57 high-probability publications. We are testing a new system for linking publications to authors. You can help! If you notice any inaccuracies, please sign in and mark papers as correct or incorrect matches. If you identify any major omissions or other inaccuracies in the publication list, please let us know.

Year Citation  Score
1991 Gomez-Cadenas JJ, Heusch CA, Abrams G, Adolphsen CE, Akerlof C, Alexander JP, Alvarez M, Amidei D, Baden AR, Ballam J, Barish BC, Barklow T, Barnett BA, Bartelt J, Blockus D, et al. Search for elastic nondiagonal lepton-pair production in e+e- annihilation at sqrt s =29 GeV. Physical Review Letters. 66: 1007-1010. PMID 10043972 DOI: 10.1103/Physrevlett.66.1007  0.464
1991 von Zanthier C, de Boer W, Grindhammer G, Hylen J, Harral B, Hearty C, Labarga L, Matthews J, Schaad M, Abrams G, Adolphsen CE, Akerlof C, Alexander JP, Alvarez M, Baden AR, ... Ballam J, et al. Measurement of the total hadronic cross section in e+e- annihilation at sqrt s =29 GeV. Physical Review D: Particles and Fields. 43: 34-45. PMID 10013226 DOI: 10.1103/Physrevd.43.34  0.437
1990 Wagner SR, Hinshaw DA, Ong RA, Snyder A, Abrams G, Adolphsen CE, Akerlof C, Alexander JP, Alvarez M, Amidei D, Baden AR, Ballam J, Barish BC, Barklow T, Barnett BA, et al. Measurement of the B0-meson lifetime. Physical Review Letters. 64: 1095-1098. PMID 10041298 DOI: 10.1103/Physrevlett.64.1095  0.378
1990 Condo GT, Handler T, Shimony J, Abe K, Austern M, Armenteros R, Bacon TC, Ballam J, Bingham HH, Brau JE, Braune K, Brick D, Bugg WM, Butler JM, Cameron W, et al. Charge-exchange photoproduction of the a2-(1320) in association with Delta ++ at 19.3 GeV/c. Physical Review D: Particles and Fields. 41: 3317-3323. PMID 10012269 DOI: 10.1103/Physrevd.41.3317  0.619
1989 Abrams GS, Adolphsen CE, Averill D, Ballam J, Barish BC, Barklow T, Barnett BA, Bartelt J, Bethke S, Blockus D, Bonvicini G, Boyarski A, Brabson B, Breakstone A, Brom JM, et al. Measurements of Z-boson resonance parameters in e+e- annihilation. Physical Review Letters. 63: 2173-2176. PMID 10040819 DOI: 10.1103/Physrevlett.63.2173  0.43
1989 Abrams G, Adolphsen CE, Akerlof C, Alexander JP, Alvarez M, Averill D, Baden AR, Ballam J, Barish BC, Barklow T, Barnett BA, Bartelt J, Blockus D, De Boer W, Bonvicini G, et al. The Mark II detector for the SLC Nuclear Inst. and Methods in Physics Research, A. 281: 55-80. DOI: 10.1016/0168-9002(89)91217-5  0.306
1989 Bethke S, Abrams G, Adolphsen CE, Akerlof C, Alexander JP, Alvarez M, Baden AR, Ballam J, Barish BC, Barklow T, Barnett BA, Bartelt J, Blockus D, Bonvicini G, Boyarski A, et al. Studies of jet production rates in e+e- annihilation at Ecm=29 GeV Zeitschrift FüR Physik C Particles and Fields. 43: 325-330. DOI: 10.1007/Bf01506527  0.381
1988 Brau JE, Franek B, Wester W, Abe K, Bacon TC, Ballam J, Bingham HH, Braune K, Brick D, Bugg WM, Butler JM, Cameron W, Carroll JT, Cautis CV, Cohn HO, et al. Production and decay properties of the omega pi 0 state at 1250 MeV/c2 produced by 20-GeV polarized photons on hydrogen. Physical Review D: Particles and Fields. 37: 2379-2390. PMID 9958954 DOI: 10.1103/Physrevd.37.2379  0.66
