Publication

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

Publications associées (27)

Search for CP violating top quark couplings in pp collisions at √s=13 TeV

Rakesh Chawla, Arvind Shah, Andrea Rizzi, Matthias Finger, Bandeep Singh, Federica Legger, Thomas Berger, Jian Zhao, João Miguel das Neves Duarte, Tagir Aushev, Hua Zhang, Alexis Kalogeropoulos, Yixing Chen, Tian Cheng, Ioannis Papadopoulos, Valérie Scheurer, Meng Xiao, Wei Sun, Maren Tabea Meinhard, Qian Wang, Michele Bianco, Varun Sharma, Jessica Prisciandaro, Joao Varela, Francesco Fiori, Sourav Sen, Ashish Sharma, Seungkyu Ha, David Vannerom, Csaba Hajdu, Sanjeev Kumar, Sebastiana Gianì, Kun Shi, Abhisek Datta, Miao Hu, Siyuan Wang, Peter Hansen, Muhammad Waqas, Dipanwita Dutta, Anton Petrov, Jian Wang, Yi Zhang, Muhammad Ansar Iqbal, Viktor Khristenko, Yong Yang, Muhammad Ahmad, Donghyun Kim, Matthias Wolf, Paolo Ronchese, Matthias Weber, Muhammad Shoaib, Vineet Kumar, Kai Yi, Ji Hyun Kim, Andromachi Tsirou, Georgios Anagnostou, Jan Steggemann, Konstantin Androsov, Ajay Kumar, Pratyush Das, Milos Dordevic, Werner Lustermann, Ali Harb, Lukas Layer, Giorgia Rauco, Yiming Li, Ioannis Evangelou, Rajat Gupta, Xiao Wang, Davide Di Croce, Yi Wang, Hui Wang, Xin Chen, Wei Li, Leonardo Cristella, Wei Shi, Zheng Wang, Ekaterina Kuznetsova, Jing Li, Tao Huang

Results are presented from a search for CP violation in top quark pair production, using proton-proton collisions at a center-of-mass energy of 13TeV. The data used for this analysis consist of final states with two charged leptons collected by the CMS exp ...

Springer Nature2023

Observation of the Rare Decay of the η Meson to Four Muons

Rakesh Chawla, Andrea Rizzi, Matthias Finger, Federica Legger, Matteo Galli, Sun Hee Kim, João Miguel das Neves Duarte, Tagir Aushev, Hua Zhang, Alexis Kalogeropoulos, Yixing Chen, Tian Cheng, Ioannis Papadopoulos, Gabriele Grosso, Valérie Scheurer, Meng Xiao, Qian Wang, Michele Bianco, Varun Sharma, Joao Varela, Sourav Sen, Ashish Sharma, Seungkyu Ha, David Vannerom, Csaba Hajdu, Sanjeev Kumar, Sebastiana Gianì, Kun Shi, Abhisek Datta, Siyuan Wang, Anton Petrov, Jian Wang, Yi Zhang, Muhammad Ansar Iqbal, Yong Yang, Xin Sun, Muhammad Ahmad, Donghyun Kim, Matthias Wolf, Anna Mascellani, Paolo Ronchese, Kai Yi, Ji Hyun Kim, Andromachi Tsirou, Georgios Anagnostou, Jan Steggemann, Konstantin Androsov, Ajay Kumar, Pratyush Das, Milos Dordevic, Werner Lustermann, Lukas Layer, Yiming Li, Ioannis Evangelou, Rajat Gupta, Xiao Wang, Hui Wang, Xin Chen, Wei Li, Zheng Wang, Jing Li, Tao Huang

A search for the rare eta -> mu(+)mu(-)mu(+)mu(-) double-Dalitz decay is performed using a sample of proton-proton collisions, collected by the CMS experiment at the CERN LHC with high-rate muon triggers during 2017 and 2018 and corresponding to an integra ...

