Electron-positron collisions (FCC-ee) up to an energy of 365 GeV provide the ultimate precision with studies of Higgs boson couplings, mass, total width and CP parameters, as well as searches for exotic and invisible decays.

Higgs measurements at the Future Circular Colliders

10.3103/S002713491901003X

This article presents the results of studies of the associated production of the Higgs boson and a heavy fermion pair in arbitrarily polarized electron-positron collisions: $${e^ - }{e^ + } \to {H_{{\rm{SM}}}}f \bar{f}$$e−e+→HSMff¯, $${e^ - }{e^ + } \to Hf \bar{f}$$e−e+→Hff¯, $${e^ - }{e^ + } \to hf \bar{f}$$e−e+→hff¯, and $${e^ - }{e^ + } \to Af \bar{f}$$e−e+→Aff¯.

Associated Production of a Higgs Boson and Heavy Fermion Pair in e−e+-Collisions

A large, world-wide community of physicists is working to realise an exceptional physics program of energy-frontier, electron-positron collisions with the International Linear Collider (ILC).

The International Linear Collider: A Global Project

10.1088/1757-899X/502/1/012084

A 2T, 6m long, 4m free bore superconducting solenoid is being designed for the so-called IDEA detector for probing electron-positron collisions at the proposed Future Circular Collider at CERN.

Design of an ultra-Thin, radiation thickness minimized, metallic cryostat for a 2T/4m free bore detector solenoid

10.1016/J.NIMA.2018.09.003

The accelerator has successfully completed the first phase of commissioning in 2016 and the first electron–positron collisions in Belle II took place in April 2018.

The Belle II vertex detector integration

10.1103/PhysRevD.100.075006

A complete one-loop prediction for the single production of the neutral Higgs bosons in association with a photon in electron-positron collisions is presented in the framework the minimal supersymmetric standard model (MSSM), paying special attention to the individual contribution from each type of diagram.

Associated production of Higgs boson with a photon at electron-positron colliders

10.1103/PhysRevD.101.031102

93  fb-1 data sample of electron-positron collisions taken with the BESIII detector at a center-of-mass energy of 3.

Search for baryon and lepton number violating decays $D^+\to\bar\Lambda(\bar\Sigma^0)e^+$ and $D^+\to\Lambda(\Sigma^0)e^+$

10.1051/EPJCONF/201921209001

KLOE and KLOE-2 have collected together the largest sample of electron-positron collisions at an energy equal to the φ -meson mass, corresponding to about 2.

Recent results on Kaon Physics at KLOE-2

As a demonstration of our technique, we calculate the photon contribution to the total cross section of the production of two $Q\bar Q$ pairs in the electron-positron collisions.

$\epsilon$-regular basis for non-polylogarithmic multiloop integrals and total cross section of the process $e^+e^-\to 2(Q\bar Q)$

10.1016/j.nuclphysa.2018.12.008

We discuss here how this can help to explain open puzzles such as the success of thermal models in electron-positron collisions.

Entanglement and thermalization

We report elastic integral and differential cross sections for positron collisions with pyrazine C4H4N2, for energies up to 10 eV.

Elastic Scattering of Slow Positrons by Pyrazine.

10.1038/s42254-019-0082-y

These issues are addressed by the Beijing Spectrometer III (BESIII) experiment at the Beijing Electron–Positron Collider II (BEPCII) storage ring, which for the past decade has been studying particles produced in electron–positron collisions in the tau-charm energy-threshold region, and has by now accumulated the world’s largest dataset that enables searches for non-standard hadrons, weak decays of the charmed particles and new physics phenomena beyond the standard model.

The BESIII physics programme

10.1007/s11182-019-01810-z

The production of a Higgs boson H (h; A) and a heavy fermion pair in arbitrarily polarized electron-positron collisions is investigated for the minimal supersymmetric model.

Production of an H( h; A) Boson and a Heavy Fermion Pair in Polarized e - e + -Collisions (I)