1988 Wood DR, Petersen A, Abrams G, Adolphsen CE, Akerlof C, Alexander JP, Alvarez M, Amidei D, Baden AR, Ballam J, Barish BC, Barklow T, Barnett BA, Bartelt J, Blockus D, et al. Determination of alpha s from energy-energy correlations in e+e- annihilation at 29 GeV. Physical Review D: Particles and Fields. 37: 3091-3102. PMID 9958592 DOI: 10.1103/Physrevd.37.3091  0.324
1988 Petersen A, Abrams G, Adolphsen CE, Akerlof C, Alexander JP, Alvarez M, Amidei D, Baden AR, Ballam J, Barish BC, Barklow T, Barnett BA, Bartelt J, Blockus D, Bonvicini G, et al. Multihadronic events at Ec.m. Physical Review D: Particles and Fields. 37: 1-27. PMID 9958515 DOI: 10.1103/Physrevd.37.1  0.364
1986 Abe K, Armenteros R, Bacon TC, Ballam J, Bingham HH, Brau JE, Braune K, Brick D, Bugg WM, Butler JM, Cameron W, Cohn HO, Colley DC, Condo GT, Dingus P, et al. Lifetimes, cross sections, and production mechanisms of charmed particles produced by 20-GeV photons. Physical Review D: Particles and Fields. 33: 1-18. PMID 9956437  0.398
1985 Abe K, Bacon TC, Ballam J, Bevan AV, Bingham HH, Brau JE, Braune K, Brick D, Bugg WM, Butler JM, Cameron W, Cohn HO, Condo G, Colley DC, Dado S, et al. Test of s-channel helicity conservation in inelastic rho 0 diffraction in 20-GeV photoproduction. Physical Review D: Particles and Fields. 32: 2288-2293. PMID 9956409 DOI: 10.1103/Physrevd.32.2288  0.596
1985 Abe K, Armenteros R, Bacon TC, Ballam J, Bingham HH, Brau JE, Braune K, Brick D, Bugg WM, Butler JM, Cameron W, Cohn HO, Colley DC, Dado S, Diamond R, et al. Inclusive photoproduction of strange baryons at 20 GeV. Physical Review D: Particles and Fields. 32: 2869-2882. PMID 9956069 DOI: 10.1103/PhysRevD.32.2869  0.41
1984 Abe K, Bacon TC, Ballam J, Bevan AV, Bingham HH, Brau JE. Study of the(1600) mass region using p+-p at 20 GeV Physical Review Letters. 53: 751-754. DOI: 10.1103/Physrevlett.53.751  0.463
1984 Abe K, Bacon TC, Ballam J, Bevan AV, Bingham HH, Brau JE, Braune K, Brick D, Bugg WM, Butler JM, Cameron W, Chima JS, Cohn HO, Colley DC, Condo GT, et al. Charm photoproduction at 20 GeV Physical Review D. 30: 1-21. DOI: 10.1103/Physrevd.30.1  0.597
1984 Abe K, Bacon TC, Ballam J, Bevan AV, Bingham HH, Brau JE, Braune K, Brick D, Bugg WM, Butler J, Cameron W, Carroll JT, Cautis CV, Chima JS, Cohn HO, et al. Inclusive photoproduction of neutral strange particles at 20 GeV Physical Review D. 29: 1877-1887. DOI: 10.1103/Physrevd.29.1877  0.65
1983 Abe K, Bacon TC, Ballam J, Berny L, Bevan AV, Bingham HH, Brau JE. Charm photoproduction cross section at 20 GeV Physical Review Letters. 51: 156-159. DOI: 10.1103/Physrevlett.51.156  0.462
1982 Abe K, Bacon TC, Ballam J, Berny L, Bevan AV, Bingham HH, Brau JE, Brick D, Bugg WM, Butler J, Cameron W, Carroll JT, Cautis CV, Chima JS, Cohn HO, et al. Lifetimes of Charmed Particles Produced in a 20-{GeV} $\gamma p$ Experiment Physical Review Letters. 48: 1526-1529. DOI: 10.1103/Physrevlett.48.1526  0.594
