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 | |
| State | Published - Jan 1 1981 |
| Externally published | Yes |
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ASJC Scopus subject areas
- Nuclear and High Energy Physics
- Physics and Astronomy (miscellaneous)
Cite this
Charm production by muons and its role in scale noninvariance. / 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.
In: Physical Review D, Vol. 24, No. 3, 01.01.1981, p. 559-589.Research output: Contribution to journal › Article
}
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 - 1981/1/1
Y1 - 1981/1/1
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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U2 - 10.1103/PhysRevD.24.559
DO - 10.1103/PhysRevD.24.559
M3 - Article
AN - SCOPUS:35949016357
VL - 24
SP - 559
EP - 589
JO - Physical Review D - Particles, Fields, Gravitation and Cosmology
JF - Physical Review D - Particles, Fields, Gravitation and Cosmology
SN - 1550-7998
IS - 3
ER -