A study of the production of two direct photons in pp collisions at the CERN ISR

T. Åkesson; M. G. Albrow; S. Almehed; E. Anassontzis; R. Batley; O. Benary; H. Boggild; O. Botner; H. Breuker; V. Burkert; B. Callen; R. Carosi; A. A. Carter; J. R. Carter; P. C. Cecil; V. Chernyatin; Y. Choi; W. E. Cleland; S. Dagan; E. Dahl-Jensen; I. Dahl-Jensen; P. Dam; G. Damgaard; B. Dolgoshein; S. Eidelman; W. M. Evans; C. W. Fabjan; S. Frankel; W. Frati; I. Gavrilenko; U. Goerlach; Y. Goloubdov; H. Gordon; K. H. Hansen; V. Hedberg; J. W. Hiddleston; G. Jarlskog; T. Jensen; A. Kalinovsky; V. Kantserov; S. Katsanevas; C. Kourkoumelis; R. Kroeger; K. Kulka; D. Lissauer; B. Lorstad; I. Mannelli; A. Markou; S. Mayburov; N. A. McCubbin; U. Mjornmark; R. Moller; W. Molzon; P. Nevsky; B. S. Nielsen; L. H. Olsen; Y. Oren; G. Piskounov; L. K. Resvanis; A. Rudge; J. Schukraft; A. Shmeleva; V. Sidorov; H. Specht; I. Stumer; M. Sullivan; J. A. Thompson; G. Thorstenson; P. Vasiliev; E. Vella; J. Williamson; W. J. Willis; C. Woody; W. A. Zajc

doi:10.1007/BF01550770

A study of the production of two direct photons in pp collisions at the CERN ISR

T. Åkesson^*, M. G. Albrow, S. Almehed, E. Anassontzis, R. Batley, O. Benary, H. Boggild, O. Botner, H. Breuker, V. Burkert, B. Callen, R. Carosi, A. A. Carter, J. R. Carter, P. C. Cecil, V. Chernyatin, Y. Choi, W. E. Cleland, S. Dagan, E. Dahl-JensenI. Dahl-Jensen, P. Dam, G. Damgaard, B. Dolgoshein, S. Eidelman, W. M. Evans, C. W. Fabjan, S. Frankel, W. Frati, I. Gavrilenko, U. Goerlach, Y. Goloubdov, H. Gordon, K. H. Hansen, V. Hedberg, J. W. Hiddleston, G. Jarlskog, T. Jensen, A. Kalinovsky, V. Kantserov, S. Katsanevas, C. Kourkoumelis, R. Kroeger, K. Kulka, D. Lissauer, B. Lorstad, I. Mannelli, A. Markou, S. Mayburov, N. A. McCubbin, U. Mjornmark, R. Moller, W. Molzon, P. Nevsky, B. S. Nielsen, L. H. Olsen, Y. Oren, G. Piskounov, L. K. Resvanis, A. Rudge, J. Schukraft, A. Shmeleva, V. Sidorov, H. Specht, I. Stumer, M. Sullivan, J. A. Thompson, G. Thorstenson, P. Vasiliev, E. Vella, J. Williamson, W. J. Willis, C. Woody, W. A. Zajc

^*Corresponding author for this work

School of Physics and Astronomy

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Abstract

We have studied the process pp→γγ+X at {Mathematical expression} GeV in the central rapidity region. We report a positive signal at 96% C.L., a ratio γγ/e⁺e^-=4.0±3.0 when the transverse momentum of each photon is above 2 GeV/c, and a cross-section dσ/dydM_γγ=(5.5±2.7)×10^-34 cm²/GeV when |y|<0.5,4<M_γγ<6 GeV.