1980 Ballam J, Brau J, Bouchez J, Carroll JT, Cautis CV, Chadwick GB, Chaloupka V, Field RC, Freytag DR, Lewis RA, Minard MN, Moffeit KC, Stevens RA, Baker PA, Chima JS, et al. Vector meson production in hypercharge exchange reactions at 7 and 11.5 GeV/c Nuclear Physics, Section B. 166: 189-206. DOI: 10.1016/0550-3213(80)90224-2  0.506
1979 Cautis CV, Ballam J, Bouchez J, Carroll JT, Chadwick GB, Chaloupka V, Field RC, Freytag DR, Lewis RA, Minard MN, Moffeit KC, Stevens RA. Production and decay angular distributions of the Y* (1385) in the line-reversed reactions: π+p → K+Y* (1385) and K-p → π-Y* (1385) at 11.5 GeV/c Nuclear Physics, Section B. 156: 507-531. DOI: 10.1016/0550-3213(79)90208-6  0.488
1978 Ballam J, Bouchez J, Carroll JT, Cautis CV, Chadwick GB, Chaloupka V, Field RC, Freytag DR, Lewis RA, Minard MN, Moffeit KC, Stevens RA. Confirmation of exchange-degeneracy predictions in the line-reversed reactions: π+p→K+Y*(1385) and K-p→-Y*(1385) at 11.5 GeV/c Physical Review Letters. 41: 676-679. DOI: 10.1103/Physrevlett.41.676  0.435
1978 Ballam J, Bouchez J, Carroll JT, Chadwick GB, Chaloupka V, Field RC, Freytag DR, Lewis RA, Moffeit KC, Stevens RA, Band H, Fortney LR, Glanzman T, Loos JS, Robertson WJ, et al. Direct electron-pair production in p interactions at 18 GeV/c Physical Review Letters. 41: 1207-1210. DOI: 10.1103/Physrevlett.41.1207  0.392
1978 Ballam J, Bouchez J, Carroll JT, Chadwick GB, Cahloupka V, Field RC, Freytag DR, Lewis RA, Moffeit KC, Stevens RA, Band H, Fourtney LR, Glanzman T, Loos JS, Robertson WJ, et al. Limits on the production of unpaired electrons or positrons in 18-GeV/c π±-p interactions Physical Review Letters. 40: 741-744. DOI: 10.1103/Physrevlett.40.741  0.348
1978 Baker PA, Chima JS, Dornan PJ, Gibbs DJ, Hall G, Miller DB, Virdee TS, White AP, Ballam J, Bouchez J, Carroll JT, Cautis CV, Chadwick GB, Chaloupka V, Field RC, et al. Polarization measurement of the Σ+ produced in the line-reversed reactions π+p→K++ and K-p→π-+ at 7 and 11.6 GeV/c Physical Review Letters. 40: 678-681. DOI: 10.1103/Physrevlett.40.678  0.418
1978 Chadwick GB, Carroll JT, Chaloupka V, Ballam J, Bouchez J, Herquet P, Linglin D, Moffeit KC, Stevens R, Davidson V, Firestone A, Nagy F, Peck C, Rosenfeld L, Ely R, et al. Hybrid-bubble-chamber study of nucleon diffractive dissociation in 14-GeV/c π±p collisions Physical Review D. 17: 1713-1730. DOI: 10.1103/Physrevd.17.1713  0.457
1977 Kogan E, Ballam J, Chadwick GB, Moffeit KC, Seyboth P, Skillicorn IO, Spitzer H, Wolf G, Bingham HH, Fretter WB, Podolsky WJ, Rabin MS, Rosenfeld AH, Smadja G, Eisenberg Y. Inclusive ρ{variant}0 production in γp interactions at 2.8, 4.7, and 9.3 GeV Nuclear Physics, Section B. 122: 383-396. DOI: 10.1016/0550-3213(77)90134-1  0.746
1976 Ochs W, Davidson V, Dzierba A, Firestone A, Ford W, Gomez R, Nagy F, Peck C, Rosenfeld C, Ballam J, Carroll J, Chadwick G, Linglin D, Moffeit K, Ely R, et al. A study of transverse and longitudinal momentum correlations in proton diffraction dissociation at 14 GeV/c Nuclear Physics, Section B. 102: 405-428. DOI: 10.1016/0550-3213(76)90428-4  0.451
