Concept

Antimatière

Publications associées (30)

AMS-100: The next generation magnetic spectrometer in space - An international science platform for physics and astrophysics at Lagrange point 2

The next generation magnetic spectrometer in space, AMS-100, is designed to have a geometrical acceptance of 100 m(2) sr and to be operated for at least ten years at the Sun-Earth Lagrange Point 2. Compared to existing experiments, it will improve the sens ...

2019

Sensitivity of the SHiP experiment to Heavy Neutral Leptons

Lesya Shchutska, Aurelio Bay, Elena Graverini, Florian Maria Wurm, Guido Haefeli, Mikhail Chapochnikov, Alexey Boyarsky, Sun Hee Kim, Federico Leo Redi, Oleg Ruchayskiy, Nikolaos Charitonidis, Maria Elena Stramaglia, Inar Timiryasov, Adriano Pastore, Nathalie Sophie Adeline Serra, Eirini Koukovini Platia, Jean-Loup Tastet, Johannes Richard Cornelis Geerit Kruis, Ekaterina Kuznetsova, Hans Dijkstra, Erica Manfredi, Sargis Hakobyan, Anton Petrov, Sergei Smirnov

Heavy Neutral Leptons (HNLs) are hypothetical particles predicted by many extensions of the Standard Model. These particles can, among other things, explain the origin of neutrino masses, generate the observed matter-antimatter asymmetry in the Universe an ...

Springer Nature2019

Bose-Einstein correlations and b(b)over-bar correlations in pp collisions with LHCb

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

Bose-Einstein correlations for same-sign charged pions and kinematic b (b) over bar correlations in proton-proton collisions at a center-of-mass energy of 7 and 8 TeV are studied by the LHCb experiment. The dependence of Bose-Einstein correlation parameter ...

2019

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

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

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

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

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

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

Parameter space of baryogenesis in the nu MSM

Mikhail Chapochnikov, Inar Timiryasov, Shintaro Eijima

The Standard Model accompanied with two right-handed neutrinos with masses below the weak scale can explain the observed baryon asymmetry of the Universe. Moreover, this model is at least partially testable in the forthcoming experiments such as NA62, SHiP ...

Springer Nature2019

Ultrafast generation and control of an electron vortex beam via chiral plasmonic near fields

Fabrizio Carbone, Ivan Madan, Giovanni Maria Vanacore, Enrico Pomarico, Gabriele Berruto, Ido Kaminer, Brett Eugene Barwick, Ebrahim Karimi

Vortex-carrying matter waves, such as chiral electron beams, are of significant interest in both applied and fundamental science. Continuous-wave electron vortex beams are commonly prepared via passive phase masks imprinting a transverse phase modulation o ...

2019

Observation of the 1S-2P Lyman-alpha transition in antihydrogen

Shirit Cohen

In 1906, Theodore Lyman discovered his eponymous series of transitions in the extreme-ultraviolet region of the atomic hydrogen spectrum(1,2). The patterns in the hydrogen spectrum helped to establish the emerging theory of quantum mechanics, which we now ...

Nature Publishing Group2018

Metrological Characterization of Nuclear Magnetic Resonance Markers for Real-Time Field Control of the CERN ELENA Ring Dipoles

Anthony Jean Beaumont, Marco Buzio

Field markers in particle accelerators are used to provide a digital trigger when the magnetic field reaches a preset threshold. This paper describes the results of a test campaign performed on the extra low energy antiproton decelerator's main bending dip ...

2018

Measurement of Antiproton Production in p-He Collisions at root S-NN=110 GeV

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

The cross section for prompt antiproton production in collisions of protons with an energy of 6.5 TeV incident on helium nuclei at rest is measured with the LHCb experiment from a data set corresponding to an integrated luminosity of 0.5 nb(-1). The target ...

2018