Search for excited electrons singly produced in proton–proton collisions at √s=13Te with the ATLAS experiment at the LHC
Articolo
Data di Pubblicazione:
2019
Citazione:
Search for excited electrons singly produced in proton–proton collisions at √s=13Te with the ATLAS experiment at the LHC / M. Aaboud, G. Aad, B. Abbott, D.C. Abbott, O. Abdinov, B. Abeloos, D.K. Abhayasinghe, S.H. Abidi, O.S. Abouzeid, N.L. Abraham, H. Abramowicz, H. Abreu, Y. Abulaiti, B.S. Acharya, S. Adachi, L. Adam, C.A. Bourdarios, L. Adamczyk, L. Adamek, J. Adelman, M. Adersberger, A. Adiguzel, T. Adye, A.A. Affolder, Y. Afik, C. Agapopoulou, C. Agheorghiesei, J.A. Aguilar-Saavedra, F. Ahmadov, G. Aielli, S. Akatsuka, T.P.A. Akesson, E. Akilli, A.V. Akimov, G.L. Alberghi, J. Albert, M.J.A. Verzini, S. Alderweireldt, M. Aleksa, I.N. Aleksandrov, C. Alexa, D. Alexandre, T. Alexopoulos, M. Alhroob, B. Ali, G. Alimonti, J. Alison, S.P. Alkire, C. Allaire, B.M.M. Allbrooke, B.W. Allen, P.P. Allport, A. Aloisio, A. Alonso, F. Alonso, C. Alpigiani, A.A. Alshehri, M.I. Alstaty, B.A. Gonzalez, D.A. Piqueras, M.G. Alviggi, Y.A. Coutinho, A. Ambler, L. Ambroz, C. Amelung, D. Amidei, S.P.A.D. Santos, S. Amoroso, C.S. Amrouche, F. An, C. Anastopoulos, N. Andari, T. Andeen, C.F. Anders, J.K. Anders, A. Andreazza, V. Andrei, C.R. Anelli, S. Angelidakis, I. Angelozzi, A. Angerami, A.V. Anisenkov, A. Annovi, C. Antel, M.T. Anthony, M. Antonelli, D.J.A. Antrim, F. Anulli, M. Aoki, J.A.A. Pozo, L.A. Bella, G. Arabidze, J.P. Araque, V.A. Ferraz, R.A. Pereira, A.T.H. Arce, F.A. Arduh, J.-. Arguin, S. Argyropoulos, J.-. Arling, A.J. Armbruster, L.J. Armitage, A. Armstrong, O. Arnaez, H. Arnold, A. Artamonov, G. Artoni, S. Artz, S. Asai, N. Asbah, E.M. Asimakopoulou, L. Asquith, K. Assamagan, R. Astalos, R.J. Atkin, M. Atkinson, N.B. Atlay, K. Augsten, G. Avolio, R. Avramidou, M.K. Ayoub, A.M. Azoulay, G. Azuelos, A.E. Baas, M.J. Baca, H. Bachacou, K. Bachas, M. Backes, F. Backman, P. Bagnaia, M. Bahmani, H. Bahrasemani, A.J. Bailey, V.R. Bailey, J.T. Baines, M. Bajic, C. Bakalis, O.K. Baker, P.J. Bakker, D.B. Gupta, S. Balaji, E.M. Baldin, P. Balek, F. Balli, W.K. Balunas, J. Balz, E. Banas, A. Bandyopadhyay, S. Banerjee, A.A.E. Bannoura, L. Barak, W.M. Barbe, E.L. Barberio, D. Barberis, M. Barbero, T. Barillari, M.-. Barisits, J. Barkeloo, T. Barklow, R. Barnea, S.L. Barnes, B.M. Barnett, R.M. Barnett, Z. Barnovska-Blenessy, A. Baroncelli, G. Barone, A.J. Barr, L.B. Navarro, F. Barreiro, J.B.G. da Costa, R. Bartoldus, A.E. Barton, P. Bartos, A. Basalaev, A. Bassalat, R.L. Bates, S.J. Batista, S. Batlamous, J.R. Batley, M. Battaglia, M. Bauce, F. Bauer, K.T. Bauer, H.S. Bawa, J.B. Beacham, T. Beau, P.H. Beauchemin, P. Bechtle, H.C. Beck, H.P. Beck, K. Becker, M. Becker, C. Becot, A. Beddall, A.J. Beddall, V.A. Bednyakov, M. Bedognetti, C.P. Bee, T.A. Beermann, M. Begalli, M. Begel, A. Behera, J.K. Behr, F. Beisiegel, A.S. Bell, G. Bella, L. Bellagamba, A. Bellerive, M. Bellomo, P. Bellos, K. Beloborodov, K. Belotskiy, N.L. Belyaev, O. Benary, D. Benchekroun, N. Benekos, Y. Benhammou, E.B. Noccioli, D.P. Benjamin, M. Benoit, J.R. Bensinger, S. Bentvelsen, L. Beresford, M. Beretta, D. Berge, E.B. Kuutmann, N. Berger, B. Bergmann, L.J. Bergsten, J. Beringer, S. Berlendis, N.R. Bernard, G. Bernardi, C. Bernius, F.U. Bernlochner, T. Berry, P. Berta, C. Bertella, G. Bertoli, I.A. Bertram, G.J. Besjes, O.B. Bylund, N. Besson, A. Bethani, S. Bethke, A. Betti, A.J. Bevan, J. Beyer, R. Bi, R.M. Bianchi, O. Biebel, D. Biedermann, R. Bielski, K. Bierwagen, N.V. Biesuz, M. Biglietti, T.R.V. Billoud, M. Bindi, A. Bingul, C. Bini, S. Biondi, M. Birman, T. Bisanz, J.P. Biswal, A. Bitadze, C. Bittrich, D.M. Bjergaard, J.E. Black, K.M. Black, T. Blazek, I. Bloch, C. Blocker, A. Blue, U. Blumenschein, S. Blunier, G.J. Bobbink, V.S. Bobrovnikov, S.S. Bocchetta, A. Bocci, D. Boerner, D. Bogavac, A.G. Bogdanchikov, C. Bohm, V. Boisvert, P. Bokan, T. Bold, A.S. Boldyrev, A.E. Bolz, M. Bomben, M. Bona, J.S. Bonilla, M. Boonekamp, H.M. Borecka-Bielska, A. Borisov, G. Borissov, J. Bortfeldt, D. Bortoletto, V. Bortolott
Abstract:
A search for excited electrons produced in pp collisions at root s = 13 TeV via a contact interaction q (q) over bar -> ee* is presented. The search uses 36.1 fb(-1) of data collected in 2015 and 2016 by the ATLAS experiment at the Large Hadron Collider. Decays of the excited electron into an electron and a pair of quarks (eq (q) over bar) are targeted in final states with two electrons and two hadronic jets, and decays via a gauge interaction into a neutrino and a W boson (nu W) are probed in final states with an electron, missing transverse momentum, and a large-radius jet consistent with a hadronically decaying W boson. No significant excess is observed over the expected backgrounds. Upper limits are calculated for the pp -> ee* -> eeq (q) over bar and pp -> ee* -> e nu W production cross sections as a function of the excited electron mass m(e)* at 95% confidence level. The limits are translated into lower bounds on the compositeness scale parameter Lambda of the model as a function of m(e)*. For m(e)* < 0.5 TeV, the lower bound for Lambda is 11 TeV. In the special case of m(e)* = Lambda, the values of m(e)* < 4.8 TeV are excluded. The presented limits on Lambda are more stringent than those obtained in previous searches.
Tipologia IRIS:
01 - Articolo su periodico
Keywords:
parton distributions; lepton production; PP collisions; EP collisions; plus plus; physics; quark
Elenco autori:
M. Aaboud, G. Aad, B. Abbott, D.C. Abbott, O. Abdinov, B. Abeloos, D.K. Abhayasinghe, S.H. Abidi, O.S. Abouzeid, N.L. Abraham, H. Abramowicz, H. Abreu, Y. Abulaiti, B.S. Acharya, S. Adachi, L. Adam, C.A. Bourdarios, L. Adamczyk, L. Adamek, J. Adelman, M. Adersberger, A. Adiguzel, T. Adye, A.A. Affolder, Y. Afik, C. Agapopoulou, C. Agheorghiesei, J.A. Aguilar-Saavedra, F. Ahmadov, G. Aielli, S. Akatsuka, T.P.A. Akesson, E. Akilli, A.V. Akimov, G.L. Alberghi, J. Albert, M.J.A. Verzini, S. Alderweireldt, M. Aleksa, I.N. Aleksandrov, C. Alexa, D. Alexandre, T. Alexopoulos, M. Alhroob, B. Ali, G. Alimonti, J. Alison, S.P. Alkire, C. Allaire, B.M.M. Allbrooke, B.W. Allen, P.P. Allport, A. Aloisio, A. Alonso, F. Alonso, C. Alpigiani, A.A. Alshehri, M.I. Alstaty, B.A. Gonzalez, D.A. Piqueras, M.G. Alviggi, Y.A. Coutinho, A. Ambler, L. Ambroz, C. Amelung, D. Amidei, S.P.A.D. Santos, S. Amoroso, C.S. Amrouche, F. An, C. Anastopoulos, N. Andari, T. Andeen, C.F. Anders, J.K. Anders, A. Andreazza, V. Andrei, C.R. Anelli, S. Angelidakis, I. Angelozzi, A. Angerami, A.V. Anisenkov, A. Annovi, C. Antel, M.T. Anthony, M. Antonelli, D.J.A. Antrim, F. Anulli, M. Aoki, J.A.A. Pozo, L.A. Bella, G. Arabidze, J.P. Araque, V.A. Ferraz, R.A. Pereira, A.T.H. Arce, F.A. Arduh, J.