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pair production

Narrow muon bundles from muon pair production in rock

Narrow muon bundles from muon pair production in rock

... muon pair production in rock using the recently re- calculated cross-section for this ...muon pair production alone unless the cross-section of the process is 3 times larger than that used in ...

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Monitoring radiation damage in the vertex locator and top pair production in LHCb

Monitoring radiation damage in the vertex locator and top pair production in LHCb

... This thesis has also documented a technique for a cross-section measurement for top quark pair production in the forward region at LHCb using a dilepton+b-jet channel, analysed using 2.01 fb − 1 of data ...

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Pair production by a strong wakefield excited by intense neutrino bursts in plasmas

Pair production by a strong wakefield excited by intense neutrino bursts in plasmas

... positron pair production by electrons accelerated in a wakefield generated by the interaction between an in- tense electron-type neutrino beam and a collisionless cold unmagnetized electron–ion ...the ...

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Breit-Wheeler pair production from Worldline Instantons

Breit-Wheeler pair production from Worldline Instantons

... In vacuum, due to energy conservation, it occurs if the center mass energy of two initial photons exceeds a certain threshold equal to double electron mass. In an external electric field energy conservation for particles ...

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Pair Production of Beyond the Standard Model Higgs Bosons

Pair Production of Beyond the Standard Model Higgs Bosons

... Higgs production the infinite top mass limit works rather well, for Higgs pair production it is only valid if the invariant mass of the Higgs boson pair m hh is much smaller than twice the top ...

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Exclusive meson pair production in proton-proton collisions

Exclusive meson pair production in proton-proton collisions

... via two-body decay channels to light mesons is of special interest for both studying the dynamics of heavy quarkonia and for testing the QCD framework of CEP. However, in this case we may expect a sizeable background ...

5

Recent theoretical progress in top quark pair production at hadron colliders

Recent theoretical progress in top quark pair production at hadron colliders

... We are witnessing a renewed interest in the problem of the precise determination of the top quark mass: theoret- ical progress, coupled with the number of precise mea- surements already available from the LHC, suggests ...

5

Discovery of the Higgs Boson, Measurements of its Production, and a Search for Higgs Boson Pair Production

Discovery of the Higgs Boson, Measurements of its Production, and a Search for Higgs Boson Pair Production

... Yet with the keystone of the Standard Model finally hoisted into place, the bedrock is already frac- tured: the Standard Model is an incomplete theory. Precise measurements of the Cosmic Microwave Background (CMB) and of ...

201

Searches for direct pair production of third generation squarks with the ATLAS detector

Searches for direct pair production of third generation squarks with the ATLAS detector

... direct pair production cross-section is sufficient to produce observable signatures at the ATLAS detector and to probe various theoretical scenarios with the Large Hadron Col- lider (LHC) data at √ s = 8 ...

7

Top-pair production in hadron collisions at NNLL

Top-pair production in hadron collisions at NNLL

... Abstract. We present results for the total top-pair production cross section at the Tevatron and the LHC. Our predictions supplement fixed-order results with resummation of soft logarithms and Coulomb ...

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First measurement of the charge asymmetry in beauty quark pair production

First measurement of the charge asymmetry in beauty quark pair production

... The LHCb detector is a single-arm forward spectrometer covering the range 2 < η < 5 designed for the study of particles containing b or c quarks, described in detail in Refs. [15 – 18]. The trigger [19] consists of ...

10

Near-threshold charged kaon pair production in two protons collisions

Near-threshold charged kaon pair production in two protons collisions

... kaons production reactions, like description of neutron stars structure ...kaon pair production in pp collisions are also important for better understanding of the properties of kaons inside dense ...

5

Measurement of the Top Quark Pair Production Cross Section in pbarp Collisions

Measurement of the Top Quark Pair Production Cross Section in pbarp Collisions

... Sources for physics backgrounds depend on the channel under consideration. The main physics backgrounds to the dilepton channels are Z boson, Drell-Yan, and vector boson pair production. These are estimated ...

6

Searches for direct pair production of third generation squarks with the ATLAS detector

Searches for direct pair production of third generation squarks with the ATLAS detector

... Figure 7: Distributions of discriminating variables after the background fit in the various signal re- gions. The contributions from all SM backgrounds are shown as a histogram stack; the hatched bands represent the ...

10

Search for Stop Pair Production at the LHC using the CMS Detector

Search for Stop Pair Production at the LHC using the CMS Detector

... for pair production of top squark events in proton-proton collisions at a center-of-mass energy of √ s = 8 TeV is performed in a sample with a single isolated electron or muon, jets, large missing ...

5

Searches for pair production of third generation squarks with the ATLAS detector

Searches for pair production of third generation squarks with the ATLAS detector

... counterparts. Production of third generation squarks via decay of a gluino can be significant if the mass of the gluino does not exceed the TeV ...direct pair production rates at the LHC that can be ...

5

Constraints on anomalous couplings of the Higgs boson from pair production searches

Constraints on anomalous couplings of the Higgs boson from pair production searches

... a pair of Higgs bosons [3, ...boson pair production through virtual processes and lead to the cross sections for Higgs boson pair production that are significantly greater than the SM ...

6

Angular correlations in B B ̅ pair production at the LHC in the parton Reggeization approach

Angular correlations in B B ̅ pair production at the LHC in the parton Reggeization approach

... meson production via b − quark fragmentation into B − ...− pair production data measured by the CMS Collaboration [3], which we study, we should add contribution of NLO ...

8

Searches for the direct pair production of third generation squarks using the ATLAS detector

Searches for the direct pair production of third generation squarks using the ATLAS detector

... Many ATLAS third generation analyses are targeting discovery with Run 2 data, one of which is the sbottom analysis. The analysis has a similar strategy to the Run 1 sbottom analysis, focusing on final states with two ...

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Theoretical overview on top pair production and single top production

Theoretical overview on top pair production and single top production

... pansion. The solution is to resum these terms. For top pair production the resummation has been carried with next- to-next-to-leading logarithmic (NNLL) accuracy [43–48]. The resummed results can be ...

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