurizio Martinelli, Plamen Hristov Hopchev, Jian Wang, Yi Zhang, Lei Zhang, Michel De Cian, ,

Measurement of the effective B-S(0) -> K+K- lifetime

Christophe Salzmann, Christoph Frei, Peter Clarke, Aurelio Bay, Minh Tâm Tran, Marc-Olivier Bettler, Cédric Potterat, Neal Gauvin, Géraldine Conti, Christophe Bauer, Joël Bressieux, Vincent Fave, Johan Luisier, Tatsuya Nakada, Guido Haefeli, Niko Neufeld, Mathias Oleg Knecht, Olivier Schneider, Pierre Jaton, Hans Dijkstra, Julien Rouvinet, Frédéric Guillaume Dupertuis, Frédéric Teubert, Gerhard Raven, Anne Keune, Frédéric Blanc, Matthew Needham, Raluca Anca Muresan, Barinjaka Rakotomiaramanana, Greig Alan Cowan, Jessica Prisciandaro, Vladislav Balagura, Albert Puig Navarro, Mark Tobin, Victor Coco, Plamen Hristov Hopchev, Jian Wang, Yi Zhang, Lei Zhang, Michel De Cian, Wenyu Zhang, Giovanni Carboni

Searches for Majorana neutrinos in B- decays

Observation of Two Charged Bottomoniumlike Resonances in Y(5S) Decays

Remi Léandre Albert Louvot, Olivier Schneider, Tagir Aushev, Mingkui Wang, Chao Wang, Jun Yong Kim, Ji Hyun Kim, Yiming Li, Xiao Wang, Jing Li

We report the observation of two narrow structures in the mass spectra of the pi(+/-) Y(nS) (n = 1, 2, 3) and pi(+/-) h(b)(mP) (m = 1, 2) pairs that are produced in association with a single charged pion in Y(5S) decays. The measured masses and widths of t ...

2012

Search for the X(4140) state in B+ -> J/psi phi K+ decays

Christophe Salzmann, Christoph Frei, Peter Clarke, Aurelio Bay, Minh Tâm Tran, Marc-Olivier Bettler, Cédric Potterat, Neal Gauvin, Christophe Bauer, Joël Bressieux, Vincent Fave, Johan Luisier, Tatsuya Nakada, Guido Haefeli, Niko Neufeld, Mathias Oleg Knecht, Olivier Schneider, Pierre Jaton, Hans Dijkstra, Julien Rouvinet, Frédéric Guillaume Dupertuis, Frédéric Teubert, Gerhard Raven, Bastien Luca Muster, Anne Keune, Frédéric Blanc, Matthew Needham, Raluca Anca Muresan, Barinjaka Rakotomiaramanana, Greig Alan Cowan, Jessica Prisciandaro, Vladislav Balagura, Mark Tobin, Victor Coco, Plamen Hristov Hopchev, Jian Wang, Yi Zhang, Lei Zhang, Michel De Cian, Wenyu Zhang, Giovanni Carboni

A search for the X(4140) state in B+ -> J/psi phi K+ decays is performed with 0.37 fb(-1) of pp collisions at root s = 7 TeV collected by the LHCb experiment. No evidence for this state is found, in 2.4 sigma disagreement with a measurement by CDF. An uppe ...

2012

Measurement of B-0 -> J/psi eta((')) and constraint on the eta - eta ' mixing angle

Remi Léandre Albert Louvot, Olivier Schneider, Tagir Aushev, Mingkui Wang, Chao Wang, Jun Yong Kim, Ji Hyun Kim, Yiming Li, Jing Li

We measure the branching fractions of B-0 -> J/psi eta((')) decays with the complete Belle data sample of 772 x 10(6) B (B) over bar events collected at the Y(4S) resonance with the Belle detector at the KEKB asymmetric-energy e(+)e(-) collider. The result ...

American Physical Society2012

Search for CP Violation in tau(+/-) -> K-S(0)pi(+/-)nu(tau) Decays at Belle

Remi Léandre Albert Louvot, Olivier Schneider, Chao Wang, Vladislav Balagura, Yiming Li, Jing Li

We report on a search for CP violation in tau(+/-) -> K-S(0)pi(+/-)nu(tau) decays using a data sample of 699 fb(-1) collected by the Belle experiment at the KEKB electron-positron asymmetric-energy collider. The CP asymmetry is measured in four bins of the ...

