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Drift Time Measurement in the ATLAS Liquid Argon Electromagnetic Calorimeter using Cosmic Muons

Academic Article
Publication Date:
2010
Citation:
Drift Time Measurement in the ATLAS Liquid Argon Electromagnetic Calorimeter using Cosmic Muons / G. Aad, B. Abbott, J. Abdallah, A.A. Abdelalim, A. Abdesselam, O. Abdinov, B. Abi, M. Abolins, H. Abramowicz, H. Abreu, B.S. Acharya, D.L. Adams, T.N. Addy, J. Adelman, C. Adorisio, P. Adragna, T. Adye, S. Aefsky, J.A. Aguilar Saavedra, M. Aharrouche, S.P. Ahlen, F. Ahles, A. Ahmad, H. Ahmed, M. Ahsan, G. Aielli, T. Akdogan, T.P.A. Åkesson, G. Akimoto, A.V. Akimov, A. Aktas, M.S. Alam, M.A. Alam, J. Albert, S. Albrand, M. Aleksa, I.N. Aleksandrov, C. Alexa, G. Alexander, G. Alexandre, T. Alexopoulos, M. Alhroob, M. Aliev, G. Alimonti, J. Alison, M. Aliyev, P.P. Allport, S.E. Allwood Spiers, J. Almond, A. Aloisio, R. Alon, A. Alonso, M.G. Alviggi, K. Amako, C. Amelung, A. Amorim, G. Amorós, N. Amram, C. Anastopoulos, T. Andeen, C.F. Anders, K.J. Anderson, A. Andreazza, V. Andrei, X.S. Anduaga, A. Angerami, F. Anghinolfi, N. Anjos, A. Antonaki, M. Antonelli, S. Antonelli, J. Antos, B. Antunovic, F. Anulli, S. Aoun, G. Arabidze, I. Aracena, Y. Arai, A.T.H. Arce, J.P. Archambault, S. Arfaoui, J.F. Arguin, T. Argyropoulos, M. Arik, A.J. Armbruster, O. Arnaez, C. Arnault, A. Artamonov, D. Arutinov, M. Asai, S. Asai, R. Asfandiyarov, S. Ask, B. Åsman, D. Asner, L. Asquith, K. Assamagan, A. Astbury, A. Astvatsatourov, G. Atoian, B. Auerbach, K. Augsten, M. Aurousseau, N. Austin, G. Avolio, R. Avramidou, D. Axen, C. Ay, G. Azuelos, Y. Azuma, M.A. Baak, A. Bach, H. Bachacou, K. Bachas, M. Backes, E. Badescu, P. Bagnaia, Y. Bai, T. Bain, J.T. Baines, O.K. Baker, M.D. Baker, S. Baker, F. Baltasar Dos Santos Pedrosa, E. Banas, P. Banerjee, S. Banerjee, D. Banfi, A. Bangert, V. Bansal, S.P. Baranov, S. Baranov, A. Barashkou, T. Barber, E.L. Barberio, D. Barberis, M. Barbero, D.Y. Bardin, T. Barillari, M. Barisonzi, T. Barklow, N. Barlow, B.M. Barnett, R.M. Barnett, A. Baroncelli, A.J. Barr, F. Barreiro, J. Barreiro Guimarães da Costa, P. Barrillon, R. Bartoldus, D. Bartsch, R.L. Bates, L. Batkova, J.R. Batley, A. Battaglia, M. Battistin, F. Bauer, H.S. Bawa, M. Bazalova, B. Beare, T. Beau, P.H. Beauchemin, R. Beccherle, N. Becerici, P. Bechtle, G.A. Beck, H.P. Beck, M. Beckingham, K.H. Becks, A.J. Beddall, A. Beddall, V.A. Bednyakov, C. Bee, M. Begel, S. Behar Harpaz, P.K. Behera, M. Beimforde, C. Belanger Champagne, P.J. Bell, W.H. Bell, G. Bella, L. Bellagamba, F. Bellina, M. Bellomo, A. Belloni, K. Belotskiy, O. Beltramello, S. Ben Ami, O. Benary, D. Benchekroun, M. Bendel, B.H. Benedict, N. Benekos, Y. Benhammou, G.P. Benincasa, D.P. Benjamin, M. Benoit, J.R. Bensinger, K. Benslama, S. Bentvelsen, M. Beretta, D. Berge, E. Bergeaas