Amer Physical Soc2023

Model-independent measurement of charm mixing parameters in D0 -> K0S pi+ pi- decays

Surapat Ek-In

This thesis presents a measurement of charm mixing and CP-violation parameters using D0 -> K0S pi+ pi- decays. These mixing parameters include the mass and decay-width differences of the mass eigenstates of the D0-D0bar system. A search for Charge-Parity v ...

EPFL2022

Test of lepton flavor universality and search for lepton flavor violation in B -> Kll decays

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

We present measurements of the branching fractions for the decays B -> K mu(+)mu(-) and B -> Ke(+)e(-), and their ratio (R-K), using a data sample of 711 fb(-1) that contains 772 x 10(6) B (B) over bar events. The data were collected at the Gamma(4S) reson ...

Springer Nature2021

Measurement of R(D) and R(D*) with a Semileptonic Tagging Method

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

The experimental results on the ratios of branching fractions R(D) = B((B) over bar -> D tau(-)(nu) over bar (tau))/B((B) over bar -> Dl(-)(nu) over bar (e)) and R(D*) = B((B) over bar -> Dtau(-)(nu) over bar (tau))/B((B) over bar -> Dtau(-)(nu) over bar ...

2020

Dalitz analysis of D-0 -> K- pi(+)eta decays at Belle

Olivier Schneider, Sun Hee Kim, Tagir Aushev, Mingkui Wang, Chao Wang, Yixing Chen, Donghyun Kim, Lei Li, Yiming Li

We present the results of the first Dalitz plot analysis of the decay D-0 -> K-pi(+)eta. The analysis is performed on a data set corresponding to an integrated luminosity of 953 fb(-1) collected by the Belle detector at the asymmetric-energy e(+)e(-) KEKB ...

American Physical Society2020

Measurements of branching fraction and direct CP asymmetry in B-+/- -> (KSKSK +/-)-K-0-K-0 and a search for B-+/- -> (KSKS0)-K-0 pi(+/-)

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

We study charmless hadronic decays of charged B mesons to the final states (KSKSK +/-)-K-0-K-0 and (KSKS0)-K-0 pi(+/-) using a 711 fb(-1) data sample that contains 772 x 10(6) B (B) over bar pairs and was collected at the Upsilon(4S) resonance with the Bel ...

American Physical Society2019

Amplitude Analysis of B-+/- -> pi(K+K-)-K-+/- Decays

Christoph Frei, Peter Clarke, Aurelio Bay, Minh Tâm Tran, Marc-Olivier Bettler, François Fleuret, Tatsuya Nakada, Guido Haefeli, Niko Neufeld, Olivier Schneider, Hans Dijkstra, Frédéric Teubert, Gerhard Raven, Mingkui Wang, Chitsanu Khurewathanakul, Frédéric Blanc, Matthew Needham, Axel Kuonen, Olivier Göran Girard, Liang Sun, Maxime Schubiger, Brice Emile Maurin, Thibaud Humair, Hang Yin, Xiaoxue Han, Greig Alan Cowan, Paolo Durante, Jessica Prisciandaro, Guillaume Max Pietrzyk, Matthieu Philippe Luther Marinangeli, Vladislav Balagura, Lino Ferreira Lopes, Zhirui Xu, Mark Tobin, Victor Coco, Violaine Bellée, Mirco Dorigo, Yu Zheng, Vincenzo Battista, Maurizio Martinelli, Tommaso Colombo, Guido Andreassi, Maxim Borisyak, Dipanwita Dutta, Plamen Hristov Hopchev, Anton Petrov, Jian Wang, Liupan An, Preema Rennee Pais, Pavol Stefko, Yi Zhang, Maria Elena Stramaglia, Lei Zhang, Luca Pescatore, Vladimir Macko, Adam Davis, Zhipeng Tang, Pietro Marino, Tara Nanut, Ana Bárbara Rodrigues Cavalcante, Federico Leo Redi, Michel De Cian, Sebastian Schulte, Veronica Sølund Kirsebom, Elena Graverini, Maria Vieites Diaz, Evgenii Shmanin, Donal Patrick Hill, Federico Betti, Renato Quagliani, Aravindhan Venkateswaran, Feng Jiang, Wenyu Zhang, Yiming Li, Yi Wang, Vitalii Lisovskyi, Luis Miguel Garcia Martin, Giovanni Carboni, Zheng Wang

