Measurement of beauty production at HERA using events with muons and jets

A measurement of the beauty production cross section in ep collisions at a centre-of-mass energy of 319 GeV is presented. The data were collected with the H1 detector at the HERA collider in the years 1999-2000. Events are selected by requiring the presence of jets and muons in the final state. Both the long lifetime and the large mass of b-flavoured hadrons are exploited to identify events containing beauty quarks. Differential cross sections are measured in photoproduction, with photon virtualities Q^2 < 1 GeV^2, and in deep inelastic scattering, where 2 < Q^2 < 100 GeV^2. The results are compared with perturbative QCD calculations to leading and next-to-leading order. The predictions are found to be somewhat lower than the data.

Note:

33 pages, 11 figures, 6 tables Report-no: DESY 05-004

positron p: colliding beams
positron p: deep inelastic scattering
bottom: pair production
bottom: electroproduction
bottom: photoproduction
bottom: semileptonic decay
final state: (jet muon)
final state: (2jet muon)
differential cross section: transverse momentum
rapidity dependence

References(56)

Figures(31)

Measurement of open beauty production at HERA

H1

Collaboration

•

C. Adloff

et al.

- Phys.Lett.B 467 (1999) 156-164,
- Phys.Lett.B 518 (2001) 331-332 (erratum)
•
e-Print:
- hep-ex/9909029
•
DOI:
- 10.1016/S0370-2693(99)01099-0

Measurement of open beauty production in photoproduction at HERA

ZEUS

Collaboration

•

J. Breitweg
(
- Argonne
)

et al.

- Eur.Phys.J.C 18 (2001) 625-637
•
e-Print:
- hep-ex/0011081
•
DOI:
- 10.1007/s100520100571

Measurement of bottom quark production in 1.8 TeV $p\bar{p}$ collisions using semileptonic decay muons

CDF

Collaboration

•

F. Abe

et al.

- Phys.Rev.Lett. 71 (1993) 2396-2400
•
DOI:
- 10.1103/PhysRevLett.71.2396

Measurement of correlated $\mu - \bar{b}$ jet cross-sections in $p\bar{p}$ collisions at $\sqrt{s} = 1.8$ TeV

CDF

Collaboration

•

F. Abe

et al.

- Phys.Rev.D 53 (1996) 1051-1065
•
e-Print:
- hep-ex/9508017
•
DOI:
- 10.1103/PhysRevD.53.1051

Inclusive $\mu$ and $B$ quark production cross-sections in $p\bar{p}$ collisions at $\sqrt{s} = 1.8$ TeV

D0

Collaboration

•

S. Abachi

et al.

- Phys.Rev.Lett. 74 (1995) 3548-3552
•
DOI:
- 10.1103/PhysRevLett.74.3548

$J/\psi$ production in $p \bar{p}$ collisions at $\sqrt{s}$ = 1.8-TeV

D0

Collaboration

•

S. Abachi

et al.

- Phys.Lett.B 370 (1996) 239-248
•
DOI:
- 10.1016/0370-2693(96)00067-6

Measurements of the cross-sections for open charm and beauty production in $\gamma \gamma$ collisions at $\sqrt{s}$ = 189-GeV to 202-GeV

L3

Collaboration

•

M. Acciarri

et al.

- Phys.Lett.B 503 (2001) 10-20
•
e-Print:
- hep-ex/0011070
•
DOI:
- 10.1016/S0370-2693(01)00134-4

Measurement of F2( $c \bar{c}$ ) and F2( $b \bar{b}$ ) at high $Q^{2}$ using the H1 vertex detector at HERA

H1

Collaboration

•

A. Aktas

et al.

- Eur.Phys.J.C 40 (2005) 349-359
•
e-Print:
- hep-ex/0411046
•
DOI:
- 10.1140/epjc/s2005-02154-8

Beauty photoproduction measured using decays into muons in dijet events in e p collisions at s**(1/2) = 318-GeV

ZEUS

Collaboration

•

S. Chekanov
(
- Argonne
)

et al.

- Phys.Rev.D 70 (2004) 012008,
- Phys.Rev.D 74 (2006) 059906 (erratum)
•
e-Print:
- hep-ex/0312057
•
DOI:
- 10.1103/PhysRevD.70.012008

Measurement of beauty production in deep inelastic scattering at HERA

ZEUS

Collaboration

•

S. Chekanov
(
- Argonne
)

et al.

- Phys.Lett.B 599 (2004) 173-189
•
e-Print:
- hep-ex/0405069
•
DOI:
- 10.1016/j.physletb.2004.08.048

The H1 silicon vertex detector

et al.

