- Main
Measurement of the gamma gamma* -> eta c transition form factor
- Author(s): Lees, JP
- Poireau, V
- Prencipe, E
- Tisserand, V
- Garra Tico, J
- Grauges, E
- Martinelli, M
- Palano, A
- Pappagallo, M
- Eigen, G
- Stugu, B
- Sun, L
- Battaglia, M
- Brown, DN
- Hooberman, B
- Kerth, LT
- Kolomensky, Yu G
- Lynch, G
- Osipenkov, IL
- Tanabe, T
- Hawkes, CM
- Soni, N
- Watson, AT
- Koch, H
- Schroeder, T
- Asgeirsson, DJ
- Hearty, C
- Mattison, TS
- McKenna, JA
- Barrett, M
- Khan, A
- Randle-Conde, A
- Blinov, VE
- Buzykaev, AR
- Druzhinin, VP
- Golubev, VB
- Onuchin, AP
- Serednyakov, SI
- Skovpen, Yu I
- Solodov, EP
- Todyshev, K Yu
- Yushkov, AN
- Bondioli, M
- Curry, S
- Kirkby, D
- Lankford, AJ
- Lund, P
- Mandelkern, M
- Martin, EC
- Stoker, DP
- Atmacan, H
- Gary, JW
- Liu, F
- Long, O
- Vitug, GM
- Yasin, Z
- Sharma, V
- Campagnari, C
- Hong, TM
- Kovalskyi, D
- Richman, JD
- Eisner, AM
- Heusch, CA
- Kroseberg, J
- Lockman, WS
- Martinez, AJ
- Schalk, T
- Schumm, BA
- Seiden, A
- Winstrom, LO
- Cheng, CH
- Doll, DA
- Echenard, B
- Hitlin, DG
- Ongmongkolkul, P
- Porter, FC
- Rakitin, AY
- Andreassen, R
- Dubrovin, MS
- Mancinelli, G
- Meadows, BT
- Sokoloff, MD
- Bloom, PC
- Ford, WT
- Gaz, A
- Hirschauer, JF
- Nagel, M
- Nauenberg, U
- Smith, JG
- Wagner, SR
- Ayad, R
- Toki, WH
- Feltresi, E
- Hauke, A
- Jasper, H
- Karbach, TM
- Merkel, J
- Petzold, A
- Spaan, B
- Wacker, K
- Kobel, MJ
- Schubert, KR
- Schwierz, R
- Bernard, D
- Verderi, M
- Clark, PJ
- Playfer, S
- Watson, JE
- Andreotti, M
- Bettoni, D
- Bozzi, C
- Calabrese, R
- Cecchi, A
- Cibinetto, G
- Fioravanti, E
- Franchini, P
- Luppi, E
- Munerato, M
- Negrini, M
- Petrella, A
- Piemontese, L
- Santoro, V
- Baldini-Ferroli, R
- Calcaterra, A
- de Sangro, R
- Finocchiaro, G
- Nicolaci, M
- Pacetti, S
- Patteri, P
- Peruzzi, IM
- Piccolo, M
- Rama, M
- Zallo, A
- Contri, R
- Guido, E
- Lo Vetere, M
- Monge, MR
- Passaggio, S
- Patrignani, C
- Robutti, E
- Tosi, S
- Bhuyan, B
- Morii, M
- Adametz, A
- Marks, J
- Schenk, S
- Uwer, U
- Bernlochner, FU
- Lacker, HM
- Lueck, T
- Volk, A
- Dauncey, PD
- Tibbetts, M
- Behera, PK
- Mallik, U
- Chen, C
- Cochran, J
- Crawley, HB
- Dong, L
- Meyer, WT
- Prell, S
- Rosenberg, EI
- Rubin, AE
- Gao, YY
- Gritsan, AV
- Guo, ZJ
- Arnaud, N
- Davier, M
- Derkach, D
- da Costa, J Firmino
- Grosdidier, G
- Le Diberder, F
- Lutz, AM
- Malaescu, B
- Roudeau, P
- Schune, MH
- Serrano, J
- Sordini, V
- Stocchi, A
- Wang, L
- Wormser, G
- Lange, DJ
- Wright, DM
- Bingham, I
- Burke, JP
- Chavez, CA
- Fry, JR
- Gabathuler, E
- Gamet, R
- Hutchcroft, DE
- Payne, DJ
- Touramanis, C
- Bevan, AJ
- Di Lodovico, F
- Sacco, R
- Sigamani, M
- Cowan, G
- Paramesvaran, S
- Wren, AC
- Brown, DN
- Davis, CL
- Denig, AG
- Fritsch, M
- Gradl, W
- Hafner, A
- Alwyn, KE
- Bailey, D
- Barlow, RJ
- Jackson, G
- Lafferty, GD
- West, TJ
- Anderson, J
- Jawahery, A
- Roberts, DA
- Simi, G
- Tuggle, JM
- Dallapiccola, C
- Salvati, E
- Cowan, R
- Dujmic, D
- Fisher, PH
- Sciolla, G
- Yamamoto, RK
- Zhao, M
- Patel, PM
- Robertson, SH
- Schram, M
- Biassoni, P
- Lazzaro, A
- Lombardo, V
- Palombo, F
- Stracka, S
- Cremaldi, L
- Godang, R
- Kroeger, R
- Sonnek, P
- Summers, DJ
- Zhao, HW
- Nguyen, X
- Simard, M
- Taras, P
- De Nardo, G
- Monorchio, D
- Onorato, G
- Sciacca, C
- Raven, G
- Snoek, HL
- Jessop, CP
- Knoepfel, KJ
- LoSecco, JM
- Wang, WF
