Measurement of the electric polarizability of He-3

Goeckner, F. ; Lamm, L.O. ; Knutson, L.D. ;
Phys.Rev.C 43 (1990) 66-72, 1990.
Inspire Record 308590 DOI 10.17182/hepdata.26105

Measurements of relative differential cross sections have been obtained for elastic scattering of He3 nuclei from Pb208 at energies well below the Coulomb barrier. The measurements show deviations from Rutherford scattering, which are attributed to electric polarization of the He3 nuclei in the Coulomb field of Pb208. The deduced value of the electric polarizability for He3 is α=0.250±0.040 fm3. This result is significantly larger than expected from measurements of cross sections for He3 photodisintegration.

1 data table match query

No description provided.


HIGH-ENERGY DIFFRACTION DISSOCIATION OF K0(L) INTO EXCLUSIVE FINAL STATES

Lamm, M.J. ; Wiss, J.E. ; Avery, P. ; et al.
Phys.Rev.D 36 (1987) 3341-3352, 1987.
Inspire Record 244943 DOI 10.17182/hepdata.23353

We have observed diffraction dissociation of KL0 mesons with a carbon target into the exclusive final states KS0π+π−, KS0ω, and KS0φ. The diffraction production cross section for these states is not strongly dependent on the incident energy, varying at most by 30% between 75 and 150 GeV. The mass distributions do not change appreciably as a function of laboratory energy. The ratio of the diffractive mass-threshold production of K*±π∓, KS0ρ, KS0ω, and KS0φ is compared with previously obtained lower-energy data.

4 data tables match query

TP (=T-TMIN) distribution for K0S PI+ PI- events satisfying the diffractive cuts.

TP distributions for K0S OMEGA and K0S PHI events which satisfy the diffractive cuts.

CROSS SECTIONS PER NUCLEUS.

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A first measurement of low x low Q**2 structure functions in neutrino scattering.

The CCFR & NuTeV collaborations Fleming, B.T. ; Adams, T. ; Alton, A. ; et al.
Phys.Rev.Lett. 86 (2001) 5430-5433, 2001.
Inspire Record 537572 DOI 10.17182/hepdata.19408

A new structure function analysis of CCFR deep inelastic nu-N and nubar-N scattering data is presented for previously unexplored kinematic regions down to Bjorken x=0.0045 and Q^2=0.3 GeV^2. Comparisons to charged lepton scattering data from NMC and E665 experiments are made and the behavior of the structure function F2_nu is studied in the limit Q^2 -> 0.

1 data table match query

F2 measurements.


Neutrino Production of Opposite Sign Dimuons at Tevatron Energies

Foudas, C. ; Bachmann, K.T. ; Bernstein, R.H. ; et al.
Phys.Rev.Lett. 64 (1990) 1207, 1990.
Inspire Record 26417 DOI 10.17182/hepdata.20000

We have measured the strange-quark content of the nucleon, ηs=−0.08+0.012, and the Kobayashi-Maskawa matrix element ‖Vcd‖=0.220−0.018+0.015 using a sample of 1797 νμ- and ν¯μ-induced μ−μ+ events with Pμ≥9 GeV/c and 30≤Eν≤600 GeV. The data are consistent with the slow-rescaling hypothesis of charm production in ν-N scattering and within this formalism yield a value of the charm-quark mass parameter mc=1.31−0.48+0.64 GeV/c2. .AE

2 data tables match query

No description provided.

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Search for the lepton number violating process anti-nu/mu e- --> mu- anti-nu/e.