- Nucl.Instrum.Meth.A 454 (2000) 334-349
•
e-Print:
- hep-ex/0002044
•
DOI:
- 10.1016/S0168-9002(00)00488-5

Differential distributions for heavy flavor production at HERA

- Nucl.Phys.B 454 (1995) 3-24
•
e-Print:
- hep-ph/9506226
•
DOI:
- 10.1016/0550-3213(95)00445-X

Heavy quark correlations in deep inelastic electroproduction

B.W. Harris
(
- SUNY, Stony Brook
)
,
J. Smith
(
- SUNY, Stony Brook
)

- Nucl.Phys.B 452 (1995) 109-160
•
e-Print:
- hep-ph/9503484
•
DOI:
- 10.1016/0550-3213(95)00256-R

Cross-sections for charm production in e p collisions: Massive versus massless scheme

- Phys.Lett.B 356 (1995) 539-545
•
e-Print:
- hep-ph/9505410
•
DOI:
- 10.1016/0370-2693(95)00854-E

Large p(T) photoproduction of D*+- mesons in e p collisions

Bernd A. Kniehl
(
- Munich, Max Planck Inst.
)
,
G. Kramer
(
- Hamburg U.
)
,
M. Spira
(
- CERN
)

- Z.Phys.C 76 (1997) 689-700
•
e-Print:
- hep-ph/9610267
•
DOI:
- 10.1007/s002880050591

Coherent description of D*+- production in e+ e- and low Q**2 e p collisions

J. Binnewies
(
- Hamburg U.
)
,
Bernd A. Kniehl
(
- Munich, Max Planck Inst.
)
,
G. Kramer
(
- Hamburg U.
)

- Z.Phys.C 76 (1997) 677-688
•
e-Print:
- hep-ph/9702408
•
DOI:
- 10.1007/s002880050590

Predictions for D*+- - photoproduction at HERA with new fragmentation functions from LEP-1

J. Binnewies
(
- Hamburg U.
)
,
Bernd A. Kniehl
(
- Munich, Max Planck Inst.
)
,
G. Kramer
(
- Hamburg U.
)

- Phys.Rev.D 58 (1998) 014014
•
e-Print:
- hep-ph/9712482
•
DOI:
- 10.1103/PhysRevD.58.014014

D* production from e+ e- to e p collisions in NLO QCD

Matteo Cacciari
(
- DESY
)
,
Mario Greco
(
- Rome III U. and
- Frascati
)

- Phys.Rev.D 55 (1997) 7134-7143
•
e-Print:
- hep-ph/9702389
•
DOI:
- 10.1103/PhysRevD.55.7134

The Lund Monte Carlo for Jet Fragmentation and e+ e- Physics: Jetset Version 6.2

Torbjorn Sjostrand
(
- Lund U., Dept. Theor. Phys.
)

- Comput.Phys.Commun. 39 (1986) 347-407
•
DOI:
- 10.1016/0010-4655(86)90096-2

The Lund Monte Carlo for Jet Fragmentation and e+ e- Physics. Jetset Version 6.3: An Update

- Comput.Phys.Commun. 43 (1987) 367
•
DOI:
- 10.1016/0010-4655(87)90054-3

High-energy physics event generation with PYTHIA 5.7 and JETSET 7.4

Torbjorn Sjostrand
(
- CERN
)

- Comput.Phys.Commun. 82 (1994) 74-90,
- CERN Geneva - TH. 7111 (93/12,rec.Jan.94) 17 p. and e: CERN th-7111-93
•
DOI:
- 10.1016/0010-4655(94)90132-5

High-energy physics event generation with PYTHIA 6.1

et al.

- Comput.Phys.Commun. 135 (2001) 238-259
•
e-Print:
- hep-ph/0010017
•
DOI:
- 10.1016/S0010-4655(00)00236-8

The CCFM Monte Carlo generator CASCADE

H. Jung
(
- Lund U.
)

- Comput.Phys.Commun. 143 (2002) 100-111
•
e-Print:
- hep-ph/0109102
•
DOI:
- 10.1016/S0010-4655(01)00438-6

Hard diffractive scattering in high-energy e p collisions and the Monte Carlo generator RAPGAP

Hannes Jung
(
- DESY
)

- Comput.Phys.Commun. 86 (1995) 147-161
•
DOI:
- 10.1016/0010-4655(94)00150-Z

Hadronic final state predictions from CCFM: The Hadron level Monte Carlo generator CASCADE

H. Jung
(
- Lund U.
)
,
G.P. Salam
(
- CERN and
- Paris U., VI-VII
)

- Eur.Phys.J.C 19 (2001) 351-360
•
e-Print:
- hep-ph/0012143
•
DOI:
- 10.1007/s100520100604

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