1975 Ochs W, Davidson V, Dzierba A, Firestone A, Ford W, Gomez R, Nagy F, Peck C, Rosenfeld C, Ballam J, Carroll J, Chadwick G, Linglin D, Marcelja F, Moffeit K, et al. Spin and parity of the diffractively produced Nπ system from its interference with the Δ(1236) isobar Nuclear Physics, Section B. 86: 253-269. DOI: 10.1016/0550-3213(75)90444-7  0.345
1975 Ballam J, Bloom ED, Carroll JT, Chadwick GB, Cottrell RLA, Negra MD, Destaebler H, Gerhswin LK, Keller LP, Mestayer MD, Moffeit KC, Prescott CY, Stein S. Charged hadron multiplicities and topologies in inelastic μ−p scattering Physics Letters B. 56: 193-196. DOI: 10.1016/0370-2693(75)90301-9  0.425
1974 Alexander G, Benary O, Dagan S, Gandsman J, Grunhaus J, Levy A, Oren Y, Ballam J, Chadwick GB, Menke MM, Eisenberg Y, Haber B, Ronat EE, Shapira A, Yekutieli G. Study of high-energy photoproduction with positron-annihilation radiation III. The reactions pp2+2-0 and pn3+2- Physical Review D. 9: 644-648. DOI: 10.1103/Physrevd.9.644  0.436
1974 Ballam J, Bloom ED, Carroll JT, Chadwick GB, Cottrell RLA, Negra MD, DeStaebler H, Gershwin LK, Keller LP, Mestayer MD, Moffeit KC, Prescott CY, Stein S. Production of vector mesons by muons in a hybrid bubble-chamber experiment Physical Review D. 10: 765-776. DOI: 10.1103/Physrevd.10.765  0.333
1974 Ballam J, Chadwick GB, Eisenberg Y, Kogan E, Moffeit KC, Skillicorn IO, Spitzer H, Wolf G, Bingham HH, Fretter WB, Podolsky WJ, Rabin MS, Rosenfeld AH, Smadja G, Seyboth P. A search for B and ρ{variant}′(1250) production in the reaction γp → pπ+π- + neutrals at 2.8, 4.7 and 9.3 GeV Nuclear Physics, Section B. 76: 375-399. DOI: 10.1016/0550-3213(74)90532-X  0.711
1973 Alexander G, Bar-Nir I, Brandstetter A, Benary O, Gandsman J, Levy A, Oren Y, Ballam J, Chadwick GB, Menke MM, Eisenberg Y, Haber B, Kogan E, Ronat EE, Shapira A, et al. Study of high-energy photoproduction with positron annihilation radiation. II. The reaction γp→pπ+π+π-π- Physical Review D. 8: 1965-1978. DOI: 10.1103/Physrevd.8.1965  0.43
1973 Bingham HH, Fretter WB, Podolsky WJ, Rabin MS, Rosenfeld AH, Smadja G, Ballam J, Chadwick GB, Eisenberg Y, Gearhart R, Kogan E, Moffeit KC, Murray JJ, Seyboth P, Sinclair CK, et al. Total and partial γp cross sections at 9.3 GeV Physical Review D. 8: 1277-1286. DOI: 10.1103/Physrevd.8.1277  0.715
1973 Ballam J, Chadwick GB, Eisenberg Y, Kogan E, Moffeit KC, Seyboth P, Skillicorn IO, Spitzer H, Wolf G, Bingham HH, Fretter WB, Podolsky WJ, Rabin MS, Rosenfeld AH, Smadja G. Vector-meson production by polarized photons at 2.8, 4.7, and 9.3 GeV Physical Review D. 7: 3150-3177. DOI: 10.1103/Physrevd.7.3150  0.714
1972 Ballam J, Chadwick GB, Gearhart R, Guiragossián ZGT, Murray JJ, Seyboth P, Sinclair CK, Skillicorn IO, Spitzer H, Wolf G, Bingham HH, Fretter WB, Moffeit KC, Podolsky WJ, Rabin MS, et al. Bubble-chamber study of photoproduction by 2.8- and 4.7-GeV polarized photons. I. Cross-section determinations and production of ρ0 and Δ++ in the reaction γp→pπ+π- Physical Review D. 5: 545-589. DOI: 10.1103/Physrevd.5.545  0.747
