Zobrazeno 1 - 10
of 253
pro vyhledávání: '"Ballam, J."'
Autor:
Prinz, A. A., Baggs, R., Ballam, J., Ecklund, S., Fertig, C., Jaros, J. A., Kase, K., Kulikov, A., Langeveld, W. G. J., Leonard, R., Marvin, T., Nakashima, T., Nelson, W. R., Odian, A., Pertsova, M., Putallaz, G., Weinstein, A.
Publikováno v:
Phys.Rev.Lett.81:1175-1178,1998
Particles with electric charge q < 10^(-3)e and masses in the range 1--100 MeV/c^2 are not excluded by present experiments. An experiment uniquely suited to the production and detection of such "millicharged" particles has been carried out at SLAC. T
Externí odkaz:
http://arxiv.org/abs/hep-ex/9804008
Autor:
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, Barish, BC, Barklow, T, Barnett, BA, Bartelt, J, Blockus, D, Bonvicini, G, Boyarski, A, Boyer, J, Brabson, B, Breakstone, A, Brom, JM, Bulos, F, Burchat, PR, Burke, DL, Butler, F, Calvino, F, Cence, RJ, Chapman, J, Cords, D, Coupal, DP, Destaebler, HC, Dorfan, DE, Dorfan, JM, Drell, PS, Feldman, GJ, Fernandez, E, Field, RC, Ford, WT, Fordham, C, Frey, R, Fujino, D, Gan, KK, Gidal, G, Glanzman, T, Goldhaber, G, Green, A, Grosse-Wiesmann, P, Haggerty, J, Hanson, G, Harr, R, Harris, FA, Hawkes, CM, Hayes, K, Herrup, D, Heusch, CA, Himel, T, Hoenk, M, Hutchinson, D, Innes, WR, Jaffre, M, Jaros, JA, Juricic, I, Kadyk, JA, Karlen, D, Kent, J, Klein, SR, Koska, W, Kozanecki, W, Lankford, AJ, Larsen, RR, Levi, ME, Li, Z, Litke, AM, L̈th, V, Meyer, DI, Milliken, BD, Moffeit, KC, M̈ller, L, Nash, J, Nelson, ME, Nitz, D, Ogren, H, OShaughnessy, KF, Parker, SI, Peck, C, Perl, ML, Petersen, A, Petradza, M, Porter, FC, Rankin, P, Riles, K, Rust, DR, Sadrozinski, HFW, Schalk, TL
Publikováno v:
Von Zanthier, C; De Boer, W; Grindhammer, G; Hylen, J; Harral, B; Hearty, C; et al.(1991). Measurement of the total hadronic cross section in e+e-annihilation at s=29 GeV. Physical Review D, 43(1), 34-45. doi: 10.1103/PhysRevD.43.34. UC Irvine: Retrieved from: http://www.escholarship.org/uc/item/6968r4qg
A precise measurement of the ratio R of the total cross section e+e-hadrons to the pointlike cross section e+e-+- at a center-of-mass energy of 29.0 GeV is presented. The data were taken with the upgraded Mark II detector at the SLAC storage ring PEP
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=od_______325::cd6873f0ca694c85594684ff05892ac1
http://www.escholarship.org/uc/item/6968r4qg
http://www.escholarship.org/uc/item/6968r4qg
Autor:
Gomez-Cadenas, JJ, Heusch, CA, Abrams, G, Adolphsen, CE, Akerlof, C, Alexander, JP, Alvarez, M, Amidei, D, Baden, AR, Ballam, J
Publikováno v:
Gomez-Cadenas, JJ; Heusch, CA; Abrams, G; Adolphsen, CE; Akerlof, C; Alexander, JP; et al.(1991). Search for elastic nondiagonal lepton-pair production in e+e-annihilation at s =29 GeV. Physical Review Letters, 66(8), 1007-1010. doi: 10.1103/PhysRevLett.66.1007. UC Irvine: Retrieved from: http://www.escholarship.org/uc/item/2q27h6cf
We have searched for the annihilation of e+e- into the exclusive channels e and at s =29 GeV, using 226 and 133 pb-1, respectively, of data taken with the Mark II detector at the SLAC storage ring PEP. The resulting candidate sample is compatible wit
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=od_______325::ff365486b2c441c80ef551f954b12d12
http://www.escholarship.org/uc/item/2q27h6cf
http://www.escholarship.org/uc/item/2q27h6cf
Autor:
Komamiya, S., Abrams, G.S., Adolphsen, C.E., Averill, D., Ballam, J., Barish, B.C., Barklow, T., Barnett, B.A., Bartlett, J.G., Bethke, S., Blockus, D., Bonvicini, G., Boyarski, A., Brabson, B., Breakstone, A., Bulos, F., Burchat, P.R., Burke, D.L., Cence, R.J., Chapman, J., Chmeissani, M., Cords, D., Coupal, D.P., Dauncey, P., DeStaebler, H.C., Dorfan, D.E., Fordham, J.M., Frey, R., Fujino, D., Gan, K.K., Gatto, C., Gero, E., Gidal, G., Glanzman, T., Goldhaber, G., Gomez-Cadenas, J.J., Gratta, G., Grindhammer, G., Grosse-Wiesmann, P., Hanson, G., Harr, R., Harral, B., Harris, F.A., Hawkes, C.M., Hayes, K., Hearty, C., Heusch, C.A., Hildreth, M.D., Himel, T., Hinshaw, D.A., Hong, S.J., Hutchinson, D., Hylen, J., Innes, W.R., Jacobsen, R.G., Jaros, J.A., Jung, C.K., Kadyk, J.A., Kent, J., King, M., Klein, R., Koetke, D.S., Koska, W., Kowalski, L.A., Kozanecki, W., Kral, J.F., Kuhlen, M., Labarga, L., Lankford, A.J., Larsen, R.R., Diberder, F. Le, Levi, M.E., Litke, A.M., Lou, X.C., Luth, V., McKenna, J.A., Matthews, J.A.J.
