Search for excited electrons and muons in √s=8 TeV proton-proton collisions with the ATLAS detector

被引：18

作者：

Aad, G. ^{[73
]}

Abajyan, T.

Abbott, B. ^{[153
]}

Abdallah, J. ^{[16
,17
]}

Khalek, S. Abdel ^{[157
,158
]}

Abdinov, O. ^{[15
]}

Aben, R. ^{[146
,147
]}

Abi, B. ^{[154
]}

Abolins, M. ^{[126
]}

AbouZeid, O. S. ^{[219
]}

Abramowicz, H. ^{[213
]}

Abreu, H. ^{[191
]}

Abulaiti, Y. ^{[204
,205
]}

Acharya, B. S. ^{[226
,227
,247
]}

Adamczyk, L. ^{[61
]}

Adams, D. L. ^{[39
]}

Addy, T. N. ^{[85
]}

Adelman, J. ^{[244
]}

Adomeit, S. ^{[137
]}

Adye, T. ^{[176
]}

Aefsky, S. ^{[34
]}

Agatonovic-Jovin, T. ^{[19
]}

Aguilar-Saavedra, J. A. ^{[169
,170
,171
]}

Agustoni, M. ^{[24
,25
]}

Ahlen, S. P. ^{[33
]}

Ahmad, A. ^{[207
,208
,237
]}

Ahmadov, F. ^{[15
,95
]}

Ahsan, M. ^{[65
]}

Aielli, G. ^{[181
,182
]}

Akesson, T. P. ^{[116
]}

Akimoto, G. ^{[215
,216
]}

Akimov, A. V. ^{[133
]}

Alam, M. A. ^{[110
]}

Albert, J. ^{[237
]}

Albrand, S. ^{[82
,83
,84
]}

Alconada Verzini, M. J. ^{[101
,102
]}

Aleksa, M. ^{[45
]}

Aleksandrov, I. N. ^{[95
]}

Alessandria, F. ^{[127
]}

Alexa, C. ^{[40
]}

Alexander, G. ^{[213
]}

Alexandre, G. ^{[74
]}

Alexopoulos, T. ^{[14
]}

Alhroob, M. ^{[226
,228
]}

Aliev, M. ^{[23
]}

Alimonti, G. ^{[127
]}

Alio, L. ^{[120
,121
]}

Alison, J. ^{[46
]}

Allbrooke, B. M. M. ^{[26
]}

Allison, L. J. ^{[103
]}

机构：

[1] Univ Adelaide, Sch Chem & Phys, Adelaide, SA, Australia

[2] SUNY Albany, Dept Phys, Albany, NY 12222 USA

[3] Univ Alberta, Dept Phys, Edmonton, AB, Canada

[4] Ankara Univ, Dept Phys, TR-06100 Ankara, Turkey

[5] Gazi Univ, Dept Phys, Ankara, Turkey

[6] TOBB Univ Econ & Technol, Div Phys, Ankara, Turkey

[7] Turkish Atom Energy Commiss, Ankara, Turkey

[8] CNRS, IN2P3, LAPP, Annecy Le Vieux, France

[9] Univ Savoie, Annecy Le Vieux, France

[10] Argonne Natl Lab, Div High Energy Phys, Argonne, IL 60439 USA

[11] Univ Arizona, Dept Phys, Tucson, AZ 85721 USA

[12] Univ Texas Arlington, Dept Phys, Arlington, TX 76019 USA

[13] Univ Athens, Dept Phys, Athens, Greece

[14] Natl Tech Univ Athens, Dept Phys, Zografos, Greece

[15] Azerbaijan Acad Sci, Inst Phys, Baku 370143, Azerbaijan

[16] Univ Autonoma Barcelona, Inst Fis Altes Energies, E-08193 Barcelona, Spain

[17] Univ Autonoma Barcelona, Dept Fis, E-08193 Barcelona, Spain

[18] Univ Belgrade, Inst Phys, Belgrade, Serbia

[19] Univ Belgrade, Vinca Inst Nucl Sci, Belgrade, Serbia

[20] Univ Bergen, Dept Phys & Technol, Bergen, Norway

[21] Univ Calif Berkeley, Lawrence Berkeley Natl Lab, Div Phys, Berkeley, CA 94720 USA

