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The role of the pion in the lineshape of the X(3872)

Related publications (27)

Bootstrapping QCD Using Pion Scattering Amplitudes

João Miguel Augusto Penedones Fernandes, Andrea Guerrieri

We consider the S-matrix bootstrap of four-dimensional scattering amplitudes with O(3) symmetry and no bound states. We explore the allowed space of scattering lengths which parametrize the interaction strength at threshold of the various scattering channe ...

2019

Azimuthal asymmetries of back-to-back pi(+/-) - (pi(0), eta, pi(+/-)) pairs in e(+) e(-) annihilation

Olivier Schneider, Sun Hee Kim, Tagir Aushev, Mingkui Wang, Chao Wang, Ke Huang, Ho Ling Li, Donghyun Kim, Yiming Li

This work reports the first observation of azimuthal asymmetries around the thrust axis in e(+)e(-) annihilation of pairs of back-to-back charged pions in one hemisphere, and pi(0) and eta mesons in the opposite hemisphere. These results are complemented b ...

American Physical Society2019

Measurements of CP asymmetries in charmless four-body Lambda(0)(b) and Xi(0)(b) decays

Christoph Frei, Peter Clarke, Jean Wicht, Aurelio Bay, Marc-Olivier Bettler, Cédric Potterat, François Fleuret, Tatsuya Nakada, Guido Haefeli, Niko Neufeld, Olivier Schneider, Hans Dijkstra, Frédéric Teubert, Gerhard Raven, Chitsanu Khurewathanakul, Frédéric Blanc, Axel Kuonen, Olivier Göran Girard, Liang Sun, Maxime Schubiger, Thibaud Humair, Hang Yin, Xiaoxue Han, Greig Alan Cowan, Paolo Durante, Jessica Prisciandaro, Guillaume Max Pietrzyk, Vladislav Balagura, Zhirui Xu, Bjorn Jozef Maria Robroek, Violaine Bellée, Mirco Dorigo, Yu Zheng, Maurizio Martinelli, Remy Jean Henry Albrecht, Tommaso Colombo, Guido Andreassi, Maxim Borisyak, Anton Petrov, Jian Wang, Liupan An, Preema Rennee Pais, Pavol Stefko, Yi Zhang, Maria Elena Stramaglia, Lei Zhang, Luca Pescatore, Vladimir Macko, Adam Davis, 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, Vitalii Lisovskyi, Luis Miguel Garcia Martin, Giovanni Carboni

Asearch forCP violation in charmless four-body decays of Lambda(0)(b) and Xi(0)(b) baryons with a proton and three charged mesons in the final state is performed. To cancel out production and detection charge-asymmetry effects, the search is carried out by ...

2019

Measurement of the CP-violating phase phi(s) from B-s(0) -> J/psi pi(+)pi(-) decays in 13 TeV pp collisions

Christoph Frei, Peter Clarke, Jean Wicht, Aurelio Bay, Minh Tâm Tran, Marc-Olivier Bettler, Cédric Potterat, 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, Achille Mauri, Maxime Schubiger, Mercedes Hannelore Rittmann-Frank, Thibaud Humair, Hang Yin, Xiaoxue Han, Greig Alan Cowan, Paolo Durante, Jessica Prisciandaro, Guillaume Max Pietrzyk, Vladislav Balagura, Zhirui Xu, Mark Tobin, Victor Coco, Violaine Bellée, Juan Federico Esteban Müller, Mirco Dorigo, Yu Zheng, Maurizio Martinelli, Tommaso Colombo, Guido Andreassi, 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, Zhipeng Tang, Pietro Marino, Tara Nanut, Federico Leo Redi, 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

Decays of B-s(0) and (B) over bar (0)(s) mesons into J/psi pi(+)pi(-) final states are studied in a data sample corresponding to 1.9 fb(-1) of integrated luminosity collected with the LHCb detector in 13 TeV pp collisions. A time-dependent amplitude analys ...

2019

Updated measurement of time-dependent CP-violating observables in B-s(0) -> J/psi 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, Achille Mauri, Maxime Schubiger, Thibaud Humair, Xiaoqing Zhou, Hang Yin, Xiaoxue Han, Greig Alan Cowan, Paolo Durante, Guillaume Max Pietrzyk, Vladislav Balagura, Zhirui Xu, Mark Tobin, Victor Coco, Violaine Bellée, Mirco Dorigo, Yu Zheng, Alexey Boldyrev, Simone Meloni, Maurizio Martinelli, Tommaso Colombo, Guido Andreassi, Michael Thompson McCann, Maxim Borisyak, Dipanwita Dutta, Plamen Hristov Hopchev, Anton Petrov, Jian Wang, Liupan An, Preema Rennee Pais, Pavol Stefko, Ho Ling Li, Yi Zhang, Surapat Ek-In, Maria Elena Stramaglia, Lei Zhang, Luca Pescatore, Vladimir Macko, Adam Davis, Zhipeng Tang, Pietro Marino, Tara Nanut, Federico Leo Redi, Michel De Cian, Sebastian Schulte, Veronica Sølund Kirsebom, Elena Graverini, Evgenii Shmanin, Yao Zhou, Xuan Li, Donal Patrick Hill, Federico Betti, Hossein Afsharnia, Renato Quagliani, Almagul Kondybayeva, Elisabeth Maria Niel, Aravindhan Venkateswaran, Feng Jiang, Wenyu Zhang, Yiming Li, Yi Wang, Vitalii Lisovskyi, Giovanni Carboni, Zheng Wang

The decay-time-dependent CP asymmetry in B0 s. J/. K + K-decays is measured using proton-proton collision data, corresponding to an integrated luminosity of 1.9 fb-1, collected with the LHCb detector at a centre-ofmass energy of 13 TeV in 2015 and 2016. Us ...

2019

Electronic Structure and Topology of Novel Materials

Antimo Marrazzo

The ground and excited electronic states are responsible for several materials' properties. The modern capability of rapidly solving on a computer the fundamental equations of relativistic or semi-relativistic quantum mechanics allows to compute the electr ...

EPFL2019

Electroweak baryogenesis above the electroweak scale

Riccardo Rattazzi, Luca Vecchi, Alfredo Glioti

Conventional scenarios of electroweak (EW) baryogenesis are strongly constrained by experimental searches for CP violation beyond the SM. We propose an alternative scenario where the EW phase transition and baryogenesis occur at temperatures of the order o ...

Springer Nature2019