Future Colliders

Research group

Research theme

Sub department

About

From the LHC to future colliders

European Physical Journal C 66:3 (2010) 525-583

Authors:

A de Roeck, J Ellis, C Grojean, S Heinemeyer, K Jakobs, G Weiglein, J Wells, G Azuelos, S Dawson, B Gripaios, T Han, J Hewett, M Lancaster, C Mariotti, F Moortgat, G Moortgat-Pick, G Polesello, S Riemann, M Schumacher, K Assamagan, P Bechtle, M Carena, G Chachamis, KF Chen, S De Curtis, K Desch, M Dittmar, H Dreiner, M Dührssen, B Foster, MT Frandsen, A Giammanco, R Godbole, S Gopalakrishna, P Govoni, J Gunion, W Hollik, WS Hou, G Isidori, A Juste, J Kalinowski, A Korytov, E Kou, S Kraml, M Krawczyk, A Martin, D Milstead, V Morton-Thurtle, K Moenig, B Mele, E Ozcan, M Pieri, T Plehn, L Reina, E Richter-Was, T Rizzo, K Rolbiecki, F Sannino, M Schram, J Smillie, S Sultansoy, J Tattersall, P Uwer, B Webber, P Wienemann

Abstract:

Discoveries at the LHC will soon set the physics agenda for future colliders. This report of a CERN Theory Institute includes the summaries of Working Groups that reviewed the physics goals and prospects of LHC running with 10 to 300 fb-1 of integrated luminosity, of the proposed sLHC luminosity upgrade, of the ILC, of CLIC, of the LHeC and of a muon collider. The four Working Groups considered possible scenarios for the first 10 fb-1 of data at the LHC in which (i) a state with properties that are compatible with a Higgs boson is discovered, (ii) no such state is discovered either because the Higgs properties are such that it is difficult to detect or because no Higgs boson exists, (iii) a missing-energy signal beyond the Standard Model is discovered as in some supersymmetric models, and (iv) some other exotic signature of new physics is discovered. In the contexts of these scenarios, the Working Groups reviewed the capabilities of the future colliders to study in more detail whatever new physics may be discovered by the LHC. Their reports provide the particle physics community with some tools for reviewing the scientific priorities for future colliders after the LHC produces its first harvest of new physics from multi-TeV collisions. © Springer-Verlag / Società Italiana di Fisica 2010.
More details from the publisher

Governance of the international linear collider project

Proceedings of Science 120 (2010)

Authors:

B Foster, B Barish, JP Delahaye, U Dosselli, E Elsen, M Harrison, J Mnich, JM Paterson, F Richard, S Stapnes, A Suzuki, G Wormser, S Yamada

Abstract:

Governance models for the International Linear Collider Project are examined in the light of experience from similar international projects around the world. Recommendations for one path which could be followed to realise the ILC successfully are outlined.
More details

Identification and filtering of uncharacteristic noise in the CMS hadron calorimeter

Journal of Instrumentation 5:3 (2010)

Authors:

S Chatrchyan, V Khachatryan, AM Sirunyan, W Adam, B Arnold, H Bergauer, T Bergauer, M Dragicevic, M Eichberger, J Erö, M Friedl, R Frühwirth, VM Ghete, J Hammer, S Hansel, M Hoch, N Hörmann, J Hrubec, M Jeitler, G Kasieczka, K Kastner, M Krammer, D Liko, I De Magrans Abril, I Mikulec, F Mittermayr, B Neuherz, M Oberegger, M Padrta, M Pernicka, H Rohringer, S Schmid, R Schöfbeck, T Schreiner, R Stark, H Steininger, J Strauss, A Taurok, F Teischinger, T Themel, D Uhl, P Wagner, W Waltenberger, G Walzel, E Widl, CE Wulz, V Chekhovsky, O Dvornikov, I Emeliantchik, A Litomin, V Makarenko, I Marfin, V Mossolov, N Shumeiko, A Solin, R Stefanovitch, J Suarez Gonzalez, A Tikhonov, A Fedorov, A Karneyeu, M Korzhik, V Panov, R Zuyeuski, P Kuchinsky, W Beaumont, L Benucci, M Cardaci, EA De Wolf, E Delmeire, D Druzhkin, M Hashemi, X Janssen, T Maes, L Mucibello, S Ochesanu, R Rougny, M Selvaggi, H Van Haevermaet, P Van Mechelen, N Van Remortel, V Adler, S Beauceron, S Blyweert, J D'Hondt, S De Weirdt, O Devroede, J Heyninck, A Kalogeropoulos, J Maes, M Maes, MU Mozer, S Tavernier, W Van Doninck, P Van Mulders, I Villella, O Bouhali, EC Chabert, O Charaf, B Clerbaux, G De Lentdecker

Abstract:

Commissioning studies of the CMS hadron calorimeter have identified sporadic uncharacteristic noise and a small number of malfunctioning calorimeter channels. Algorithms have been developed to identify and address these problems in the data. The methods have been tested on cosmic ray muon data, calorimeter noise data, and single beam data collected with CMS in 2008. The noise rejection algorithms can be applied to LHC collision data at the trigger level or in the offline analysis. The application of the algorithms at the trigger level is shown to remove 90% of noise events with fake missing transverse energy above 100 GeV, which is sufficient for the CMS physics trigger operation. © 2010 IOP Publishing Ltd and SISSA.
More details from the publisher