[22] Univ Calif Berkeley, Berkeley, CA 94720 USA

[23] Humboldt Univ, Dept Phys, Berlin, Germany

[24] Univ Bern, Albert Einstein Ctr Fundamental Phys, Bern, Switzerland

[25] Univ Bern, High Energy Phys Lab, Bern, Switzerland

[26] Univ Birmingham, Sch Phys & Astron, Birmingham, W Midlands, England

[27] Bogazici Univ, Dept Phys, Istanbul, Turkey

[28] Dogus Univ, Dept Phys, Istanbul, Turkey

[29] Gaziantep Univ, Dept Engn Phys, Gaziantep, Turkey

[30] Ist Nazl Fis Nucl, Sez Bologna, I-40126 Bologna, Italy

[31] Univ Bologna, Dipartimento Fis & Astron, Bologna, Italy

[32] Univ Bonn, Inst Phys, Bonn, Germany

[33] Boston Univ, Dept Phys, Boston, MA 02215 USA

[34] Brandeis Univ, Dept Phys, Waltham, MA 02254 USA

[35] Univ Fed Rio de Janeiro, COPPE, EE, IF, Rio De Janeiro, Brazil

[36] Fed Univ Juiz de Fora UFJF, Juiz De Fora, Brazil

[37] Fed Univ Sao Joao del Rei UFSJ, Sao Joao Del Rei, Brazil

[38] Univ Sao Paulo, Inst Fis, BR-01498 Sao Paulo, Brazil

[39] Brookhaven Natl Lab, Dept Phys, Upton, NY 11973 USA

[40] Natl Inst Phys & Nucl Engn, Bucharest, Romania

[41] Natl Inst Res & Dev Isotop & Mol Technol, Dept Phys, Cluj Napoca, Romania

[42] Univ Politehn Bucuresti, Bucharest, Romania

[43] Univ Buenos Aires, Dept Fis, Buenos Aires, DF, Argentina

[44] Univ Cambridge, Cavendish Lab, Cambridge CB3 0HE, England

[45] CERN, Geneva, Switzerland

[46] Univ Chicago, Enrico Fermi Inst, Chicago, IL 60637 USA

[47] Pontificia Univ Catolica Chile, Dept Fis, Santiago, Chile

[48] Univ Tecn Federico Santa Maria, Dept Fis, Valparaiso, Chile

[49] Chinese Acad Sci, Inst High Energy Phys, Beijing, Peoples R China

[50] Univ Sci & Technol China, Dept Modern Phys, Hefei, Anhui, Peoples R China

来源：

NEW JOURNAL OF PHYSICS | 2013年 / 15卷

基金：

巴西圣保罗研究基金会; 美国国家科学基金会; 加拿大自然科学与工程研究理事会;

关键词：

LEPTON PRODUCTION; EP COLLISIONS; QUARK;

D O I：

10.1088/1367-2630/15/9/093011

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

The ATLAS detector at the Large Hadron Collider is used to search for excited electrons and excited muons in the channel pp -> ll* -> ll gamma, assuming that excited leptons are produced via contact interactions. The analysis is based on 13 fb(-1) of pp collisions at a centre-of-mass energy of 8 TeV. No evidence for excited leptons is found, and a limit is set at the 95% credibility level on the cross section times branching ratio as a function of the excited-lepton mass m(l*). For m(l*) >= 0.8 TeV, the respective upper limits on sigma B(l(*) -> l gamma) are 0.75 and 0.90 fb for the e* and mu* searches. Limits on sigma B are converted into lower bounds on the compositeness scale 3. In the special case where Lambda = m(l*), excited-electron and excited-muon masses below 2.2 TeV are excluded.