Original language	English
Pages (from-to)	491-497
Number of pages	7
Journal	European Physical Journal C
Volume	32
Issue number	4
DOIs	https://doi.org/10.1007/BF01550770
State	Published - Dec 1986

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Åkesson, T., Albrow, M. G., Almehed, S., Anassontzis, E., Batley, R., Benary, O., Boggild, H., Botner, O., Breuker, H., Burkert, V., Callen, B., Carosi, R., Carter, A. A., Carter, J. R., Cecil, P. C., Chernyatin, V., Choi, Y., Cleland, W. E., Dagan, S., ... Zajc, W. A. (1986). A study of the production of two direct photons in pp collisions at the CERN ISR. European Physical Journal C, 32(4), 491-497. https://doi.org/10.1007/BF01550770

@article{f48d83fde2ba409f9235ab1b5db9e8af,

title = "A study of the production of two direct photons in pp collisions at the CERN ISR",

abstract = "We have studied the process pp→γγ+X at {Mathematical expression} GeV in the central rapidity region. We report a positive signal at 96% C.L., a ratio γγ/e+e-=4.0±3.0 when the transverse momentum of each photon is above 2 GeV/c, and a cross-section dσ/dydMγγ=(5.5±2.7)×10-34 cm2/GeV when |y|<0.5,4γγ<6 GeV.",

author = "T. {\AA}kesson and Albrow, {M. G.} and S. Almehed and E. Anassontzis and R. Batley and O. Benary and H. Boggild and O. Botner and H. Breuker and V. Burkert and B. Callen and R. Carosi and Carter, {A. A.} and Carter, {J. R.} and Cecil, {P. C.} and V. Chernyatin and Y. Choi and Cleland, {W. E.} and S. Dagan and E. Dahl-Jensen and I. Dahl-Jensen and P. Dam and G. Damgaard and B. Dolgoshein and S. Eidelman and Evans, {W. M.} and Fabjan, {C. W.} and S. Frankel and W. Frati and I. Gavrilenko and U. Goerlach and Y. Goloubdov and H. Gordon and Hansen, {K. H.} and V. Hedberg and Hiddleston, {J. W.} and G. Jarlskog and T. Jensen and A. Kalinovsky and V. Kantserov and S. Katsanevas and C. Kourkoumelis and R. Kroeger and K. Kulka and D. Lissauer and B. Lorstad and I. Mannelli and A. Markou and S. Mayburov and McCubbin, {N. A.} and U. Mjornmark and R. Moller and W. Molzon and P. Nevsky and Nielsen, {B. S.} and Olsen, {L. H.} and Y. Oren and G. Piskounov and Resvanis, {L. K.} and A. Rudge and J. Schukraft and A. Shmeleva and V. Sidorov and H. Specht and I. Stumer and M. Sullivan and Thompson, {J. A.} and G. Thorstenson and P. Vasiliev and E. Vella and J. Williamson and Willis, {W. J.} and C. Woody and Zajc, {W. A.}",

year = "1986",

month = dec,

doi = "10.1007/BF01550770",

language = "אנגלית",

volume = "32",

pages = "491--497",

journal = "European Physical Journal C",

issn = "0170-9739",

publisher = "Springer Nature",

number = "4",

}

Åkesson, T, Albrow, MG, Almehed, S, Anassontzis, E, Batley, R, Benary, O, Boggild, H, Botner, O, Breuker, H, Burkert, V, Callen, B, Carosi, R, Carter, AA, Carter, JR, Cecil, PC, Chernyatin, V, Choi, Y, Cleland, WE, Dagan, S, Dahl-Jensen, E, Dahl-Jensen, I, Dam, P, Damgaard, G, Dolgoshein, B, Eidelman, S, Evans, WM, Fabjan, CW, Frankel, S, Frati, W, Gavrilenko, I, Goerlach, U, Goloubdov, Y, Gordon, H, Hansen, KH, Hedberg, V, Hiddleston, JW, Jarlskog, G, Jensen, T, Kalinovsky, A, Kantserov, V, Katsanevas, S, Kourkoumelis, C, Kroeger, R, Kulka, K, Lissauer, D, Lorstad, B, Mannelli, I, Markou, A, Mayburov, S, McCubbin, NA, Mjornmark, U, Moller, R, Molzon, W, Nevsky, P, Nielsen, BS, Olsen, LH, Oren, Y, Piskounov, G, Resvanis, LK, Rudge, A, Schukraft, J, Shmeleva, A, Sidorov, V, Specht, H, Stumer, I, Sullivan, M, Thompson, JA, Thorstenson, G, Vasiliev, P, Vella, E, Williamson, J, Willis, WJ, Woody, C & Zajc, WA 1986, 'A study of the production of two direct photons in pp collisions at the CERN ISR', European Physical Journal C, vol. 32, no. 4, pp. 491-497. https://doi.org/10.1007/BF01550770

TY - JOUR

T1 - A study of the production of two direct photons in pp collisions at the CERN ISR

AU - Åkesson, T.