The first amplitude analysis of the B-+/- -> pi(K+K-)-K-+/- decay is reported based on a data sample corresponding to an integrated luminosity of 3.0 fb(-1) of pp collisions recorded in 2011 and 2012 with the LHCb detector. The data are found to be best de ...

2019

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

Christoph Frei, Peter Clarke, Jean Wicht, Aurelio Bay, Minh Tâm Tran, Marc-Olivier Bettler, Cédric Potterat, François Fleuret, Josiane Angèle Charlotte Smith-Clerc, Tatsuya Nakada, Guido Haefeli, Niko Neufeld, Olivier Schneider, Hans Dijkstra, Frédéric Teubert, Gerhard Raven, Mingkui Wang, Chitsanu Khurewathanakul, Frédéric Blanc, Matthew Needham, Nathalie Sophie Adeline Serra, Axel Kuonen, Olivier Göran Girard, Liang Sun, Achille Mauri, Maxime Schubiger, Thibaud Humair, Hang Yin, Xiaoxue Han, Luis Alberto Granado Cardoso, Greig Alan Cowan, Paolo Durante, Jessica Prisciandaro, Guillaume Max Pietrzyk, Matthieu Philippe Luther Marinangeli, Daniel Hugo Cámpora Pérez, Vladislav Balagura, Lino Ferreira Lopes, Zhirui Xu, Mark Tobin, Victor Coco, Violaine Bellée, Mirco Dorigo, Sebastiana Gianì, Yu Zheng, Sergi Aguacil Moreno, Maurizio Martinelli, Tommaso Colombo, Guido Andreassi, Maxim Borisyak, Dipanwita Dutta, Plamen Hristov Hopchev, Anton Petrov, Jian Wang, Liupan An, Preema Rennee Pais, Pavol Stefko, Yi Zhang, Maria Elena Stramaglia, Lei Zhang, Luca Pescatore, Vladimir Macko, Adam Davis, Zhipeng Tang, Pietro Marino, Federico Leo Redi, Michel De Cian, Elena Graverini, Maria Vieites Diaz, Donal Patrick Hill, Federico Betti, Renato Quagliani, Aravindhan Venkateswaran, Feng Jiang, Yiming Li, Yi Wang, Vitalii Lisovskyi, Luis Miguel Garcia Martin, Giovanni Carboni

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

Observation of B+ -> p(Lambda)over-barK(+) K- and B+ -> (p)over-bar Lambda K+ K+

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

We report the study of B+ -> p (Lambda) over barK(+)K(-) and B+ -> (p) over barK(+)K(+) decays using a 772 x 10(6) B (B) over bar pair data sample recorded on the gamma(4S) resonance with the Belle detector at KEKB. The following branching fractions are me ...

American Physical Society2019

Measurements of the branching fractions B(B- -> (Lambda)over-bar(c)(-)Xi'(0)(c)), B(B- -> (Lambda)over-bar(c)(-)Xi(c )(2645)(0)) and B(B- -> (Lambda)over-bar(c)(-)Xi(c)(2790)(0))

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

Using the data sample of 711 fb(-1) of Upsilon(4S) on-resonance data taken by the Belle detector at the KEKB asymmetric-energy electron-positron collider, we present the first measurements of branching fractions of the decays B- -> (Lambda) over bar (-)(c) ...

