T. Chen

Single-spin asymmetries in semi-inclusive deep-inelastic scattering on a transversely polarized hydrogen target

Single-spin asymmetries for semi-inclusive electroproduction of charged pions in deep-inelastic scattering of positrons are measured for the first time with transverse target polarization. The asymmetry depends on the azimuthal angles of both the pion (

Subleading-twist effects in single-spin asymmetries in semi-inclusive deep-inelastic scattering on a longitudinally polarized hydrogen target

\phi

Measurement of the tensor structure function b(1) of the deuteron

) and the target spin axis (

Search for an exotic S= -2, Q = -2 baryon resonance at a mass near 1862 MeV in quasireal photoproduction

\phi_S

Lattice study of ( D ¯ 1 D * ) ± near-threshold scattering

) about the virtual photon direction and relative to the lepton scattering plane. The extracted Fourier component

A Lattice Study of

\cmpi

(\bar{D}_1 D^{*})^\pm

is a signal of the previously unmeasured quark transversity distribution, in conjunction with the so-called Collins fragmentation function, also unknown. The Fourier component

Near-threshold Scattering

\smpi

Two-photon decays of \(\eta _c\) from lattice QCD

of the asymmetry arises from a correlation between the transverse polarization of the target nucleon and the intrinsic transverse momentum of quarks, as represented by the previously unmeasured Sivers distribution function. Evidence for both signals is observed, but the Sivers asymmetry may be affected by exclusive vector meson production

Two Photon Decays of

A. Airapetian, N. Akopov, Z. Akopov, M. Amarian, 30 A. Andrus, E.C. Aschenauer, W. Augustyniak, R. Avakian, A. Avetissian, E. Avetissian, A. Bacchetta, P. Bailey, D. Balin, M. Beckmann, S. Belostotski, N. Bianchi, H.P. Blok, 28 H. Böttcher, A. Borissov, A. Borysenko, M. Bouwhuis, A. Brüll, V. Bryzgalov, M. Capiluppi, G.P. Capitani, T. Chen, G. Ciullo, M. Contalbrigo, P.F. Dalpiaz, W. Deconinck, R. De Leo, M. Demey, L. De Nardo, E. De Sanctis, E. Devitsin, M. Diefenthaler, P. Di Nezza, J. Dreschler, M. Düren, M. Ehrenfried, A. Elalaoui-Moulay, G. Elbakian, F. Ellinghaus, U. Elschenbroich, R. Fabbri, A. Fantoni, L. Felawka, S. Frullani, A. Funel, G. Gapienko, V. Gapienko, F. Garibaldi, K. Garrow, G. Gavrilov, 26 V. Gharibyan, O. Grebeniouk, I.M. Gregor, C. Hadjidakis, K. Hafidi, M. Hartig, D. Hasch, W.H.A. Hesselink, 28 A. Hillenbrand, M. Hoek, Y. Holler, B. Hommez, I. Hristova, G. Iarygin, A. Ivanilov, A. Izotov, H.E. Jackson, A. Jgoun, R. Kaiser, T. Keri, E. Kinney, A. Kisselev, 21 T. Kobayashi, M. Kopytin, V. Korotkov, V. Kozlov, B. Krauss, V.G. Krivokhijine, L. Lagamba, L. Lapikás, A. Laziev, 28 P. Lenisa, P. Liebing, L.A. Linden-Levy, W. Lorenzon, H. Lu, J. Lu, S. Lu, B.-Q. Ma, B. Maiheu, N.C.R. Makins, Y. Mao, B. Marianski, H. Marukyan, F. Masoli, V. Mexner, N. Meyners, T. Michler, O. Mikloukho, C.A. Miller, 26 Y. Miyachi, V. Muccifora, M. Murray, A. Nagaitsev, E. Nappi, Y. Naryshkin, M. Negodaev, W.-D. Nowak, K. Oganessyan, H. Ohsuga, A. Osborne, N. Pickert, D.H. Potterveld, M. Raithel, D. Reggiani, P.E. Reimer, A. Reischl, A.R. Reolon, C. Riedl, K. Rith, G. Rosner, A. Rostomyan, L. Rubacek, J. Rubin, D. Ryckbosch, Y. Salomatin, I. Sanjiev, 21 I. Savin, A. Schäfer, G. Schnell, 27 K.P. Schüler, J. Seele, R. Seidl, B. Seitz, C. Shearer, T.-A. Shibata, V. Shutov, K. Sinram, W. Sommer, M. Stancari, M. Statera, E. Steffens, J.J.M. Steijger, H. Stenzel, J. Stewart, F. Stinzing, P. Tait, H. Tanaka, S. Taroian, B. Tchuiko, A. Terkulov, A. Trzcinski, M. Tytgat, A. Vandenbroucke, P.B. van der Nat, G. van der Steenhoven, Y. van Haarlem, V. Vikhrov, M.G. Vincter, C. Vogel, J. Volmer, S. Wang, J. Wendland, 26 Y. Ye, Z. Ye, S. Yen, B. Zihlmann, and P. Zupranski