AU - Albrow, M. G.

AU - Almehed, S.

AU - Anassontzis, E.

AU - Batley, R.

AU - Benary, O.

AU - Boggild, H.

AU - Botner, O.

AU - Breuker, H.

AU - Burkert, V.

AU - Callen, B.

AU - Carosi, R.

AU - Carter, A. A.

AU - Carter, J. R.

AU - Cecil, P. C.

AU - Chernyatin, V.

AU - Choi, Y.

AU - Cleland, W. E.

AU - Dagan, S.

AU - Dahl-Jensen, E.

AU - Dahl-Jensen, I.

AU - Dam, P.

AU - Damgaard, G.

AU - Dolgoshein, B.

AU - Eidelman, S.

AU - Evans, W. M.

AU - Fabjan, C. W.

AU - Frankel, S.

AU - Frati, W.

AU - Gavrilenko, I.

AU - Goerlach, U.

AU - Goloubdov, Y.

AU - Gordon, H.

AU - Hansen, K. H.

AU - Hedberg, V.

AU - Hiddleston, J. W.

AU - Jarlskog, G.

AU - Jensen, T.

AU - Kalinovsky, A.

AU - Kantserov, V.

AU - Katsanevas, S.

AU - Kourkoumelis, C.

AU - Kroeger, R.

AU - Kulka, K.

AU - Lissauer, D.

AU - Lorstad, B.

AU - Mannelli, I.

AU - Markou, A.

AU - Mayburov, S.

AU - McCubbin, N. A.

AU - Mjornmark, U.

AU - Moller, R.

AU - Molzon, W.

AU - Nevsky, P.

AU - Nielsen, B. S.

AU - Olsen, L. H.

AU - Oren, Y.

AU - Piskounov, G.

AU - Resvanis, L. K.

AU - Rudge, A.

AU - Schukraft, J.

AU - Shmeleva, A.

AU - Sidorov, V.

AU - Specht, H.

AU - Stumer, I.

AU - Sullivan, M.

AU - Thompson, J. A.

AU - Thorstenson, G.

AU - Vasiliev, P.

AU - Vella, E.

AU - Williamson, J.

AU - Willis, W. J.

AU - Woody, C.

AU - Zajc, W. A.

PY - 1986/12

Y1 - 1986/12

N2 - We have studied the process pp→γγ+X at {Mathematical expression} GeV in the central rapidity region. We report a positive signal at 96% C.L., a ratio γγ/e+e-=4.0±3.0 when the transverse momentum of each photon is above 2 GeV/c, and a cross-section dσ/dydMγγ=(5.5±2.7)×10-34 cm2/GeV when |y|<0.5,4γγ<6 GeV.

AB - We have studied the process pp→γγ+X at {Mathematical expression} GeV in the central rapidity region. We report a positive signal at 96% C.L., a ratio γγ/e+e-=4.0±3.0 when the transverse momentum of each photon is above 2 GeV/c, and a cross-section dσ/dydMγγ=(5.5±2.7)×10-34 cm2/GeV when |y|<0.5,4γγ<6 GeV.

UR - http://www.scopus.com/inward/record.url?scp=0008915476&partnerID=8YFLogxK

U2 - 10.1007/BF01550770

DO - 10.1007/BF01550770

M3 - ???researchoutput.researchoutputtypes.contributiontojournal.article???

AN - SCOPUS:0008915476

SN - 0170-9739

VL - 32

SP - 491

EP - 497

JO - European Physical Journal C

JF - European Physical Journal C

IS - 4

ER -

A study of the production of two direct photons in pp collisions at the CERN ISR

Abstract

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