Recherche

Afficher tous les résultats pour

Accueil

Personne

Chao Wang

Cette personne a quitté l’EPFL

À propos
Confidentialité
Mentions légales

Graph Chatbot

Publications associées (361)

Page 3 sur 19

Measurement of the branching fraction and CP asymmetry in B-0 -> pi(0)pi(0) decays, and an improved constraint on phi(2)

Mingkui Wang, Olivier Schneider, Chao Wang, Yiming Li, Sun Hee Kim, Tara Nanut, Jun Yong Kim

We measure the branching fraction and CP violation asymmetry in the decay B-0 -> pi(0)pi(0), using a data sample of 752 x 10(6) B (B) over bar pairs collected at the Y(4S) resonance with the Belle detector at the KEKB e(+)e(-) collider. The obtained branch ...

American Physical Society2017

Bounds on the width, mass difference and other properties of X(3872) -> pi(+)pi(-) J/psi decays

Mingkui Wang, Olivier Schneider, Chao Wang, Yiming Li, Aurelio Bay, Sun Hee Kim, Jun Yong Kim, Remi Léandre Albert Louvot

We present results from a study of X(3872) -> pi pi J/psi decays produced via exclusive B -> KX(3872) decays. We determine the mass to be M-X(3872) = (3871.85 +/- 0.27(stat) +/- 0.19(syst)) MeV, a 90% confidence level upper limit on the natural width of Ga ...

American Physical Society2011

Evidence for D0-D̄0 mixing

Mingkui Wang, Olivier Schneider, Chao Wang, Lei Zhang, Aurelio Bay, Vladislav Balagura, Stewart Cole, Jean Wicht, Sun Hee Kim, Yuan Yuan

We observe evidence for D0-D̄0 mixing by measuring the difference in the apparent lifetime when a D0 meson decays to the CP eigenstates K+K- and π+π- and when it decays to the final state K-π+. We find the relative difference of the lifetimes yCP to be [1. ...

2007

Search for charmonium and charmoniumlike states in gamma(2S) radiative decays

Mingkui Wang, Olivier Schneider, Chao Wang, Yiming Li, Jun Yong Kim, Remi Léandre Albert Louvot

Using a sample of 158 x 10(6) gamma (2S) events collected with the Belle detector, charmonium and charmoniumlike states with even charge parity are searched for in gamma (2S) radiative decays. No significant chi(cJ) or eta(c) signal is observed, and the fo ...

American Physical Society2011

Observation of X(3872) in B -> X(3872)K pi decays

Olivier Schneider, Chao Wang, Yiming Li, Sun Hee Kim, Jun Yong Kim

We report the first observation of B-0 -> X(3872)(K+pi(-)) and evidence for B+ -> X(3872)(K-0 pi(+)). We measure the product of branching fractions for the former to be B(B-0 -> X(3872)(K+pi(-)) x B(X(3872) -> J/psi pi(+)pi(-)) = (7.9 +/- 1.3(stat) +/- 0.4 ...

American Physical Society2015

Search for B decays to final states with the eta(c) meson

Mingkui Wang, Olivier Schneider, Chao Wang, Sun Hee Kim

We report a search for B decays to selected final states with the eta (c) meson: B (+/-) -> K (+/-) eta (c) pi (+) pi (-), B-+/- -> K-+/-eta(c)pi(+)pi(-), B-+/- -> K-+/-eta(c)eta and B-+/- -> K-+/-eta(c)pi(0). The analysis is based on 772 x 10(6) B (B) ove ...

Springer Nature2015

Evidence for the decay B-0 -> eta pi(0)

Mingkui Wang, Olivier Schneider, Chao Wang, Yiming Li, Sun Hee Kim, Tara Nanut, Jun Yong Kim

We report a search for the charmless hadronic decay B-0 -> eta pi(0) with a data sample corresponding to an integrated luminosity of 694 fb(-1) containing 753 x 10(6) BB pairs. The data were collected by the Belle experiment running on the Upsilon(4S) reso ...

