TY  - JOUR
AU  - ATLAS Collaboration (Aad, G. et al
AU  - Aparisi Pozo, J. A.
AU  - Bailey, A. J.
AU  - Cabrera Urban, S.
AU  - Cardillo, F.
AU  - Castillo, F. L.
AU  - Castillo Gimenez, V.
AU  - Costa, M. J.
AU  - Escobar, C.
AU  - Estrada Pastor, O.
AU  - Ferrer, A.
AU  - Fiorini, L.
AU  - Fullana Torregrosa, E.
AU  - Fuster, J.
AU  - Garcia, C.
AU  - Garcia Navarro, J. E.
AU  - Gonzalez de la Hoz, S.
AU  - Gonzalvo Rodriguez, G. R.
AU  - Guerrero Rojas, J. G. R.
AU  - Higon-Rodriguez, E.
AU  - Lacasta, C.
AU  - Lozano Bahilo, J. J.
AU  - Mamuzic, J.
AU  - Marti-Garcia, S.
AU  - Martinez Agullo, P.
AU  - Mitsou, V. A.
AU  - Moreno Llacer, M.
AU  - Poveda, J.
AU  - Prades Ibañez, A.
AU  - Rodriguez Bosca, S.
AU  - Ruiz-Martinez, A.
AU  - Sabatini, P.
AU  - Salt, J.
AU  - Santra, A.
AU  - Sayago Galvan, I.
AU  - Soldevila, U.
AU  - Sanchez, J.
AU  - Torro Pastor, E.
AU  - Valero, A.
AU  - Valls Ferrer, J. A.
AU  - Villaplana Perez, M.
AU  - Vos, M.
PY  - 2021
DA  - 2021//
TI  - Search for bottom-squark pair production in pp collision events at root s=13 TeV with hadronically decaying tau-leptons, b-jets, and missing transverse momentum using the ATLAS detector
T2  - Phys. Rev. D
JO  - Physical Review D
SP  - 032014
EP  - 31pp
VL  - 104
IS  - 3
PB  - Amer Physical Soc
AB  - A search for pair production of bottom squarks in events with hadronically decaying t-leptons, b-tagged jets, and large missing transverse momentum is presented. The analyzed dataset is based on proton-proton collisions at root s = 13 TeV delivered by the Large Hadron Collider and recorded by the ATLAS detector from 2015 to 2018, and corresponds to an integrated luminosity of 139 fb(-1). The observed data are compatible with the expected Standard Model background. Results are interpreted in a simplified model where each bottom squark is assumed to decay into the second-lightest neutralino (chi) over tilde (0)(2) and a bottom quark, with (chi) over tilde (0)(2) decaying into a Higgs boson and the lightest neutralino (chi) over tilde1(0). The search focuses on final states where at least one Higgs boson decays into a pair of hadronically decaying t-leptons. This allows the acceptance and thus the sensitivity to be significantly improved relative to the previous results at low masses of the (chi) over tilde (0)(2), where bottom-squark masses up to 850 GeV are excluded at the 95% confidence level, assuming a mass difference of 130 GeV between (chi) over tilde (0)(2) and (chi) over tilde (0)(1). Model-independent upper limits are also set on the cross section of processes beyond the Standard Model.
SN  - 2470-0010
UR  - https://arxiv.org/abs/2103.08189
UR  - https://doi.org/10.1103/PhysRevD.104.032014
DO  - 10.1103/PhysRevD.104.032014
LA  - English
N1  - WOS:000692081200002
ID  - ATLASCollaborationAad_etal2021
ER  -