The NuTeV collaboration Formaggio, J.A. ; Yu, J. ; Yu, J. ; et al.
Phys.Rev.Lett. 87 (2001) 071803, 2001.
Inspire Record 555474 DOI 10.17182/hepdata.42668

The NuTeV experiment at Fermilab has used a sign-selected neutrino beam to perform a search for the lepton number violating process $\bar{\nu}_mu e^- \to \mu^- \bar{\nu}_e$, and to measure the cross-section of the Standard Model inverse muon decay process $\nu_{\mu} e^- \to \mu^- \nu_e$. NuTeV measures the inverse muon decay asymptotic cross-section $\sigma/E$ to be 13.8 $\pm$ 1.2 $\pm$ 1.4 x $10^{-42} cm^2$/GeV. The experiment also observes no evidence for lepton number violation and places one of the most restrictive limits on the LNV/IMD cross-section ratio at $\sigma (\bar{\nu}_{\mu} e^- \to \mu^- \bar{\nu}_e) /\sigma (\nu_{\mu}e^- \to \mu^- \nu_e$) $\le$ 1.7% at 90% C.L. for V-A couplings and $\le$ 0.6% for scalar couplings.

2 data tables match query

No description provided.

No description provided.


Measurement of the Nucleon Strange-Antistrange Asymmetry at Next-to-Leading Order in QCD from NuTeV Dimuon Data

The NuTeV collaboration Mason, D. ; Brau, J. ; Drucker, R.B. ; et al.
Phys.Rev.Lett. 99 (2007) 192001, 2007.
Inspire Record 774494 DOI 10.17182/hepdata.42701

We present a new measurement of the difference between the nucleon strange and antistrange quark distributions from dimuon events recorded by the NuTeV experiment at Fermilab. This analysis is the first to use a complete next to leading order QCD d escription of charm production from neutrino scattering. Dimuon events in neutrino deep inelastic scattering allow direct and independent study of the strange and antistrange content of the nucleon. We find a positive strange asymmetry with a significance of 1.6sigma . We also report a new measurement of the charm mass.

6 data tables match query

Neutrino forward dimuon cross sections for Y bins 0.32, 0.56 and 0.77 as a function of X for neutrino energy 88.

Neutrino forward dimuon cross sections for Y bins 0.32, 0.56 and 0.77 as a function of X for neutrino energy 174.

Neutrino forward dimuon cross sections for Y bins 0.32, 0.56 and 0.77 as a function of X for neutrino energy 247.

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A high statistics search for nu/mu (anti-nu/mu) --> nu/e (anti-nu/e) oscillations in the small mixing angle regime.

The CCFR/NuTeV collaboration Romosan, A. ; Arroyo, C.G. ; de Barbaro, L. ; et al.
Phys.Rev.Lett. 78 (1997) 2912-2915, 1997.
Inspire Record 426120 DOI 10.17182/hepdata.41667

Limits on $\nu_\mu (\overline{\nu}_\mu) \to \nu_e (\overline{\nu}_e)$ oscillations based on a statistical separation of $\nu_e N$ charged current interactions in the CCFR detector at Fermilab are presented. $\nu_e$ interactions are identified by the difference in the longitudinal shower energy deposition pattern of $\nu_e N \rightarrow eX$ versus $\nu_\mu N \to \nu_\mu X$ interactions. Neutrino energies range from 30 to 600 GeV with a mean of 140 GeV, and $\nu_\mu$ flight lengths vary from 0.9 km to 1.4 km. The lowest 90% confidence upper limit in $sin^2 2\alpha$ of $1.1 \times 10^{-3}$ is obtained at $\Delta m^2 \sim 300 eV^2$. For $sin^2 2\alpha = 1$, $\Delta m^2 > 1.6 eV^2$ is excluded, and for $\Delta m^2 \gg 1000 eV^2$, $sin^2 2\alpha > 1.8 \times 10^{-3}$ is excluded. This result is the most stringent limit to date for $\Delta m^2 > 25 eV^2$ and it excludes the high $\Delta m^2$ oscillation region favoured by the LSND experiment. The $\nu_\mu$-to-$\nu_e$ cross-section ratio was measured as a test of $\nu_\mu (\bar\nu_\mu) \leftrightarrow \nu_e (\bar\nu_e)$ universality to be $1.026 \pm 0.055$.

2 data tables match query

ALPHA is the neutrino mixing angle. The result for SIN(ALPHA)**2 from the fit at each Delta(M)**2 for NUMU -->NUE oscillations. The 90% CL upper limit is equal to the best fit SIN(ALPHA)**2 + 1.2*SIGMA.

