Search for direct single-photon production at large pT in photon-proton collisions at √s = 62.4 GeV

A. L.S. Angelis; H. J. Besch; B. J. Blumenfeld; L. Camilleri; T. J. Chapin; R. L. Cool; C. Del Papa; L. Di Lella; Z. Dimčovski; R. J. Hollebeek; L. M. Lederman; D. A. Levinthal; J. T. Linnemann; C. B. Newman; N. Phinney; B. G. Pope; S. H. Pordes; A. F. Rothenberg; R. W. Rusack; A. M. Segar; J. Singh-Sidhu; A. M. Smith; M. J. Tannenbaum; R. A. Vidal; J. S. Wallace-Hadrill; J. M. Yelton; K. K. Young; CERN-Columbia-Oxford-Rockefeller (CCOR) Collaboration

doi:10.1016/0370-2693(80)90836-9

Search for direct single-photon production at large p_T in photon-proton collisions at √s = 62.4 GeV

A. L.S. Angelis, H. J. Besch, B. J. Blumenfeld, L. Camilleri, T. J. Chapin, R. L. Cool, C. Del Papa, L. Di Lella, Z. Dimčovski, R. J. Hollebeek, L. M. Lederman, D. A. Levinthal, J. T. Linnemann, C. B. Newman, N. Phinney, B. G. Pope, S. H. Pordes, A. F. Rothenberg, R. W. Rusack, A. M. SegarJ. Singh-Sidhu, A. M. Smith, M. J. Tannenbaum, R. A. Vidal, J. S. Wallace-Hadrill, J. M. Yelton, K. K. Young, CERN-Columbia-Oxford-Rockefeller (CCOR) Collaboration

Physics and Astronomy (Twin Cities)

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Abstract

As part of a study of large p_T phenomena in photon-proton collisions at the CERN ISR, a search for direct single photon production has been performed. A statistical division of the data sample into the fraction consistent with single photon and the fraction due to multiphoton decays of neutral hadrons is accomplished by measuring the average conversion probability for the sample in a one radiation length thick converter. The fraction of the sample attributable to direct single photon production is 〈γ/all〉 = 0.074 ± 0.012 for 6 GeV/c < p_T 10 GeV/c, and 〈γ/all〉 = 0.26 ± 0.04 for p_T 〉 10 GeV/c, with an additional systematic uncertainty of ±0.05 for both values.

Original language	English (US)
Pages (from-to)	106-112
Number of pages	7
Journal	"Physics Letters, Section B: Nuclear, Elementary Particle and High-Energy Physics"
Volume	94
Issue number	1
DOIs	https://doi.org/10.1016/0370-2693(80)90836-9
State	Published - 1980

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Angelis, A. L. S., Besch, H. J., Blumenfeld, B. J., Camilleri, L., Chapin, T. J., Cool, R. L., Del Papa, C., Di Lella, L., Dimčovski, Z., Hollebeek, R. J., Lederman, L. M., Levinthal, D. A., Linnemann, J. T., Newman, C. B., Phinney, N., Pope, B. G., Pordes, S. H., Rothenberg, A. F., Rusack, R. W., ... CERN-Columbia-Oxford-Rockefeller (CCOR) Collaboration (1980). Search for direct single-photon production at large p_T in photon-proton collisions at √s = 62.4 GeV. "Physics Letters, Section B: Nuclear, Elementary Particle and High-Energy Physics", 94(1), 106-112. https://doi.org/10.1016/0370-2693(80)90836-9

Angelis, ALS, Besch, HJ, Blumenfeld, BJ, Camilleri, L, Chapin, TJ, Cool, RL, Del Papa, C, Di Lella, L, Dimčovski, Z, Hollebeek, RJ, Lederman, LM, Levinthal, DA, Linnemann, JT, Newman, CB, Phinney, N, Pope, BG, Pordes, SH, Rothenberg, AF, Rusack, RW, Segar, AM, Singh-Sidhu, J, Smith, AM, Tannenbaum, MJ, Vidal, RA, Wallace-Hadrill, JS, Yelton, JM, Young, KK & CERN-Columbia-Oxford-Rockefeller (CCOR) Collaboration 1980, 'Search for direct single-photon production at large p_T in photon-proton collisions at √s = 62.4 GeV', "Physics Letters, Section B: Nuclear, Elementary Particle and High-Energy Physics", vol. 94, no. 1, pp. 106-112. https://doi.org/10.1016/0370-2693(80)90836-9