American Physical Society2019

Search for the B -> Y(4260)K, Y(4260) -> J/psi pi(+)pi(-) decays

Olivier Schneider, Sun Hee Kim, Tagir Aushev, Mingkui Wang, Chao Wang, Yong Chan Choi, Kyung Taek Cho, Jun Yong Kim, Mithilesh Nayak, Linlin Cao, Carsten Hao Ye Chong, Donghyun Kim, Lei Li, Ji Hyun Kim, Yiming Li, Xiao Wang

We report the results of a search for the B -> Y(4260)K, Y(4260) -> J/psi pi(+)pi thorn p-decays. This study is based on a data sample corresponding to an integrated luminosity of 711 fb(-1), collected at the Upsilon(4S) resonance with the Belle detector a ...

American Physical Society2019

Measurements of isospin asymmetry and difference of direct CP asymmetries in inclusive B -> X-s gamma decays

Olivier Schneider, Sun Hee Kim, Steve Michel Berger, Tagir Aushev, Mingkui Wang, Chao Wang, Yong Chan Choi, Arnaud Michel Gelb, Kyung Taek Cho, Jun Yong Kim, Linlin Cao, Carsten Hao Ye Chong, Tara Nanut, Donghyun Kim, Martin Lubej, Chang-Hyun Park, Yifei Guan, Lei Li, Ji Hyun Kim, Yiming Li

We report measurements of isospin asymmetry Delta(0-) and difference of direct CP asymmetries Delta A(CP) between charged and neutral B -> X-s gamma decays. This analysis is based on the data sample containing 772 x 10(6)B (B) over bar pairs that was colle ...

American Physical Society2019

First Measurements of Absolute Branching Fractions of the Xi(0)(c) Baryon at Belle

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

We present the first measurements of absolute branching fractions of Xi(0)(c) decays into Xi(-)pi(+), Lambda K-pi(+), and pK(-)K(-)pi(+) final states. The measurements are made using a dataset comprising (772 +/- 11) x 10(6) B (B) over bar pairs collected ...

2019

Measurement of the Charm-Mixing Parameter y(CP)

Ian William Marison, Mai Tu Xuan, Christoph Frei, Peter Clarke, Basile Schäli, Jean Wicht, Aurelio Bay, Minh Tâm Tran, Marc-Olivier Bettler, Cédric Potterat, François Fleuret, Luc Henry, Tatsuya Nakada, Guido Haefeli, Gang Yu, Niko Neufeld, Olivier Schneider, Hans Dijkstra, Valérie Jeanne Thérèse Renaudin-Schouler, Frédéric Teubert, Gerhard Raven, Mingkui Wang, Marilisa Neri, Alessio Ferrari, Léonard Yannick Maurice Eymann, Chitsanu Khurewathanakul, Frédéric Blanc, Matthew Needham, Nathalie Sophie Adeline Serra, Axel Kuonen, Olivier Göran Girard, Nandita Aggarwal, Liang Sun, Maxime Schubiger, Brice Emile Maurin, Adriano Pastore, Thibaud Humair, Hang Yin, Xiaoxue Han, Greig Alan Cowan, Paolo Durante, Craig Matthew Smith, Xiao Yuan, Jessica Prisciandaro, Guillaume Max Pietrzyk, Matthieu Philippe Luther Marinangeli, Alexandra Bondarenko, Daniel Gallichan, Vladislav Balagura, Zhirui Xu, Mark Tobin, Victor Coco, Violaine Bellée, Juan Federico Esteban Müller, Mirco Dorigo, Yu Zheng, Vincenzo Battista, Maurizio Martinelli, Matteo Fontana, Tommaso Colombo, Guido Andreassi, Severin Stähly, Michael Thompson McCann, Maxim Borisyak, Dipanwita Dutta, Plamen Hristov Hopchev, Anton Petrov, Jian Wang, Liupan An, Preema Rennee Pais, Pavol Stefko, Yi Zhang, Maria Elena Stramaglia, Lei Zhang, Luca Pescatore, Vladimir Macko, Adam Davis, Sattar Akbari Nakhjavani, Zhipeng Tang, Pietro Marino, Simon Van Mulders, Tara Nanut, Federico Leo Redi, Laia Castilla Amorós, Michel De Cian, Elena Graverini, Maria Vieites Diaz, Evgenii Shmanin, Donal Patrick Hill, Federico Betti, Renato Quagliani, Aravindhan Venkateswaran, Feng Jiang, Wenyu Zhang, Yiming Li, Yi Wang, Vitalii Lisovskyi, Luis Miguel Garcia Martin, Giovanni Carboni, Zheng Wang