No description provided.


A Precise measurement of the weak mixing angle in neutrino nucleon scattering

The CCFR collaboration Arroyo, C. ; King, B.J. ; Bachmann, K.T. ; et al.
Phys.Rev.Lett. 72 (1994) 3452-3455, 1994.
Inspire Record 360411 DOI 10.17182/hepdata.37276

We report a precise measurement of the weak mixing angle from the ratio of neutral current to charged current inclusive cross-sections in deep-inelastic neutrino-nucleon scattering. The data were gathered at the CCFR neutrino detector in the Fermilab quadrupole-triplet neutrino beam, with neutrino energies up to 600 GeV. Using the on-shell definition, ${\rm sin ~2\theta_W} \equiv 1 - \frac{{\rm M_W} ~2}{{\rm M_Z} ~2}$, we obtain ${\rm sin ~2\theta_W} = 0.2218 \pm 0.0025 ({\rm stat.}) \pm 0.0036 ({\rm exp.\: syst.}) \pm 0.0040 ({\rm model})$.

1 data table match query

Using the on-shell definition, sin2tw = 1-Mw**2/Mz**2.. Analysis contained 475 627 events after all cuts.. The first systematic error is experimental, the second is theoretical.


A Limit on muon-neutrino (anti-muon-neutrino) ---> tau-neutrino (anti-tau-neutrino) oscillations from a precision measurement of neutrino - nucleon neutral current interactions

McFarland, Kevin Scott ; Naples, D. ; Arroyo, C.G. ; et al.
Phys.Rev.Lett. 75 (1995) 3993-3996, 1995.
Inspire Record 396286 DOI 10.17182/hepdata.42343

We present a limit on $\nu_\mu(\overline{\nu}_\mu)\to\nu_\tau(\overline{\nu}_\tau)$ oscillations based on a study of inclusive $\nu N$ interactions performed using the CCFR massive coarse grained detector in the FNAL Tevatron Quadrupole Triplet neutrino beam. The sensitivity to oscillations is from the difference in the longitudinal energy deposition pattern of $\nu_\mu N$ versus $\nu_\tau N$ charged current interactions. The $\nu_\mu$ energies ranged from $30$ to $500$GeV with a mean of $140$GeV. The minimum and maximum $\nu_\mu$ flight lengths are $0.9$km and $1.4$km respectively. The lowest $90\%$ confidence upper limit in $\sin~22\alpha$ of $2.7\times 10~{-3}$ is obtained at $\Delta m~2\sim50$eV$~2$. This result is the most stringent limit to date for $25<\Delta m~2<90$eV$~2$.

2 data tables match query

ALPHA is the neutrino mixing angle. The result for SIN(ALPHA)**2 from the fit at each Delta(M)**2 for NUMU -->NUTAU oscillations. The 90% CL upper limit is equal to the best fit SIN(ALPHA)**2 + 1.2*SIGMA.

ALPHA is the neutrino mixing angle. The result for SIN(ALPHA)**2 from the fit at each Delta(M)**2 for NUMU -->NUE oscillations. The 90% CL upper limit is equal to the best fit SIN(ALPHA)**2 + 1.2*SIGMA.


Observation of neutral current charm production in nu/mu Fe scattering at the Tevatron.

The NuTeV collaboration Alton, A. ; Adams, T. ; Bolton, T. ; et al.
Phys.Rev.D 64 (2001) 012002, 2001.
Inspire Record 532481 DOI 10.17182/hepdata.41724

We report on the first observation of open charm production in neutral current deep inelastic neutrino scattering as seen in the NuTeV detector at Fermilab. The production rate is shown to be consistent with a pure gluon-$% Z^{0}$ boson production model, and the observed level of charm production is used to determine the effective charm mass. As part of our analysis, we also obtain a new measurement for the proton-nucleon charm production cross section at $\sqrt{s}=38.8$ GeV.

2 data tables match query

No description provided.

Linear A-dependence is assumed.