Search for charginos nearly mass-degenerate with the lightest neutralino

@inproceedings{Heister2018SearchFC,
  title={Search for charginos nearly mass-degenerate with the lightest neutralino},
  author={Angelien J.G.M. Heister and St. Schael and Renaud Barate and R. Bruneli{\`e}re and Ida de Bonis and David Decamp and Corinne Goy and S. J{\'e}z{\'e}quel and JonathanM. Lees and Fernando Casanovas Mart{\'i}n and Edeltraut Merle and M. N. Minard and Bohena Pietrzyk and Benjamin Trocme and Gerard Boix and Sebasti{\'a}n Mario Ezequiel Bravo and M. Herranz Casado and Mokhtar Chmeissani and Julia Mart{\'i}nez Crespo and Eduardo Fern{\'a}ndez and M. Fernandez-Bosman and Ll. Garrido and Eugeni Grauges and Jose-Luis L{\'o}pez and Mercedes Zapatero Mart{\'i}nez and Gabriel Merino and Ramon Miquel and Ll. M. Mir and Andr{\'e}s Sebasti{\'a}n Orozco Pacheco and David Paneque and Heliodoro Sancho Ruiz and Anna Colaleo and Donato Creanza and Nicola De Filippis and Maurizio De Palma and Giuseppe Iaselli and Giuliano Maggi and M. Maggi and Stefano Nuzzo and Polizel Ranieri and Giuseppe Raso and Flavia Ruggieri and Giulio Selvaggi and Lucia Silvestris and Piergiulio Tempesta and alessia. tricomi and Giuseppe Zito and Paolo Azzurri and Timothy L. Barklow and Oliver Buchmueller and Marco Cattaneo and Francesco Cerutti and Barbara Clerbaux and Hans Drevermann and Roger Forty and Markus Frank and Fabiola Gianotti and Tony Greening and J{\o}rn Bindslev Hansen and Jason Harvey and D. Hutchcroft and Patrick Janot and Bohuslav Jost and Marumi M. Kado and Pere Mato and A. Moutoussi and Florence Ranjard and Luigi Rolandi and S. Dessagne and Alain Falvard and Dimitri Fayolle and Paolo Gay and Stephane Monteil and Dominique Pallin and J. M. Pascolo and Pascal Perret and A.. and Roug{\'e} and M.. and Swynghedauw and Giovanni Mannocchi},
  year={2018}
}
A search for charginos nearly mass degenerate with the lightest neutralino is performed with the data collected by the ALEPH detector at LEP, at centre-ofmass energies between 189 and 209 GeV, corresponding to an integrated luminosity of 628 pb−1. The analysis is based on the detection of isolated and energetic initial state radiation photons, produced in association with chargino pairs whose decay products have little visible energy. The number of candidate events observed is in agreement with… CONTINUE READING

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