Charm production by muons and its role in scale noninvariance

G. D. Gollin; F. C. Shoemaker; P. Surko; A. R. Clark; K. J. Johnson; L. T. Kerth; S. C. Loken; T. W. Markiewicz; P. D. Meyers; W. H. Smith; M. Strovink; W. A. Wenzel; R. P. Johnson; C. Moore; M. Mugge; R. E. Shafer

doi:10.1103/PhysRevD.24.559

Charm production by muons and its role in scale noninvariance

G. D. Gollin, F. C. Shoemaker, P. Surko, A. R. Clark, K. J. Johnson, L. T. Kerth, S. C. Loken, T. W. Markiewicz, P. D. Meyers, W. H. Smith, M. Strovink, W. A. Wenzel, R. P. Johnson, C. Moore, M. Mugge, R. E. Shafer

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Abstract

Interactions of 209-GeV muons in the multimuon spectrometer at Fermilab have yielded more than 8×104 events with two muons in the final state. After reconstruction and cuts, the data contain 20 072 events with (8110)% attributed to the diffractive production of charmed states decaying to muons. The cross section for diffractive charm muoproduction is 6.9-1.4+1.9 nb where the error includes systematic uncertainties. Extrapolated to Q2=0 with (Q2)=(0)(1+Q22)-2, the effective cross section for 178- (100-) GeV photons is 750-130+180 (560120200) nb and the parameter is 3.30.2 (2.90.2) GeV/c. The dependence of the cross section is similar to that of the photongluon-fusion model. Okubo-Zweig-Iizuka selection rules and unitarity allow the muon data to set a 90%-confidence lower limit on the N total cross section of 0.9 mb. A first determination of the structure function F2(cc») for diffractive charm production indicates that charm accounts for approximately 13 of the scale noninvariance observed in inclusive muon-nucleon scattering at low Bjorken x.

Original language	English (US)
Pages (from-to)	559-589
Number of pages	31
Journal	Physical Review D
Volume	24
Issue number	3
DOIs	https://doi.org/10.1103/PhysRevD.24.559
State	Published - 1981
Externally published	Yes

All Science Journal Classification (ASJC) codes

Nuclear and High Energy Physics

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10.1103/PhysRevD.24.559

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Gollin, G. D., Shoemaker, F. C., Surko, P., Clark, A. R., Johnson, K. J., Kerth, L. T., Loken, S. C., Markiewicz, T. W., Meyers, P. D., Smith, W. H., Strovink, M., Wenzel, W. A., Johnson, R. P., Moore, C., Mugge, M., & Shafer, R. E. (1981). Charm production by muons and its role in scale noninvariance. Physical Review D, 24(3), 559-589. https://doi.org/10.1103/PhysRevD.24.559

@article{5b5bc164c18f4ac4aab8200f18516738,

title = "Charm production by muons and its role in scale noninvariance",

abstract = "Interactions of 209-GeV muons in the multimuon spectrometer at Fermilab have yielded more than 8×104 events with two muons in the final state. After reconstruction and cuts, the data contain 20 072 events with (8110)% attributed to the diffractive production of charmed states decaying to muons. The cross section for diffractive charm muoproduction is 6.9-1.4+1.9 nb where the error includes systematic uncertainties. Extrapolated to Q2=0 with (Q2)=(0)(1+Q22)-2, the effective cross section for 178- (100-) GeV photons is 750-130+180 (560120200) nb and the parameter is 3.30.2 (2.90.2) GeV/c. The dependence of the cross section is similar to that of the photongluon-fusion model. Okubo-Zweig-Iizuka selection rules and unitarity allow the muon data to set a 90%-confidence lower limit on the N total cross section of 0.9 mb. A first determination of the structure function F2(cc») for diffractive charm production indicates that charm accounts for approximately 13 of the scale noninvariance observed in inclusive muon-nucleon scattering at low Bjorken x.",

author = "Gollin, {G. D.} and Shoemaker, {F. C.} and P. Surko and Clark, {A. R.} and Johnson, {K. J.} and Kerth, {L. T.} and Loken, {S. C.} and Markiewicz, {T. W.} and Meyers, {P. D.} and Smith, {W. H.} and M. Strovink and Wenzel, {W. A.} and Johnson, {R. P.} and C. Moore and M. Mugge and Shafer, {R. E.}",

year = "1981",

doi = "10.1103/PhysRevD.24.559",

language = "English (US)",

volume = "24",

pages = "559--589",

journal = "Physical Review D",

issn = "0556-2821",

publisher = "American Physical Society",

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TY - JOUR

T1 - Charm production by muons and its role in scale noninvariance

AU - Gollin, G. D.

AU - Shoemaker, F. C.

AU - Surko, P.

AU - Clark, A. R.

AU - Johnson, K. J.

AU - Kerth, L. T.

AU - Loken, S. C.

AU - Markiewicz, T. W.

AU - Meyers, P. D.

AU - Smith, W. H.

AU - Strovink, M.

AU - Wenzel, W. A.

AU - Johnson, R. P.

AU - Moore, C.

AU - Mugge, M.

AU - Shafer, R. E.

PY - 1981

Y1 - 1981

N2 - Interactions of 209-GeV muons in the multimuon spectrometer at Fermilab have yielded more than 8×104 events with two muons in the final state. After reconstruction and cuts, the data contain 20 072 events with (8110)% attributed to the diffractive production of charmed states decaying to muons. The cross section for diffractive charm muoproduction is 6.9-1.4+1.9 nb where the error includes systematic uncertainties. Extrapolated to Q2=0 with (Q2)=(0)(1+Q22)-2, the effective cross section for 178- (100-) GeV photons is 750-130+180 (560120200) nb and the parameter is 3.30.2 (2.90.2) GeV/c. The dependence of the cross section is similar to that of the photongluon-fusion model. Okubo-Zweig-Iizuka selection rules and unitarity allow the muon data to set a 90%-confidence lower limit on the N total cross section of 0.9 mb. A first determination of the structure function F2(cc») for diffractive charm production indicates that charm accounts for approximately 13 of the scale noninvariance observed in inclusive muon-nucleon scattering at low Bjorken x.

AB - Interactions of 209-GeV muons in the multimuon spectrometer at Fermilab have yielded more than 8×104 events with two muons in the final state. After reconstruction and cuts, the data contain 20 072 events with (8110)% attributed to the diffractive production of charmed states decaying to muons. The cross section for diffractive charm muoproduction is 6.9-1.4+1.9 nb where the error includes systematic uncertainties. Extrapolated to Q2=0 with (Q2)=(0)(1+Q22)-2, the effective cross section for 178- (100-) GeV photons is 750-130+180 (560120200) nb and the parameter is 3.30.2 (2.90.2) GeV/c. The dependence of the cross section is similar to that of the photongluon-fusion model. Okubo-Zweig-Iizuka selection rules and unitarity allow the muon data to set a 90%-confidence lower limit on the N total cross section of 0.9 mb. A first determination of the structure function F2(cc») for diffractive charm production indicates that charm accounts for approximately 13 of the scale noninvariance observed in inclusive muon-nucleon scattering at low Bjorken x.

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ER -

Charm production by muons and its role in scale noninvariance

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