Statistical Combination of ATLAS Run 2 Searches for Charginos and Neutralinos at the LHC
G. Aad, B. Abbott, K. Abeling, Nils Julius Abicht, S. H. Abidi, A. Aboulhorma, H. Abramowicz, Henso Abreu, Y. Abulaiti, B. S. Acharya, C. Adam Bourdarios, L. Adamczyk, S. V. Addepalli, Matt Addison, J. Adelman, Aytul Adiguzel, T. Adye, A. A. Affolder, Yoav Afik, M. N. Agaras, J. Agarwala, A. Aggarwal, C. Agheorghiesei, A. Ahmad, F. Ahmadov, W. S. Ahmed, Sudha Ahuja, X. Ai, G. Aielli, A. Aikot, M. Ait Tamlihat, B. Aitbenchikh, I. Aizenberg, M. Akbiyik, T. P. A. Åkesson, A. V. Akimov, Daiya Akiyama, Nilima Nilesh Akolkar, S. Aktas, K. Al Khoury, G. L. Alberghi, J. Albert, P. Albicocco, Guillaume Lucas Albouy, S. Alderweireldt, Z. L. Alegria, M. Aleksa, I. N. Aleksandrov, C. Alexa, T. Alexopoulos, Fabrizio Alfonsi, Malte Algren, M. Alhroob, B. Ali, Hanadi Ali, S. Ali, Samuel William Alibocus, M. Aliev, G. Alimonti, W. Alkakhi, C. Allaire, Benedict Allbrooke, Julia Frances Allen, C. Flores, P. P. Allport, Alberto Aloisio, F. Alonso, C. Alpigiani, M. Alvarez Estevez, A. Álvarez Fernández, Mario Alves Cardoso, M. G. Alviggi, M. Aly, Yara Do Amaral Coutinho, A. Ambler, Christoph Amelung, Maximilian Amerl, Christoph Ames, D. Amidei, S. P. Amor Dos Santos, K. R. Amos, V. Ananiev, Christos Anastopoulos, T. Andeen, J. K. Anders, S. Y. Andrean, A. Andreazza, Stylianos Angelidakis, A. Angerami, A. V. Anisenkov, A. Annovi, C. Antel, M. T. Anthony, E. Antipov, Mario Antonelli, Fabio Anulli, M. Aoki, T. Aoki, J. A. Aparisi Pozo, M. A. Aparo
Abstract
Statistical combinations of searches for charginos and neutralinos using various decay channels are performed using 139 fb^{-1} of pp collision data at sqrt[s]=13 TeV with the ATLAS detector at the Large Hadron Collider. Searches targeting pure-wino chargino pair production, pure-wino chargino-neutralino production, or Higgsino production decaying via standard model W, Z, or h bosons are combined to extend the mass reach to the produced supersymmetric particles by 30-100 GeV. The depth of the sensitivity of the original searches is also improved by the combinations, lowering the 95% C.L. cross-section upper limits by 15%-40%.