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Observation of diffractive J/ψ production at the Fermilab Tevatron

Physical Review Letters 87:24 (2001) 2418021-2418026

Authors:

T Affolder, H Akimoto, A Akopian, MG Albrow, P Amaral, D Amidei, K Anikeev, J Antos, G Apollinari, T Arisawa, A Artikov, T Asakawa, W Ashmanskas, F Azfar, P Azzi-Bacchetta, N Bacchetta, H Bachacou, S Bailey, P de Barbaro, A Barbaro-Galtieri, VE Barnes, BA Barnett, S Baroiant, M Barone, G Bauer, F Bedeschi, S Belforte, WH Bell, G Bellettini, J Bellinger, D Benjamin, J Bensinger, A Beretvas, JP Berge, J Berryhill, A Bhatti, M Binkley, D Bisello, M Bishai, RE Blair, C Blocker, K Bloom, B Blumenfeld, SR Blusk, A Bocci, A Bodek, W Bokhari, G Bolla, Y Bonushkin, K Borras, D Bortoletto, J Boudreau, A Brandl, S van den Brink, C Bromberg, M Brozovic, E Brubaker, N Bruner, E Buckley-Geer, J Budagov, HS Budd, K Burkett, G Busetto, A Byon-Wagner, KL Byrum, S Cabrera, P Calafiura, M Campbell, W Carithers, J Carlson, D Carlsmith, W Caskey, A Castro, D Cauz, A Cerri, AW Chan, PS Chang, PT Chang, J Chapman, C Chen, YC Chen, MT Cheng, M Chertok, G Chiarelli, I Chirikov-Zorin, G Chlachidze, F Chlebana, L Christofek, ML Chu, YS Chung, CI Ciobanu, AG Clark, A Connolly, ME Convery, J Conway, M Cordelli, J Cranshaw, R Cropp, R Culbertson, D Dagenhart

Abstract:

The first observation of diffractive J/ψ(→μ+μ-) production in p̄p collisions at s√=1.8 TeV was presented. Events were selected with a pair of muon candidates using a three-level dimuon trigger system. The dimuon mass distribution was fitted with a sum of a Gaussian and a linear function to evaluate the fraction of background events in the signal region. A value of 0.59±0.15 for the gluon fraction of the diffractive structure function of the proton was extracted.

Detecting the progenitors of core collapse supernovae

(2001)

Initial low/hard state, multiple jet ejections and X-ray/radio correlations during the outburst of XTE J1859+226

(2001)

Authors:

C Brocksopp, RP Fender, M McCollough, GG Pooley, MP Rupen, RM Hjellming, CJ de la Force, RE Spencer, TWB Muxlow, ST Garrington, S Trushkin

Relativistic jets from X-ray binaries: Recent advances

AIP Conference Proceedings AIP Publishing 599:1 (2001) 101-110

Hard X-ray states and radio emission in GRS 1915+105

(2001)

Authors:

M Klein-Wolt, RP Fender, GG Pooley, T Belloni, S Migliari, EH Morgan, M van der Klis