Measurement of D+ and Λc+ production in deep inelastic scattering at HERA

Journal of High Energy Physics 2010:11 (2010)

Authors:

H Abramowicz, I Abt, L Adamczyk, M Adamus, R Aggarwal, S Antonelli, P Antonioli, A Antonov, M Arneodo, V Aushev, Y Aushev, O Bachynska, A Bamberger, AN Barakbaev, G Barbagli, G Bari, F Barreiro, D Bartsch, M Basile, O Behnke, J Behr, U Behrens, L Bellagamba, A Bertolin, S Bhadra, M Bindi, C Blohm, T Bołd, EG Boos, M Borodin, K Borras, D Boscherini, D Bot, SK Boutle, I Brock, E Brownson, R Brugnera, N Brümmer, A Bruni, G Bruni, B Brzozowska, PJ Bussey, JM Butterworth, B Bylsma, A Caldwell, M Capua, R Carlin, CD Catterall, S Chekanov, J Chwastowski, J Ciborowski, R Ciesielski, L Cifarelli, F Cindolo, A Contin, AM Cooper-Sarkar, N Coppola, M Corradi, F Corriveau, M Costa, G D'Agostini, F Dal Corso, J De Favereau, J Del Peso, RK Dementiev, S De Pasquale, M Derrick, RCE Devenish, D Dobur, BA Dolgoshein, AT Doyle, V Drugakov, LS Durkin, S Dusini, Y Eisenberg, PF Ermolov, A Eskreys, S Fang, S Fazio, J Ferrando, MI Ferrero, J Figiel, M Forrest, B Foster, S Fourletov, G Gach, A Galas, E Gallo, A Garfagnini, A Geiser, I Gialas, LK Gladilin, D Gladkov, C Glasman, O Gogota, YA Golubkov, P Göttlicher, I Grabowska-Bołd, J Grebenyuk, I Gregor

Abstract:

Charm production in deep inelastic scattering has been measured with the ZEUS detector at HERA using an integrated luminosity of 120 pb-1. The hadronic decay channels D+ → KS0π+, Λc+ → pKS0 and Λc+ → Λπ+, and their charge conjugates, were reconstructed. The presence of a neutral strange hadron in the final state reduces the combinatorial background and extends the measured sensitivity into the low transverse momentum region. The kinematic range is 0 < pT (D+,Λc+ ) < 10GeV, |η(D+,Λc+ )| < 1.6, 1.5 < Q2 < 1000GeV2 and 0.02 < y < 0.7. Inclusive and differential cross sections for the production of D+ mesons are compared to next-to-leading-order QCD predictions. The fraction of c quarks hadronising into Λc+ baryons is extracted.
More details from the publisher

Measurement of J/ψ photoproduction at large momentum transfer at HERA

Journal of High Energy Physics 2010:5 (2010)

Authors:

S Chekanov, M Derrick, S Magill, B Musgrave, D Nicholass, J Repond, R Yoshida, P Antonioli, G Bari, L Bellagamba, D Boscherini, A Bruni, G Bruni, F Cindolo, M Corradi, G Iacobucci, A Margotti, R Nania, A Polini, S Antonelli, M Basile, M Bindi, L Cifarelli, A Contin, S De Pasquale, G Sartorelli, A Zichichi, D Bartsch, I Brock, H Hartmann, E Hilger, HP Jakob, M Jüingst, AE Nuncio-Quiroz, E Paul, U Samson, V Schönberg, R Shehzadi, M Wlasenko, JD Morris, M Kaur, P Kaur, I Singh, M Capua, S Fazio, A Mastroberardino, M Schioppa, G Susinno, E Tassi, JY Kim, ZA Ibrahim, FM Idris, B Kamaluddin, WAT Wan Abdullah, Y Ning, Z Ren, F Sciulli, J Chwastowski, A Eskreys, J Figiel, A Galas, K Olkiewicz, B Pawlik, P Stopa, L Zawiejski, L Adamczyk, T Bołd, I Grabowska-Bołd, D Kisielewska, J Łukasik, M Przybycień, L Suszycki, A Kotański, W Słomiński, O Bachynska, O Behnke, J Behr, U Behrens, C Blohm, K Borras, D Bot, R Ciesielski, N Coppola, S Fang, A Geiser, P Göttlicher, J Grebenyuk, I Gregor, T Haas, W Hain, A Hüttmann, F Januschek, B Kahle, II Katkov, U Klein, U Kötz, H Kowalski, V Libov, M Lisovyi, E Lobodzinska

Abstract:

The proton-dissociative diffractive photoproduction of J/ψ mesons has been studied in ep collisions with the ZEUS detector at HERA using an integrated luminosity of 112 pb-1. The cross section is presented as a function of the photon-proton centre-ofmass energy and of the squared four-momentum transfer at the proton vertex. The results are compared to perturbative QCD calculations.
More details from the publisher