A measurement of the charm-mixing parameter Y-CP using D-0 -> K+K-, D-0 -> pi(+)pi(-), and D-0 -> K-pi(+)decays is reported. The D-0 mesons are required to originate from semimuonic decays of B- and (B) over bar (0)mesons. These decays are partially recons ...

2019

Measurement of branching fraction and final-state asymmetry for the (B)over-bar(0) -> (KSK -/+)-K-0 pi(+/-) decay

Olivier Schneider, Sun Hee Kim, Tagir Aushev, Mingkui Wang, Chao Wang, Ke Huang, Jun Yong Kim, Donghyun Kim, Lei Li, Ji Hyun Kim, Yiming Li, Xiao Wang

We report a measurement of the branching fraction and final-state asymmetry for the (B) over bar -> (KSK -/+)-K-0 pi(+/-) decays. The analysis is based on a data sample of 711 fb(-1) collected at the gamma(4S) resonance with the Belle detector at the KEKB ...

American Physical Society2019

First Evidence for cos 2 beta > 0 and Resolution of the Cabibbo-Kobayashi-Maskawa Quark-Mixing Unitarity Triangle Ambiguity

François Bianchi, Roberto Gargiani, Olivier Schneider, Sun Hee Kim, Tagir Aushev, Gerhard Raven, Mingkui Wang, Marilisa Neri, Liang Sun, Chao Wang, Taoufiq Harach, Songmei Wu, Yong Chan Choi, Greig Alan Cowan, Alexandra Bondarenko, Lorenzo Vitale, Seyed Sina Mirrazavi Salehian, Arnaud Michel Gelb, Aaron James Rossini, Amaury Robert Dame, Gaétan Charles Antoine Giriat, Jun Yong Kim, Mithilesh Nayak, Jiayun Shen, Armend Gazmeno Hati, John Wilson, Tara Nanut, Donghyun Kim, Martin Lubej, Lei Li, Ji Hyun Kim, Yiming Li

We present first evidence that the cosine of the CP-violating weak phase 2 beta is positive, and hence exclude trigonometric multifold solutions of the Cabibbo-Kobayashi-Maskawa (CKM) Unitarity Triangle using a time-dependent Dalitz plot analysis of B-0 -> ...

2018

Search for B- -> mu(-)(nu)over-bar(mu) Decays at the Belle Experiment

Olivier Schneider, Sun Hee Kim, Tagir Aushev, Joo Yeon Kim, Mingkui Wang, Chao Wang, Timothy Chi Hin Liew, Yong Chan Choi, Takayuki Yamashita, Seyed Sina Mirrazavi Salehian, Dipanwita Dutta, Jun Yong Kim, Tara Nanut, Donghyun Kim, Martin Lubej, Chang-Hyun Park, Ji Hyun Kim

We report the results of a search for the rare, purely leptonic decay B- -> mu(-)(nu) over bar (mu) performed with a 711 fb(-1) data sample that contains 772 x 10(6) B (B) over bar pairs, collected near the Upsilon(4S) resonance with the Belle detector at ...

