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Search for scalar top quark pair production in natural gauge mediated supersymmetry models with the ATLAS detector in pp collisions at s=7TeV

Publication ,  Journal Article
Aad, G; Abbott, B; Abdallah, J; Khalek, SA; Abdelalim, AA; Abdinov, O; Abi, B; Abolins, M; AbouZeid, OS; Abramowicz, H; Abreu, H; Acerbi, E ...
Published in: Physics Letters, Section B: Nuclear, Elementary Particle and High-Energy Physics
2012

The results of a search for pair production of the lighter scalar partners of top quarks (t~1) in 2.05 fb-1 of pp collisions at s=7 TeV using the ATLAS experiment at the LHC are reported. Scalar top quarks are searched for in events with two same flavour opposite-sign leptons (e, μ) with invariant mass consistent with the Z boson mass, large missing transverse momentum and jets in the final state. At least one of the jets is identified as originating from a b-quark. No excess over Standard Model expectations is found. The results are interpreted in the framework of R-parity conserving, gauge mediated Supersymmetry breaking 'natural' scenarios, where the neutralino (χ~10) is the next-to-lightest supersymmetric particle. Scalar top quark masses up to 310 GeV are excluded for 115GeV<mχ~10<230GeV at 95% confidence level, reaching an exclusion of mt~1<330GeV for mχ~10=190GeV. Scalar top quark masses below 240 GeV are excluded for all values of mχ~10>mZ. © 2012 CERN.

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Published In

Physics Letters, Section B: Nuclear, Elementary Particle and High-Energy Physics

DOI

ISSN

0370-2693

Publication Date

2012

Volume

715

Issue

1-3

Start / End Page

44 / 60

Related Subject Headings

  • Nuclear & Particles Physics
  • 51 Physical sciences
  • 49 Mathematical sciences
  • 0202 Atomic, Molecular, Nuclear, Particle and Plasma Physics
  • 0201 Astronomical and Space Sciences
  • 0105 Mathematical Physics
 

