Spires | Phys.Lett.B693:69-80,2010 | arXiv:1008.3105[hep-ex]
Differential cross-section measurement of prompt $K^0_S$ production in pp collisions at $\sqrt{s}=\unit{0.9}{\TeV}$ in the rapidity windows $2.5 Spires | JHEP 05 (2011) 064 | doi:10.1007/JHEP05(2011)064 | arXiv:1102.4282 [hep-ex] The spectra of Kshort, Lambda, and Cascade- particles were measured versus transverse-momentum (pT) and rapidity(y) in proton-proton collisions at center-of-mass energies 900 and 7000 GeV. The production is normalized to all non-single-diffractive (NSD) events using corrections for trigger and selection efficiency, acceptance, and branching ratios. The results cover a rapidity range of |y|<2 and a pT range from 0 to 10 GeV (Kshort and Lambda) and 0 to 6 GeV (Cascade-). Antiparticles are included in all measurements so only the sum of Lambda and Lambdabar and Cascade- and anti-Cascade- are given. The rapidity distributions are shown versus |y| but normalized to a unit of y. Ratios of Lambda/Kshort and Cascade-/Lambda production versus pT and |y| are also given, with somewhat smaller systematic uncertainties than obtained from taking the ratio of the individual distributions.'
The data were corrected according to the SD/DD/ND content of the CMS trigger, as predicted by pythia6. The uncertainties connected with correct or uncorrect modelling of diffraction were included in the systematic errors. Spires | Phys.Rev.Lett.106:201804,2011 | doi:10.1103/PhysRevLett.106.201804 | arXiv:hep-ex/1102.2020 Measurement of dijet angular distributions in proton-proton collisions at a center-of-mass energy of 7 TeV. The data sample, collected with single jet triggers, has a total integrated luminosity of 36 pb-1, with jets being reconstructed using the anti-KT clustering algorithm using R=0.5. The data are presented for the variable CHI defined as EXP(|Y1-Y2|) where Y1 and Y2 are the rapidities of the two leading (highest PT) jets.' Spires | Phys.Lett.B699:48-67,2011 | arXiv:1102.0068 Central transverse Thrust and Minor have been measured in proton-proton collisions at sqrt(s)=7 TeV, with a data sample collected with the CMS detector at the LHC. The sample corresponds to an integrated luminosity of 3.2 inverse picobarns. Spires | J. High Energy Phys. 01 (2011) 079 | doi:10.1007/JHEP01(2011)079 | arXiv:1011.5531 [hep-ex] Measurements of primary charged hadron multiplicity distributions are presented for non-single-diffractive events in proton-proton collisions at centre-of-mass energies of sqrt(s) = 0.9, 2.36, and 7 TeV, in five pseudorapidity ranges from |eta|<0.5 to |eta|<2.4. The data were collected with the minimum-bias trigger of the CMS experiment during the LHC commissioning runs in 2009 and the 7 TeV run in 2010. The average transverse momentum as a function of the multiplicity is also presented. The measurement of higher-order moments of the multiplicity distribution confirms the violation of Koba-Nielsen-Olesen scaling that has been observed at lower energies. Spires | Phys.Rev.Lett.105:022002,2010 | doi:10.1103/PhysRevLett.105.022002 | arXiv:1005.3299 [hep-ex] Charged particle spectra are measured in proton-proton collisions at center-of-mass energies 7000 GeV. The spectra are normalized to all non-single-diffractive (NSD) events using corrections for trigger and selection efficiency, acceptance, and branching ratios. There are transverse-momentum (pT) spectra from 0.1 to 2 GeV in bins of pseudorapidity (eta) and the pT spectrum from 0.1 to 6 GeV for |eta|<2.4. The eta spectra come from the average of three methods and cover |eta|<2.5 and are corrected to include all pT.
The data were corrected according to the SD/DD/ND content of the CMS trigger, as predicted by pythia6. The uncertainties connected with correct or uncorrect modelling of diffraction were included in the systematic errors. Spires | JHEP 02 (2010) 041 | doi:10.1007/JHEP02(2010)041 | arXiv:1002.0621 [hep-ex] Charged particle spectra are measured in proton-proton collisions at center-of-mass energies 900 and 2360 GeV. The spectra are normalized to all non-single-diffractive (NSD) events using corrections for trigger and selection efficiency, acceptance, and branching ratios. There are transverse-momentum (pT) spectra from 0.1 to 2 GeV in bins of pseudorapidity (eta) and pT spectra from 0.1 to 4 GeV for |eta|<2.4. The eta spectra come from the average of three methods and cover |eta|<2.5 and are corrected to include all pT.