1972 Moffeit KC, Ballam J, Chadwick GB, Della-Negra M, Gearhart R, Murray JJ, Seyboth P, Sinclair CK, Skillicorn IO, Spitzer H, Wolf G, Bingham HH, Fretter WB, Podolsky WJ, Rabin MS, et al. Study of the inclusive reaction γp→π-+(anything) with polarized photons at 2.8, 4.7, and 9.3 GeV Physical Review D. 5: 1603-1621. DOI: 10.1103/Physrevd.5.1603  0.695
1972 Bingham HH, Fretter WB, Podolsky WJ, Rabin MS, Rosenfeld AH, Smadja G, Yost GP, Ballam J, Chadwick GB, Eisenberg Y, Kogan E, Moffeit KC, Seyboth P, Skillicorn IO, Spitzer H, et al. Observation of a four-pion vector-meson state of mass ≈ 1.5 GeV produced by linearly polarized 9.3 GeV photons Physics Letters B. 41: 635-638. DOI: 10.1016/0370-2693(72)90653-3  0.711
1971 Ballam J, Chadwick GB, Levy A, Menke MM, Seyboth P, Shapira A, Eisenberg Y, Haber B, Ronat EE, Stahl Y, Yekutieli G. Energy dependence of the reaction γp→ρ- δ++ Physical Review Letters. 26: 995-997. DOI: 10.1103/Physrevlett.26.995  0.373
1971 Ballam J, Chadwick GB, Gearhart R, Guiragossián ZGT, Menke M, Murray JJ, Seyboth P, Shapira A, Sinclair CK, Skillicorn IO, Wolf G, Milburn RH, Bingham HH, Fretter WB, Moffeit KC, et al. Study of γp-->pω with Linearly Polarized Photons at 2.8 and 4.7 GeV Physical Review Letters. 26: 155-155. DOI: 10.1103/Physrevlett.26.155  0.476
1971 Ballam J, Chadwick GB, Guiragossián ZGT, Johnson WB, Leith DWGS, Moriyasu K. Van Hove Analysis of the Reactionsπ−p→π−π−π+pandπ+p→π+π+π−pat 16 GeV/c Physical Review D. 4: 1946-1967. DOI: 10.1103/Physrevd.4.1946  0.331
1971 Ballam J, Chadwick GB, Guiragossián ZGT, Johnson WB, Leith DWGS, Moriyasu K. PRODUCTION OF B(1235) AND rho(1710)4$pi$ ENHANCEMENTS IN 16-GeV/c $pi$$sup +-$p COLLISIONS. Physical Review D. 3: 2606-2609. DOI: 10.1103/Physrevd.3.2606  0.445
1971 Moffeit KC, Bingham HH, Fretter WB, Podolsky WJ, Rabin MS, Rosenfeld AH, Windmolders R, Ballam J, Chadwick GB, Gearhart R, Guiragossían ZGT, Menke M, Murray JJ, Seyboth P, Shapira A, et al. The ρO - ω interference parameters in diffractive photoproduction of vector mesons on hydrogen Nuclear Physics, Section B. 29: 349-356. DOI: 10.1016/0550-3213(71)90026-5  0.644
1971 Eisenberg Y, Haber B, Ronat EE, Stahl Y, Yekutieli G, Ballam J, Chadwick GB, Menke MM, Seyboth P, Shapira A, Gandsman J, Grunhaus J, Levy A. Photoproduction of ω - mesons from 1.2 to 8.2 GeV Physics Letters B. 34: 439-442. DOI: 10.1016/0370-2693(71)90648-4  0.486
1970 Bingham HH, Fretter WB, Moffeit KC, Podolsky WJ, Rabin MS, Rosenfeld AH, Windmolders R, Ballam J, Chadwick GB, Gearhart R, Guiragossián ZGT, Menke M, Murray JJ, Seyboth P, Shapira A, et al. Δ production via γp→Δπ by linearly polarized photons at 2.8 and 4.7 GeV Physical Review Letters. 25: 1223-1226. DOI: 10.1103/Physrevlett.25.1223  0.704
1970 Ballam J, Chadwick GB, Gearhart R, Guiragossián ZGT, Menke M, Murray JJ, Seyboth P, Shapira A, Sinclair CK, Skillicorn IO, Wolf G, Milburn RH, Bingham HH, Fretter WB, Moffeit KC, et al. Conservation of s-Channel Helicity in ρ0 Photoproduction Physical Review Letters. 24: 960-963. DOI: 10.1103/Physrevlett.24.960  0.673