引用

页数：32

共 44 条

[1] Aad G, 2013, EUR PHYS J C, V73, DOI 10.1140/epjc/s10052-013-2518-3
[2] Measurement of the inclusive isolated prompt photon cross section in pp collisions at √s=7 TeV with the ATLAS detector
Aad, G.
Abbott, B.
Abdallah, J.
Abdelalim, A. A.
Abdesselam, A.
Abdinov, O.
Abi, B.
Abolins, M.
Abramowicz, H.
Abreu, H.
Acerbi, E.
Acharya, B. S.
Ackers, M.
Adams, D. L.
Addy, T. N.
Adelman, J.
Aderholz, M.
Adomeit, S.
Adragna, P.
Adye, T.
Aefsky, S.
Aguilar-Saavedra, J. A.
Aharrouche, M.
Ahlen, S. P.
Ahles, F.
Ahmad, A.
Ahsan, M.
Aielli, G.
Akdogan, T.
Akesson, T. P. A.
Akimoto, G.
Akimov, A. V.
Alam, M. S.
Alam, M. A.
Albrand, S.
Aleksa, M.
Aleksandrov, I. N.
Aleppo, M.
Alessandria, F.
Alexa, C.
Alexander, G.
Alexandre, G.
Alexopoulos, T.
Alhroob, M.
Aliev, M.
Alimonti, G.
Alison, J.
Aliyev, M.
Allport, P. P.
Allwood-Spiers, S. E.
[J]. PHYSICAL REVIEW D, 2011, 83 (05)
[3] Electron performance measurements with the ATLAS detector using the 2010 LHC proton-proton collision data
Aad, G.
Abbott, B.
Abdallah, J.
Abdelalim, A. A.
Abdesselam, A.
Abdinov, O.
Abi, B.
Abolins, M.
Abramowicz, H.
Abreu, H.
Acerbi, E.
Acharya, B. S.
Adams, D. L.
Addy, T. N.
Adelman, J.
Aderholz, M.
Adomeit, S.
Adragna, P.
Adye, T.
Aefsky, S.
Aguilar-Saavedra, J. A.
Aharrouche, M.
Ahlen, S. P.
Ahles, F.
Ahmad, A.
Ahsan, M.
Aielli, G.
Akdogan, T.
Akesson, T. P.
Akimoto, G.
Akimov, A. V.
Akiyama, A.
Alam, M. S.
Alam, M. A.
Albert, J.
Albrand, S.
Aleksa, M.
Aleksandrov, I. N.
Alessandria, F.
Alexa, C.
Alexander, G.
Alexandre, G.
Alexopoulos, T.
Alhroob, M.
Aliev, M.
Alimonti, G.
Alison, J.
Aliyev, M.
Allport, P. P.
Allwood-Spiers, S. E.
[J]. EUROPEAN PHYSICAL JOURNAL C, 2012, 72 (03): : 1 - 46
[4] Aad G, 2012, EUR PHYS J C, V72, DOI 10.1140/epjc/s10052-011-1844-6
[5] The ATLAS Simulation Infrastructure
Aad, G.
Abbott, B.
Abdallah, J.
Abdelalim, A. A.
Abdesselam, A.
Abdinov, O.
Abi, B.
Abolins, M.
Abramowicz, H.
Abreu, H.
Acharya, B. S.
Adams, D. L.
Addy, T. N.
Adelman, J.
Adorisio, C.
Adragna, P.
Adye, T.
Aefsky, S.
Aguilar-Saavedra, J. A.
Aharrouche, M.
Ahlen, S. P.
Ahles, F.
Ahmad, A.
Ahmed, H.
Ahsan, M.
Aielli, G.
Akdogan, T.
Akesson, T. P.
Akimoto, G.
Akimov, A. V.
Aktas, A.
Alam, M. S.
Alam, M. A.
Albrand, S.
Aleksa, M.
Aleksandrov, I. N.
Alexa, C.
Alexander, G.
Alexandre, G.
Alexopoulos, T.
Alhroob, M.
Aliev, M.
Alimonti, G.
Alison, J.
Aliyev, M.
Allport, P. P.
Allwood-Spiers, S. E.
Almond, J.
Aloisio, A.
Alon, R.
