Measurement of single spin asymmetry for direct photon production in pp collisions at 200 GeV/c

D. L. Adams; N. Achurin; N. I. Belikov; A. Bravar; J. Bystricky; M. D. Corcoran; J. D. Cossairt; J. Cranshaw; A. A. Derevschikov; H. En'yo; H. Funahashi; Y. Goto; O. A. Grachov; D. P. Grosnick; D. A. Hill; T. Iijima; K. Imai; Y. Itow; K. Iwatani; K. W. Krueger; K. Kuroda; F. Lehar; A. de Lesquen; D. Lopiano; F. C. Luehring; T. Maki; S. Makino; A. Masaike; Yu A. Matulenko; A. P. Meschanin; A. Michalowicz; D. H. Miller; K. Miyake; T. Nagamine; F. Nessi-Tedaldi; M. Nessi; C. Nguyen; S. B. Nurushev; Y. Ohashi; Y. Onel; D. I. Patalakha; G. Pauletta; A. Penzo; A. L. Read; J. B. Roberts; L. van Rossum; V. L. Rykov; N. Saito; G. Salvato; P. Schiavon; T. Shima; J. Skeens; V. L. Solovyanov; H. Spinka; R. Takashima; F. Takeutchi; N. Tamura; N. Tanaka; D. G. Underwood; A. N. Vasiliev; A. Villari; J. L. White; S. Yamashita; A. Yokosawa; T. Yoshida; A. Zanetti

doi:10.1016/0370-2693(94)01695-9

Measurement of single spin asymmetry for direct photon production in pp collisions at 200 GeV/c

D. L. Adams, N. Achurin, N. I. Belikov, A. Bravar, J. Bystricky, M. D. Corcoran, J. D. Cossairt, J. Cranshaw, A. A. Derevschikov, H. En'yo, H. Funahashi, Y. Goto, O. A. Grachov, D. P. Grosnick, D. A. Hill, T. Iijima, K. Imai, Y. Itow, K. Iwatani, K. W. KruegerK. Kuroda, F. Lehar, A. de Lesquen, D. Lopiano, F. C. Luehring, T. Maki, S. Makino, A. Masaike, Yu A. Matulenko, A. P. Meschanin, A. Michalowicz, D. H. Miller, K. Miyake, T. Nagamine, F. Nessi-Tedaldi, M. Nessi, C. Nguyen, S. B. Nurushev, Y. Ohashi, Y. Onel, D. I. Patalakha, G. Pauletta, A. Penzo, A. L. Read, J. B. Roberts, L. van Rossum, V. L. Rykov, N. Saito, G. Salvato, P. Schiavon, T. Shima, J. Skeens, V. L. Solovyanov, H. Spinka, R. Takashima, F. Takeutchi, N. Tamura, N. Tanaka, D. G. Underwood, A. N. Vasiliev, A. Villari, J. L. White, S. Yamashita, A. Yokosawa, T. Yoshida, A. Zanetti

Physics

Research output: Contribution to journal › Article › peer-review

57 Scopus citations

Abstract

The single spin asymmetry for inclusive direct-photon production has been measured using a polarized proton beam of 200 GeV/c with an unpolarized proton target at -0.15 < xf < 0.15 and 2.5 < pt < 3.1 GeV/c at Fermilab. The data on the cross section for pp → γX at 2.5 < pt < 3.8 GeV/c are also provided. The measurement was done using lead-glass calorimeters and photon detectors which surrounded the fiducial area of the calorimeters. Background rejection has been done using these surrounding photon detectors. The cross section obtained is consistent with the results of previous measurements assuming a nuclear dependence of A^1.0. The single spin asymmetry, A_N, for the direct-photon production is consistent with zero within experimental uncertainty.

Original language	English
Pages (from-to)	569-575
Number of pages	7
Journal	Physics Letters B
Volume	345
Issue number	4
DOIs	https://doi.org/10.1016/0370-2693(94)01695-9
State	Published - Feb 23 1995

Access to Document

10.1016/0370-2693(94)01695-9

Cite this

Adams, D. L., Achurin, N., Belikov, N. I., Bravar, A., Bystricky, J., Corcoran, M. D., Cossairt, J. D., Cranshaw, J., Derevschikov, A. A., En'yo, H., Funahashi, H., Goto, Y., Grachov, O. A., Grosnick, D. P., Hill, D. A., Iijima, T., Imai, K., Itow, Y., Iwatani, K., ... Zanetti, A. (1995). Measurement of single spin asymmetry for direct photon production in pp collisions at 200 GeV/c. Physics Letters B, 345(4), 569-575. https://doi.org/10.1016/0370-2693(94)01695-9

