Zobrazeno 1 - 10
of 26
pro vyhledávání: '"D.C. Darvill"'
Autor:
W. Farr, Y. Totsuka, Makoto Minowa, H. Rieseberg, Masatoshi Imori, T. Nosaki, Shoichi Yamada, J. E. Olsson, J. Heintze, D. Clarke, K. Stephens, Gareth Hughes, I. P. Duerdoth, A. A. Macbeth, W. L. Yen, F. Foster, Tatsuo Kobayashi, G. Heinzelmann, M. Helm, John Allison, H. Wriedt, D. Cords, J. Armitage, J. von Krogh, P. Dittmann, R. Hedgecock, M. Koshiba, G. Weber, A. Petersen, P. Warming, H. Matsumura, Yosuke Watanabe, C. Yanagisawa, D. Haidt, R. Felst, T. Canzler, P. Lennert, S. Kawabata, R. Eichler, H. Krehbiel, S. Orito, Harrison Prosper, B. Naroska, D.C. Darvill, W. Bartel, P. G. Murphy, P. Steffen, H. Riege, H. Drumm, A. Sato, F. K. Loebinger, D. Mercer, H. Takeda, R. D. Heuer, M. C. Goddard, G. F. Pearce, E. Elsen, L. H. O'Neill, Sachio Komamiya, T. Suda, A. Wagner, E. Gadermann, R. Marshall, H. E. Mills
Publikováno v:
Physics Letters B. 88:171-176
The cross section for the process e+e− → multihadrons has been measured at the highest PETRA energies. We measure R (the total cross section in units of the point-like e+e- → μ+μ- cross section) to be 2.9 ± 0.7, 4.0 ± 0.5, 4.6 ± 0.4 and 4.
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::c0653a0975c90594451be3d4522c07ec
https://doi.org/10.1016/0370-2693(79)90139-4
https://doi.org/10.1016/0370-2693(79)90139-4
Autor:
K. Stephens, M. Davenport, Robert Thompson, M. Ibbotson, B. Dickinson, D.C. Darvill, H. E. Mills, S.R. Hill, O. Vapenikova, G. Hughes, J. Allison, F. Foster, J.V. Morris, J. Wright, A. Latham
Publikováno v:
Nuclear Physics B. 181:403-420
The ratio of π − to π + electroproduction cross sections from deuterons has been measured in the resonance region at an average four-momentum transfer squared of 0.5 (GeV/ c ) 2 . Results are presented over a wide range of pion production angles
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::47f85d81e67f69c80063fab2a92ca8c7
https://doi.org/10.1016/0550-3213(81)90533-2
https://doi.org/10.1016/0550-3213(81)90533-2
Autor:
J.V. Morris, M. Ibbotson, J. Wright, D.C. Darvill, D. Baxter, R. J. Thompson, K. Stephens, H. E. Mills, J. Allison, O. Vapenikova, S.R. Hill, G. Hughes, R. Lawson, A. Latham, F. Foster, B. Dickinson, W.R. Rawlinson, I. Booth, M. Davenport
Publikováno v:
Nuclear Physics B. 156:58-92
Data are presented for the reaction ep → ep π 0 at a nominal four-momentum transfer squared of 0.5 (GeV/ c ) 2 . The data were obtained using an extracted electron beam from NINA and two magnetic spectrometers for coincidence detection of the elec
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::065362a8d5fc1d695cf1fd03e3ff4cc8
https://doi.org/10.1016/0550-3213(79)90494-2
https://doi.org/10.1016/0550-3213(79)90494-2
Autor:
T. Kobayashi, I. P. Duerdoth, J. von Krogh, H. Rieseberg, L. H. O'Neill, Masatoshi Imori, Y. Totsuka, C. Yanagisawa, H. E. Mills, A. A. Macbeth, Shoichi Yamada, A. Sato, K. Stephens, H. Matsumura, H. Drumm, M. Helm, B. T. King, A. H. Ball, J. F. Hassard, Takafumi Suda, D.C. Darvill, Gareth Hughes, Yosuke Watanabe, John Allison, Mitsuaki Nozaki, S. Kawabata, J. Heintze, A. Petersen, P. Warming, J. Olsson, H. Krehbiel, S. Orito, D. Haidt, F. Foster, Makoto Minowa, W. Bartel, H. Takeda, R. D. Heuer, B. Naroska, Harrison Prosper, T. Nozaki, G. Heinzelmann, E. Elsen, R. Marshall, P. Steffen, D. Clarke, M. C. Goddard, R. Eichler, P. Dittman, P. Lennert, A. Wagner, W. L. Yen, F. K. Loebinger, Sachio Komamiya, G. Weber, P. G. Murphy, G. F. Pearce, R. Felst, H. Wriedt, M. Koshiba, Hugh McCann, D. Cords
Publikováno v:
Physics Letters B. 99:281-286
The processes e+e− → e+e− and μ+μ− have been studied at PETRA using the JADE detector. The data, which were collected at s-values of up to 1300 GeV2 have been analysed in terms of an electro-weak extension of QED to obtain values for the we
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::30996382c2d747e3572848a79350d287
https://doi.org/10.1016/0370-2693(81)91126-6
https://doi.org/10.1016/0370-2693(81)91126-6
Autor:
B. Dickinson, J.V. Morris, J. Wright, K. Stephens, M. Ibbotson, H. E. Mills, J. Allison, O. Vapenikova, G. Hughes, M. Davenport, A. Latham, W.R. Rawlinson, D.C. Darvill, F. Foster, R. J. Thompson
Publikováno v:
Zeitschrift für Physik C Particles and Fields. 37:251-258
We present differential cross-sections for the electro-production of single charged pions from deuterium for a virtual photon mass squared −1.0 GeV2 and for pion nucleon masses in the range 1.23–1.68 GeV (the 1st and 2nd resonance regions). The d
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::daab0c02f83ddc32e9cdc6b7a6047f9b
https://doi.org/10.1007/bf01579910
https://doi.org/10.1007/bf01579910
Autor:
A. Wagner, B. Naroska, R. Hedgecock, E. Elsen, Makoto Minowa, Sachio Komamiya, Yosuke Watanabe, H. Rieseberg, Masatoshi Imori, I. P. Duerdoth, C. Yanagisawa, M. C. Goddard, K. Stephens, P. Lennert, A. A. Macbeth, M. Helm, B. T. King, A. Petersen, P. Warming, R. Eichler, L. H. O'Neill, A. H. Ball, G. F. Pearce, W. Bartel, D. Haidt, H. Takeda, R. D. Heuer, G. Weber, R. Marshall, H. E. Mills, Shoichi Yamada, H. Matsumura, John Allison, Hugh McCann, D. Cords, J. Armitage, T. Kobayashi, W. L. Yen, Gareth Hughes, H. Drumm, S. Kawabata, P. Dittmann, H. Krehbiel, Harrison Prosper, T. Nozaki, A. Sato, Takafumi Suda, F. K. Loebinger, H. Wriedt, T. Canzler, S. Orito, F. Foster, Y. Totsuka, D. Clarke, G. Heinzelmann, J. E. Olsson, J. Heintze, R. Felst, P. Steffen, J. von Krogh, M. Koshiba, P. G. Murphy, J. F. Hassard, D.C. Darvill
Publikováno v:
Physics Letters B. 92:206-210
Differential cross sections for the reactions e+e− → e+e− and e+e− → γγ are given for energies between 27.7 and 31.6 GeV. The results agree with the predictions of standard quantum electrodynamics and set lower limits to the usual cut-off
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::7efbac1d0371c52772fcc9bb14182de3
https://doi.org/10.1016/0370-2693(80)90338-x
https://doi.org/10.1016/0370-2693(80)90338-x
Autor:
F. Foster, M. Ibbotson, J.V. Morris, J. Wright, M. Davenport, D. Baxter, D.C. Darvill, B. Dickinson, W.R. Rawlinson, J. Allison, K. Stephens, R. J. Thompson, H. E. Mills, O. Vapenikova, G. Hughes, I. Booth, R. Lawson, A. Latham, S.R. Hill