[J]. EUROPEAN PHYSICAL JOURNAL C, 2010, 70 (03): : 823 - 874
[6] Search for excited electrons in ep collisions at HERA
Aaron, F. D.
Alexa, C.
Andreev, V.
Antunovic, B.
Aplin, S.
Asmone, A.
Astvatsatourov, A.
Bacchetta, A.
Backovic, S.
Baghdasaryan, A.
Baranov, P.
Barrelet, E.
Bartel, W.
Beckingham, M.
Begzsuren, K.
Behnke, O.
Belousov, A.
Berger, N.
Bizot, J. C.
Boenig, M. -O.
Boudry, V.
Bozovic-Jelisavcic, I.
Bracinik, J.
Brandt, G.
Brinkmann, M.
Brisson, V.
Bruncko, D.
Bunyatyan, A.
Buschhorn, G.
Bystritskaya, L.
Campbell, A. J.
Avila, K. B. Cantun
Cassol-Brunner, F.
Cerny, K.
Cerny, V.
Chekelian, V.
Cholewa, A.
Contreras, J. G.
Coughlan, J. A.
Cozzika, G.
Cvach, J.
Dainton, J. B.
Daum, K.
Deak, M.
de Boer, Y.
Delcourt, B.
Del Degan, M.
Delvax, J.
De Roeck, A.
De Wolf, E. A.
[J]. PHYSICS LETTERS B, 2008, 666 (02) : 131 - 139
[7] Search for excited electrons in p(p)over-bar collisions at √s=1.96 TeV
Abazov, V. M.
Abbott, B.
Abolins, M.
Acharya, B. S.
Adams, M.
Adams, T.
Aguilo, E.
Ahn, S. H.
Ahsan, M.
Alexeev, G. D.
Alkhazov, G.
Alton, A.
Alverson, G.
Alves, G. A.
Anastasoaie, M.
Ancu, L. S.
Andeen, T.
Anderson, S.
Andrieu, B.
Anzelc, M. S.
Arnoud, Y.
Arov, M.
Arthaud, M.
Askew, A.
Asman, B.
Jesus, A. C. S. Assis
Atramentov, O.
Autermann, C.
Avila, C.
Ay, C.
Badaud, F.
Baden, A.
Bagby, L.
Baldin, B.
Bandurin, D. V.
Banerjee, S.
Banerjee, P.
Barberis, E.
Barfuss, A. -F.
Bargassa, P.
Baringer, P.
Barreto, J.
Bartlett, J. F.
Bassler, U.
Bauer, D.
Beale, S.
Bean, A.
Begalli, M.
Begel, M.
Belanger-Champagne, C.
[J]. PHYSICAL REVIEW D, 2008, 77 (09)
[8] Search for excited muons in p(p)over-bar collisions at √s=1.96 TeV
Abazov, V. M.
Abbott, B.
Abolins, M.
Acharya, B. S.
Adams, M.
Adams, T.
Agelou, M.
Agram, J. -L.
Ahn, S. H.
Ahsan, M.
Alexeev, G. D.
Alkhazov, G.
Alton, A.
Alverson, G.
Alves, G. A.
Anastasoaie, M.
Andeen, T.
Anderson, S.
Andrieu, B.
Anzelc, M. S.
Arnoud, Y.
Arov, M.
Askew, A.
Asman, B.
Jesus, A. C. S. Assis
Atramentov, O.
Autermann, C.
Avila, C.
Ay, C.
Badaud, F.
Baden, A.
Bagby, L.
Baldin, B.
Bandurin, D. V.
Banerjee, P.
Banerjee, S.
Barberis, E.
Bargassa, P.
Baringer, P.
Barnes, C.
Barreto, J.
Bartlett, J. F.
Bassler, U.
Bauer, D.
Bean, A.
Begalli, M.
Begel, M.
Belanger-Champagne, C.
Bellavance, A.
Benitez, J. A.
[J]. PHYSICAL REVIEW D, 2006, 73 (11):
[9] Abbiendi G, 2000, EUR PHYS J C, V14, P73, DOI [10.1007/s100520050734, 10.1007/s100520000345]
[10] Abdallah J, 2006, EUR PHYS J C, V46, P277, DOI 10.1140/epjc/s2006-02501-3

← 1 2 3 4 5 →