@article{d8e407c4fa02403c9870bfc505ff8242,

title = "Measurement of single spin asymmetry for direct photon production in pp collisions at 200 GeV/c",

abstract = "The single spin asymmetry for inclusive direct-photon production has been measured using a polarized proton beam of 200 GeV/c with an unpolarized proton target at -0.15 < xf < 0.15 and 2.5 < pt < 3.1 GeV/c at Fermilab. The data on the cross section for pp → γX at 2.5 < pt < 3.8 GeV/c are also provided. The measurement was done using lead-glass calorimeters and photon detectors which surrounded the fiducial area of the calorimeters. Background rejection has been done using these surrounding photon detectors. The cross section obtained is consistent with the results of previous measurements assuming a nuclear dependence of A1.0. The single spin asymmetry, AN, for the direct-photon production is consistent with zero within experimental uncertainty.",

author = "Adams, {D. L.} and N. Achurin and Belikov, {N. I.} and A. Bravar and J. Bystricky and Corcoran, {M. D.} and Cossairt, {J. D.} and J. Cranshaw and Derevschikov, {A. A.} and H. En'yo and H. Funahashi and Y. Goto and Grachov, {O. A.} and Grosnick, {D. P.} and Hill, {D. A.} and T. Iijima and K. Imai and Y. Itow and K. Iwatani and Krueger, {K. W.} and K. Kuroda and F. Lehar and {de Lesquen}, A. and D. Lopiano and Luehring, {F. C.} and T. Maki and S. Makino and A. Masaike and Matulenko, {Yu A.} and Meschanin, {A. P.} and A. Michalowicz and Miller, {D. H.} and K. Miyake and T. Nagamine and F. Nessi-Tedaldi and M. Nessi and C. Nguyen and Nurushev, {S. B.} and Y. Ohashi and Y. Onel and Patalakha, {D. I.} and G. Pauletta and A. Penzo and Read, {A. L.} and Roberts, {J. B.} and {van Rossum}, L. and Rykov, {V. L.} and N. Saito and G. Salvato and P. Schiavon and T. Shima and J. Skeens and Solovyanov, {V. L.} and H. Spinka and R. Takashima and F. Takeutchi and N. Tamura and N. Tanaka and Underwood, {D. G.} and Vasiliev, {A. N.} and A. Villari and White, {J. L.} and S. Yamashita and A. Yokosawa and T. Yoshida and A. Zanetti",

note = "Funding Information: WC gratefully acknowledge the assistance of the staff of Fermilab and of all the participating institutions. This research was supported by the Ministry of Fducation, Science and Culture in Japan, the USSR Ministry of Atomic Power and Industry, the US Department of Energy, the Commissariat a I{\textquoteright}Energie Atomique and the Institut National de Physique Nucltaire et de Physique des Particules in France, and the Instituto di Fisica Nucleare in Italy. One of us (N.S.) was supported by the JSPS Fellowships for Japanese Junior Scientists.",

year = "1995",

month = feb,

day = "23",

doi = "10.1016/0370-2693(94)01695-9",

language = "English",

volume = "345",

pages = "569--575",

journal = "Physics Letters B",

issn = "0370-2693",

number = "4",

}

Adams, DL, Achurin, N, Belikov, NI, Bravar, A, Bystricky, J, Corcoran, MD, Cossairt, JD, Cranshaw, J, Derevschikov, AA, En'yo, H, Funahashi, H, Goto, Y, Grachov, OA, Grosnick, DP, Hill, DA, Iijima, T, Imai, K, Itow, Y, Iwatani, K, Krueger, KW, Kuroda, K, Lehar, F, de Lesquen, A, Lopiano, D, Luehring, FC, Maki, T, Makino, S, Masaike, A, Matulenko, YA, Meschanin, AP, Michalowicz, A, Miller, DH, Miyake, K, Nagamine, T, Nessi-Tedaldi, F, Nessi, M, Nguyen, C, Nurushev, SB, Ohashi, Y, Onel, Y, Patalakha, DI, Pauletta, G, Penzo, A, Read, AL, Roberts, JB, van Rossum, L, Rykov, VL, Saito, N, Salvato, G, Schiavon, P, Shima, T, Skeens, J, Solovyanov, VL, Spinka, H, Takashima, R, Takeutchi, F, Tamura, N, Tanaka, N, Underwood, DG, Vasiliev, AN, Villari, A, White, JL, Yamashita, S, Yokosawa, A, Yoshida, T & Zanetti, A 1995, 'Measurement of single spin asymmetry for direct photon production in pp collisions at 200 GeV/c', Physics Letters B, vol. 345, no. 4, pp. 569-575. https://doi.org/10.1016/0370-2693(94)01695-9

TY - JOUR

T1 - Measurement of single spin asymmetry for direct photon production in pp collisions at 200 GeV/c

AU - Adams, D. L.

