Publications de Remi Léandre Albert Louvot

The Physics of the B Factories

Olivier Schneider, Yiming Li, Aurelio Bay, Varun Sharma, Frédéric Blanc, Greig Alan Cowan, Remi Léandre Albert Louvot, Stewart Cole, Xin Chen, Jian Wang

Springer2014

Precise measurement of the branching fractions for B-s(0) -> D-s(()()+) D-s(()()-) and first measurement of the D-s(+) D-s(-) polarization using e(+)e(-) collisions

Olivier Schneider, Remi Léandre Albert Louvot, Yiming Li, Mingkui Wang, Chao Wang, Tagir Aushev, Jing Li

We have made a precise measurement of the absolute branching fractions of B-s(0) -> D-s(()()+) D-s(()()-) decays using 121.4 fb(-1) of data recorded by the Belle experiment running at the Upsilon(5S) resonance. The results are B(B-s(0) -> D-s(+) D-s(-)) ...

American Physical Society2013

Study of Bs0-meson Production and Measurement of Bs0 Decays into a Ds(*)- and a Light Meson in e+e- Collisions at √s=10.87 GeV

Remi Léandre Albert Louvot

This work is dedicated to the experimental study of Bs0 production in e+e– collisions at the Υ(5S) resonance (√s = 10.87 GeV), as well as measurement with fully reconstructed Bs0 decays involving one Ds(*)– meson. The analysed data sample was recorded betw ...

EPFL2012

Evidence for Direct CP Violation in B-+/- -> eta h(+/-) and Observation of B-0 -> eta K-0

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

We report measurements of the branching fractions and CP asymmetries for B-+/- -> eta h(+/-) (h = K or pi) and the observation of the decay B-0 -> eta K-0 from the final data sample of 772 x 10(6) B (B) over bar pairs collected with the Belle detector at t ...

2012

First observation of CP violation and improved measurement of the branching fraction and polarization of B-0 -> D(+) D(-) decays

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

We report the measurement of the branching fraction, the polarization, and the parameters of the time-dependent CP violation in B-0 -> D*(+) D*(-) decays using a data sample of 772 x 10(6)B (B) over bar pairs, collected at the Upsilon(4S) resonance with th ...

American Physical Society2012

Measurement of gamma gamma* -> pi(0) transition form factor at Belle

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

We report a measurement of the process gamma gamma* -> pi(0) with a 759 fb(-1) data sample recorded with the Belle detector at the KEKB asymmetric-energy e(+)e(-) collider. The pion transition form factor, F(Q(2)), is measured for the kinematical region 4 ...

American Physical Society2012

Measurement of branching fraction and first evidence of CP violation in B-0 -> a(1)(+/-)(1260)pi(-/+) decays

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

We present a measurement of the branching fraction and time-dependent CP violation parameters in B-0 -> a(1)(+/-)(1260)pi(-/+) decays. The results are obtained from the final data sample containing 772 x 10(6) B (B) over bar pairs collected at the Gamma(4S ...

American Physical Society2012

Measurements of branching fractions and time-dependent CP violating asymmetries in B-0 -> D-(*D-)+/-(-/+) decays

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

We report measurements of branching fractions and time-dependent CP asymmetries in B-0 -> D+D- and B-0 -> D*D-+/-(-/+) decays using a data sample that contains (772 +/- 11) x 10(6)B (B) over bar pairs collected at the Y(4S) resonance with the Belle detecto ...

American Physical Society2012

First Observation of B-s(0) -> J/psi eta and B-s(0) -> J/psi eta '

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

We report first observations of B-s(0) -> J/psi eta and B-s(0) -> J/psi eta'. The results are obtained from 121.4 fb(-1) of data collected at the Gamma(5S) resonance with the Belle detector at the KEKB e(+)e(-) collider. We obtain the branching fractions B ...

2012

Evidence for the eta(b)(2S) and Observation of h(b)(1P) -> eta(b)(1S)gamma and h(b)(2P) -> eta(b)(1S)gamma

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

We report the first evidence for the eta(b)(2S) using the h(b)(2P) -> eta(b)(2S)gamma transition and the first observation of the h(b)(1P) -> eta(b)(1S)gamma and h(b)(2P) -> eta(b)(1S)gamma transitions. The mass and width of the eta(b)(1S) and eta(b)(2S) a ...

American Physical Society2012