-. Arguin, S. Argyropoulos, J.-. Arling, A.J. Armbruster, L.J. Armitage, A. Armstrong, O. Arnaez, H. Arnold, A. Artamonov, G. Artoni, S. Artz, S. Asai, N. Asbah, E.M. Asimakopoulou, L. Asquith, K. Assamagan, R. Astalos, R.J. Atkin, M. Atkinson, N.B. Atlay, K. Augsten, G. Avolio, R. Avramidou, M.K. Ayoub, A.M. Azoulay, G. Azuelos, A.E. Baas, M.J. Baca, H. Bachacou, K. Bachas, M. Backes, F. Backman, P. Bagnaia, M. Bahmani, H. Bahrasemani, A.J. Bailey, V.R. Bailey, J.T. Baines, M. Bajic, C. Bakalis, O.K. Baker, P.J. Bakker, D.B. Gupta, S. Balaji, E.M. Baldin, P. Balek, F. Balli, W.K. Balunas, J. Balz, E. Banas, A. Bandyopadhyay, S. Banerjee, A.A.E. Bannoura, L. Barak, W.M. Barbe, E.L. Barberio, D. Barberis, M. Barbero, T. Barillari, M.-. Barisits, J. Barkeloo, T. Barklow, R. Barnea, S.L. Barnes, B.M. Barnett, R.M. Barnett, Z. Barnovska-Blenessy, A. Baroncelli, G. Barone, A.J. Barr, L.B. Navarro, F. Barreiro, J.B.G. da Costa, R. Bartoldus, A.E. Barton, P. Bartos, A. Basalaev, A. Bassalat, R.L. Bates, S.J. Batista, S. Batlamous, J.R. Batley, M. Battaglia, M. Bauce, F. Bauer, K.T. Bauer, H.S. Bawa, J.B. Beacham, T. Beau, P.H. Beauchemin, P. Bechtle, H.C. Beck, H.P. Beck, K. Becker, M. Becker, C. Becot, A. Beddall, A.J. Beddall, V.A. Bednyakov, M. Bedognetti, C.P. Bee, T.A. Beermann, M. Begalli, M. Begel, A. Behera, J.K. Behr, F. Beisiegel, A.S. Bell, G. Bella, L. Bellagamba, A. Bellerive, M. Bellomo, P. Bellos, K. Beloborodov, K. Belotskiy, N.L. Belyaev, O. Benary, D. Benchekroun, N. Benekos, Y. Benhammou, E.B. Noccioli, D.P. Benjamin, M. Benoit, J.R. Bensinger, S. Bentvelsen, L. Beresford, M. Beretta, D. Berge, E.B. Kuutmann, N. Berger, B. Bergmann, L.J. Bergsten, J. Beringer, S. Berlendis, N.R. Bernard, G. Bernardi, C. Bernius, F.U. Bernlochner, T. Berry, P. Berta, C. Bertella, G. Bertoli, I.A. Bertram, G.J. Besjes, O.B. Bylund, N. Besson, A. Bethani, S. Bethke, A. Betti, A.J. Bevan, J. Beyer, R. Bi, R.M. Bianchi, O. Biebel, D. Biedermann, R. Bielski, K. Bierwagen, N.V. Biesuz, M. Biglietti, T.R.V. Billoud, M. Bindi, A. Bingul, C. Bini, S. Biondi, M. Birman, T. Bisanz, J.P. Biswal, A. Bitadze, C. Bittrich, D.M. Bjergaard, J.E. Black, K.M. Black, T. Blazek, I. Bloch, C. Blocker, A. Blue, U. Blumenschein, S. Blunier, G.J. Bobbink, V.S. Bobrovnikov, S.S. Bocchetta, A. Bocci, D. Boerner, D. Bogavac, A.G. Bogdanchikov, C. Bohm, V. Boisvert, P. Bokan, T. Bold, A.S. Boldyrev, A.E. Bolz, M. Bomben, M. Bona, J.S. Bonilla, M. Boonekamp, H.M. Borecka-Bielska, A. Borisov, G. Borissov, J. Bortfeldt, D. Bortoletto, V. Bortolotto, D. Boscherini, M. Bosman, J.D.B. Sola, K. Bouaouda, J. Boudreau, E.V. Bouhova-Thacker, D. Boumediene, S.K. Boutle, A. Boveia, J. Boyd, D. Boye, I.R. Boyko, A.J. Bozson, J
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