Date

Subject_areas

Reactions

Version 2
Search for a new heavy gauge boson resonance decaying into a lepton and missing transverse momentum in 36 fb$^{-1}$ of $pp$ collisions at $\sqrt{s} =$ 13 TeV with the ATLAS experiment

The ATLAS collaboration Aaboud, Morad ; Aad, Georges ; Abbott, Brad ; et al.
No Journal Information, 2017.
Inspire Record 1605396 DOI 10.17182/hepdata.77273

The results of a search for new heavy $W^\prime$ bosons decaying to an electron or muon and a neutrino using proton-proton collision data at a centre-of-mass energy of $\sqrt{s} = 13$ TeV are presented. The dataset was collected in 2015 and 2016 by the ATLAS experiment at the Large Hadron Collider and corresponds to an integrated luminosity of 36.1 fb$^{-1}$. As no excess of events above the Standard Model prediction is observed, the results are used to set upper limits on the $W^\prime$ boson cross-section times branching ratio to an electron or muon and a neutrino as a function of the $W^\prime$ mass. Assuming a $W^\prime$ boson with the same couplings as the Standard Model $W$ boson, $W^\prime$ masses below 5.1 TeV are excluded at the 95% confidence level.

6 data tables

Transverse mass distribution for events satisfying all selection criteria in the electron channel.

Transverse mass distribution for events satisfying all selection criteria in the muon channel.

Upper limits at the 95% CL on the cross section for SSM W' production and decay to the electron+neutrino channel as a function of the W' pole mass.

More…

Energy dependence of pion and kaon production in central Pb + Pb collisions

The NA49 collaboration Afanasiev, S.V. ; Anticic, T. ; Barna, D. ; et al.
Phys.Rev. C66 (2002) 054902, 2002.
Inspire Record 586383 DOI 10.17182/hepdata.31729

Measurements of charged pion and kaon production in central Pb+Pb collisions at 40, 80 and 158 AGeV are presented. These are compared with data at lower and higher energies as well as with results from p+p interactions. The mean pion multiplicity per wounded nucleon increases approximately linearly with s_NN^1/4 with a change of slope starting in the region 15-40 AGeV. The change from pion suppression with respect to p+p interactions, as observed at low collision energies, to pion enhancement at high energies occurs at about 40 AGeV. A non-monotonic energy dependence of the ratio of K^+ to pi^+ yields is observed, with a maximum close to 40 AGeV and an indication of a nearly constant value at higher energies.The measured dependences may be related to an increase of the entropy production and a decrease of the strangeness to entropy ratio in central Pb+Pb collisions in the low SPS energy range, which is consistent with the hypothesis that a transient state of deconfined matter is created above these energies. Other interpretations of the data are also discussed.

33 data tables

The centrality of the collisions expressed as a percentage of the inelastic cross section (7.15nb), and the mean numbers of wounded nuclei.

The inverse slope parameter of the fitted transverse mass spectra.

The rapidity density averaged over the rapidity interval -0.6 to 0.6.

More…

Production of Phi mesons in p + p, p + Pb and central Pb + Pb collisions at E(beam) = 158-A-GeV

The NA49 collaboration Afanasev, S.V. ; Anticic, T. ; Bachler, J. ; et al.
Phys.Lett. B491 (2000) 59-66, 2000.
Inspire Record 537897 DOI 10.17182/hepdata.27038
7 data tables

Transverse mass distribution for PHI mesons produced in PB PB collisions averaged over the rapidity region 3.0 to 3.8.

Transverse mass distribution for PHI mesons produced in P P collisions averaged over the rapidity region 2.9 to 4.5.

Rapidity distributions for PHI mesons produced in PB PB collisions.

More…

Transverse momentum of J / psi, psi-prime and mass continuum muon pairs produced in S-32 U collisions at 200-GeV/c per nucleon

The NA38 collaboration Abreu, M.C. ; Astruc, J. ; Baglin, C. ; et al.
Phys.Lett. B423 (1998) 207-212, 1998.
Inspire Record 467276 DOI 10.17182/hepdata.40524
11 data tables

No description provided.

No description provided.

No description provided.

More…

Production of strange and multistrange hyperons and anti-hyperons in S W interactions at 200-GeV/c per nucleon

The WA85 collaboration Abatzis, S. ; Andrighetto, A. ; Antinori, F. ; et al.
Phys.Lett. B359 (1995) 382-386, 1995.
Inspire Record 407557 DOI 10.17182/hepdata.34056
4 data tables

Distributions are fitted with (1/MT**1.5)*DN/DMT=CONST*EXP(-MT/SLOPE).

No description provided.

No description provided.

More…

Hadron yields and hadron spectra from the NA49 experiment

The NA49 collaboration Jones, P.G. ; Afanasev, S.V. ; Alber, T. ; et al.
Nucl.Phys. A610 (1996) 188C-199C, 1996.
Inspire Record 432742 DOI 10.17182/hepdata.36468
4 data tables

CENTRAL COLLISIONS, PRELIMINARY DATA.