Publikováno v:
Komamiya, S.; Abrams, G.S.; Adolphsen, C.E.; Averill, D.; Ballam, J.; Barish, B.C.; et al.(1990). Search for Nonminimal Neutral Bosons from Z-Boson Decays. Physical Review Letters. Lawrence Berkeley National Laboratory: Lawrence Berkeley National Laboratory. Retrieved from: http://www.escholarship.org/uc/item/3ns791xn
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=od_______325::37d070f6b9bdc7cd1dabd6cdbee3c77c
http://www.escholarship.org/uc/item/3ns791xn
http://www.escholarship.org/uc/item/3ns791xn
Autor:
Burchat, P.R., King, M., Abrams, G.S., Adolphsen, C.E., Averill, D., Ballam, J., Barish, B.C., Barklow, T., Barnett, B.A., Bartelt, J., Bethke, S., Blockus, D., Bonvicini, G., Boyarski, A., Brabson, B., Breakstone, A., Bulos, F., Burke, D.L., Cence, R.J., Chapman, J., Chmeissani, M., Cords, D., Coupal, D.P., Dauncey, P., DeStaebler, H.C., Dorfan, D.E., Dorfan, J.M., Drewer, D.C., Elia, R., Feldman, G.J., Fernandes, D., Field, R.C., Ford, W.T., Fordham, C., Frey, R., Fujino, D., Gan, K.K., Gatto, C., Gero, E., Gidal, G., Glanzman, T., Goldhaber, G., Gomez-Cadenas, J.J., Gratta, G., Grindhammer, G., Grosse-Wiesmann, P., Hanson, G., Harr, R., Harral, B., Harris, F.A., Hawkes, C.M., Hayes, K., Hearty, C., Heusch, C.A., Hildreth, M.D., Himel, T., Hinshaw, D.A., Hong, S.J., Hutchinson, D., Hylen, J., Innes, W.R., Jacobsen, R.G., Jaros, J.A., Jung, C.K., Kadyk, J.A., Kent, J., Klein, S.R., Koetke, D.S., Komamiya, S., Koska, W., Kowalski, L.A., Kozanecki, W., Kral, J.F., Kuhlen, M., Labarga, L., Lankford, A.J., Larsen, R.R., Diberder, F. Le, Levi, M.E., Litke, A.M., Lou, X.C., Luth, V., McKenna, J.A., Matthews, J.A.J., Mattison, T., Milliken, B.D., Moffeit, K.C., Munger, C.T., Murray, W.N., Nash, J., Ogren, H., O'Shaughnessy, K.F., Parker, S.I., Peck, C., Perl, M.L., Perrier, F., Petradza, M., Pitthan, R., Porter, F.C., Rankin, P., Riles, K., Rouse, F.R., Rust, D.R., Sadrozinski, H.F.W., Schaad, M.W., Schumm, B.A., Seiden, A., Smith, J.G., Snyder, A., Soderstrom, E., Stoker, D.P., Stroynowski, R., Swartz, M., Thun, R., Trilling, G.H., Kooten, R. Van, Voruganti, P., Wagner, S.R., Watson, S., Weber, P., Weigend, A., Weinstein, A.J., Weir, A.J., Wicklund, E., Woods, M., Wu, D.Y., Yurko, M., Zaccardelli, C., Zanthier, C. von
Publikováno v:
Burchat, P.R.; King, M.; Abrams, G.S.; Adolphsen, C.E.; Averill, D.; Ballam, J.; et al.(1990). A Search for Decays of the Z to Unstable Neutral Leptons with Mass between 2.5 and 22 GeV. Physical Review Letters. Lawrence Berkeley National Laboratory: Lawrence Berkeley National Laboratory. Retrieved from: http://www.escholarship.org/uc/item/5vg7v3tf
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=od_______325::bc476f57f1660f4498edb9830a63c110
http://www.escholarship.org/uc/item/5vg7v3tf
http://www.escholarship.org/uc/item/5vg7v3tf
Autor:
Komamiya, S, Le Diberder, F, Abrams, GS, Adolphsen, CE, Averill, D, Ballam, J, Barish, BC, Barklow, T, Barnett, BA, Bartelt, J, Bethke, S, Blockus, D
Publikováno v:
Komamiya, S; Le Diberder, F; Abrams, GS; Adolphsen, CE; Averill, D; Ballam, J; et al.(1990). Determination of ±s from a differential-jet-multiplicity distribution in e+e-collisions at ss =29 and 91 GeV. Physical Review Letters, 64(9), 987-990. doi: 10.1103/PhysRevLett.64.987. UC Berkeley: Retrieved from: http://www.escholarship.org/uc/item/0bn384cg
We measured the differential jet-multiplicity distribution in e+e- annihilation with the Mark II detector. This distribution is compared with the second-order QCD prediction and s is determined to be 0.1230.0090.005 at ssSMZ (at the SLAC Linear Colli
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=od_______325::00afec0c620b737646496bd976814c4b
