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Search for new phenomena in tt events with large missing transverse momentum in proton-proton collisions at sqrt[s] = 7 TeV with the ATLAS detector.

Publication ,  Journal Article
Aad, G; Abbott, B; Abdallah, J; Abdelalim, AA; Abdesselam, A; Abdinov, O; Abi, B; Abolins, M; Abramowicz, H; Abreu, H; Acerbi, E; Acharya, BS ...
Published in: Physical review letters
January 2012

A search for new phenomena in tt events with large missing transverse momentum in proton-proton collisions at a center-of-mass energy of 7 TeV is presented. The measurement is based on 1.04 fb(-1) of data collected with the ATLAS detector at the LHC. Contributions to this final state may arise from a number of standard model extensions. The results are interpreted in terms of a model where new top-quark partners are pair produced and each decay to an on-shell top (or antitop) quark and a long-lived undetected neutral particle. The data are found to be consistent with standard model expectations. A limit at 95% confidence level is set excluding a cross section times branching ratio of 1.1 pb for a top-partner mass of 420 GeV and a neutral particle mass less than 10 GeV. In a model of exotic fourth generation quarks, top-partner masses are excluded up to 420 GeV and neutral particle masses up to 140 GeV.

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Published In

Physical review letters

DOI

EISSN

1079-7114

ISSN

0031-9007

Publication Date

January 2012

Volume

108

Issue

4

Start / End Page

041805

Related Subject Headings

  • General Physics
  • 51 Physical sciences
  • 49 Mathematical sciences
  • 40 Engineering
  • 09 Engineering
  • 02 Physical Sciences
  • 01 Mathematical Sciences
 

