Dr. Karolos Potamianos: Publications

The CMS Collaboration

Nuclear Physics A 830:1-4 (2009) 946-956

Authors:

D Abbaneo, G Abbiendi, M Abbrescia, B Abelev, D Acosta, JG Acosta, O Actis, N Adam, W Adam, T Adams, MR Adams, A Adiguzel, V Adler, P Adzic, L Agostino, JL Agram, M Aguilar-Benitez, D Aharoni, M Ahmad, I Ahmed, S Ahuja, N Akchurin, B Akgun, U Akgun, IV Akin, E Alagoz, C Albajar, EA Albayrak, S Albergo, M Albrow, J Alcaraz Maestre, J Alexander, T Aliev, P Allfrey, N Almeida, G Altenhöfer, I Altsybeev, RL Alvarez, B Alver, G Alverson, GA Alves, M Alwarawrah, N Amapane, F Ambroglini, C Amsler, G Anagnostou, A Anastassov, M Anderson, J Andrea, V Andreev, Y Andreev, IM Anghel, L Antonelli, Z Antunovic, L Apanasevich, G Apollinari, A Aranyi, P Arce, R Arcidiacono, MW Arenton, H Arfaei, S Argiro, K Arisaka, M Arneodo, J Asaadi, MI Asghar, S Ashby, A Ashimova, A Askew, AC Assis Jesus, M Atac, O Atramentov, A Attikis, E Auffray, A Aurisano, C Autermann, P Avery, A Avetisyan, A Ayhan, I Azhgirey, T Aziz, P Azzi, P Azzurri, M Baarmand, J Babb, N Bacchetta, W Bacchi, M Bachtis, D Baden, P Baesso, S Baffioni, G Bagliesi, P Baillon, R Bainbridge, H Bakhshiansohi, MN Bakirci, JA Bakken, M Balazs, G Ball, A Ball

Observation of electroweak single top-quark production

Physical Review Letters 103:9 (2009)

Authors:

T Aaltonen, J Adelman, T Akimoto, B Álvarez González, S Amerio, D Amidei, A Anastassov, A Annovi, J Antos, G Apollinari, A Apresyan, T Arisawa, A Artikov, W Ashmanskas, A Attal, A Aurisano, F Azfar, W Badgett, A Barbaro-Galtieri, VE Barnes, BA Barnett, P Barria, V Bartsch, G Bauer, PH Beauchemin, F Bedeschi, D Beecher, S Behari, G Bellettini, J Bellinger, D Benjamin, A Beretvas, J Beringer, A Bhatti, M Binkley, D Isello, B Blumenfeld, A Bocci, A Bodek, V Boisvert, G Bolla, D Bortoletto, J Boudreau, A Boveia, B Brau, A Bridgeman, L Brigliadori, C Bromberg, E Brubaker, J Budagov, HS Budd, S Budd, S Burke, K Burkett, G Busetto, P Bussey, A Buzatu, KL Byrum, S Cabrera, C Calancha, M Campanelli, M Campbell, F Canelli, A Canepa, B Carls, D Carlsmith, R Carosi, S Carrillo, S Carron, B Casal, M Casarsa, A Castro, P Catastini, D Cauz, V Cavaliere, M Cavalli-Sforza, A Cerri, L Cerrito, SH Chang, YC Chen, M Chertok, G Chiarelli, G Chlachidze, F Chlebana, K Cho, D Chokheli, JP Chou, G Choudalakis, SH Chuang, K Chung, WH Chung, YS Chung, T Chwalek, CI Ciobanu, MA Ciocci, A Clark, D Clark, G Compostella, ME Convery, J Conway

Abstract:

We report the observation of single top-quark production using 3.2fb-1 of pp̄ collision data with s=1.96TeV collected by the Collider Detector at Fermilab. The significance of the observed data is 5.0 standard deviations, and the expected sensitivity for standard model production and decay is in excess of 5.9 standard deviations. Assuming mt=175GeV/c2, we measure a cross section of 2.3-0.5+0.6(stat+syst)pb, extract the CKM matrix-element value |Vtb|=0.91±0.11(stat+syst)±0.07(theory), and set the limit |Vtb|>0.71 at the 95% C.L. © 2009 The American Physical Society.

