Professor Dr.rer.nat. Dipl.Phys. Alfons Weber FInstP, MA Ox: Publications

Measurement of neutrino oscillations with the MINOS detectors in the NuMI meam

Physical Review Letters 101:13 (2008)

Authors:

P Adamson, C Andreopoulos, KE Arms, R Armstrong, DJ Auty, DS Ayres, B Baller, PD Barnes, G Barr, WL Barrett, BR Becker, A Belias, RH Bernstein, D Bhattacharya, M Bishai, A Blake, GJ Bock, J Boehm, DJ Boehnlein, D Bogert, C Bower, E Buckley-Geer, S Cavanaugh, JD Chapman, D Cherdack, S Childress, BC Choudhary, JH Cobb, SJ Coleman, AJ Culling, JK De Jong, M Dierckxsens, MV Diwan, M Dorman, SA Dytman, CO Escobar, JJ Evans, E Falk Harris, GJ Feldman, MV Frohne, HR Gallagher, A Godley, MC Goodman, P Gouffon, R Gran, EW Grashorn, N Grossman, K Grzelak, A Habig, D Harris, PG Harris, J Hartnell, R Hatcher, K Heller, A Himmel, A Holin, J Hylen, GM Irwin, M Ishitsuka, DE Jaffe, C James, D Jensen, T Kafka, SMS Kasahara, JJ Kim, MS Kim, G Koizumi, S Kopp, M Kordosky, DJ Koskinen, SK Kotelnikov, A Kreymer, S Kumaratunga, K Lang, J Ling, PJ Litchfield, RP Litchfield, L Loiacono, P Lucas, J Ma, WA Mann, A Marchionni, ML Marshak, JS Marshall, N Mayer, AM McGowan, JR Meier, GI Merzon, MD Messier, CJ Metelko, DG Michael, JL Miller, WH Miller, SR Mishra, CD Moore, J Morfín, L Mualem, S Mufson, S Murgia, J Musser

Abstract:

This Letter reports new results from the MINOS experiment based on a two-year exposure to muon neutrinos from the Fermilab NuMI beam. Our data are consistent with quantum-mechanical oscillations of neutrino flavor with mass splitting |Δm2|=(2.43±0.13)×10-3eV2 (68 C.L.) and mixing angle sin 2(2θ)>0.90 (90 C.L.). Our data disfavor two alternative explanations for the disappearance of neutrinos in flight: namely, neutrino decays into lighter particles and quantum decoherence of neutrinos, at the 3.7 and 5.7 standard-deviation levels, respectively. © 2008 The American Physical Society.

Measurement of the proton structure function F L (x, Q 2) at low x

Physics Letters Section B Nuclear Elementary Particle and High Energy Physics 665:4 (2008) 139-146

Authors:

FD Aaron, C Alexa, V Andreev, B Antunovic, S Aplin, A Asmone, A Astvatsatourov, A Bacchetta, S Backovic, A Baghdasaryan, P Baranov, E Barrelet, W Bartel, M Beckingham, K Begzsuren, O Behnke, A Belousov, N Berger, JC Bizot, MO Boenig, V Boudry, I Bozovic-Jelisavcic, J Bracinik, G Brandt, M Brinkmann, V Brisson, D Bruncko, A Bunyatyan, G Buschhorn, L Bystritskaya, AJ Campbell, KB Cantun Avila, F Cassol-Brunner, K Cerny, V Cerny, V Chekelian, A Cholewa, JG Contreras, JA Coughlan, G Cozzika, J Cvach, JB Dainton, K Daum, M Deák, Y de Boer, B Delcourt, M Del Degan, J Delvax, A De Roeck, EA De Wolf, C Diaconu, V Dodonov, A Dossanov, A Dubak, G Eckerlin, V Efremenko, S Egli, A Eliseev, E Elsen, S Essenov, A Falkiewicz, PJW Faulkner, L Favart, A Fedotov, R Felst, J Feltesse, J Ferencei, L Finke, M Fleischer, A Fomenko, E Gabathuler, J Gayler, S Ghazaryan, A Glazov, I Glushkov, L Goerlich, M Goettlich, N Gogitidze, M Gouzevitch, C Grab, T Greenshaw, BR Grell, G Grindhammer, S Habib, D Haidt, M Hansson, C Helebrant, RCW Henderson, H Henschel, G Herrera, M Hildebrandt, KH Hiller, D Hoffmann, R Horisberger, A Hovhannisyan, T Hreus, M Jacquet, ME Janssen, X Janssen, V Jemanov

Abstract:

A first measurement is reported of the longitudinal proton structure function F L (x, Q ²) at the ep collider HERA. It is based on inclusive deep inelastic e ⁺ p scattering cross section measurements with a positron beam energy of 27.5 GeV and proton beam energies of 920, 575 and 460 GeV. Employing the energy dependence of the cross section, F L is measured in a range of squared four-momentum transfers 12 ≤ Q ² ≤ 90 GeV ² and low Bjorken x 0.00024 ≤ x ≤ 0.0036. The F L values agree with higher order QCD calculations based on parton densities obtained using cross section data previously measured at HERA. © 2008 Elsevier B.V. All rights reserved.

Search for active neutrino disappearance using neutral-current interactions in the MINOS long-baseline experiment

ArXiv 0807.2424 (2008)

Testing Lorentz Invariance and CPT Conservation with NuMI Neutrinos in the MINOS Near Detector

ArXiv 0806.4945 (2008)

Measurement of Neutrino Oscillations with the MINOS Detectors in the NuMI Beam

ArXiv 0806.2237 (2008)

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