1970 Bingham HH, Fretter WB, Moffeit KC, Podolsky WJ, Rabin MS, Rosenfeld AH, Windmolders R, Ballam J, Chadwick GB, Gearhart R, Guiragossián ZGT, Menke M, Murray JJ, Seyboth P, Shapira A, et al. Reaction γp→pρ0 with Linearly Polarized Photons at 2.8 and 4.7 GeV: Cross Sections and the ρ0 Mass Shift Physical Review Letters. 24: 955-959. DOI: 10.1103/Physrevlett.24.955  0.737
1970 Ballam J, Chadwick GB, Gearhart R, Guiragossián ZGT, Menke M, Murray JJ, Seyboth P, Shapira A, Sinclair CK, Skillicorn IO, Wolf G, Milburn RH, Bingham HH, Fretter WB, Moffeit KC, et al. Study of γp→ρω with linearly polarized photons at 2.8 and 4.7 GeV Physical Review Letters. 24: 1364-1368. DOI: 10.1103/Physrevlett.24.1364  0.694
1970 Ballam J, Brody AD, Chadwick GB, Guiragossian ZGT, Johnson WB, Larsen RR, Leith DWGS, Moriyasu K. ORBITAL-ANGULAR-MOMENTUM STRUCTURE OF THE A$sub 1$ MESON. Physical Review D. 1: 94-99. DOI: 10.1103/Physrevd.1.94  0.352
1970 Ballam J, Chadwick GB, Guiragossián ZGT, Johnson WB, Leith DWGS, Moriyasu K. A study of the reaction π−p → π−π+n at 16 GeV/c Physics Letters B. 31: 489-492. DOI: 10.1016/0370-2693(70)90161-9  0.457
1969 Ballam J, Chadwick GB, Gearhart R, Guiragossian ZGT, Klein PR, Levy A, Menke M, Murray JJ, Seyboth P, Wolf G, Sinclair CK, Bingham HH, Fretter WB, Moffeit KC, Podolsky WJ, et al. Total and partial photoproduction cross sections at 1.44, 2.8, and 4.7 GeV Physical Review Letters. 23: 498-501. DOI: 10.1103/Physrevlett.23.498  0.701
1969 Eisenberg Y, Haber B, Horovitz B, Peleg E, Ronat EE, Shapira A, Vishinsky G, Yekutieli G, Ballam J, Chadwick GB, Guiragossián ZGT, Levy A, Menke M, Seyboth P, Wolf G. Photoproduction of the A2 meson in the reaction γp→nπ+π+π- and an estimate of the A2 γπ width Physical Review Letters. 23: 1322-1324. DOI: 10.1103/Physrevlett.23.1322  0.351
1969 Ballam J, Chadwick GB, Guiragossián ZGT, Levy A, Menke M, Seyboth P, Wolf G. γp interactions at 5.25 GeV Physics Letters B. 30: 421-425. DOI: 10.1016/0370-2693(69)90478-X  0.354
1969 Ballam J, Chadwick GB, Guiragossián ZGT, Kilert A, Larsen RR, Leith DWGS, Williams SH. The SLAC monochromatic photon beam Nuclear Instruments and Methods. 73: 53-60. DOI: 10.1016/0029-554X(69)90136-0  0.331
1968 Ballam J, Brody AD, Chadwick GB, Fries D, Guiragossián ZGT, Johnson WB, Larsen RR, Leith DWGS, Martin F, Perl M, Pickup E, Tan TH. Production and Decay ofA1andA2Resonances in 16-GeV/cπ−pInteractions Physical Review Letters. 21: 934-938. DOI: 10.1103/Physrevlett.21.934  0.436
1968 Ballam J, Chadwick GB, Guiragossian ZGT, Klein P, Levy A, Menke M, Pickup E, Seyboth P, Tan TH, Wolf G. $gamma$-p TOTAL HADRONIC CROSS SECTIONS AT 7.5 GeV. Physical Review Letters. 21: 1544-1547. DOI: 10.1103/Physrevlett.21.1544  0.504
1968 Ballam J, Chadwick GB, Guiragossian ZGT, Klein P, Levy A, Menke M, Pickup E, Tan TH, Seyboth P, Wolf G. PARTIAL PHOTOPRODUCTION CROSS-SECTIONS UP TO 12-GeV Physical Review Letters. 21: 1541-1544. DOI: 10.1103/Physrevlett.21.1541  0.487
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