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相关论文: Conventional Physics Explanations for the NuTeV si…

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The NuTeV experiment has collected high statistics, high energy samples of $\nu$ and $\bar{\nu}$ charged-current interactions using the sign-selected Fermilab neutrino beam. NuTeV has extracted $\nu$ and $\bar{\nu}$ differential cross…

高能物理 - 实验 · 物理学 2007-05-23 V. Radescu

Following the precise measurement of $\theta_{13}$ by reactor experiments three main questions remain within the now standard picture of neutrino oscillations: (1) Is the value of $\theta_{23}$ such that the $\nu_3$ state contains more muon…

高能物理 - 实验 · 物理学 2019-08-13 M. D. Messier

A longstanding discrepancy between measured and predicted beam-normal single-spin asymmetries $A_{n}$ in elastic electron scattering off $^{208}$Pb has challenged our understanding of two-photon exchange (TPE) in heavy nuclei. We report a…

A measurement of the production of $W$ bosons with opposite electric charges in association with two jets is presented based on 140 fb$^{-1}$ of data collected by the ATLAS detector in proton-proton collisions at $\sqrt{s}=13$ TeV. The…

高能物理 - 实验 · 物理学 2024-08-27 ATLAS Collaboration

We investigate the neutral-current neutrino-nucleon deep inelastic scattering with particular emphasis on short-range correlation and EMC effect, as well as their impact on the weak-mixing angle $\sin^2\theta_W$ determination. The ratios of…

高能物理 - 唯象学 · 物理学 2023-05-29 Xing-Hua Yang , Fei Huang , Ji Xu

The possibility that non-supersymmetric conformal field theories softly broken below 100 TeV may provide an alternative to conventional grand unification is explored. We consider a low energy theory presumed to be of this type arising from…

高能物理 - 唯象学 · 物理学 2011-09-29 P. H. Frampton , R. N. Mohapatra , Sungwook Suh

Resistivity measurements of TiSe$_2$ typically show only a weak change in gradient at the charge density wave transition at $T_{CDW}\approx$ 200~K, but more prominently feature a broad peak at a lower $T_{peak}\sim$ 165~K, which has…

强关联电子 · 物理学 2019-05-29 Matthew D. Watson , Adam M. Beales , Philip D. C. King

We investigated a nuclear modification difference between up- and down-valence quark distributions by analyzing structure function F_2 and Drell-Yan cross-section ratios. Although nuclear modifications of the valence-quark distributions…

高能物理 - 唯象学 · 物理学 2009-11-10 M. Hirai , S. Kumano , T. -H. Nagai

The CDF II experiment has recently determined the mass of the $W$ boson to be $m_W(\text{CDF II}) = 80.4335 \pm 0.0094~$GeV, which deviates from the standard model prediction at $7\sigma$ level. Although this new result is in tension with…

高能物理 - 唯象学 · 物理学 2022-09-28 Ting-Kuo Chen , Cheng-Wei Chiang , Kei Yagyu

Since the first observation in 1964, CP violation remains one of the most elusive aspects of the standard model. The CDF collaboration has reported the first evidence of CP violation in the B system using the world's largest sample of $B…

高能物理 - 实验 · 物理学 2007-05-23 D. Bortoletto

The impact of atomic parity violation experiments on determination of the weak mixing parameter $\sin^2 \theta$ and the Peskin-Takeuchi parameters $S$ and $T$ is reassessed in the light of recent electroweak measurements at LEP, SLAC, and…

高能物理 - 唯象学 · 物理学 2016-08-24 Jonathan L. Rosner

Recently the CDF collaboration at the Tevatron reported a significant discrepancy between the direct measurement of the $W$-boson mass and its Standard Model (SM) prediction based on electroweak precision tests (EWPTs). In this paper we…

高能物理 - 唯象学 · 物理学 2022-11-09 JiJi Fan , Lingfeng Li , Tao Liu , Kun-Feng Lyu

We present a preliminary account of a new global QCD analysis of DIS data, including recent $\nu, \bar \nu$ DIS measurements. The model-independent cross section reanalysis by CCFR allows a new determination of the strange sea asymmetry,…

高能物理 - 唯象学 · 物理学 2007-05-23 Benjamin Portheault

Recent CDF and D0 measurements of the top quark forward-backward asymmetry at the Tevatron present deviations between 1-sigma and 2-sigma from QCD predictions and a cut M_inv > 450 GeV on the events increases this deviation to 3.4 sigma in…

高能物理 - 唯象学 · 物理学 2012-05-29 Davide Pagani

A preliminary analysis of zero hadronic energy dimuon production in the NuTeV experiment is presented (nu_mu (anti-nu_mu) + N -> nu_mu(anti-nu_mu) + mu^+ + mu^- + N). The data show a signal in excess of background which is attributed to…

高能物理 - 实验 · 物理学 2007-05-23 NuTeV Collaboration , T. Adams

There are two aspects to the 1995 summer update of the combined preliminary electroweak data from LEP and SLC. On the one hand, agreement between experiments and the Standard Model (SM) has improved for the line-shape and the asymmetry…

高能物理 - 唯象学 · 物理学 2007-05-23 Kaoru Hagiwara

The NuTeV Collaboration reported a value of $\sin^{2}\theta_{w}$ measured in neutrino-nucleon deep inelastic scattering, and found that the value is three standard deviations from the standard model prediction. This result is obtained under…

高能物理 - 唯象学 · 物理学 2009-11-10 Yong Ding , Bo-Qiang Ma

We give a detailed stability analysis of the Z-string in the standard electroweak model. We identify the mode that determines the stability of the string and numerically map the region of parameter space where the string is stable. For…

高能物理 - 唯象学 · 物理学 2009-10-22 Margaret James , Leandros Perivolaropoulos , Tanmay Vachaspati

Understanding neutrino interactions is an important task in searches for neutrino oscillations; e.g. the nu_{mu} -> nu_{tau} oscillation hypothesis will be tested through nu_{tau} production of tau in long-baseline experiments as well as…

高能物理 - 唯象学 · 物理学 2007-05-23 S. Kretzer , M. H. Reno

The Qweak experiment at Jefferson Laboratory measures the parity violating asymmetry of polarized electrons scattering from a proton target at very low momentum transfer. In the Standard Model, this asymmetry reveals the proton's coupling…

高能物理 - 实验 · 物理学 2019-08-13 Jean-Francois Rajotte