http://www.escholarship.org/uc/item/0bn384cg
http://www.escholarship.org/uc/item/0bn384cg
Autor:
Abrams, GS, Adolphsen, CE, Averill, D, Ballam, J, Barish, BC, Barklow, T, Barnett, BA, Bartelt, J, Bethke, S, Blockus, D, Bonvicini, G, Boyarski, A
Publikováno v:
Abrams, GS; Adolphsen, CE; Averill, D; Ballam, J; Barish, BC; Barklow, T; et al.(1990). Measurements of charged-particle inclusive distributions in hadronic decays of the Z boson. Physical Review Letters, 64(12), 1334-1337. doi: 10.1103/PhysRevLett.64.1334. UC Berkeley: Retrieved from: http://www.escholarship.org/uc/item/2dd5d9xr
We have measured inclusive distributions for charged particles in hadronic decays of the Z boson. The variables chosen for study were charged-particle multiplicity, scaled momentum, and momenta transverse to the sphericity axes. The distributions hav
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=od_______325::c700100d2689b503a288970643f06875
http://www.escholarship.org/uc/item/2dd5d9xr
http://www.escholarship.org/uc/item/2dd5d9xr
Autor:
Barklow, T, Abrams, GS, Adolphsen, CE, Averill, D, Ballam, J, Barish, BC, Barnett, BA, Bartelt, J, Bethke, S, Blockus, D, Bonvicini, G, Boyarski, A
Publikováno v:
Barklow, T; Abrams, GS; Adolphsen, CE; Averill, D; Ballam, J; Barish, BC; et al.(1990). Searches for supersymmetric particles produced in Z-boson decay. Physical Review Letters, 64(25), 2984-2987. doi: 10.1103/PhysRevLett.64.2984. UC Berkeley: Retrieved from: http://www.escholarship.org/uc/item/6x34q50p
We have searched for supersymmetric particles in 528 Z decays with the Mark II detector at the SLAC Linear Collider. We place 95%-confidence-level lower mass limits on degenerate squarks, nondegenerate up-type squarks, nondegenerate down-type squarks
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=od_______325::9e146c428f454beb8fa819b22c1818ea
http://www.escholarship.org/uc/item/6x34q50p
http://www.escholarship.org/uc/item/6x34q50p
Autor:
Kral, JF, Abrams, GS, Adolphsen, CE, Averill, D, Ballam, J, Barish, BC, Barklow, T, Barnett, BA, Bartelt, J, Bethke, S, Blockus, D, Bonvicini, G
Publikováno v:
Kral, JF; Abrams, GS; Adolphsen, CE; Averill, D; Ballam, J; Barish, BC; et al.(1990). Measurement of the bb fraction in hadronic Z decays. Physical Review Letters, 64(11), 1211-1214. doi: 10.1103/PhysRevLett.64.1211. UC Berkeley: Retrieved from: http://www.escholarship.org/uc/item/8rh8b4t7
Using isolated leptons reconstructed in the Mark II detector to tag bb events, we measure the fraction of bb events in hadronic Z0 decays to be 0.23-0.09+0.11, in good agreement with the standard-model prediction of 0.22. We find (Zbb)=0.43-0.17+0.21
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=od_______325::82802594a60755c5e20c9ca9a7051f1c
http://www.escholarship.org/uc/item/8rh8b4t7
http://www.escholarship.org/uc/item/8rh8b4t7
Autor:
Swartz, M, Abrams, GS, Adolphsen, CE, Averill, D, Ballam, J, Barish, BC, Barklow, T, Barnett, BA, Bartelt, J, Bethke, S, Blockus, D, Bonvicini, G
Publikováno v:
Swartz, M; Abrams, GS; Adolphsen, CE; Averill, D; Ballam, J; Barish, BC; et al.(1990). Search for doubly charged Higgs scalars in Z decay. Physical Review Letters, 64(24), 2877-2880. doi: 10.1103/PhysRevLett.64.2877. UC Berkeley: Retrieved from: http://www.escholarship.org/uc/item/4mm7s7w9
We describe a search for the decay of the Z boson into pairs of doubly charged Higgs bosons with the Mark II detector operating at the SLAC Linear Collider. Each Higgs boson is assumed to decay into a same-sign leptonic pair. No event candidates are
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=od_______325::f8cc2c2bedf54e7cf97227ecef0a174b
http://www.escholarship.org/uc/item/4mm7s7w9
http://www.escholarship.org/uc/item/4mm7s7w9