ALEPH_1996_S3196992

ALEPH_1996_S3196992 =================== Measurement of the quark to photon fragmentation function Status: VALIDATED Spires ID: 3196992 Spires URL: http://www.slac.stanford.edu/spires/find/hep/www?rawcmd=key+3196992 Experiment: ALEPH LEP Run 1 Year of publication: 1996 Authors: Frank Siegert Description: Earlier measurements at LEP of isolated hard photons in hadronic Z decays, attributed to radiation from primary quark pairs, have been extended in the ALEPH experiment to include hard photon production inside hadron jets. Events are selected where all particles combine democratically to form hadron jets, one of which contains a photon with a fractional energy z > 0.7. After statistical subtraction of non-prompt photons, the quark-to-photon fragmentation function, D(z), is extracted directly from the measured 2-jet rate. Run details: e+ e- -> jets with $\pi$ and $\eta$ decays turned off. References: Z.Phys.C69:365-378,1996 doi:10.1007/s002880050037 - http://dx.doi.org/10.1007/s002880050037

ALEPH_1996_S3486095

ALEPH_1996_S3486095 =================== Studies of QCD with the ALEPH detector. Status: VALIDATED Spires ID: 3486095 Spires URL: http://www.slac.stanford.edu/spires/find/hep/www?rawcmd=key+3486095 Experiment: ALEPH LEP 1 Year of publication: 1996 Authors: Holger Schulz Description: Summary paper of QCD results as measured by ALEPH at LEP 1. The publication includes various event shape variables, multiplicities (identified particles and inclusive), and particle spectra. Run details: Hadronic Z decay events generated on the Z pole (sqrt(s) = 91.2 GeV) References: Phys. Rept., 294, 1--165 (1998)

CDF_2000_S4155203

CDF_2000_S4155203 ================= Z pT measurement in CDF Z -> $e^+e^-$ events Status: VALIDATED Spires ID: 4155203 Spires URL: http://www.slac.stanford.edu/spires/find/hep/www?rawcmd=key+4155203 Experiment: CDF Tevatron Run 1 Year of publication: 2000 Authors: Hendrik Hoeth Description: Measurement of transverse momentum and total cross section of $e^+e^-$ pairs in the Z-boson region of $66~\text{GeV}/c^2 < m_{ee} < 116~\text{GeV}/c^2$ from pbar-p collisions at sqrt(s) = 1.8 TeV, with the Tevatron CDF detector. The Z pT, in a fully-factorised picture, is generated by the momentum balance against initial state radiation (ISR) and the primordial/intrinsic pT of the Z's parent partons in the incoming hadrons. The Z pT is important in generator tuning to fix the interplay of ISR and multi-parton interactions (MPI) ingenerating `underlying event' activity. This analysis is subject to ambiguities in the experimental Z pT definition, since the Rivet implementation reconstructs the Z momentum from the dileptonpair with finite cones for photon brem summation, rather than YFS/shower unfolding or non-portable direct use of the Z in the event record. Run details: ppbar collisions at 1800 GeV. $Z/\gamma*$ Drell-Yan events with $e^+e^-$ decay mode only. References: Phys.Rev.Lett.84:845-850,2000 arXiv:hep-ex/0001021 - http://arxiv.org/abs/hep-ex/0001021 doi:10.1103/PhysRevLett.84.845 - http://dx.doi.org/10.1103/PhysRevLett.84.845

CDF_2001_S4751469

CDF_2001_S4751469 ================= Field & Stuart Run I underlying event analysis. Status: VALIDATED Spires ID: 4751469 Spires URL: http://www.slac.stanford.edu/spires/find/hep/www?rawcmd=key+4751469 Experiment: CDF Tevatron Run 1 Year of publication: 2001 Authors: Andy Buckley Description: The original CDF underlying event analysis, based on decomposing each event into a transverse structure with ``toward'', ``away'' and ``transverse'' regions defined relative to the azimuthal direction of the leading jet in the event. Since the toward region is by definition dominated by the hard process, as is the away region by momentum balance in the matrix element, the transverse region is most sensitive to multi- parton interactions. The transverse regions occupy $|\phi| \in [60\degree, 120\degree]$ for $|\eta| < 1$. The pT ranges for the leading jet are divided experimentally into the `min-bias' sample from 0--20 GeV, and the `JET20' sample from 18--49 GeV. Run details: ppbar QCD interactions at 1800 GeV. The leading jet is binned from 0--49 GeV, and histos can usually can be filled with a single generator run without kinematic sub-samples. References: Phys.Rev.D65:092002,2002 FNAL-PUB 01/211-E

