Cross-section measurement of charged-pion photoproduction from hydrogen and deuterium

LY Zhu; J Arrington; T Averett; E Beise; J Calarco; T Chang; JP Chen; E Chudakov; M Coman; B Clasie; C Crawford; S Dieterich; F Dohrmann; D Dutta; Kevin Fissum; S Frullani; H Gao; R Gilman; C Glashausser; J Gomez; K Hafidi; JO Hansen; DW Higinbotham; RJ Holt; CW de Jager; X Jiang; E Kinney; K Kramer; G Kumbartzki; J LeRose; N Liyanage; D Mack; P Markowitz; K McCormick; D Meekins; ZE Meziani; R Michaels; J Mitchell; S Nanda; D Potterveld; R Ransome; PE Reimer; B Reitz; A Saha; EC Schulte; J Seely; S Sirca; S Strauch; V Sulkosky; B Vlahovic; LB Weinstein; K Wijesooriya; CF Williamson; B Wojtsekhowski; H Xiang; F Xiong; W Xu; J Zeng; X Zheng

doi:10.1103/PhysRevLett.91.022003

Cross-section measurement of charged-pion photoproduction from hydrogen and deuterium

LY Zhu, J Arrington, T Averett, E Beise, J Calarco, T Chang, JP Chen, E Chudakov, M Coman, B Clasie, C Crawford, S Dieterich, F Dohrmann, D Dutta, Kevin Fissum, S Frullani, H Gao, R Gilman, C Glashausser, J GomezK Hafidi, JO Hansen, DW Higinbotham, RJ Holt, CW de Jager, X Jiang, E Kinney, K Kramer, G Kumbartzki, J LeRose, N Liyanage, D Mack, P Markowitz, K McCormick, D Meekins, ZE Meziani, R Michaels, J Mitchell, S Nanda, D Potterveld, R Ransome, PE Reimer, B Reitz, A Saha, EC Schulte, J Seely, S Sirca, S Strauch, V Sulkosky, B Vlahovic, LB Weinstein, K Wijesooriya, CF Williamson, B Wojtsekhowski, H Xiang, F Xiong, W Xu, J Zeng, X Zheng

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

Abstract

We have measured the differential cross section for the gamman-->pi(-)p and gammap-->pi(+)n reactions at theta(c.m.)=90degrees in the photon energy range from 1.1 to 5.5 GeV at Jefferson Lab (JLab). The data at E(gamma)greater than or similar to3.3 GeV exhibit a global scaling behavior for both pi(-) and pi(+) photoproduction, consistent with the constituent counting rule and the existing pi(+) photoproduction data. Possible oscillations around the scaling value are suggested by these new data. The data show enhancement in the scaled cross section at a center-of-mass energy near 2.2 GeV. The cross section ratio of exclusive pi(-) to pi(+) photoproduction at high energy is consistent with the prediction based on one-hard-gluon-exchange diagrams.

Original language	English
Journal	Physical Review Letters
Volume	91
Issue number	2: 022003
DOIs	https://doi.org/10.1103/PhysRevLett.91.022003
Publication status	Published - 2003

Subject classification (UKÄ)

Subatomic Physics

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10.1103/PhysRevLett.91.022003

Production of Mesons with Electromagnetic Beams
Fissum, K. (Researcher)
1988/06/01 → …
Project: Research

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Zhu, LY., Arrington, J., Averett, T., Beise, E., Calarco, J., Chang, T., Chen, JP., Chudakov, E., Coman, M., Clasie, B., Crawford, C., Dieterich, S., Dohrmann, F., Dutta, D., Fissum, K., Frullani, S., Gao, H., Gilman, R., Glashausser, C., ... Zheng, X. (2003). Cross-section measurement of charged-pion photoproduction from hydrogen and deuterium. Physical Review Letters, 91(2: 022003). https://doi.org/10.1103/PhysRevLett.91.022003

@article{c93a92e273504b15a2a655ec846fdc45,

title = "Cross-section measurement of charged-pion photoproduction from hydrogen and deuterium",

abstract = "We have measured the differential cross section for the gamman-->pi(-)p and gammap-->pi(+)n reactions at theta(c.m.)=90degrees in the photon energy range from 1.1 to 5.5 GeV at Jefferson Lab (JLab). The data at E(gamma)greater than or similar to3.3 GeV exhibit a global scaling behavior for both pi(-) and pi(+) photoproduction, consistent with the constituent counting rule and the existing pi(+) photoproduction data. Possible oscillations around the scaling value are suggested by these new data. The data show enhancement in the scaled cross section at a center-of-mass energy near 2.2 GeV. The cross section ratio of exclusive pi(-) to pi(+) photoproduction at high energy is consistent with the prediction based on one-hard-gluon-exchange diagrams.",

author = "LY Zhu and J Arrington and T Averett and E Beise and J Calarco and T Chang and JP Chen and E Chudakov and M Coman and B Clasie and C Crawford and S Dieterich and F Dohrmann and D Dutta and Kevin Fissum and S Frullani and H Gao and R Gilman and C Glashausser and J Gomez and K Hafidi and JO Hansen and DW Higinbotham and RJ Holt and {de Jager}, CW and X Jiang and E Kinney and K Kramer and G Kumbartzki and J LeRose and N Liyanage and D Mack and P Markowitz and K McCormick and D Meekins and ZE Meziani and R Michaels and J Mitchell and S Nanda and D Potterveld and R Ransome and PE Reimer and B Reitz and A Saha and EC Schulte and J Seely and S Sirca and S Strauch and V Sulkosky and B Vlahovic and LB Weinstein and K Wijesooriya and CF Williamson and B Wojtsekhowski and H Xiang and F Xiong and W Xu and J Zeng and X Zheng",