American Physical Society2015

Study of intermediate two-body decays in over(B, ̄)0 → Σc (2455)0 over(p, ̄) π+

Mingkui Wang, Olivier Schneider, Chao Wang, Vladislav Balagura

We present results of a detailed study of the three-body over(B, ̄)0 → Σc (2455)0 over(p, ̄) π+ decay. A significant enhancement of signal events is observed in the over(p, ̄) π+ invariant mass distribution near 1.5 GeV / c2 that is consistent with the pre ...

2008

Evidence for direct CP violation in the decay B^{±}→D^{(}*^{)}K^{±}, D→K_{S}^{0}π^{+}π^{-} and measurement of the CKM phase ϕ_{3}

Jian Wang, Mingkui Wang, Olivier Schneider, Chao Wang, Aurelio Bay, Vladislav Balagura, Remi Léandre Albert Louvot

We present a new measurement of the unitarity triangle angle phi(3) using a Dalitz plot analysis of the K-S(0)pi(+)pi(-) decay of the neutral D meson produced in B-+/- -> D-(*()) K-+/- decays. The method exploits the interference between D-0 and (D) over b ...

American Physical Society2010

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

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

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

High-statistics study of neutral-pion pair production in two-photon collisions

Olivier Schneider, Chao Wang, Remi Léandre Albert Louvot

The differential cross sections for the process gamma gamma -> pi(0)pi(0) have been measured in the kinematic range 0.6 GeV < W < 4.1 GeV, vertical bar cos theta* vertical bar < 0.8 in energy and pion scattering angle, respectively, in the gamma gamma cent ...

American Physical Society2009

Measurement of the branching fraction of B+ -> tau(+)nu(tau) decays with the semileptonic tagging method

Mingkui Wang, Olivier Schneider, Chao Wang, Sun Hee Kim, Tara Nanut, Jun Yong Kim

We report a measurement of the branching fraction of B+ -> tau(+) nu(tau) decays using a data sample of 772 x 10(6) B (B) over bar pairs, collected at the Upsilon(4S) resonance with the Belle detector at the KEKB asymmetric-energy e(+)e(-) collider. We rec ...

American Physical Society2015

Search for B+ -> mu(+)nu(mu) and B+ -> mu N+ with inclusive tagging

Mingkui Wang, Olivier Schneider, Chao Wang, Sun Hee Kim

We report the result for a search for the leptonic decay of B+ -> mu(+)nu mu using the full Belle dataset of 711 fb(-1) of integrated luminosity at the gamma(4S) resonance. In the Standard Model leptonic B-meson decays are helicity and Cabibbo-Kobayashi-Ma ...

American Physical Society2020

Electron and photon reconstruction and identification with the CMS experiment at the CERN LHC

Jian Wang, Matthias Finger, Qian Wang, Chao Wang, Yiming Li, João Miguel das Neves Duarte, Matthias Wolf, Varun Sharma, Yi Zhang, Tian Cheng, Yixing Chen, Alexis Kalogeropoulos, Ioannis Papadopoulos, Konstantin Androsov, Yi Wang, Ekaterina Kuznetsova, Hua Zhang, Siyuan Wang, Jessica Prisciandaro, Peter Hansen, Xin Chen, Michele Bianco, Sebastiana Gianì, Davide Di Croce, Arvind Shah, Wei Sun, Jian Zhao, Rakesh Chawla, Jan Steggemann, Federica Legger, Doohyun Kim, Bertrand François, Bandeep Singh

The performance is presented of the reconstruction and identification algorithms for electrons and photons with the CMS experiment at the LHC. The reported results are based on proton-proton collision data collected at a center-of-mass energy of 13 TeV and ...