Kuutmann, N. Berger, F. Berghaus, E. Berglund, J. Beringer, P. Bernat, R. Bernhard, C. Bernius, T. Berry, A. Bertin, M.I. Besana, N. Besson, S. Bethke, R.M. Bianchi, M. Bianco, O. Biebel, J. Biesiada, M. Biglietti, H. Bilokon, M. Bindi, S. Binet, A. Bingul, C. Bini, C. Biscarat, U. Bitenc, K.M. Black, R.E. Blair, J.B. Blanchard, G. Blanchot, C. Blocker, A. Blondel, W. Blum, U. Blumenschein, G.J. Bobbink, A. Bocci, M. Boehler, J. Boek, N. Boelaert, S. Boser, J.A. Bogaerts, A. Bogouch, C. Bohm, J. Bohm, V. Boisvert, T. Bold, V. Boldea, A. Boldyrev, V.G. Bondarenko, M. Bondioli, M. Boonekamp, S. Bordoni, C. Borer, A. Borisov, G. Borissov, I. Borjanovic, S. Borroni, K. Bos, D. Boscherini, M. Bosman, H. Boterenbrood, J. Bouchami, J. Boudreau, E.V. Bouhova Thacker, C. Boulahouache, C. Bourdarios, J. Boyd, I.R. Boyko, I. Bozovic Jelisavcic, J. Bracinik, A. Braem, P. Branchini, G.W. Brandenburg, A. Brandt, G. Brandt, O. Brandt, U. Bratzler, B. Brau, J.E. Brau, H.M. Braun, B. Brelier, J. Bremer, R. Brenner, S. Bressler, D. Britton, F.M. Brochu, I. Brock, R. Brock, E. Brodet, C. Bromberg, G. Brooijmans, W.K. Brooks, G. Brown, P.A. Bruckman de Renstrom, D. Bruncko, R. Bruneliere, S. Brunet, A. Bruni, G. Bruni, M. Bruschi, F. Bucci, J. Buchanan, P. Buchholz, A.G. Buckley, I.A.
abstract:
The ionization signals in the liquid argon of the ATLAS electromagnetic calorimeter are studied in detail using cosmic muons. In particular, the drift time of the ionization electrons is measured and used to assess the intrinsic uniformity of the calorimeter gaps and estimate its impact on the constant term of the energy resolution. The drift times of electrons in the cells of the second layer of the calorimeter are uniform at the level of 1.3 % in the barrel and 2.8 % in the endcaps. This leads to an estimated contribution to the constant term of (0.29 +0.05 -0.04) % in the barrel and (0.54 +0.06 -0.04) % in the endcaps. The same data are used to measure the drift velocity of ionization electrons in liquid argon, which is found to be 4.61 +- 0.07 mm/\mu s at 88.5 K and 1 kV/mm.
IRIS type:
01 - Articolo su periodico
Keywords:
LHC ; ATLAS ; Cosmic muons ; electromagnetic calorimeter ; drift time
List of contributors:
G. Aad, B. Abbott, J. Abdallah, A.A. Abdelalim, A. Abdesselam, O. Abdinov, B. Abi, M. Abolins, H. Abramowicz, H. Abreu, B.S. Acharya, D.L. Adams, T.N. Addy, J. Adelman, C. Adorisio, P. Adragna, T. Adye, S. Aefsky, J.A. Aguilar Saavedra, M. Aharrouche, S.P. Ahlen, F. Ahles, A. Ahmad, H. Ahmed, M. Ahsan, G. Aielli, T. Akdogan, T.P.A. Åkesson, G. Akimoto, A.V. Akimov, A. Aktas, M.S. Alam, M.A. Alam, J. Albert, S. Albrand, M. Aleksa, I.N. Aleksandrov, C. Alexa, G. Alexander, G. Alexandre, T. Alexopoulos, M. Alhroob, M. Aliev, G. Alimonti, J. Alison, M. Aliyev, P.P. Allport, S.E. Allwood Spiers, J. Almond, A. Aloisio, R. Alon, A. Alonso, M.G. Alviggi, K. Amako, C. Amelung, A. Amorim, G. Amorós, N. Amram, C. Anastopoulos, T. Andeen, C.F. Anders, K.J. Anderson, A. Andreazza, V. Andrei, X.S. Anduaga, A. Angerami, F. Anghinolfi, N. Anjos, A. Antonaki, M. Antonelli, S. Antonelli, J. Antos, B. Antunovic, F. Anulli, S. Aoun, G. Arabidze, I. Aracena, Y. Arai, A.T.H. Arce, J.P. Archambault, S. Arfaoui, J.F. Arguin, T. Argyropoulos, M. Arik, A.J. Armbruster, O. Arnaez, C. Arnault, A. Artamonov, D. Arutinov, M. Asai, S. Asai, R. Asfandiyarov, S. Ask, B. Åsman, D. Asner, L. Asquith, K. Assamagan, A. Astbury, A. Astvatsatourov, G. Atoian, B. Auerbach, K. Augsten, M. Aurousseau, N. Austin, G. Avolio, R. Avramidou, D. Axen, C. Ay, G. Azuelos, Y. Azuma, M.A. Baak, A. Bach, H. Bachacou, K. Bachas, M. Backes, E. Badescu, P. Bagnaia, Y. Bai, T. Bain, J.T. Baines, O.K. Baker, M.D. Baker, S. Baker, F. Baltasar