2011

Observation of D+ -> K+eta(()'()) and Search for CP Violation in D+ -> pi(+)eta(()'()) Decays

Aurelio Bay, Remi Léandre Albert Louvot, Olivier Schneider, Sun Hee Kim, Tagir Aushev, Mingkui Wang, Chao Wang, Jun Yong Kim, Ji Hyun Kim, Yiming Li, Jing Li

We report the first observation of the doubly Cabibbo-suppressed decays D+ -> K+eta(()'()) using a 791 fb(-1) data sample collected with the Belle detector at the KEKB asymmetric-energy e(+)e(-) collider. The ratio of the branching fractions of doubly Cabi ...

2011

Search for the rare decays Bs0 -> mu+mu- and B0 -> mu+mu-

Christophe Salzmann, Christoph Frei, Peter Clarke, Aurelio Bay, Minh Tâm Tran, Marc-Olivier Bettler, Cédric Potterat, Neal Gauvin, Géraldine Conti, Christophe Bauer, Joël Bressieux, Johan Luisier, Tatsuya Nakada, Guido Haefeli, Niko Neufeld, Mathias Oleg Knecht, Olivier Schneider, Pierre Jaton, Hans Dijkstra, Julien Rouvinet, Frédéric Guillaume Dupertuis, Frédéric Teubert, Gerhard Raven, Anne Keune, Frédéric Blanc, Matthew Needham, Raluca Anca Muresan, Barinjaka Rakotomiaramanana, Greig Alan Cowan, Andreas Alexander Maier, Vladislav Balagura, Albert Puig Navarro, Mark Tobin, Victor Coco, Plamen Hristov Hopchev, Jian Wang, Yi Zhang, Lei Zhang, Michel De Cian, Wenyu Zhang, Yiming Li, Giovanni Carboni

First observation of radiative B0 -> phi K0 gamma decays and measurements of their time-dependent CP violation

Remi Léandre Albert Louvot, Olivier Schneider, Sun Hee Kim, Jun Yong Kim, Ji Hyun Kim, Yiming Li, Jing Li

We report the first observation of the radiative decay B-0 -> phi K-0 gamma using a data sample of 772 x 10(6) B (B) over bar pairs collected at the Gamma(4S) resonance with the Belle detector at the KEKB asymmetric-energy e(+)e(-) collider. We observe a s ...

American Physical Society2011

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Measurements of B-c(+) production and mass are performed with the decay mode B-c(+) -> J/psi pi(+) using 0.37 fb(-1) of data collected in pp collisions at root s = 7 TeV by the LHCb experiment. The ratio of the production cross section times branching frac ...

Amer Physical Soc2012

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

Giovanni Carboni

Measurement of mixing-induced CP violation in (B) over bar (0)(s) decays is of prime importance in probing new physics. So far only the channel (B) over bar (0)(s) -> J/psi phi has been used. Here we report on a measurement using an LHCb data sample of 0.4 ...

2012

Wenyu Zhang

Giovanni Carboni

A study of mixing and indirect CP violation in D-0 mesons through the determination of the parameters y(CP) and A(Gamma) is presented. The parameter y(CP) is the deviation from unity of the ratio of effective lifetimes measured in D-0 decays to the CP eige ...

Springer Nature2012

A measurement of the effective B-S(0) -> K+K- lifetime is presented using approximately 37 pb(-1) of data collected by LHCb during 2010. This quantity can be used to put constraints on contributions from processes beyond the Standard Model in the B-S(0) me ...

2012

Searches for heavy Majorana neutrinos in B- decays in final states containing hadrons plus a mu(-) mu(-) pair have been performed using 0.41 fb(-1) of data collected with the LHCb detector in proton-proton collisions at a center-of-mass energy of 7 TeV. Th ...

American Physical Society2012

American Physical Society

A search for the decays Bs0 -> mu(+)mu(-) and B0 -> mu(+)mu(-) is performed with about 37 pb(-1) of pp collisions at root s = 7 TeV collected by the LHCb experiment at the Large Hadron Collider at CERN. The observed numbers of events are consistent with th ...

2011