2021

Branching Fraction Measurements of the Rare B-s(0) -> phi mu(+)mu(-) and B-s(0)-> f(2)' (1525)mu(+)mu(-) Decays

Jian Wang, Mingkui Wang, Olivier Schneider, Zhirui Xu, Chao Wang, Yiming Li, Yi Zhang, Lei Zhang, Yi Wang, Aurelio Bay, Ho Ling Li, Guido Haefeli, Tatsuya Nakada, Christoph Frei, Mark Tobin, Frédéric Blanc, Maurizio Martinelli, Vladislav Balagura, Liang Sun, Lesya Shchutska, François Fleuret, Liupan An, Renato Quagliani, Maxime Schubiger, Hang Yin, Preema Rennee Pais, Aravindhan Venkateswaran, Elena Graverini, Michel De Cian, Vladimir Macko, Federico Leo Redi, Sebastian Schulte, Tommaso Colombo, Donal Patrick Hill, Vitalii Lisovskyi, Tara Nanut, Minh Tâm Tran, Violaine Bellée, Guillaume Max Pietrzyk, Pavol Stefko, Maria Vieites Diaz, Marie Theres Christin Bachmayer, Lino Ferreira Lopes, Matthieu Philippe Luther Marinangeli, Serhii Cholak, Veronica Sølund Kirsebom, Ettore Zaffaroni, Maria Elena Stramaglia, Surapat Ek-In, Ana Bárbara Rodrigues Cavalcante, Sara Celani, Carina Trippl, Arnout Lodewijk M Beckers, Sonia Amina Bouchiba, Thi Dung Nguyen, Maxim Karpov, Alison Maria Tully, Mâu Chung Nguyên, Maarten Willibrord Uriël Van Dijk, Simone Meloni, Xiaoqing Zhou, Elisabeth Maria Niel, Alexandre Brea Rodriguez, Marco Guarise

The branching fraction of the rare B-s(0) -> phi mu(+)mu(-) decay is measured using data collected by the LHCb experiment at center-of-mass energies of 7, 8, and 13 TeV, corresponding to integrated luminosities of 1, 2, and 6 fb(-1), respectively. The bran ...

2021

Study of B-0 -> rho(0)rho(0) decays, implications for the CKM angle phi(2) and search for other B-0 decay modes with a four-pion final state

Mingkui Wang, Olivier Schneider, Chao Wang, Jun Yong Kim

We present a study of the branching fraction of the decay B-0 -> rho(0)rho(0) and the fraction of longitudinally polarized rho(0) mesons in this decay. The results are obtained from the final data sample containing 772 x 10(6) B (B) over bar pairs collecte ...

American Physical Society2014

Transverse momentum dependent production cross sections of charged pions, kaons and protons produced in inclusive e(+)e(-) annihilation at root s=10.58 GeV

Mingkui Wang, Olivier Schneider, Chao Wang, Yiming Li, Sun Hee Kim, Jun Yong Kim, Mithilesh Nayak

We report measurements of the production cross sections of charged pions, kaons, and protons as a function of fractional energy, the event-shape variable called thrust, and the transverse momentum with respect to the thrust axis. These measurements access ...

American Physical Society2019

Proteome-Wide Profiling of Targets of Cysteine reactive Small Molecules by Using Ethynyl Benziodoxolone Reagents

Chao Wang, Jérôme Waser, Reto Frei, Durga Prasada Rao Hari

In this study, we present a highly efficient method for proteomic profiling of cysteine residues in complex proteomes and in living cells. Our method is based on alkynylation of cysteines in complex proteomes using a clickable alkynyl benziodoxolone bearin ...

Wiley-Blackwell2015

First Measurement of Inclusive B -> X-s eta Decays

Mingkui Wang, Olivier Schneider, Chao Wang, Vladislav Balagura, Jean Wicht, Remi Léandre Albert Louvot

We report a first measurement of inclusive B -> X-s eta decays, where X-s is a charmless state with unit strangeness. The measurement is based on a pseudoinclusive reconstruction technique and uses a sample of 657 x 10(6)B (B) over bar pairs accumulated wi ...

2010

Search for B -> h nu(nu)over-bar decays with semileptonic tagging at Belle

Olivier Schneider, Yiming Li, Mingkui Wang, Chao Wang, Sun Hee Kim, Tara Nanut, Jun Yong Kim

We present the results of a search for the rare decays B -> h nu(nu) over bar, where h stands for K+, K-S(0), K*(+); K*(0); pi(+); pi(0), rho(+) and rho(0). The results are obtained with 772 x 10(6) B (B) over bar pairs collected with the Belle detector at ...

American Physical Society2017