Measurement of the Inclusive Isolated Prompt Photon Cross Section in $p\barp$ Collisions at $\sqrts=1.96$ TeV using the CDF Detector

Phys. Rev. D 80 (2009) 111106-111106

Authors:

T Aaltonen, others

Search for the Higgs Boson Produced in Association with Z→ℓ+ℓ- in pp̄ Collisions at s=1.96TeV

Physical Review Letters 101:25 (2008)

Authors:

T Aaltonen, J Adelman, T Akimoto, MG Albrow, B Álvarez González, S Amerio, D Amidei, A Anastassov, A Annovi, J Antos, G Apollinari, A Apresyan, T Arisawa, A Artikov, W Ashmanskas, A Attal, A Aurisano, F Azfar, P Azzurri, W Badgett, A Barbaro-Galtieri, VE Barnes, BA Barnett, V Bartsch, G Bauer, PH Beauchemin, F Bedeschi, P Bednar, D Beecher, S Behari, G Bellettini, J Bellinger, D Benjamin, A Beretvas, J Beringer, A Bhatti, M Binkley, D Bisello, I Bizjak, RE Blair, C Blocker, B Blumenfeld, A Bocci, A Bodek, V Boisvert, G Bolla, D Bortoletto, J Boudreau, A Boveia, B Brau, A Bridgeman, L Brigliadori, C Bromberg, E Brubaker, J Budagov, HS Budd, S Budd, K Burkett, G Busetto, P Bussey, A Buzatu, KL Byrum, S Cabrera, C Calancha, M Campanelli, M Campbell, F Canelli, A Canepa, D Carlsmith, R Carosi, S Carrillo, S Carron, B Casal, M Casarsa, A Castro, P Catastini, D Cauz, V Cavaliere, M Cavalli-Sforza, A Cerri, L Cerrito, SH Chang, YC Chen, M Chertok, G Chiarelli, G Chlachidze, F Chlebana, K Cho, D Chokheli, JP Chou, G Choudalakis, SH Chuang, K Chung, WH Chung, YS Chung, CI Ciobanu, MA Ciocci, A Clark, D Clark, G Compostella

Abstract:

We present a search for the Higgs boson in the process qq̄→ ZH→ℓ+ℓ-bb̄. The analysis uses an integrated luminosity of 1fb-1 of pp̄ collisions produced at s=1.96TeV and accumulated by the upgraded Collider Detector at Fermilab (CDF II). We employ artificial neural networks both to correct jets mismeasured in the calorimeter and to distinguish the signal kinematic distributions from those of the background. We see no evidence for Higgs boson production, and set 95% C.L. upper limits on σZHB(H→bb̄), ranging from 1.5 to 1.2 pb for a Higgs boson mass (mH) of 110 to 150GeV/c2. © 2008 The American Physical Society.

Search for standard model Higgs boson production in association with a W boson at CDF

Physical Review D - Particles, Fields, Gravitation and Cosmology 78:3 (2008)

Authors:

Abstract:

We present a search for standard model Higgs boson production in association with a W boson in proton-antiproton collisions (pp̄→ W±H→ νbb̄) at a center of mass energy of 1.96 TeV. The search employs data collected with the CDF II detector which correspond to an integrated luminosity of approximately 1fb-1. We select events consistent with a signature of a single lepton (e±/μ±), missing transverse energy, and two jets. Jets corresponding to bottom quarks are identified with a secondary vertex tagging method and a neural network filter technique. The observed number of events and the dijet mass distributions are consistent with the standard model background expectations, and we set 95% confidence level upper limits on the production cross section times branching ratio ranging from 3.9 to 1.3 pb for Higgs boson masses from 110 to 150GeV/c2, respectively. © 2008 The American Physical Society.

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