Publikováno v:
Nuclear Physics B. 189:1-14
Data are presented for the reaction ep → ep π 0 at a nominal momentum transfer squared of 1.0 (GeV/ c ) 2 . The data were obtained using an extracted electron beam from NINA and two magnetic spectrometers for coincidence detection of the electron
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::16cb4cce278b2cef8b1dacf9bdf6062a
https://doi.org/10.1016/0550-3213(81)90078-x
https://doi.org/10.1016/0550-3213(81)90078-x
Autor:
S.R. Hill, K. Stephens, J.V. Morris, H. E. Mills, A. Latham, O. Vapenikova, G. Hughes, B. Dickson, M. Ibbotson, F. Foster, J. Allison, R. J. Thompson, D.C. Darvill, J. Wright, M. Davenport
Publikováno v:
Physics Letters B. 73:495-499
The rates for forward electroproduction of single charged pions from deutrium have been measured in the resonance region, at a virtual photon mass squared ≈−0.5( GeV/ c 2 ) 2 . Results are presented in the form of a π− to π + cross-section ra
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::af662da9bcd24b239e4bc4eb12905915
https://doi.org/10.1016/0370-2693(78)90774-8
https://doi.org/10.1016/0370-2693(78)90774-8
Autor:
P. Dittmann, C. Yanagisawa, Takafumi Suda, Hugh McCann, S. Orito, A. H. Ball, J. F. Hassard, G. Weber, Sachio Komamiya, Makoto Minowa, D.C. Darvill, S. Kawabata, J. von Krogh, A. Petersen, P. Warming, M. C. Goddard, R. Eichler, D. Haidt, H. Krehbiel, W. Bartel, Harrison Prosper, K. Stephens, W. L. Yen, B. Naroska, M. Helm, B. T. King, I. P. Duerdoth, H. Drumm, P. Steffen, A. Sato, Yosuke Watanabe, F. Foster, D. Cords, J. Armitage, H. Wriedt, R. Felst, J. E. Olsson, J. Heintze, P. Lennert, H. E. Mills, T. Kobayashi, H. Takeda, R. D. Heuer, G. Heinzelmann, A. A. Macbeth, Y. Totsuka, P. G. Murphy, H. Matsumura, R. Marshall, M. Koshiba, H. Rieseberg, Masatoshi Imori, L. H. O'Neill, A. Wagner, E. Elsen, G. F. Pearce, D. Clarke, Shoichi Yamada, Gareth Hughes, F. K. Loebinger, John Allison, T. Nozaki
Publikováno v:
Physics Letters B. 99:277-280
We have observed the production of prompt muons in e + e − annihilation in the centre of mass energy range 33.0 GeV to 35.8 GeV. The rate of such muons with momentum greater than 1.4 GeV was measured to be 0.069 ± 0.024 per multiparticle event. Wh
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::c8af1ec24c7bf5ffddf2c23b6740335a
https://doi.org/10.1016/0370-2693(81)91125-4
https://doi.org/10.1016/0370-2693(81)91125-4
Autor:
A. Lathem, D.C. Darvill, F. Foster, H. E. Mills, O. Vapenikova, J. Wright, M. Davenport, J.V. Morris, G. Gughes, J. Allison, K. Stephens, Robert Thompson, M. Ibbotson, B. Dickinson, S.R. Hill
Publikováno v:
Physics Letters B. 86:211-214
The ratio of π - to π + electroproduction cross sections from deuterium has been measured in the resonance region, at a four-momentum transfer squared close to −1.0 (GeV/ c ) 2 . Results in the forward direction are presented and a comparison is
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::65820da4e880fa8d5b4d43941a679c7a
https://doi.org/10.1016/0370-2693(79)90823-2
https://doi.org/10.1016/0370-2693(79)90823-2