CDF_2002_S4796047

CDF_2002_S4796047 ================= CDF Run 1 charged multiplicity measurement Status: VALIDATED Spires ID: 4796047 Spires URL: http://www.slac.stanford.edu/spires/find/hep/www?rawcmd=key+4796047 Experiment: CDF Tevatron Run 1 Year of publication: 2002 Authors: Hendrik Hoeth Description: A study of ppbar collisions at sqrt(s) = 1800 and 630 GeV collected using a minimum bias trigger in which the data set is divided into two classes corresponding to `soft' and `hard' interactions. For each subsample, the analysis includes measurements of the multiplicity, transverse momentum (pT) spectra, and the average pT and event-by- event pT dispersion as a function of multiplicity. A comparison of results shows distinct differences in the behavior of the two samples as a function of the center of mass energy. The properties of the soft sample are invariant as a function of c.m. energy. Run details: QCD events at sqrt(s) = 630 and 1800 GeV. References: Phys.Rev.D65:072005,2002 doi:10.1103/PhysRevD.65.072005 - http://dx.doi.org/10.1103/PhysRevD.65.072005

CDF_2004_S5839831

CDF_2004_S5839831 ================= Transverse cone and 'Swiss cheese' underlying event studies Status: VALIDATED Spires ID: 5839831 Spires URL: http://www.slac.stanford.edu/spires/find/hep/www?rawcmd=key+5839831 Experiment: CDF Tevatron Run 2 Year of publication: 2004 Authors: Andy Buckley Description: This analysis studies the underlying event via transverse cones of $R = 0.7$ at 90 degrees in \phi relative to the leading (highest E) jet, at sqrt(s) = 630 and 1800 GeV. This is similar to the 2001 CDF UE analysis, except that cones, rather than the whole central \eta range are used. The transverse cones are categorised as TransMIN and TransMAX on an event-by- event basis, to give greater sensitivity to the UE component. 'Swiss Cheese' distributions, where cones around the leading $n$ jets are excluded from the distributions, are also included for $n = 2, 3$. This analysis is useful for constraining the energy evolution of the underlying event, since it performs the same analyses at two distinct CoM energies. WARNING! The pT plots are normalised to raw number of events. The min bias data have not been reproduced by MC, and are not recommended for tuning. Run details: QCD events at sqrt(s) = 630 & 1800 GeV. Several pTmin cutoffs are probably required to fill the profile histograms, e.g. 0 (min bias), 30, 90, 150 GeV at 1800 GeV, and 0 (min bias), 20, 90, 150 GeV at 630 GeV. References: Phys. Rev. D70, 072002 (2004) arXiv:hep-ex/0404004 - http://arxiv.org/abs/hep-ex/0404004

CDF_2008_LEADINGJETS

CDF_2008_LEADINGJETS ==================== CDF Run 2 underlying event in leading jet events Status: VALIDATED Spires ID: NONE Spires URL: http://www.slac.stanford.edu/spires/find/hep/www?rawcmd=key+NONE Experiment: CDF Tevatron Run 2 Year of publication: 2008 Authors: Hendrik Hoeth Description: Rick Field's measurement of the underlying event in leading jet events. If the leading jet of the event is within $|\eta| < 2$, the event is accepted and ``toward'', ``away'' and ``transverse'' regions are defined in the same way as in the original (2001) CDF underlying event analysis. The leading jet defines the $\phi$ direction of the toward region. The transverse regions are most sensitive to the underlying event. Run details: ppbar QCD interactions at 1960 GeV. Particles with $c \tau > {}$10 mm should be set stable. Several $p_\perp^\text{min}$ cutoffs are probably required to fill the profile histograms. $p_\perp^\text{min} = {}$ 0 (min bias), 10, 20, 50, 100, 150 GeV. The corresponding merging points are at $p_T = $ 0, 30, 50, 80, 130, 180 GeV

