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Λ[Formula presented] production in two-photon interactions

Physical Review D - Particles, Fields, Gravitation and Cosmology 56:5 (1997) R2485-R2489

Authors:

S Anderson, Y Kubota, M Lattery, JJ O’Neill, S Patton, R Poling, T Riehle, V Savinov, A Smith, MS Alam, SB Athar, Z Ling, AH Mahmood, H Severini, S Timm, F Wappler, A Anastassov, S Blinov, JE Duboscq, D Fujino, R Fulton, KK Gan, T Hart, K Honscheid, H Kagan, R Kass, J Lee, MB Spencer, M Sung, A Undrus, R Wanke, A Wolf, MM Zoeller, B Nemati, SJ Richichi, WR Ross, P Skubic, M Wood, M Bishai, J Fast, E Gerndt, JW Hinson, N Menon, DH Miller, EI Shibata, IPJ Shipsey, M Yurko, L Gibbons, SD Johnson, Y Kwon, S Roberts, EH Thorndike, CP Jessop, K Lingel, H Marsiske, ML Perl, SF Schaffner, D Ugolini, R Wang, X Zhou, TE Coan, V Fadeyev, I Korolkov, Y Maravin, I Narsky, V Shelkov, J Staeck, R Stroynowski, I Volobouev, J Ye, M Artuso, A Efimov, F Frasconi, M Gao, M Goldberg, D He, S Kopp, GC Moneti, R Mountain, Y Mukhin, S Schuh, T Skwarnicki, S Stone, G Viehhauser, X Xing, J Bartelt, SE Csorna, V Jain, S Marka, A Freyberger, D Gibaut, R Godang, K Kinoshita, IC Lai, P Pomianowski, S Schrenk, G Bonvicini, D Cinabro, R Greene, LP Perera

Abstract:

Using the CLEO detector at the Cornell [Formula presented] storage ring CESR we study the two-photon production of Λ[Formula presented], making the first observation of γγ→Λ[Formula presented]. We present the cross section for γγ→Λ[Formula presented] as a function of the [Formula presented] center of mass energy and compare it to that predicted by the quark-diquark model. © 1997 The American Physical Society.
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COMMENTS ON THE HIGH Q**2 HERA ANOMALY

Phys.Lett.B 402 (1997) 367

Authors:

KS Babu, CF Kolda, JD March-Russell, F Wilczek
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IMPLICATIONS OF A CHARGED CURRENT ANOMALY AT HERA

Phys.Lett.B 408 (1997) 261

Authors:

KS Babu, CF Kolda, JD March-Russell
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LOW-ENERGY SIGNATURES OF SEMIPERTURBATIVE UNIFICATION

Phys.Rev.D 55 (1997) 4252

Authors:

CF Kolda, JD March-Russell
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MODIFIED PARTON DISTRIBUTIONS AND THE HERA HIGH Q**2 ANOMALY

Phys.Lett.B 408 (1997) 268

Authors:

KS Babu, CF Kolda, JD March-Russell
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