CENTRAL COLLISIONS, PRELIMINARY DATA.

CENTRAL COLLISIONS, PRELIMINARY DATA.

More…

Hadron distributions: Recent results from the CERN experiment NA44

The NA44 collaboration Xu, N. ; Bearden, I.G. ; Boggild, H. ; et al.
Nucl.Phys. A610 (1996) 175C-187C, 1996.
Inspire Record 432743 DOI 10.17182/hepdata.36469
1 data table

CENTRAL COLLISIONS: SIG(TRIG)/SIG(GEOM)=10%.


WA97 results on strangeness production in lead lead collisions at 158-A-GeV/c

The WA97 collaboration Helstrup, H. ; Andersen, E. ; Andrighetto, A. ; et al.
Nucl.Phys. A610 (1996) 165C-174C, 1996.
Inspire Record 432744 DOI 10.17182/hepdata.36503
4 data tables

No description provided.

No description provided.

PRELIMINARI DATA.

More…

Charged hadron distributions in p A and A-A collisions at the CERN SPS

The NA44 collaboration Bearden, I.G. ; Dodd, J. ; Boggild, H. ; et al.
Nucl.Phys. A590 (1995) 523C-526C, 1995.
Inspire Record 407678 DOI 10.17182/hepdata.36504
2 data tables

No description provided.

PRELIMINARY DATA FOR CENTRAL EVENTS.


Recent results from NA44 and a review of HBT

The NA44 collaboration Jacak, B.V. ; Boggild, H. ; Boissevain, J. ; et al.
Nucl.Phys. A590 (1995) 215C-232C, 1995.
Inspire Record 407654 DOI 10.17182/hepdata.36517
1 data table

PRELIMINARY DATA FOR CENTRAL EVENTS.


Strange particle production in sulphur - tungsten interactions at 200-GeV/c per nucleon

The WA85 collaboration Kinson, J.B. ; Abatzis, S. ; Antinori, F. ; et al.
Nucl.Phys. A544 (1992) 321-334, 1992.
Inspire Record 321220 DOI 10.17182/hepdata.36664
4 data tables

No description provided.

No description provided.

No description provided.

More…

Production of charged kaons in central S + S and O + Au collisions at 200-GeV/nucleon

The NA35 collaboration Kowalski, M. ; Bachler, J. ; Bartke, J. ; et al.
Nucl.Phys. A544 (1992) 609C-614C, 1992.
Inspire Record 343256 DOI 10.17182/hepdata.36667
5 data tables

No description provided.

No description provided.

No description provided.

More…

Hadron production in S + Ag and S + Au collisions at 200-GeV/nucleon

The NA35 collaboration Rohrich, D. ; Alber, T. ; Bachler, J. ; et al.
Nucl.Phys. A566 (1994) 35C-44C, 1994.
Inspire Record 378631 DOI 10.17182/hepdata.36563
3 data tables

No description provided.

NET BARYON DENSITY D(N)/D(Y) HAS BEEN DETERMINED AT THE RAPIDITY OF NN C.M.S., FOR NET BARYON THE FORMULAR: 2*(P-PBAR)+1.6*(LAMBDA- LAMBDABAR) HAS BEEN USED.

No description provided.


INCLUSIVE CROSS-SECTIONS OF CUMULATIVE PI- MESON PRODUCTION IN PI- C INTERACTIONS AT 40-GEV/C AS FUNCTIONS OF KINETIC AND TRANSVERSE ENERGIES. (IN RUSSIAN)

Baatar, Ts. ; Batsaikhan, Ts. ; Khurelbaatar, B. ; et al.
Sov.J.Nucl.Phys. 53 (1991) 282-285, 1991.
Inspire Record 287539 DOI 10.17182/hepdata.38754
3 data tables

No description provided.

No description provided.

No description provided.


Production of charged kaons in proton - nucleus and nucleus-nucleus collisions at 200-GeV/Nucleon

The NA35 collaboration Bachler, J. ; Bartke, J. ; Bialkowska, H. ; et al.
Z.Phys. C58 (1993) 367-374, 1993.
Inspire Record 342660 DOI 10.17182/hepdata.14428
22 data tables

Tranverse mass distribution for all charged kaons in S S collisions for the limited yrap range 1.4 to 2.4.

Tranverse mass distribution for K0S production in the limited rapidity range 1.4 to 2.4. Data are taken from Bartke et al. ZP C48 (1990) 191.

Rapidity distribution for K+ production in p SU interactions.

More…

Multi - Pion System Production in Pion - Nucleon Collisions at $p$ = 40-{GeV}/c

Angelov, N.S. ; Grishin, V.G. ; Kvatadze, R.A. ;
Yad.Fiz. 32 (1980) 1342-1350, 1980.
Inspire Record 153217 DOI 10.17182/hepdata.17933
9 data tables

No description provided.

No description provided.

No description provided.

More…