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title = "Search for direct single-photon production at large pT in photon-proton collisions at √s = 62.4 GeV",

abstract = "As part of a study of large pT phenomena in photon-proton collisions at the CERN ISR, a search for direct single photon production has been performed. A statistical division of the data sample into the fraction consistent with single photon and the fraction due to multiphoton decays of neutral hadrons is accomplished by measuring the average conversion probability for the sample in a one radiation length thick converter. The fraction of the sample attributable to direct single photon production is 〈γ/all〉 = 0.074 ± 0.012 for 6 GeV/c < pT 10 GeV/c, and 〈γ/all〉 = 0.26 ± 0.04 for pT 〉 10 GeV/c, with an additional systematic uncertainty of ±0.05 for both values.",

author = "Angelis, {A. L.S.} and Besch, {H. J.} and Blumenfeld, {B. J.} and L. Camilleri and Chapin, {T. J.} and Cool, {R. L.} and {Del Papa}, C. and {Di Lella}, L. and Z. Dim{\v c}ovski and Hollebeek, {R. J.} and Lederman, {L. M.} and Levinthal, {D. A.} and Linnemann, {J. T.} and Newman, {C. B.} and N. Phinney and Pope, {B. G.} and Pordes, {S. H.} and Rothenberg, {A. F.} and Rusack, {R. W.} and Segar, {A. M.} and J. Singh-Sidhu and Smith, {A. M.} and Tannenbaum, {M. J.} and Vidal, {R. A.} and Wallace-Hadrill, {J. S.} and Yelton, {J. M.} and Young, {K. K.} and {CERN-Columbia-Oxford-Rockefeller (CCOR) Collaboration}",

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AU - Angelis, A. L.S.

AU - Besch, H. J.

AU - Blumenfeld, B. J.

AU - Camilleri, L.

AU - Chapin, T. J.

AU - Cool, R. L.

AU - Del Papa, C.

AU - Di Lella, L.

AU - Dimčovski, Z.

AU - Hollebeek, R. J.

AU - Lederman, L. M.

AU - Levinthal, D. A.

AU - Linnemann, J. T.

AU - Newman, C. B.

AU - Phinney, N.

AU - Pope, B. G.

AU - Pordes, S. H.

AU - Rothenberg, A. F.

AU - Rusack, R. W.

AU - Segar, A. M.

AU - Singh-Sidhu, J.

AU - Smith, A. M.

AU - Tannenbaum, M. J.

AU - Vidal, R. A.

AU - Wallace-Hadrill, J. S.

AU - Yelton, J. M.

AU - Young, K. K.

AU - CERN-Columbia-Oxford-Rockefeller (CCOR) Collaboration

PY - 1980

Y1 - 1980

N2 - As part of a study of large pT phenomena in photon-proton collisions at the CERN ISR, a search for direct single photon production has been performed. A statistical division of the data sample into the fraction consistent with single photon and the fraction due to multiphoton decays of neutral hadrons is accomplished by measuring the average conversion probability for the sample in a one radiation length thick converter. The fraction of the sample attributable to direct single photon production is 〈γ/all〉 = 0.074 ± 0.012 for 6 GeV/c < pT 10 GeV/c, and 〈γ/all〉 = 0.26 ± 0.04 for pT 〉 10 GeV/c, with an additional systematic uncertainty of ±0.05 for both values.

AB - As part of a study of large pT phenomena in photon-proton collisions at the CERN ISR, a search for direct single photon production has been performed. A statistical division of the data sample into the fraction consistent with single photon and the fraction due to multiphoton decays of neutral hadrons is accomplished by measuring the average conversion probability for the sample in a one radiation length thick converter. The fraction of the sample attributable to direct single photon production is 〈γ/all〉 = 0.074 ± 0.012 for 6 GeV/c < pT 10 GeV/c, and 〈γ/all〉 = 0.26 ± 0.04 for pT 〉 10 GeV/c, with an additional systematic uncertainty of ±0.05 for both values.

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IS - 1

ER -

Search for direct single-photon production at large p_T in photon-proton collisions at √s = 62.4 GeV

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