Invariant Mass Distribution of Jet Pairs Produced in Association with a<mml:math xmlns:mml="http://www.w3.org/1998/Math/MathML" display="inline"><mml:mi>W</mml:mi></mml:math>Boson in<mml:math xmlns:mml="http://www.w3.org/1998/Math/MathML" display="inline"><mml:mi>p</mml:mi><mml:mover accent="true"><mml:mi>p</mml:mi><mml:mo>¯</mml:mo></mml:mover></mml:math>Collisions at<mml:math xmlns:mml="http://www.w3.org/1998/Math/MathML" display="inline"><mml:msqrt><mml:mi>s</mml:mi></mml:msqrt><mml:mo>=</mml:mo><mml:mn

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H.; Wilson, J. S.; Wilson, P.; Winer, B. L.; Wittich, P.; Wolbers, S.; Wolfe, H.; Wright, T.; Wu, X.; Wu, Z.; Yamamoto, K.; Yamaoka, J.; Yang, T.; Yang, U. K.; Yang, Y.; Yao, W-M.; Yeh, G. P.; Yi, K.; Yoh, J.; Yorita, K.; Yoshida, T.; Yu, G. B.; Yu, I.; Yu, S. S.; Yun, J. C.; Zanetti, A.; Zeng, Y.; Zucchelli, S.

doi:10.1103/physrevlett.106.171801

Cited by 124 publications

(96 citation statements)

References 24 publications

Supporting

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“…This excess appears among events with a dijet invariant mass in the range of 120-160 GeV, and is consistent with a Gaussian distribution centered at 147 ± 4 GeV. As initially observed among 4.3 fb −1 of data, the excess consisted of 156 ± 42 events in the electron channel and 97 ± 38 in the muon channel, constituting a 3.2σ deviation from the Standard Model [1]. An excess was also identified in an inclusive analysis of events with a lepton, MET, and two or more jets, although with somewhat lower statistical significance.…”

Section: Introductionsupporting

confidence: 81%

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What the Tevatron found?

Buckley

Martín

Neil

2011

J. High Energ. Phys.

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Abstract:The CDF collaboration has reported a 4.1σ excess in their lepton, missing energy, and dijets channel. This excess, which takes the form of an approximately Gaussian peak centered at a dijet invariant mass of 147 GeV, has provoked a great deal of experimental and theoretical interest. Although the DØ collaboration has reported that they do not observe a signal consistent with CDF, there is currently no widely accepted explanation for the discrepancy between these two experiments. A resolution of this issue is of great importance -not least because it may teach us lessons relevant for future searches at the LHC -and it will clearly require additional information. In this paper, we consider the ability of the Tevatron and LHC detectors to observe evidence associated with the CDF excess in a variety of channels. We also discuss the ability of selected kinematic distributions to distinguish between Standard Model explanations of the observed excess and various new physics scenarios.

show abstract

Section: Introductionsupporting

confidence: 81%

“…Recently, the CDF collaboration reported the observation of an excess of events in their lepton, missing transverse energy (MET), and dijets channel [1,2] (see also the thesis, ref. [3]).…”

Section: Introductionmentioning

confidence: 99%

What the Tevatron found?

Buckley

Martín

Neil

2011

J. High Energ. Phys.

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“…Many of the attempts put forth to explain this asymmetry invoke Flavour Changing Neutral Currents (FCNC) in the topquark sector [5] mediated by the t-channel exchange of a new massive Z boson, as shown in figure 1. It has also been suggested [19,[22][23][24][25] that the anomalous dijet invariant mass distribution recently reported by the CDF collaboration in pp → W + 2 jets [26] could be evidence for such a boson.…”

mentioning

confidence: 94%

Search for same-sign top-quark pair production at $ \sqrt {s} = 7 $ TeV and limits on flavour changing neutral currents in the top sector

Quertenmont¹,

Chatrchyan

Başeğmez

et al. 2011

J. High Energ. Phys.

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An inclusive search for same-sign top-quark pair production in pp collisions at √ s = 7 TeV is performed using a data sample recorded with the CMS detector in 2010, corresponding to an integrated luminosity of 35 pb −1 . This analysis is motivated by recent studies of pp → tt reporting mass-dependent forward-backward asymmetries larger than expected from the standard model. These asymmetries could be due to Flavor Changing Neutral Currents (FCNC) in the top sector induced by t-channel exchange of a massive neutral vector boson (Z ). Models with such a Z also predict enhancement of same-sign top-pair production in pp or pp collisions. Limits are set as a function of the Z mass and its couplings to u and t quarks. These limits disfavour the FCNC interpretation of the Tevatron results.

show abstract

“…Consequently, it has no effect on the C 1 values and can be observed only in PV experiments that are sensitive to the C 2 values, such as SoLID-PVDIS [95,96]. One specific model, which was developed to explain excess di-quark production observed at Fermilab in the 100 GeV mass region [97], is based on the E(6) group. An interesting feature of this model that distinguishes it from older versions is that it also couples to dark matter and is relevant to dark matter experiments [98].…”

Section: Leptophobic Z Bosonmentioning

confidence: 99%

Parity violation in electron scattering

Souder

Paschke

2015

Front. Phys.

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By comparing the cross sections for left-and right-handed electrons scattered from various unpolarized nuclear targets, the small parity-violating asymmetry can be measured. These asymmetry data probe a wide variety of important topics, including searches for new fundamental interactions and important features of nuclear structure that cannot be studied with other probes. A special feature of these experiments is that the results are interpreted with remarkably few theoretical uncertainties, which justifies pushing the experiments to the highest possible precision. To measure the small asymmetries accurately, a number of novel experimental techniques have been developed.

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Invariant Mass Distribution of Jet Pairs Produced in Association with aWBoson inpp¯Collisions ats=

Cited by 124 publications

References 24 publications

What the Tevatron found?

What the Tevatron found?

Search for same-sign top-quark pair production at $ \sqrt {s} = 7 $ TeV and limits on flavour changing neutral currents in the top sector

Parity violation in electron scattering

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