The data were corrected according to the SD/DD/ND content of the CMS trigger, as predicted by pythia6. The uncertainties connected with correct or uncorrect modelling of diffraction were included in the systematic errors. Spires | arXiv:1107.2092 Inclusive multi-jet production is studied using an integrated luminosity of 2.4 pb-1. Results on multi-jet cross sections are presented differential in pT of the four leading jets, HT. Additionally three-to-two jet fractions are presented differential in different observables. Spires | arXiv:1107.1641 [hep-ex] A measurement of the jet activity in rapidity intervals bounded by a dijet system. The fraction of events passing a veto requirement are shown as a function of both the rapidity interval size and the average transverse momentum of the dijet system. The average number of jets above the veto threshold are also shown as a function of the same variables. There are two possible selection criteria applied to data. Either the two highest transverse momentum jets or the jets most forward and backward in rapidity are taken to define the dijet system, where the veto threhsold is 20GeV. Additionally for the latter selection an alternative veto transverse momentum threshold which is equal to the average transverse momentum is applied. Spires | arXiv:1103.1816 Underlying event measurements with the ATLAS detector at the LHC at center-of-mass energies of 900 GeV and 7 TeV, using calorimeter clusters rather than charged tracks. Spires | arXiv:1102.2696 Dijet azimuthal decorrelation measured by ATLAS at 7 TeV. Jets are anti- kt with $R=0.6$, $p_\perp>100$ GeV, $|\eta|<0.8$. The analysis is binned in leading jet $p_\perp$ bins. All data is fully corrected. Spires | arXiv:1101.0070 Measurement of jet shapes in inclusive jet production in pp collisions at 7 TeV based on 3pb$^-1$ of data. Jets are reconstructed in $|\eta| < 5$ using the anti-$k_\perp$ algorithm with $30 < pT < 600$ GeV and $|y| < 2.8$. NONE Spires | arXiv:1012.5104 Measurements from proton-proton collisions at centre-of-mass energies of sqrt(s) = 0.9, 2.36, and 7 TeV recorded with the ATLAS detector at the LHC. Events were collected using a single-arm minimum-bias trigger. The charged-particle multiplicity, its dependence on transverse momentum and pseudorapidity and the relationship between the mean transverse momentum and charged-particle multiplicity are measured. Measurements in different regions of phase-space are shown, providing diffraction-reduced measurements as well as more inclusive ones. The observed distributions are corrected to well-defined phase-space regions, using model-independent corrections. Spires | arXiv:1012.0791 The underlying event measurements with the ATLAS detector at the LHC at the center of mass energies of 900 GeV and 7 TeV. The observables sensitive to the underlying event, i.e the charged particle density and charged pT sum, as well as their standard deviations and the average pT, are measured as functions of the leading track. A track pT cut of 500 MeV is applied for most observables, but the main profile plots are also shown for a lower track cut of 100 MeV, which includes much more of the soft cross-section. The angular distribution of the charged tracks with respect to the leading track is also studied, as are the correlation between mean transverse momentum and charged particle multiplicity, and the `plateau' height as a function of the leading track $|\eta|$. Spires | arXiv:1009.5908 The first jet cross section measurement made with the ATLAS detector at the LHC. Jets are resconstructed within $|y|<2.8$ and above 60~GeV for the inclusive jet cross section plots. For the di-jet plots the second jet must have pT>30~GeV. Jet pT and di-jet mass spectra are plotted in bins or rapidity $|y|<0.3$, $0.3<|y|<0.8$, $0.8<|y|<1.2$, $1.2<|y|<2.1$, $2.1<|y|<2.8$. Di-jet $\chi$ spectra are plotted in bins of di-jet mass $340~GeV Spires | arXiv:1003.3124 The first measurements with the ATLAS detector at the LHC. Data were collected using a minimum-bias trigger in December 2009 during proton-proton collisions at a centre of mass energy of 900 GeV. The charged- particle density, its dependence on transverse momentum and pseudorapid- ity, and