Search for R-parity-violating supersymmetry in a final state containing leptons and many jets with the ATLAS experiment using root s=13 TeV proton-proton collision data
Articolo
Data di Pubblicazione:
2021
Abstract:
A search for R-parity-violating supersymmetry in final states characterized by high jet multiplicity, at least one isolated light lepton and either zero or at least three b-tagged jets is presented. The search uses 139 fb(-1) of root s = 13 TeV proton-proton collision data collected by the ATLAS experiment during Run 2 of the Large Hadron Collider. The results are interpreted in the context of R-parity-violating supersymmetry models that feature gluino production, top-squark production, or electroweakino production. The dominant sources of background are estimated using a data-driven model, based on observables at medium jet multiplicity, to predict the b-tagged jet multiplicity distribution at the higher jet multiplicities used in the search. Machine-learning techniques are used to reach sensitivity to electroweakino production, extending the data-driven background estimation to the shape of the machine-learning discriminant. No significant excess over the Standard Model expectation is observed and exclusion limits at the 95% confidence level are extracted, reaching as high as 2.4 TeV in gluino mass, 1.35 TeV in top-squark mass, and 320 (365) GeV in higgsino (wino) mass.
Tipologia CRIS:
1.1 Articolo in rivista
Keywords:
Particle physics, High energy physics
Elenco autori:
Aad, G; Abbott, B; Abbott, Dc; Abud, Aa; Abeling, K; Abhayasinghe, Dk; Abidi, Sh; Abramowicz, H; Abreu, H; Abulaiti, Y; Hoffman, Aca; Acharya, Bs; Achkar, B; Adam, L; Bourdarios, Ca; Adamczyk, L; Adamek, L; Adelman, J; Adiguzel, A; Adorni, S; Adye, T; Affolder, Aa; Afik, Y; Agapopoulou, C; Agaras, Mn; Agarwala, J; Aggarwal, A; Agheorghiesei, C; Aguilar-Saavedra, Ja; Ahmad, A; Ahmadov, F; Ahmed, Ws; Ai, X; Aielli, G; Akatsuka, S; Akbiyik, M; Akesson, Tpa; Akimov, Av; Al Khoury, K; Alberghi, Gl; Albert, J; Verzini, Mja; Alderweireldt, S; Aleksa, M; Aleksandrov, In; Alexa, C; Alexopoulos, T; Alfonsi, A; Alfonsi, F; Alhroob, M; Ali, B; Ali, S; Aliev, M; Alimonti, G; Allaire, C; Allbrooke, Bmm; Allport, Pp; Aloisio, A; Alonso, F; Alpigiani, C; Camelia, Ea; Estevez, Ma; Alviggi, Mg; Coutinho, Ya; Ambler, A; Ambroz, L; Amelung, C; Amidei, D; Dos Santos, Spa; Amoroso, S; Amrouche, Cs; Anastopoulos, C; Andari, N; Andeen, T; Anders, Jk; Andrean, Sy; Andreazza, A; Andrei, V; Angelidakis, S; Angerami, A; Anisenkov, Av; Annovi, A; Antel, C; Anthony, Mt; Antipov, E; Antonelli, M; Antrim, Dja; Anulli, F; Aoki, M; Pozo, Jaa; Aparo, Ma; Bella, La; Aranzabal, N; Ferraz, Va; Arcangeletti, C; Arce, Ath; Arena, E; Arguin, Jf; Argyropoulos, S; Arling, Jh; Armbruster, Aj; Armstrong, A; Arnaez, O; Arnold, H; Tame, Zpa; Artoni, G; Asada, H; Asai, K; Asai, S; Asbah, Na; Asimakopoulou, Em; Asquith, L; Assahsah, J; Assamagan, K; Astalos, R; Atkin, Rj; Atkinson, M; Atlay, Nb; Atmani, H; Atmasiddha, Pa; Augsten, K; Auricchio, S; Austrup, Va; Avolio, G; Ayoub, Mk; Azuelos, G; Babal, D; Bachacou, H; Bachas, K; Backman, F; Badea, A; Bagnaia, P; Bahrasemani, H; Bailey, Aj; Bailey, Vr; Baines, Jt; Bakalis, C; Baker, Ok; Bakker, Pj; Bakos, E; Gupta, Db; Balaji, S; Balasubramanian, R; Baldin, Em; Balek, P; Ballabene, E; Balli, F; Balunas, Wk; Balz, J; Banas, E; Bandieramonte, M; Bandyopadhyay, A; Barak, L; Barberio, El; Barberis, D; Barbero, M; Barbour, G; Barends, Kn; Barillari, T; Barisits, Ms; Barkeloo, J; Barklow, T; Barnett, Bm; Barnett, Rm; Baroncelli, A; Barone, G; Barr, Aj; Navarro, Lb; Barreiro, F; da Costa, Jbg; Barron, U; Barsov, S; Bartels, F; Bartoldus, R; Bartolini, G; Barton, Ae; Bartos, P; Basalaev, A; Basan, A; Bashta, I; Bassalat, A; Basso, Mj; Basson, Cr; Bates, Rl; Batlamous, S; Batley, Jr; Batool, B; Battaglia, M; Bauce, M; Bauer, F; Bauer, P; Bawa, Hs; Bayirli, A; Beacham, Jb; Beau, T; Beauchemin, Ph; Becherer, F; Bechtle, P; Beck, Hp; Becker, K; Becot, C; Beddall, Aj; Bednyakov, Va; Bee, Cp; Beermann, Ta; Begalli, M; Begel, M; Behera, A; Behr, Jk; Silva, Cbde; Beirer, Jf; Beisiegel, F; Belfkir, M; Bella, G; Bellagamba, L; Bellerive, A; Bellos, P; Beloborodov, K; Belotskiy, K; Belyaev, Nl; Benchekroun, D; Benhammou, Y; Benjamin, Dp; Benoit, M; Bensinger, Jr; Bentvelsen, S; Beresford, L; Beretta, M; Berge, D; Kuutmann, Eb; Berger, N; Bergmann, B; Bergsten, Lj; Beringer, J; Berlendis, S; Bernardi, G; Bernius, C; Bernlochner, Fu; Berry, T; Berta, P; Berthold, A; Bertram, Ia; Bylund, Ob; Bethke, S; Betti, A; Bevan, Aj; Bhatta, S; Bhattacharya, Ds; Bhattarai, P; Bhopatkar, Vs; Bi, R; Bianchi, Rm; Biebel, O; Bielski, R; Biesuz, Nv; Biglietti, M; Billoud, Trv; Bindi, M; Bingul, A; Bini, C; Biondi, S; Birch-sykes, Cj; Bird, Ga; Birman, M; Bisanz, T; Biswal, Jp; Biswas, D; Bitadze, A; Bittrich, C; Bjorke, K; Bloch, I; Blocker, C; Blue, A; Blumenschein, U; Blumenthal, J; Bobbink, Gj; Bobrovnikov, Vs; Bogavac, D; Bogdanchikov, Ag; Bohm, C; Boisvert, V; Bokan, P; Bold, T; Bomben, M; Bona, M; Boonekamp, M; Booth, Cd; Borbely, Ag; Borecka-Bielska, Hm; Borgna, Ls; Borissov, G; Bortoletto, D; Boscherini, D; Bosman, M; Sola, Jdb; Bouaouda, K; Boudreau, J; Bouhova-Thacker, Ev; Boumediene, D; Bouquet, R; Boveia, A; Boyd, J; Boye, D; Boyko, Ir; Bozson, Aj; Bracinik, J; Brahimi, N; Brandt, G; Brandt, O; Braren, F; Brau, B; Brau, Je; Madden, Wdb; Brendlinger, K; Brener, R; Brenner, L; Brenner, R; Bressler, S; Brickwedde, B; Briglin, Dl; Britton, D; Britzger, D; B
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