CDF_2008_NOTE_9351

CDF_2008_NOTE_9351 ================== CDF Run 2 underlying event in Drell-Yan Status: VALIDATED Spires ID: NONE Spires URL: http://www.slac.stanford.edu/spires/find/hep/www?rawcmd=key+NONE Experiment: CDF Tevatron Run 2 Year of publication: 2008 Authors: Hendrik Hoeth Description: Deepak Kar and Rick Field's measurement of the underlying event in Drell- Yan events. Z -> ee and Z -> $\mu\mu$ events are selected using a Z mass window cut between 70 and 110 GeV. ``Toward'', ``away'' and ``transverse'' regions are defined in the same way as in the original (2001) CDF underlying event analysis. The reconstructed Z defines the $\phi$ direction of the toward region. The leptons are ignored after the Z has been reconstructed. Thus the region most sensitive to the underlying event is the toward region (the recoil jet is boosted into the away region). Run details: * ppbar collisions at 1960 GeV. * Drell-Yan events with $Z/\gamma* -> e e$ and $Z/\gamma* -> \mu\mu$. * A mass cut $m_{ll} > 70~\text{GeV}$ can be applied on generator level. * Particles with $c \tau > 10~\text{mm}$ should be set stable. References: CDF public note 9351

CDF_2009_S8233977

CDF_2009_S8233977 ================= CDF Run 2 min bias cross-section analysis Status: VALIDATED Spires ID: 8233977 Spires URL: http://www.slac.stanford.edu/spires/find/hep/www?rawcmd=key+8233977 Experiment: CDF Tevatron Run 2 Year of publication: 2009 Authors: Hendrik Hoeth Niccolo' Moggi Description: Niccolo Moggi's min bias analysis. Minimum bias events are used to measure the average track pT vs. charged multiplicity, a track pT distribution and an inclusive $\sum E_T$ distribution. Run details: * ppbar QCD interactions at 1960 GeV. * Particles with $c \tau > {}$10 mm should be set stable. References: Phys.Rev.D79:112005,2009 doi:10.1103/PhysRevD.79.112005 - http://dx.doi.org/10.1103/PhysRevD.79.112005 arXiv:0904.1098 [hep-ex] - http://arxiv.org/abs/0904.1098

D0_2004_S5992206

D0_2004_S5992206 ================ Run II jet azimuthal decorrelation analysis Status: VALIDATED Spires ID: 5992206 Spires URL: http://www.slac.stanford.edu/spires/find/hep/www?rawcmd=key+5992206 Experiment: D0 Tevatron Run 2 Year of publication: 2004 Authors: Lars Sonnenschein Description: Correlations in the azimuthal angle between the two largest pT jets have been measured using the D0 detector in ppbar collisions at 1960 GeV. The analysis is based on an inclusive dijet event sample in the central rapidity region. The correlations are determined for four different pT intervals. Run details: QCD events in ppbar interactions at sqrt(s) = 1960 GeV. References: Phys. Rev. Lett., 94, 221801 (2005) arXiv:hep-ex/0409040 - http://arxiv.org/abs/hep-ex/0409040

DELPHI_1995_S3137023

DELPHI_1995_S3137023 ==================== Strange baryon production in Z hadronic decays at Delphi Status: VALIDATED Spires ID: 3137023 Spires URL: http://www.slac.stanford.edu/spires/find/hep/www?rawcmd=key+3137023 Experiment: DELPHI LEP 1 Year of publication: 1995 Authors: Hendrik Hoeth Description: Measurement of the $\Xi^-$ and $\Sigma^+(1385)/\Sigma^-(1385)$ scaled momentum distributions by DELPHI at LEP 1. The paper also has the production cross-sections of these particles, but that's not implemented in Rivet. Run details: Hadronic Z decay events generated on the Z pole (sqrt(s) = 91.2 GeV) References: Z. Phys. C, 67, 543--554 (1995)

DELPHI_1996_S3430090

DELPHI_1996_S3430090 ==================== Delphi MC tuning on event shapes and identified particles. Status: VALIDATED Spires ID: 3430090 Spires URL: http://www.slac.stanford.edu/spires/find/hep/www?rawcmd=key+3430090 Experiment: DELPHI LEP 1 Year of publication: 1996 Authors: Andy Buckley Hendrik Hoeth Description: Event shape and charged particle inclusive distributions measured using 750000 decays of Z bosons to hadrons from the DELPHI detector at LEP. This data, combined with identified particle distributions from all LEP experiments, was used for tuning of shower-hadronisation event generators by the original PROFESSOR method. This is a critical analysis for MC event generator tuning of final state radiation and both flavour and kinematic aspects of hadronisation models. Run details: sqrt(s) = 91.2 GeV, e+ e- Z production with hadronic decays only References: Z.Phys.C73:11-60,1996 doi:10.1007/s002880050295 - http://dx.doi.org/10.1007/s002880050295

