Ratio of J / psi production cross-sections in deep inelastic muon scattering from tin and carbon - INSPIRE

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Ratio of J / psi production cross-sections in deep inelastic muon scattering from tin and carbon

New Muon

Collaboration

•

P. Amaudruz
(
- PSI, Villigen
)

Nov, 1991

14 pages

Published in:

Nucl.Phys.B 371 (1992) 553-566

Published: 1992

DOI:

10.1016/0550-3213(92)90686-6

Report number:

CERN-PPE-91-198

Experiments:

CERN-NA-037,
CERN-NMC

View in:

CERN Document Server

reference search87 citations

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Abstract: (Elsevier)

We present results on J/ψ production in muon interactions with tin and carbon targets at incident muon energies of 200 and 280 GeV. The ratio of cross sections per nucleon for J/ψ production on tin and carbon, R (Sn/C), is studied as a function of p T 2 , z and x . We find an enhancement for coherent J/ψ production R coh (Sn/C) = 1.54 ± 0.07, a suppression for quasielastic production R qe (Sn/C) = 0.79 ± 0.06 and for inelastic production R in (Sn/C) = 1.13 ± 0.08. The inelastic cross section ratio can be interpreted within the Colour Singlet model as an enhancement of the gluon distribution in tin with respect to that in carbon. The dependence of the ratio on z and p T 2 can explain the discrepancy between the results obtained in previous experiments.

muon nucleus: inclusive reaction
muon nucleus: coherent interaction
coherent interaction: muon nucleus
muon nucleus: deep inelastic scattering
deep inelastic scattering: muon nucleus
carbon
tin
channel cross section: ratio
energy dependence
transverse momentum dependence

References(24)

Figures(0)

The ratio of the nucleon structure functions $F2_n$ for iron and deuterium

European Muon

Collaboration

•

J.J. Aubert
(
- Marseille, CPT
)

et al.

- Phys.Lett.B 123 (1983) 275-278
•
DOI:
- 10.1016/0370-2693(83)90437-9

Measurements of the a-Dependence of Deep Inelastic electron Scattering from Nuclei

et al.

- Phys.Rev.Lett. 52 (1984) 727,
- Phys. Rev. Lett. 52 (1984) 727-730 and SLAC Stanford - SLAC-PUB-3257 (83,REC.JAN.84) 15p
•
DOI:
- 10.1103/PhysRevLett.52.727

A Measurement of Nuclear Effects in Deep Inelastic Muon Scattering on Deuterium, Nitrogen and Iron Targets

BCDMS

Collaboration

•

G. Bari
(
- Bologna U. and
- INFN, Bologna
)

et al.

- Phys.Lett.B 163 (1985) 282,
- San Miniato Topical Sem.1985:265
•
DOI:
- 10.1016/0370-2693(85)90238-2

Nuclear Effects in Deep Inelastic Muon Scattering on Deuterium and Iron Targets

BCDMS

Collaboration

•

A.C. Benvenuti
(
- Bologna U. and
- INFN, Bologna
)

et al.

- Phys.Lett.B 189 (1987) 483-487
•
DOI:
- 10.1016/0370-2693(87)90664-2

Measurement of the Ratios of Deep Inelastic Muon - Nucleus Cross-Sections on Various Nuclei Compared to Deuterium

European Muon

Collaboration

•

J. Ashman
(
- Sheffield U.
)

et al.

- Phys.Lett.B 202 (1988) 603-610
•
DOI:
- 10.1016/0370-2693(88)91872-2

Measurements of the nucleon structure function in the range $0.002-{\rm GeV}^2 < x < 0.17-{\rm GeV}^2$ and $0.2-GeV^2 < q^2 < 8-GeV^2$ in deuterium, carbon and calcium

European Muon

Collaboration

•

M. Arneodo
(
- Turin U.
)

et al.

- Nucl.Phys.B 333 (1990) 1-47
•
DOI:
- 10.1016/0550-3213(90)90221-X

Precision measurement of the structure function ratios F2 (He) / F2 (D), F2 (C) / F2 (D) and F2 (Ca) / F2 (D)

New Muon

Collaboration

•

P. Amaudruz
(
- PSI, Villigen
)

et al.

