Production of pi(0), eta, omega and exotic low mass mesons in N-N scattering

2000-10-01
Tatischeff, B
Yonnet, J
Rekalo, MP
Boivin, M
Comets, MP
Courtat, P
Gacougnolle, R
Le Bornec, Y
Loireleux, E
Reide, F
Willis, N
The differential cross sections of light meson production: X = pi (0), eta and omega were measured in (p) over right arrowp --> ppX reaction. A theoretical analysis based on s-channel contributions in 2(+) and 1(-) intermediate states was performed. Narrow peaks were looked for between eta and omega meson masses, and were extracted at 588, 608, 647, 681 and 700 MeV. The evidence for their existence is discussed in accordance with the corresponding number of standard deviations (SD).
ACTA PHYSICA POLONICA B

Suggestions

Measurement of isolated photon production in pp and PbPb collisions at root s(NN)=2.76 TeV
Chatrchyan, S.; et. al. (Elsevier BV, 2012-04-01)
Isolated photon production is measured in proton-proton and lead-lead collisions at nucleon-nucleon centre-of-mass energies of 2.76 TeV in the pseudorapidity range vertical bar eta vertical bar < 1.44 and transverse energies E-T between 20 and 80 GeV with the CMS detector at the LHC. The measured ET spectra are found to be in good agreement with next-to-leading-order perturbative QCD predictions. The ratio of PbPb to pp isolated photon E-T-differential yields, scaled by the number of incoherent nucleon-nucl...
Production of single heavy charged leptons at a linear collider
De Pree, Erin; Sher, Marc; Turan, İsmail (American Physical Society (APS), 2008-05-01)
A sequential fourth generation of quarks and leptons is allowed by precision electroweak constraints if the mass splitting between the heavy quarks is between 50 and 80 GeV. Although heavy quarks can be easily detected at the LHC, it is very difficult to detect a sequential heavy charged lepton, L, due to large backgrounds. Should the L mass be above 250 GeV, it cannot be pair-produced at a 500 GeV ILC. We calculate the cross section for the one-loop process e(+)e(-)-> L tau. Although the cross section is s...
Measurement of differential cross sections for the production of a pair of isolated photons in pp collisions at root s=7TeV
Chatrchyan, S.; et. al. (Springer Science and Business Media LLC, 2014-11-01)
A measurement of differential cross sections for the production of a pair of isolated photons in proton-proton collisions at root s = 7 TeV is presented. The data sample corresponds to an integrated luminosity of 5.0 fb(-1) collected with the CMS detector. A data-driven isolation template method is used to extract the prompt diphoton yield. The measured cross section for two isolated photons, with transverse energy above 40 and 25 GeV respectively, in the pseudorapidity range vertical bar eta vertical bar ...
Measurement of charged pion, kaon, and proton production in proton-proton collisions at root s=13 TeV
Sirunyan, A. M.; et. al. (2017-12-01)
Transverse momentum spectra of charged pions, kaons, and protons are measured in proton-proton collisions at root s = 13 TeV with the CMS detector at the LHC. The particles, identified via their energy loss in the silicon tracker, are measured in the transverse momentum range of p(T) approximate to 0.1-1.7 GeV/c and rapidities vertical bar y vertical bar < 1. The pT spectra and integrated yields are compared to previous results at smaller ffiffiffi root s and to predictions of Monte Carlo event generators. ...
Measurement of the single top quark and antiquark production cross sections in the t channel and their ratio in proton-proton collisions at root s=13 TeV
Sirunyan, A. M.; et. al. (Elsevier BV, 2020-01-01)
Measurements of the cross sections for the production of single top quarks and antiquarks in the t channel, and their ratio, are presented for proton-proton collisions at a center-of-mass energy of 13 TeV. The data set used was recorded in 2016 by the CMS detector at the LHC and corresponds to an integrated luminosity of 35.9 fb(-1). Events with one muon or electron are selected, and different categories of jet and b jet multiplicity and multivariate discriminators are applied to separate the signal from th...
Citation Formats
B. Tatischeff et al., “Production of pi(0), eta, omega and exotic low mass mesons in N-N scattering,” ACTA PHYSICA POLONICA B, pp. 2339–2342, 2000, Accessed: 00, 2020. [Online]. Available: https://hdl.handle.net/11511/68560.