AU - Achurin, N.

AU - Belikov, N. I.

AU - Bravar, A.

AU - Bystricky, J.

AU - Corcoran, M. D.

AU - Cossairt, J. D.

AU - Cranshaw, J.

AU - Derevschikov, A. A.

AU - En'yo, H.

AU - Funahashi, H.

AU - Goto, Y.

AU - Grachov, O. A.

AU - Grosnick, D. P.

AU - Hill, D. A.

AU - Iijima, T.

AU - Imai, K.

AU - Itow, Y.

AU - Iwatani, K.

AU - Krueger, K. W.

AU - Kuroda, K.

AU - Lehar, F.

AU - de Lesquen, A.

AU - Lopiano, D.

AU - Luehring, F. C.

AU - Maki, T.

AU - Makino, S.

AU - Masaike, A.

AU - Matulenko, Yu A.

AU - Meschanin, A. P.

AU - Michalowicz, A.

AU - Miller, D. H.

AU - Miyake, K.

AU - Nagamine, T.

AU - Nessi-Tedaldi, F.

AU - Nessi, M.

AU - Nguyen, C.

AU - Nurushev, S. B.

AU - Ohashi, Y.

AU - Onel, Y.

AU - Patalakha, D. I.

AU - Pauletta, G.

AU - Penzo, A.

AU - Read, A. L.

AU - Roberts, J. B.

AU - van Rossum, L.

AU - Rykov, V. L.

AU - Saito, N.

AU - Salvato, G.

AU - Schiavon, P.

AU - Shima, T.

AU - Skeens, J.

AU - Solovyanov, V. L.

AU - Spinka, H.

AU - Takashima, R.

AU - Takeutchi, F.

AU - Tamura, N.

AU - Tanaka, N.

AU - Underwood, D. G.

AU - Vasiliev, A. N.

AU - Villari, A.

AU - White, J. L.

AU - Yamashita, S.

AU - Yokosawa, A.

AU - Yoshida, T.

AU - Zanetti, A.

N1 - Funding Information: WC gratefully acknowledge the assistance of the staff of Fermilab and of all the participating institutions. This research was supported by the Ministry of Fducation, Science and Culture in Japan, the USSR Ministry of Atomic Power and Industry, the US Department of Energy, the Commissariat a I’Energie Atomique and the Institut National de Physique Nucltaire et de Physique des Particules in France, and the Instituto di Fisica Nucleare in Italy. One of us (N.S.) was supported by the JSPS Fellowships for Japanese Junior Scientists.

PY - 1995/2/23

Y1 - 1995/2/23

N2 - The single spin asymmetry for inclusive direct-photon production has been measured using a polarized proton beam of 200 GeV/c with an unpolarized proton target at -0.15 < xf < 0.15 and 2.5 < pt < 3.1 GeV/c at Fermilab. The data on the cross section for pp → γX at 2.5 < pt < 3.8 GeV/c are also provided. The measurement was done using lead-glass calorimeters and photon detectors which surrounded the fiducial area of the calorimeters. Background rejection has been done using these surrounding photon detectors. The cross section obtained is consistent with the results of previous measurements assuming a nuclear dependence of A1.0. The single spin asymmetry, AN, for the direct-photon production is consistent with zero within experimental uncertainty.

AB - The single spin asymmetry for inclusive direct-photon production has been measured using a polarized proton beam of 200 GeV/c with an unpolarized proton target at -0.15 < xf < 0.15 and 2.5 < pt < 3.1 GeV/c at Fermilab. The data on the cross section for pp → γX at 2.5 < pt < 3.8 GeV/c are also provided. The measurement was done using lead-glass calorimeters and photon detectors which surrounded the fiducial area of the calorimeters. Background rejection has been done using these surrounding photon detectors. The cross section obtained is consistent with the results of previous measurements assuming a nuclear dependence of A1.0. The single spin asymmetry, AN, for the direct-photon production is consistent with zero within experimental uncertainty.

UR - http://www.scopus.com/inward/record.url?scp=4243838097&partnerID=8YFLogxK

U2 - 10.1016/0370-2693(94)01695-9

DO - 10.1016/0370-2693(94)01695-9

M3 - Article

AN - SCOPUS:4243838097

SN - 0370-2693

VL - 345

SP - 569

EP - 575

JO - Physics Letters B

JF - Physics Letters B

IS - 4

ER -

Measurement of single spin asymmetry for direct photon production in pp collisions at 200 GeV/c

Abstract

Access to Document

Other files and links

Fingerprint

Cite this