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Aad, G., Abbott, B., Abdallah, J., Khalek, S. A., Abdelalim, A. A., Abdinov, O., … Conidi, M. C. (2012). Search for scalar top quark pair production in natural gauge mediated supersymmetry models with the ATLAS detector in pp collisions at s=7TeV. Physics Letters, Section B: Nuclear, Elementary Particle and High-Energy Physics, 715(1–3), 44–60. https://doi.org/10.1016/j.physletb.2012.07.010
Aad, G., B. Abbott, J. Abdallah, S. A. Khalek, A. A. Abdelalim, O. Abdinov, B. Abi, et al. “Search for scalar top quark pair production in natural gauge mediated supersymmetry models with the ATLAS detector in pp collisions at s=7TeV.” Physics Letters, Section B: Nuclear, Elementary Particle and High-Energy Physics 715, no. 1–3 (2012): 44–60. https://doi.org/10.1016/j.physletb.2012.07.010.
Aad G, Abbott B, Abdallah J, Khalek SA, Abdelalim AA, Abdinov O, et al. Search for scalar top quark pair production in natural gauge mediated supersymmetry models with the ATLAS detector in pp collisions at s=7TeV. Physics Letters, Section B: Nuclear, Elementary Particle and High-Energy Physics. 2012;715(1–3):44–60.
Aad, G., et al. “Search for scalar top quark pair production in natural gauge mediated supersymmetry models with the ATLAS detector in pp collisions at s=7TeV.” Physics Letters, Section B: Nuclear, Elementary Particle and High-Energy Physics, vol. 715, no. 1–3, 2012, pp. 44–60. Scival, doi:10.1016/j.physletb.2012.07.010.
Aad G, Abbott B, Abdallah J, Khalek SA, Abdelalim AA, Abdinov O, Abi B, Abolins M, AbouZeid OS, Abramowicz H, Abreu H, Acerbi E, Acharya BS, Adamczyk L, Adams DL, Addy TN, Adelman J, 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, Åkesson 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, Allbrooke BMM, Allport PP, Allwood-Spiers SE, Almond J, Aloisio A, Alon R, Alonso A, Gonzalez BA, Alviggi MG, Amako K, 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, Anduaga XS, Angerami A, Anghinolfi F, Anisenkov A, Anjos N, Annovi A, Antonaki A, Antonelli M, Antonov A, Antos J, Anulli F, Aoun S, Bella LA, Apolle R, Arabidze G, Aracena I, Arai Y, Arce ATH, Arfaoui S, Arguin JF, Arik E, Arik M, Armbruster AJ, Arnaez O, Arnal V, Arnault C, Artamonov A, Artoni G, Arutinov D, Asai S, Asfandiyarov R, Ask S, Åsman B, Asquith L, Assamagan K, Astbury A, Aubert B, Auge E, Augsten K, Aurousseau M, Avolio G, Avramidou R, Axen D, Azuelos G, Azuma Y, Baak MA, Baccaglioni G, Bacci C, Bach AM, Bachacou H, Bachas K, 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, Galtieri AB, 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, Costa JBGD, Barrillon P, Bartoldus R, Barton AE, Bartsch V, Bates RL, Batkova L, Batley JR, Battaglia A, Battistin M, Bauer F, Bawa HS, Beale S, Beau T, Beauchemin PH, Beccherle R, Bechtle P, Beck HP, Becker S, Beckingham M, Becks KH, Beddall AJ, Beddall A, Bedikian S, Bednyakov VA, Bee CP, Begel M, Harpaz SB, 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, Benary O, Benchekroun D, Bendtz K, Benekos N, Benhammou Y, Noccioli EB, Garcia JAB, Benjamin DP, Benoit M, Bensinger JR, Benslama K, Bentvelsen S, Berge D, Kuutmann EB, Berger N, Berghaus F, Berglund E, Beringer J, Bernat P, Bernhard R, Bernius C, Berry T, Bertella C, Bertin A, 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 JB, 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, Bogaerts JA, Bogdanchikov A, Bogouch A, Bohm C, Bohm J, Boisvert V, Bold T, Boldea V, Bolnet NM, Bomben M, Bona M, Bondioli M, Boonekamp M, Booth CN, Bordoni S, Borer C, Borisov A, Borissov G, Borjanovic I, Borri M, Borroni S, Bortolotto V, Bos K, Boscherini D, Bosman M, Boterenbrood H, Botterill D, Bouchami J, Boudreau J, Bouhova-Thacker EV, Boumediene D, Bourdarios C, Bousson N, Boveia A, Boyd J, Boyko IR, Bozhko NI, Bozovic-Jelisavcic I, Bracinik J, Branchini P, Brandt A, Brandt G, Brandt O, Bratzler U, Brau B, Brau JE, Braun HM, Brelier B, Bremer J, Brendlinger K, Brenner R, Bressler S, Britton D, Brochu FM, Brock I, Brock R, Brodet E, Broggi F, Bromberg C, Bronner J, Brooijmans G, Brooks WK, Brown G, Brown H, Renstrom PABD, Bruncko D, Bruneliere R, Brunet S, Bruni A, Bruni G, Bruschi M, Buanes T, Buat Q, Bucci F, Buchanan J, Buchholz P, Buckingham RM, Buckley AG, Buda SI, Budagov IA, Budick B, Büscher V, Bugge L, Bulekov O, Bundock AC, Bunse M, Buran T, Burckhart H, Burdin S, Burgess T, Burke S, Busato E, Bussey P, Buszello CP, Butler B, Butler JM, Buttar CM, Butterworth JM, Buttinger W, Urbán SC, Caforio D, Cakir O, Calafiura P, Calderini G, Calfayan P, Calkins R, Caloba LP, Caloi R, Calvet D, Calvet S, Toro RC, Camarri P, Cameron D, Caminada LM, Campana S, Campanelli M, Canale V, Canelli F, Canepa A, Cantero J, Capasso L, Garrido MDMC, Caprini I, Caprini M, Capriotti D, Capua M, Caputo R, Cardarelli R, Carli T, Carlino G, Carminati L, Caron B, Caron S, Carquin E, Montoya GDC, Carter AA, Carter JR, Carvalho J, Casadei D, Casado MP, Cascella M, Caso C, Hernandez AMC, Castaneda-Miranda E, Gimenez VC, Castro NF, Cataldi G, Catastini P, 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, Chafaq A, Chakraborty D, Chalupkova I, Chan K, Chapleau B, Chapman JD, Chapman JW, Chareyre E, Charlton DG, Chavda V, Barajas CAC, Cheatham S, Chekanov S, Chekulaev SV, Chelkov GA, Chelstowska MA, Chen C, Chen H, Chen S, Chen X, Cheplakov A, Moursli RCE, Chernyatin V, Cheu E, Cheung SL, Chevalier L, Chiefari G, Chikovani L, Childers JT, Chilingarov A, Chiodini G, Chisholm AS, Chislett RT, Chizhov MV, Choudalakis G, Chouridou S, Christidi IA, Christov A, Chromek-Burckhart D, Chu ML, Chudoba J, Ciapetti G, Ciftci AK, Ciftci R, Cinca D, Cindro V, Ciocca C, Ciocio A, Cirilli M, Citterio M, Ciubancan M, Clark A, Clark PJ, Cleland W, Clemens JC, Clement B, Clement C, Coadou Y, Cobal M, Coccaro A, Cochran J, Coe P, Cogan JG, Coggeshall J, Cogneras E, Colas J, Colijn AP, Collins NJ, Collins-Tooth C, Collot J, Colon G, Muiño PC, Coniavitis E, Conidi MC. Search for scalar top quark pair production in natural gauge mediated supersymmetry models with the ATLAS detector in pp collisions at s=7TeV. Physics Letters, Section B: Nuclear, Elementary Particle and High-Energy Physics. 2012;715(1–3):44–60.
Journal cover image

Published In

Physics Letters, Section B: Nuclear, Elementary Particle and High-Energy Physics

DOI

ISSN

0370-2693

Publication Date

2012

Volume

715

Issue

1-3

Start / End Page

44 / 60

Related Subject Headings

  • Nuclear & Particles Physics
  • 51 Physical sciences
  • 49 Mathematical sciences
  • 0202 Atomic, Molecular, Nuclear, Particle and Plasma Physics
  • 0201 Astronomical and Space Sciences
  • 0105 Mathematical Physics