the relationship between transverse momentum and charged-particle multiplicity are measured for events with at least one charged particle in the kinematic range $|\eta| < 2.5$ and $p_\perp > 500$ MeV. All data is corrected to the particle level. Spires | ATLAS-CONF-2010-049 Jets are identified and their properties studied using tracks measured by the ATLAS Inner Detector. Events are selected using a minimum-bias trigger, allowing the emergence of jets at low transverse momentum to be observed and for jets to be studied independently of the calorimeter. Jets are reconstructed using the anti-kt algorithm applied to tracks with two parameter choices, 0.4 and 0.6. An inclusive jet transverse momentum cross section measurement from 4 GeV to 80 GeV is shown, integrated over $|\eta| < 0.57$ and corrected to charged particle-level truth jets. The probability that a particular particle carries a fixed fraction of the jet momentum (fragmentation function) is also measured. All data is corrected to the particle level. ATTENTION - Data read from plots! Spires | Eur.Phys.J.C71:1655,2011. Obtaining the tranverse momentum spectra of pions, kaons and protons in pp collisions at $sqrt(s) = 0.9 TeV$ with ALICE at the LHC. Mean transverse momentum as a function of the mass of the emitted particle also included. Spires | Phys.Lett.B693:53-68,2010 | arXiv:1007.0719 [hep-ex] ALICE measurement of $\langle p_\perp \rangle$ vs. $N_\text{ch}$ and invariant particle yield (as function of $p_\perp$) in proton-proton collisions at $\sqrt{s}=\unit{900}{\GeV}$. Spires | Eur.Phys.J. C68 (2010) 345-354 | arXiv:1004.3514 [hep-ex] This is an ALICE publication with pseudorapities for $\unit{0.9, 2.36 and 7}{\TeV}$ and the charged multiplicity at $\unit{7}{\TeV}$. The analysis requires at least on charged particle in the event. Only the INEL distributions are considered here Spires | Eur.Phys.J.C68:89-108,2010 | arXiv:1004.3034 [hep-ex] This is an ALICE analysis where charged particle multiplicities (including the zero bin) have been measured in three different pseudorapidity intervals ($|\eta|<0.5; |\eta|<1.0; |\eta|<1.3$. Only the INEL distributions have been considered here. The data were taken at 900 and 2360 GeV. Generated at Sunday, 11. September 2011 06:28PMKshort, Lambda, and Cascade- transverse momentum and rapidity spectra from proton-proton collisions at 900 and 7000 GeV. (CMS_2011_S8978280)
Measurement of Dijet Angular Distributions and Search for Quark Compositeness in pp Collisions at $sqrt{s} = 7$ TeV (CMS_2011_S8968497)
Event shapes (CMS_2011_S8957746)
Measurement of the NSD charged particle multiplicity at sqrt(s) = 0.9, 2.36, and 7 TeV with the CMS detector. (CMS_2011_S8884919)
Charged particle transverse momentum and pseudorapidity spectra from proton-proton collisions at 7000 GeV. (CMS_2010_S8656010)
Charged particle transverse momentum and pseudorapidity spectra from proton-proton collisions at 900 and 2360 GeV. (CMS_2010_S8547297)
Measurement of multi-jet cross sections (ATLAS_2011_S9128077)
Measurement of dijet production with a veto on additional central jet activity (ATLAS_2011_S9126244)
Calo-based underlying event at 900 GeV and 7 TeV in ATLAS (ATLAS_2011_S8994773)
Dijet Azimuthal Decorrelations (ATLAS_2011_S8971293)
Jet shapes at 7 TeV in ATLAS (ATLAS_2011_S8924791)
ATLAS_2010_S8994773
Track-based minimum bias at 900 GeV and 2.36 and 7 TeV in ATLAS (ATLAS_2010_S8918562)
Track-based underlying event at 900 GeV and 7 TeV in ATLAS (ATLAS_2010_S8894728)
Inclusive jet cross section and di-jet mass and chi spectra at 7 TeV in ATLAS (ATLAS_2010_S8817804)
Charged particles at 900 GeV in ATLAS (ATLAS_2010_S8591806)
Cross-section of and fragmentation function in anti-kt track jets (ATLAS_2010_CONF_2010_049)
Tranverse momentum spectra of pions, kaons and protons in pp collisions at $sqrt(s) = 0.9 TeV$ with ALICE at the LHC. (ALICE_2011_S8945144)
Charged particle $\langle p_\perp \rangle$ vs. $N_\text{ch}$ in pp collisions at 900 GeV (ALICE_2010_S8706239)
Pseudorapidities at three energies, charged multiplicity at 7 TeV. (ALICE_2010_S8625980)
Charged particle multiplicities at $\unit{0.9 \& 2.36}{\TeV}$ in three different pseudorapidity intervals. (ALICE_2010_S8624100)