AbstractWe have calculated all contributions to the energy levels of parapositronium at order mα7 coming from vacuum polarization corrections to processes involving virtual annihilation to two photons. This work is motivated by ongoing efforts to improve the experimental determination of the positronium ground-state hyperfine splitting
International audienceWe demonstrate the laser excitation of the n=3 state of positronium (Ps) in va...
Abstract. We have applied many-body theory methods to study the interaction of low-energy positrons ...
International audienceWe demonstrate the laser excitation of the n=3 state of positronium (Ps) in va...
AbstractWe have calculated all contributions to the energy levels of parapositronium at order mα7 co...
We present the complete result for the ${\cal O}(\alpha^7m_e)$ one-photon annihilation contribution ...
We present the complete result for the ${\cal O}(\alpha^7m_e)$ one-photon annihilation contribution ...
A hard three-loop correction to parapositronium energy levels of order mα7 is calculated. This nonlo...
Discrete symmetries play an important role in particle physics with violation of CP connected to the...
Discrete symmetries play an important role in particle physics with violation of CP connected to the...
Discrete symmetries play an important role in particle physics with violation of CP connected to the...
A detailed presentation is given of the analytic calculation of the single photon annihilation contr...
We have completed theoretical predictions for positronium energy levels through order alpha^6 m by t...
In this proccedings I report the complete result for the O(α7me) one-photon annihilation contri-buti...
The authors reconsider the calculation of the contribution to the positronium ground state splitting...
We present an analytic calculation of the m*alpha^6 recoil corrections to the hyperfine splitting (H...
International audienceWe demonstrate the laser excitation of the n=3 state of positronium (Ps) in va...
Abstract. We have applied many-body theory methods to study the interaction of low-energy positrons ...
International audienceWe demonstrate the laser excitation of the n=3 state of positronium (Ps) in va...
AbstractWe have calculated all contributions to the energy levels of parapositronium at order mα7 co...
We present the complete result for the ${\cal O}(\alpha^7m_e)$ one-photon annihilation contribution ...
We present the complete result for the ${\cal O}(\alpha^7m_e)$ one-photon annihilation contribution ...
A hard three-loop correction to parapositronium energy levels of order mα7 is calculated. This nonlo...
Discrete symmetries play an important role in particle physics with violation of CP connected to the...
Discrete symmetries play an important role in particle physics with violation of CP connected to the...
Discrete symmetries play an important role in particle physics with violation of CP connected to the...
A detailed presentation is given of the analytic calculation of the single photon annihilation contr...
We have completed theoretical predictions for positronium energy levels through order alpha^6 m by t...
In this proccedings I report the complete result for the O(α7me) one-photon annihilation contri-buti...
The authors reconsider the calculation of the contribution to the positronium ground state splitting...
We present an analytic calculation of the m*alpha^6 recoil corrections to the hyperfine splitting (H...
International audienceWe demonstrate the laser excitation of the n=3 state of positronium (Ps) in va...
Abstract. We have applied many-body theory methods to study the interaction of low-energy positrons ...
International audienceWe demonstrate the laser excitation of the n=3 state of positronium (Ps) in va...