- Z.Phys.C 51 (1991) 387-394,
- Z. Phys. C51 (1991) 387-393 and CERN Geneva - CERN-PPE-91-052 (91/03,rec.May) 18 p
•
DOI:
- 10.1007/BF01548560

The Quark Structure of the Nucleon from the CERN Muon Experiments

T. Sloan
(
- Lancaster U. and
- CERN and
- Munich U.
)
,
R. Voss
(
- Lancaster U. and
- CERN and
- Munich U.
)
,
G. Smadja
(
- Saclay
)

- Phys.Rept. 162 (1988) 45-167
•
DOI:
- 10.1016/0370-1573(88)90064-6

Hard Nuclear Processes and Microscopic Nuclear Structure

- Phys.Rept. 160 (1988) 235-427
•
DOI:
- 10.1016/0370-1573(88)90179-2

Inelastic Photoproduction of J/psi and Upsilon by Gluons

Edmond L. Berger
(
- Argonne
)
,
Daniel L. Jones
(
- Argonne
)

- Phys.Rev.D 23 (1981) 1521-1530
•
DOI:
- 10.1103/PhysRevD.23.1521

Inelastic J / psi production in deep inelastic scattering from hydrogen and deuterium and the gluon distribution of free nucleons

New Muon (NMC)

Collaboration

•

D. Allasia
(
- INFN, Turin and
- Turin U.
)

et al.

- Phys.Lett.B 258 (1991) 493-498
•
DOI:
- 10.1016/0370-2693(91)91124-E

Measurement of $J/\psi$ and $\psi^\prime$ Real Photoproduction on $^{6}$ Li at a Mean Energy of 90-{GeV}

NA14

Collaboration

•

R. Barate
(
- CERN
)

et al.

- Z.Phys.C 33 (1987) 505,
- Bari Europhys.High Energy 1985:271
•
DOI:
- 10.1007/BF01548261

The Hadronic Properties of the Photon in High-Energy Interactions

- Rev.Mod.Phys. 50 (1978) 261,
- Rev.Mod.Phys. 51 (1979) 2, 407 (erratum)
•
DOI:
- 10.1103/RevModPhys.50.261

Photoproduction of Vector Mesons

E. Paul
(
- Bonn U.
)

- Nucl.Phys.A 446 (1985) 203C-218C,
- Paris EPS Nucl.Conf.1985:0203
•
DOI:
- 10.1016/0375-9474(85)90589-5

Electron scattering and nuclear structure

- Adv.Phys. 15 (1966) 1-109
•
DOI:
- 10.1080/00018736600101254

Model-independent nuclear charge densities from elastic electron scattering

I. Sick

- Nucl.Phys.A 218 (1974) 509-541
•
DOI:
- 10.1016/0375-9474(74)90039-6

PRECISE NUCLEAR RADII FROM ELECTRON SCATTERING

I. Sick
(
- Basel U.
)

- Phys.Lett.B 116 (1982) 212-214
•
DOI:
- 10.1016/0370-2693(82)90327-6

Inelastic Leptoproduction of $J/\psi$ as a Probe of the Small X Behavior of the Gluon Structure Function

- Phys.Lett.B 191 (1987) 200
•
DOI:
- 10.1016/0370-2693(87)91347-5

{QCD} Parton Recombination and Applications to Nuclear Structure Functions

Frank E. Close
(
- Oak Ridge and
- Tennessee U.
)
,
Jian-wei Qiu
(
- Argonne
)
,
R.G. Roberts
(
- Rutherford
)

- Phys.Rev.D 40 (1989) 2820
•
DOI:
- 10.1103/PhysRevD.40.2820

Evidence for enhancement of gluon and valence quark distributions in nuclei from hard lepton nucleus processes

L.L. Frankfurt
(
- St. Petersburg, INP
)
,
M.I. Strikman
(
- St. Petersburg, INP
)
,
S. Liuti

- Phys.Rev.Lett. 65 (1990) 1725-1728
•
DOI:
- 10.1103/PhysRevLett.65.1725

A Measurement of the a-Dependence of psi Photoproduction

et al.

- Phys.Rev.Lett. 38 (1977) 263
•
DOI:
- 10.1103/PhysRevLett.38.263

An Experimental Study of the a-Dependence of $J/\psi$ Photoproduction

Fermilab Tagged Photon Spectrometer

Collaboration

•

M.D. Sokoloff

et al.

- Phys.Rev.Lett. 57 (1986) 3003,
- Phys. Rev. Lett. 57 ( 1986) 3003-3006
•
DOI:
- 10.1103/PhysRevLett.57.3003

A measurement of the difference between the single nucleon cross-sections for $J/\psi$ muoproduction in iron and in h-2, d-2 targets

European Muon

Collaboration

•

J.J. Aubert
(
- Marseille, CPT
)

et al.

- Phys.Lett.B 152 (1985) 433-438
•
DOI:
- 10.1016/0370-2693(85)90523-4

Production of charmonium in 250-GeV $\mu^+$ - iron interactions

European Muon

Collaboration

•

J.J. Aubert
(
- Unlisted, FR
)

et al.

- Nucl.Phys.B 213 (1983) 1-30
•
DOI:
- 10.1016/0550-3213(83)90173-6