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Aad, G., Abbott, B., Abdallah, J., Abdelalim, A. A., Abdesselam, A., Abdinov, O., … Coggeshall, J. (2012). Search for new phenomena in tt events with large missing transverse momentum in proton-proton collisions at sqrt[s] = 7 TeV with the ATLAS detector. Physical Review Letters, 108(4), 041805. https://doi.org/10.1103/physrevlett.108.041805
Aad, G., B. Abbott, J. Abdallah, A. A. Abdelalim, A. Abdesselam, O. Abdinov, B. Abi, et al. “Search for new phenomena in tt events with large missing transverse momentum in proton-proton collisions at sqrt[s] = 7 TeV with the ATLAS detector.Physical Review Letters 108, no. 4 (January 2012): 041805. https://doi.org/10.1103/physrevlett.108.041805.
Aad G, Abbott B, Abdallah J, Abdelalim AA, Abdesselam A, Abdinov O, et al. Search for new phenomena in tt events with large missing transverse momentum in proton-proton collisions at sqrt[s] = 7 TeV with the ATLAS detector. Physical review letters. 2012 Jan;108(4):041805.
Aad, G., et al. “Search for new phenomena in tt events with large missing transverse momentum in proton-proton collisions at sqrt[s] = 7 TeV with the ATLAS detector.Physical Review Letters, vol. 108, no. 4, Jan. 2012, p. 041805. Epmc, doi:10.1103/physrevlett.108.041805.
Aad G, Abbott B, Abdallah J, Abdelalim AA, Abdesselam A, Abdinov O, Abi B, Abolins M, Abramowicz H, Abreu H, Acerbi E, Acharya BS, Adams DL, Addy TN, Adelman J, Aderholz M, Adomeit S, Adragna P, Adye T, Aefsky S, Aguilar-Saavedra JA, Aharrouche M, Ahlen SP, Ahles F, Ahmad A, Ahsan M, Aielli G, Akdogan T, Akesson TPA, Akimoto G, Akimov AV, Akiyama A, Alam MS, Alam MA, Albert J, Albrand S, Aleksa M, Aleksandrov IN, Alessandria F, Alexa C, Alexander G, Alexandre G, Alexopoulos T, Alhroob M, Aliev M, Alimonti G, Alison J, Aliyev M, Allport PP, Allwood-Spiers SE, Almond J, Aloisio A, Alon R, Alonso A, Alviggi MG, Amako K, Amaral P, Amelung C, Ammosov VV, Amorim A, Amorós G, Amram N, Anastopoulos C, Ancu LS, Andari N, Andeen T, Anders CF, Anders G, Anderson KJ, Andreazza A, Andrei V, Andrieux M-L, Anduaga XS, Angerami A, Anghinolfi F, Anjos N, Annovi A, Antonaki A, Antonelli M, Antonov A, Antos J, Anulli F, Aoun S, Aperio Bella L, Apolle R, Arabidze G, Aracena I, Arai Y, Arce ATH, Archambault JP, Arfaoui S, Arguin J-F, Arik E, Arik M, Armbruster AJ, Arnaez O, Arnault C, Artamonov A, Artoni G, Arutinov D, Asai S, Asfandiyarov R, Ask S, Asman B, Asquith L, Assamagan K, Astbury A, Astvatsatourov A, Atoian G, Aubert B, Auge E, Augsten K, Aurousseau M, Austin N, Avolio G, Avramidou R, Axen D, Ay C, Azuelos G, Azuma Y, Baak MA, Baccaglioni G, Bacci C, Bach AM, Bachacou H, Bachas K, Bachy G, Backes M, Backhaus M, Badescu E, Bagnaia P, Bahinipati S, Bai Y, Bailey DC, Bain T, Baines JT, Baker OK, Baker MD, Baker S, Banas E, Banerjee P, Banerjee S, Banfi D, Bangert A, Bansal V, Bansil HS, Barak L, Baranov SP, Barashkou A, Barbaro Galtieri A, Barber T, Barberio EL, Barberis D, Barbero M, Bardin DY, Barillari T, Barisonzi M, Barklow T, Barlow N, Barnett BM, Barnett RM, Baroncelli A, Barone G, Barr AJ, Barreiro F, Barreiro Guimarães da Costa J, Barrillon P, Bartoldus R, Barton AE, Bartsch D, Bartsch V, Bates RL, Batkova L, Batley JR, Battaglia A, Battistin M, Battistoni G, Bauer F, Bawa HS, Beare B, Beau T, Beauchemin PH, Beccherle R, Bechtle P, Beck HP, Beckingham M, Becks KH, Beddall AJ, Beddall A, Bedikian S, Bednyakov VA, Bee CP, Begel M, Behar Harpaz S, Behera PK, Beimforde M, Belanger-Champagne C, Bell PJ, Bell WH, Bella G, Bellagamba L, Bellina F, Bellomo M, Belloni A, Beloborodova O, Belotskiy K, Beltramello O, Ben Ami S, Benary O, Benchekroun D, Benchouk C, Bendel M, Benekos N, Benhammou Y, Benjamin DP, Benoit M, Bensinger JR, Benslama K, Bentvelsen S, Berge D, Bergeaas