2018

Measurement of the decays Lambda c -> Sigma pi pi at Belle

Roberto Gargiani, Olivier Schneider, Sun Hee Kim, Tagir Aushev, Mingkui Wang, Chao Wang, Taoufiq Harach, Yong Chan Choi, Seyed Sina Mirrazavi Salehian, Arnaud Michel Gelb, Dipanwita Dutta, Gaétan Charles Antoine Giriat, Jun Yong Kim, Jiayun Shen, Tara Nanut, Donghyun Kim, Martin Lubej, Lei Li, Ji Hyun Kim, Yiming Li, Xiao Wang

We report measurements of the branching fractions of the decays Lambda(+)(c) -> Sigma(+)pi(-)pi(+), Lambda(+)(c) -> Sigma(0)pi(+)pi(0) and Lambda(+)(c) -> Sigma(+)pi(0)pi(0) relative to the reference channel Lambda(+)(c) -> pK(-)p(+). The analysis is based ...

American Physical Society2018

Measurement of the CKM angle gamma using B-+/- -> DK +/- with D -> K-S(0)pi(+)pi(-), (KSK+K-)-K-0 decays

Ian William Marison, Mai Tu Xuan, Christoph Frei, Peter Clarke, Basile Schäli, Jean Wicht, Aurelio Bay, Minh Tâm Tran, Marc-Olivier Bettler, Cédric Potterat, François Fleuret, Luc Henry, Tatsuya Nakada, Guido Haefeli, Niko Neufeld, Olivier Schneider, Hans Dijkstra, Valérie Jeanne Thérèse Renaudin-Schouler, Frédéric Teubert, Gerhard Raven, Mingkui Wang, Marilisa Neri, Alessio Ferrari, Léonard Yannick Maurice Eymann, Chitsanu Khurewathanakul, Frédéric Blanc, Matthew Needham, Nathalie Sophie Adeline Serra, Axel Kuonen, Olivier Göran Girard, Nandita Aggarwal, Liang Sun, Maxime Schubiger, Brice Emile Maurin, Adriano Pastore, Thibaud Humair, Hang Yin, Xiaoxue Han, Greig Alan Cowan, Paolo Durante, Craig Matthew Smith, Xiao Yuan, Guillaume Max Pietrzyk, Matthieu Philippe Luther Marinangeli, Thomas Jean Julien Fussinger, Alexandra Bondarenko, Daniel Gallichan, Vladislav Balagura, Zhirui Xu, Victor Coco, Violaine Bellée, Juan Federico Esteban Müller, Mirco Dorigo, Sebastiana Gianì, Yu Zheng, Vincenzo Battista, Maurizio Martinelli, Matteo Fontana, Tommaso Colombo, Guido Andreassi, Severin Stähly, Michael Thompson McCann, Maxim Borisyak, Dipanwita Dutta, Plamen Hristov Hopchev, Anton Petrov, Jian Wang, Liupan An, Preema Rennee Pais, Pavol Stefko, Yi Zhang, Maria Elena Stramaglia, Lei Zhang, Luca Pescatore, Vladimir Macko, Adam Davis, Sattar Akbari Nakhjavani, Zhipeng Tang, Pietro Marino, Simon Van Mulders, Tara Nanut, Federico Leo Redi, Laia Castilla Amorós, Michel De Cian, Elena Graverini, Maria Vieites Diaz, Evgenii Shmanin, Donal Patrick Hill, Federico Betti, Renato Quagliani, Aravindhan Venkateswaran, Feng Jiang, Wenyu Zhang, Yi Wang, Vitalii Lisovskyi, Luis Miguel Garcia Martin, Giovanni Carboni, Zheng Wang

A binned Dalitz plot analysis of B-+/- -> DK +/- decays, with D -> K-S(0)pi(+)pi(-) and D -> (KSK+K-)-K-0, is used to perform a measurement of the CP-violating observables x(+/-) and y(+/-), which are sensitive to the Cabibbo-Kobayashi-Maskawa angle gamma. ...

Springer Nature2018