DELPHI_2002_069_CONF_603

DELPHI_2002_069_CONF_603 ======================== Study of the b-quark fragmentation function at LEP 1 Status: VALIDATED Spires ID: Spires URL: http://www.slac.stanford.edu/spires/find/hep/www?rawcmd=key+ Experiment: DELPHI LEP 1 Year of publication: 2002 (note) Authors: Hendrik Hoeth Description: Measurement of the b-quark fragmentation function by DELPHI using 1994 LEP 1 data. The fragmentation function for both weakly decaying and primary b-quarks has been determined in a model independent way. Nevertheless the authors trust $f(x_B^\text{weak})$ more than $f(x_B^\text{prim})$. Run details: Hadronic Z decay events generated on the Z pole (sqrt(s) = 91.2 GeV) References: DELPHI note 2002-069-CONF-603 (ICHEP 2002)

JADE_OPAL_2000_S4300807

JADE_OPAL_2000_S4300807 ======================= Jet rates in e+e- at JADE [35-44 GeV] and OPAL [91 - 189 GeV]. Status: VALIDATED Spires ID: 4300807 Spires URL: http://www.slac.stanford.edu/spires/find/hep/www?rawcmd=key+4300807 Experiment: JADE_OPAL PETRA and LEP Year of publication: 2000 Authors: Frank Siegert Description: Differential and integrated jet rates for Durham and JADE jet algorithms. Run details: e+ e- -> jet jet (+ jets) References: Eur.Phys.J.C17:19-51,2000 arXiv:hep-ex/0001055 - http://arxiv.org/abs/hep-ex/0001055

OPAL_1998_S3780481

OPAL_1998_S3780481 ================== Measurements of flavor dependent fragmentation functions in Z0 --> q anti-q events. Status: VALIDATED Spires ID: 3780481 Spires URL: http://www.slac.stanford.edu/spires/find/hep/www?rawcmd=key+3780481 Experiment: OPAL LEP 1 Year of publication: 1998 Authors: Hendrik Hoeth Description: Measurement of scaled momentum distributions and total charged multiplicities in flavour tagged events at LEP 1. OPAL measured these observables in uds-, c-, and b-events separately. An inclusive measurement is also included. Run details: Hadronic Z decay events generated on the Z pole (sqrt(s) = 91.2 GeV) References: Eur. Phys. J, C7, 369--381 (1999) hep-ex/9807004

OPAL_2004_S6132243

OPAL_2004_S6132243 ================== Event shape distributions and moments in e+ e- -> hadrons at 91-209 GeV Status: VALIDATED Spires ID: 6132243 Spires URL: http://www.slac.stanford.edu/spires/find/hep/www?rawcmd=key+6132243 Experiment: OPAL LEP 1 & 2 Year of publication: 2004 Authors: Andy Buckley Description: Measurement of e+ e- event shape variable distributions and their 1st to 5th moments in LEP running from the Z pole to the highest LEP 2 energy of 209 GeV. Run details: Hadronic e+ e- events at 4 representative energies (91, 133, 177, 197). Runs with sqrt(s) above the Z mass need to have ISR suppressed, since the data has been corrected to remove radiative return to the Z. References: Eur.Phys.J.C40:287-316,2005 hep-ex/0503051

PDG_HADRON_MULTIPLICITIES

PDG_HADRON_MULTIPLICITIES ========================= Hadron multiplicities in hadronic $e^+e^-$ events Status: VALIDATED Spires ID: 7857373 Spires URL: http://www.slac.stanford.edu/spires/find/hep/www?rawcmd=key+7857373 Experiment: PDG Various Year of publication: 2008 Authors: Hendrik Hoeth Description: Hadron multiplicities in hadronic $e^+e^-$ events, taken from Review of Particle Properties 2008, table 40.1, page 355. Average hadron multiplicities per hadronic $e^+e^-$ annihilation event at $\sqrt{s} \approx {}$ 10, 29--35, 91, and 130--200 GeV. The numbers are averages from various experiments. Correlations of the systematic uncertainties were considered for the calculation of the averages. Run details: Hadronic events in $e+e-$ collisions References: Phys. Lett. B, 667, 1 (2008)