year = "2003",

doi = "10.1103/PhysRevLett.91.022003",

language = "English",

volume = "91",

journal = "Physical Review Letters",

issn = "1079-7114",

publisher = "American Physical Society",

number = "2: 022003",

}

Zhu, LY, Arrington, J, Averett, T, Beise, E, Calarco, J, Chang, T, Chen, JP, Chudakov, E, Coman, M, Clasie, B, Crawford, C, Dieterich, S, Dohrmann, F, Dutta, D, Fissum, K, Frullani, S, Gao, H, Gilman, R, Glashausser, C, Gomez, J, Hafidi, K, Hansen, JO, Higinbotham, DW, Holt, RJ, de Jager, CW, Jiang, X, Kinney, E, Kramer, K, Kumbartzki, G, LeRose, J, Liyanage, N, Mack, D, Markowitz, P, McCormick, K, Meekins, D, Meziani, ZE, Michaels, R, Mitchell, J, Nanda, S, Potterveld, D, Ransome, R, Reimer, PE, Reitz, B, Saha, A, Schulte, EC, Seely, J, Sirca, S, Strauch, S, Sulkosky, V, Vlahovic, B, Weinstein, LB, Wijesooriya, K, Williamson, CF, Wojtsekhowski, B, Xiang, H, Xiong, F, Xu, W, Zeng, J & Zheng, X 2003, 'Cross-section measurement of charged-pion photoproduction from hydrogen and deuterium', Physical Review Letters, vol. 91, no. 2: 022003. https://doi.org/10.1103/PhysRevLett.91.022003

TY - JOUR

T1 - Cross-section measurement of charged-pion photoproduction from hydrogen and deuterium

AU - Zhu, LY

AU - Arrington, J

AU - Averett, T

AU - Beise, E

AU - Calarco, J

AU - Chang, T

AU - Chen, JP

AU - Chudakov, E

AU - Coman, M

AU - Clasie, B

AU - Crawford, C

AU - Dieterich, S

AU - Dohrmann, F

AU - Dutta, D

AU - Fissum, Kevin

AU - Frullani, S

AU - Gao, H

AU - Gilman, R

AU - Glashausser, C

AU - Gomez, J

AU - Hafidi, K

AU - Hansen, JO

AU - Higinbotham, DW

AU - Holt, RJ

AU - de Jager, CW

AU - Jiang, X

AU - Kinney, E

AU - Kramer, K

AU - Kumbartzki, G

AU - LeRose, J

AU - Liyanage, N

AU - Mack, D

AU - Markowitz, P

AU - McCormick, K

AU - Meekins, D

AU - Meziani, ZE

AU - Michaels, R

AU - Mitchell, J

AU - Nanda, S

AU - Potterveld, D

AU - Ransome, R

AU - Reimer, PE

AU - Reitz, B

AU - Saha, A

AU - Schulte, EC

AU - Seely, J

AU - Sirca, S

AU - Strauch, S

AU - Sulkosky, V

AU - Vlahovic, B

AU - Weinstein, LB

AU - Wijesooriya, K

AU - Williamson, CF

AU - Wojtsekhowski, B

AU - Xiang, H

AU - Xiong, F

AU - Xu, W

AU - Zeng, J

AU - Zheng, X

PY - 2003

Y1 - 2003

N2 - We have measured the differential cross section for the gamman-->pi(-)p and gammap-->pi(+)n reactions at theta(c.m.)=90degrees in the photon energy range from 1.1 to 5.5 GeV at Jefferson Lab (JLab). The data at E(gamma)greater than or similar to3.3 GeV exhibit a global scaling behavior for both pi(-) and pi(+) photoproduction, consistent with the constituent counting rule and the existing pi(+) photoproduction data. Possible oscillations around the scaling value are suggested by these new data. The data show enhancement in the scaled cross section at a center-of-mass energy near 2.2 GeV. The cross section ratio of exclusive pi(-) to pi(+) photoproduction at high energy is consistent with the prediction based on one-hard-gluon-exchange diagrams.

AB - We have measured the differential cross section for the gamman-->pi(-)p and gammap-->pi(+)n reactions at theta(c.m.)=90degrees in the photon energy range from 1.1 to 5.5 GeV at Jefferson Lab (JLab). The data at E(gamma)greater than or similar to3.3 GeV exhibit a global scaling behavior for both pi(-) and pi(+) photoproduction, consistent with the constituent counting rule and the existing pi(+) photoproduction data. Possible oscillations around the scaling value are suggested by these new data. The data show enhancement in the scaled cross section at a center-of-mass energy near 2.2 GeV. The cross section ratio of exclusive pi(-) to pi(+) photoproduction at high energy is consistent with the prediction based on one-hard-gluon-exchange diagrams.

U2 - 10.1103/PhysRevLett.91.022003

DO - 10.1103/PhysRevLett.91.022003

M3 - Article

SN - 1079-7114

VL - 91

JO - Physical Review Letters

JF - Physical Review Letters

IS - 2: 022003

ER -

Cross-section measurement of charged-pion photoproduction from hydrogen and deuterium

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Production of Mesons with Electromagnetic Beams

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