Dos Santos Pedrosa, E. Banas, P. Banerjee, S. Banerjee, D. Banfi, A. Bangert, V. Bansal, S.P. Baranov, S. Baranov, A. Barashkou, T. Barber, E.L. Barberio, D. Barberis, M. Barbero, D.Y. Bardin, T. Barillari, M. Barisonzi, T. Barklow, N. Barlow, B.M. Barnett, R.M. Barnett, A. Baroncelli, A.J. Barr, F. Barreiro, J. Barreiro Guimarães da Costa, P. Barrillon, R. Bartoldus, D. Bartsch, R.L. Bates, L. Batkova, J.R. Batley, A. Battaglia, M. Battistin, F. Bauer, H.S. Bawa, M. Bazalova, B. Beare, T. Beau, P.H. Beauchemin, R. Beccherle, N. Becerici, P. Bechtle, G.A. Beck, H.P. Beck, M. Beckingham, K.H. Becks, A.J. Beddall, A. Beddall, V.A. Bednyakov, C. Bee, M. Begel, S. Behar Harpaz, P.K. Behera, M. Beimforde, C. Belanger Champagne, P.J. Bell, W.H. Bell, G. Bella, L. Bellagamba, F. Bellina, M. Bellomo, A. Belloni, K. Belotskiy, O. Beltramello, S. Ben Ami, O. Benary, D. Benchekroun, M. Bendel, B.H. Benedict, N. Benekos, Y. Benhammou, G.P. Benincasa, D.P. Benjamin, M. Benoit, J.R. Bensinger, K. Benslama, S. Bentvelsen, M. Beretta, D. Berge, E. Bergeaas Kuutmann, N. Berger, F. Berghaus, E. Berglund, J. Beringer, P. Bernat, R. Bernhard, C. Bernius, T. Berry, A. Bertin, M.I. Besana, N. Besson, S. Bethke, R.M. Bianchi, M. Bianco, O. Biebel, J. Biesiada, M. Biglietti, H. Bilokon, M. Bindi, S. Binet, A. Bingul, C. Bini, C. Biscarat, U. Bitenc, K.M. Black, R.E. Blair, J.B. Blanchard, G. Blanchot, C. Blocker, A. Blondel, W. Blum, U. Blumenschein, G.J. Bobbink, A. Bocci, M. Boehler, J. Boek, N. Boelaert, S. Boser, J.A. Bogaerts, A. Bogouch, C. Bohm, J. Bohm, V. Boisvert, T. Bold, V. Boldea, A. Boldyrev, V.G. Bondarenko, M. Bondioli, M. Boonekamp, S. Bordoni, C. Borer, A. Borisov, G. Borissov, I. Borjanovic, S. Borroni, K. Bos, D. Boscherini, M. Bosman, H. Boterenbrood, J. Bouchami, J. Boudreau, E.V. Bouhova Thacker, C. Boulahouache, C. Bourdarios, J. Boyd, I.R. Boyko, I. Bozovic Jelisavcic, J. Bracinik, A. Braem, P. Branchini, G.W. Brandenburg, A. Brandt, G. Brandt, O. Brandt, U. Bratzler, B. Brau, J.E. Brau, H.M. Braun, B. Brelier, J. Bremer, R. Brenner, S. Bressler, D. Britton, F.M. Brochu, I. Brock, R. Brock, E. Brodet, C. Bromberg, G. Brooijmans, W.K. Brooks, G. Brown, P.A. Bruckman de Renstrom, D. Bruncko, R. Bruneliere, S. Brunet, A. Bruni, G. Bruni, M. Bruschi, F. Bucci, J. Buchanan, P. Buchholz, A.G. Buckley, I.A. Budagov, B. Budick, V.B. Uscher, L. Bugge, O. Bulekov, M. Bunse, T. Buran, H. Burckhart, S. Burdi
Authors of the University:
ANDREAZZA ATTILIO ( author )
CARMINATI LEONARDO CARLO ( author )
D'AURIA SAVERIO ( author )
DELL'ASTA LIDIA ( author )
FANTI MARCELLO ( author )
Link to information sheet:
https://air.unimi.it/handle/2434/149249
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