Kuutmann E, Berger N, Berghaus F, Berglund E, Beringer J, Bernardet K, Bernat P, Bernhard R, Bernius C, Berry T, Bertin A, Bertinelli F, Bertolucci F, Besana MI, Besson N, Bethke S, Bhimji W, Bianchi RM, Bianco M, Biebel O, Bieniek SP, Bierwagen K, Biesiada J, Biglietti M, Bilokon H, Bindi M, Binet S, Bingul A, Bini C, Biscarat C, Bitenc U, Black KM, Blair RE, Blanchard J-B, Blanchot G, Blazek T, Blocker C, Blocki J, Blondel A, Blum W, Blumenschein U, Bobbink GJ, Bobrovnikov VB, Bocchetta SS, Bocci A, Boddy CR, Boehler M, Boek J, Boelaert N, Böser S, Bogaerts JA, Bogdanchikov A, Bogouch A, Bohm C, Boisvert V, Bold T, Boldea V, Bolnet NM, Bona M, Bondarenko VG, Bondioli M, Boonekamp M, Boorman G, Booth CN, Bordoni S, Borer C, Borisov A, Borissov G, Borjanovic I, Borroni S, Bos K, Boscherini D, Bosman M, Boterenbrood H, Botterill D, Bouchami J, Boudreau J, Bouhova-Thacker EV, Bourdarios C, Bousson N, Boveia A, Boyd J, Boyko IR, Bozhko NI, Bozovic-Jelisavcic I, Bracinik J, Braem A, Branchini P, Brandenburg GW, Brandt A, Brandt G, Brandt O, Bratzler U, Brau B, Brau JE, Braun HM, Brelier B, Bremer J, Brenner R, Bressler S, Breton D, Britton D, Brochu FM, Brock I, Brock R, Brodbeck TJ, Brodet E, Broggi F, Bromberg C, Brooijmans G, Brooks WK, Brown G, Brown H, Bruckman de Renstrom PA, Bruncko D, Bruneliere R, Brunet S, Bruni A, Bruni G, Bruschi M, Buanes T, Bucci F, Buchanan J, Buchanan NJ, Buchholz P, Buckingham RM, Buckley AG, Buda SI, Budagov IA, Budick B, Büscher V, Bugge L, Buira-Clark D, Bulekov O, Bunse M, Buran T, Burckhart H, Burdin S, Burgess T, Burke S, Busato E, Bussey P, Buszello CP, Butin F, Butler B, Butler JM, Buttar CM, Butterworth JM, Buttinger W, Cabrera Urbán S, Caforio D, Cakir O, Calafiura P, Calderini G, Calfayan P, Calkins R, Caloba LP, Caloi R, Calvet D, Calvet S, Camacho Toro R, Camarri P, Cambiaghi M, Cameron D, Campana S, Campanelli M, Canale V, Canelli F, Canepa A, Cantero J, Capasso L, Capeans Garrido MDM, Caprini I, Caprini M, Capriotti D, Capua M, Caputo R, Cardarelli R, Carli T, Carlino G, Carminati L, Caron B, Caron S, Carrillo Montoya GD, Carter AA, Carter JR, Carvalho J, Casadei D, Casado MP, Cascella M, Caso C, Castaneda Hernandez AM, Castaneda-Miranda E, Castillo Gimenez V, Castro NF, Cataldi G, Cataneo F, Catinaccio A, Catmore JR, Cattai A, Cattani G, Caughron S, Cauz D, Cavalleri P, Cavalli D, Cavalli-Sforza M, Cavasinni V, Ceradini F, Cerqueira AS, Cerri A, Cerrito L, Cerutti F, Cetin SA, Cevenini F, Chafaq A, Chakraborty D, Chan K, Chapleau B, Chapman JD, Chapman JW, Chareyre E, Charlton DG, Chavda V, Chavez Barajas CA, Cheatham S, Chekanov S, Chekulaev SV, Chelkov GA, Chelstowska MA, Chen C, Chen H, Chen S, Chen T, Chen X, Cheng S, Cheplakov A, Chepurnov VF, Cherkaoui El Moursli R, Chernyatin V, Cheu E, Cheung SL, Chevalier L, Chiefari G, Chikovani L, Childers JT, Chilingarov A, Chiodini G, Chizhov MV, Choudalakis G, Chouridou S, Christidi IA, Christov A, Chromek-Burckhart D, Chu ML, Chudoba J, Ciapetti G, Ciba K, Ciftci AK, Ciftci R, Cinca D, Cindro V, Ciobotaru MD, Ciocca C, Ciocio A, Cirilli M, Ciubancan M, Clark A, Clark PJ, Cleland W, Clemens JC, Clement B, Clement C, Clifft RW, Coadou Y, Cobal M, Coccaro A, Cochran J, Coe P, Cogan JG, Coggeshall J. Search for new phenomena in tt events with large missing transverse momentum in proton-proton collisions at sqrt[s] = 7 TeV with the ATLAS detector. Physical review letters. 2012 Jan;108(4):041805.

Published In

Physical review letters

DOI

EISSN

1079-7114

ISSN

0031-9007

Publication Date

January 2012

Volume

108

Issue

4

Start / End Page

041805

Related Subject Headings

  • General Physics
  • 51 Physical sciences
  • 49 Mathematical sciences
  • 40 Engineering
  • 09 Engineering
  • 02 Physical Sciences
  • 01 Mathematical Sciences