PDG_HADRON_MULTIPLICITIES_RATIOS

PDG_HADRON_MULTIPLICITIES_RATIOS ================================ Ratios (w.r.t. $pi^+/pi^-$) of hadron multiplicities in hadronic $e^+e^-$ events Status: VALIDATED Spires ID: 7857373 Spires URL: http://www.slac.stanford.edu/spires/find/hep/www?rawcmd=key+7857373 Experiment: PDG Various Year of publication: 2008 Authors: Holger Schulz Description: Ratios (w.r.t. $pi^+/pi^-$) of hadron multiplicities in hadronic $e^+e^-$ events, taken from Review of Particle Properties 2008, table 40.1, page 355. Average hadron multiplicities per hadronic $e^+e^-$ annihilation event at $\sqrt{s} \approx {}$ 10, 29--35, 91, and 130-- 200 GeV,normalised to the pion multiplicity. The numbers are averages from various experiments. Correlations of the systematic uncertainties were considered for the calculation of the averages. Run details: Hadronic events in $e+e-$ collisions References: Phys. Lett. B, 667, 1 (2008)

STAR_2006_S6500200

STAR_2006_S6500200 ================== Identified hadron spectra in pp at 200 GeV Status: VALIDATED Spires ID: 6500200 Spires URL: http://www.slac.stanford.edu/spires/find/hep/www?rawcmd=key+6500200 Experiment: STAR RHIC pp 200 GeV Year of publication: 2006 Authors: Bedanga Mohanty Hendrik Hoeth Description: pT distributions of charged pions and (anti)protons in pp collisions at $\sqrt{s} = 200$ GeV, measured by the STAR experiment at RHIC in non- single-diffractive minbias events. Run details: pp at 200 GeV References: Phys. Lett. B637, 161 nucl-ex/0601033

STAR_2006_S6870392

STAR_2006_S6870392 ================== Inclusive jet cross-section in pp at 200 GeV Status: VALIDATED Spires ID: 6870392 Spires URL: http://www.slac.stanford.edu/spires/find/hep/www?rawcmd=key+6870392 Experiment: STAR RHIC pp 200 GeV Year of publication: 2006 Authors: Hendrik Hoeth Description: Inclusive jet cross section as a function of pT in pp collisions at $\sqrt{s} = 200$ GeV, measured by the STAR experiment at RHIC. Run details: pp at 200 GeV References: Phys. Rev. Lett. 97, 252001 hep-ex/0608030

STAR_2009_UE_HELEN

STAR_2009_UE_HELEN ================== UE measurement in pp at 200 GeV Status: VALIDATED -- but PRELIMINARY DATA! Spires ID: None Spires URL: http://www.slac.stanford.edu/spires/find/hep/www?rawcmd=key+None Experiment: STAR RHIC pp 200 GeV Year of publication: 2009 Authors: Helen Caines Hendrik Hoeth Description: UE analysis similar to Rick Field's leading jet analysis. SIScone with radius/resolution parameter R=0.7 is used. Particles with $pT > 0.2~\text{GeV}$ and $|\eta| < 1$ are included in the analysis. All particles are assumed to have zero mass. Only jets with neutral energy $< 0.7$ are included. For the transMIN and transMAX $\Delta(\phi)$ is between $\pi/3$ and $2\pi/3$, and $\Delta(\eta) < 2.0$. For the jet region the area of the jet is used for the normalization, i.e. the scaling factor is $\pi R^2$ and not $\mathrm{d}\phi\mathrm{d}\eta$ (this is different from what Rick Field does!). The tracking efficiency is $\sim 0.8$, but that is an approximation, as below $pT \sim 0.6~\text{GeV}$ it is falling quite steeply. Run details: pp at 200 GeV References: arXiv:0910.5203 - http://arxiv.org/abs/0910.5203 arXiv:0907.3460 - http://arxiv.org/abs/0907.3460 WARNING! Mark as "STAR preliminary" and contact authors when using it!