- Corwin, LA
- Honscheid, K
- Kass, R
- Morris, JP
- Rahimi, AM
- Sekula, SJ
- Blount, NL
- Brau, J
- Frey, R
- Igonkina, O
- Kolb, JA
- Lu, M
- Rahmat, R
- Sinev, NB
- Strom, D
- Strube, J
- Torrence, E
- Castelli, G
- Gagliardi, N
- Margoni, M
- Morandin, M
- Posocco, M
- Rotondo, M
- Simonetto, F
- Stroili, R
- del Amo Sanchez, P
- Ben-Haim, E
- Bonneaud, GR
- Briand, H
- Chauveau, J
- Hamon, O
- Leruste, Ph
- Marchiori, G
- Ocariz, J
- Perez, A
- Prendki, J
- Sitt, S
- Biasini, M
- Manoni, E
- Angelini, C
- Batignani, G
- Bettarini, S
- Calderini, G
- Carpinelli, M
- Cervelli, A
- Forti, F
- Giorgi, MA
- Lusiani, A
- Neri, N
- Paoloni, E
- Rizzo, G
- Walsh, JJ
- Pegna, D Lopes
- Lu, C
- Olsen, J
- Smith, AJS
- Telnov, AV
- Anulli, F
- Baracchini, E
- Cavoto, G
- Faccini, R
- Ferrarotto, F
- Ferroni, F
- Gaspero, M
- Jackson, PD
- Gioi, L Li
- Mazzoni, MA
- Piredda, G
- Renga, F
- Ebert, M
- Hartmann, T
- Leddig, T
- Schroeder, H
- Waldi, R
- Adye, T
- Franek, B
- Olaiya, EO
- Wilson, FF
- Emery, S
- de Monchenault, G Hamel
- Vasseur, G
- Yeche, Ch
- Zito, M
- Allen, MT
- Aston, D
- Bard, DJ
- Bartoldus, R
- Benitez, JF
- Cartaro, C
- Cenci, R
- Coleman, JP
- Convery, MR
- Dingfelder, JC
- Dorfan, J
- Dubois-Felsmann, GP
- Dunwoodie, W
- Field, RC
- Sevilla, M Franco
- Fulsom, BG
- Gabareen, AM
- Graham, MT
- Grenier, P
- Hast, C
- Innes, WR
- Kaminski, J
- Kelsey, MH
- Kim, H
- Kim, P
- Kocian, ML
- Leith, DWGS
- Li, S
- Lindquist, B
- Luitz, S
- Luth, V
- Lynch, HL
- MacFarlane, DB
- Marsiske, H
- Messner, R
- Muller, DR
- Neal, H
- Nelson, S
- O'Grady, CP
- Ofte, I
- Perl, M
- Ratcliff, BN
- Roodman, A
- Salnikov, AA
- Schindler, RH
- Schwiening, J
- Snyder, A
- Su, D
- Sullivan, MK
- Suzuki, K
- Swain, SK
- Thompson, JM
- Va'vra, J
- Wagner, AP
- Weaver, M
- West, CA
- Wisniewski, WJ
- Wittgen, M
- Wright, DH
- Wulsin, HW
- Yarritu, AK
- Young, CC
- Ziegler, V
- Chen, XR
- Liu, H
- Park, W
- Purohit, MV
- White, RM
- Wilson, JR
- Bellis, M
- Burchat, PR
- Edwards, AJ
- Miyashita, TS
- Ahmed, S
- Alam, MS
- Ernst, JA
- Pan, B
- Saeed, MA
- Zain, SB
- Guttman, N
- Soffer, A
- Spanier, SM
- Wogsland, BJ
- Eckmann, R
- Ritchie, JL
- Ruland, AM
- Schilling, CJ
- Schwitters, RF
- Wray, BC
- Izen, JM
- Lou, XC
- Bianchi, F
- Gamba, D
- Pelliccioni, M
- Bomben, M
- Della Ricca, G
- Lanceri, L
- Vitale, L
- Azzolini, V
- Lopez-March, N
- Martinez-Vidal, F
- Milanes, DA
- Oyanguren, A
- Albert, J
- Banerjee, Sw
- Choi, HHF
- Hamano, K
- King, GJ
- Kowalewski, R
- Lewczuk, MJ
- Nugent, IM
- Roney, JM
- Sobie, RJ
- Gershon, TJ
- Harrison, PF
- Ilic, J
- Latham, TE
- Mohanty, GB
- Puccio, EMT
- Band, HR
- Chen, X
- Dasu, S
- Flood, KT
- Pan, Y
- Prepost, R
- Vuosalo, CO
- Wu, SL
- et al.
Abstract
We report a measurement of the process gamma gamma* --> pi0 with a 759 fb^{-1} data sample recorded with the Belle detector at the KEKB asymmetric-energy e+e- collider. The pion transition form factor, F(Q^2), is measured for the kinematical region 4 GeV^2 <~ Q^2 <~ 40 GeV^2, where -Q^2 is the invariant mass squared of a virtual photon. The measured values of Q^2|F(Q^2)| agree well with the previous measurements below Q^2 ~= 9 GeV^2 but do not exhibit the rapid growth in the higher Q^2 region seen in another recent measurement, which exceeds the asymptotic QCD expectation by as much as 50%.
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