We present a measurement of $B({\ensuremath{\pi}}^{0}\ensuremath{\rightarrow}{e}^{+}{e}^{\ensuremath{-}}\ensuremath{\gamma})/B({\ensuremath{\pi}}^{0}\ensuremath{\rightarrow}\ensuremath{\gamma}\ensuremath{\gamma})$, the Dalitz branching ratio, using data taken in 1999 by the E832 KTeV experiment at Fermi National Accelerator Laboratory. We use neutral pions from fully reconstructed ${K}_{L}$ decays in flight; the measurement is based on $\ensuremath{\sim}60$ thousand ${K}_{L}\ensuremath{\rightarrow}{\ensuremath{\pi}}^{0}{\ensuremath{\pi}}^{0}{\ensuremath{\pi}}^{0}\ensuremath{\rightarrow}\ensuremath{\gamma}\ensuremath{\gamma}\ensuremath{\gamma}\ensuremath{\gamma}{e}^{+}{e}^{\ensuremath{-}}\ensuremath{\gamma}$ decays. We normalize to ${K}_{L}\ensuremath{\rightarrow}{\ensuremath{\pi}}^{0}{\ensuremath{\pi}}^{0}{\ensuremath{\pi}}^{0}\ensuremath{\rightarrow}6\ensuremath{\gamma}$ decays. We find $B({\ensuremath{\pi}}^{0}\ensuremath{\rightarrow}{e}^{+}{e}^{\ensuremath{-}}\ensuremath{\gamma})/B({\ensuremath{\pi}}^{0}\ensuremath{\rightarrow}\ensuremath{\gamma}\ensuremath{\gamma})$ $({m}_{{e}^{+}{e}^{\ensuremath{-}}}>15\text{ }\text{ }\mathrm{MeV}/{c}^{2})=[3.920\ifmmode\pm\else\textpm\fi{}0.016(\text{stat})\ifmmode\pm\else\textpm\fi{}0.036(\text{syst})]\ifmmode\times\else\texttimes\fi{}{10}^{\ensuremath{-}3}$. Using the Mikaelian and Smith prediction for the ${e}^{+}{e}^{\ensuremath{-}}$ mass spectrum, we correct the result to the full ${e}^{+}{e}^{\ensuremath{-}}$ mass range. The corrected result is $B({\ensuremath{\pi}}^{0}\ensuremath{\rightarrow}{e}^{+}{e}^{\ensuremath{-}}\ensuremath{\gamma})/B({\ensuremath{\pi}}^{0}\ensuremath{\rightarrow}\ensuremath{\gamma}\ensuremath{\gamma})=[1.1559\ifmmode\pm\else\textpm\fi{}0.0047(\text{stat})\ifmmode\pm\else\textpm\fi{}0.0106(\text{syst})]%$. This result is consistent with previous measurements, and the uncertainty is a factor of 3 smaller than any previous measurement.

We present a measurement of $B(pi^0 rightarrow e^+e^- gamma)/B(pi^0 rightarrow gammagamma)$, the Dalitz branching ratio, using data taken in 1999 by the E832 KTeV experiment at Fermi National Accelerator Laboratory. We use neutral pions from fully reconstructed $K_L$ decays in flight; the measurement is based on about 60 thousand $K_L rightarrow pi^0pi^0pi^0 rightarrow gammagamma~gammagamma~e^+e^-gamma$ decays. We normalize to $K_L rightarrow pi^0pi^0pi^0 rightarrow 6gamma$ decays. We find $B(pi^0 rightarrow e^+e^- gamma)/B(pi^0 rightarrow gammagamma)$ $(m_{e^+e^-}$ u003e 15 MeV/$c^2)$ = $[3.920 pm 0.016(stat) pm 0.036 (syst)] times 10^{-3}$. Using the Mikaelian and Smith prediction for the $e^+e^-$ mass spectrum, we correct the result to the full $e^+e^-$ mass range. The corrected result is $B(pi^0 rightarrow e^+e^- gamma)/B(pi^0 rightarrow gammagamma) = [1.1559 pm 0.0047(stat) pm 0.0106 (syst)]$%. This result is consistent with previous measurements and theoretical predictions. The uncertainty is a factor of three smaller than any previous measurement.

We present a measurement of B(pi(0) -> e(+)e(-)gamma)/B(pi(0) -> gamma gamma), the Dalitz branching ratio, using data taken in 1999 by the E832 KTeV experiment at Fermi National Accelerator Laboratory. We use neutral pions from fully reconstructed K-L decays in flight; the measurement is based on similar to 60 thousand K-L -> pi(0)pi(0)pi(0) -> gamma gamma gamma gamma e(+)e(-)gamma decays. We normalize to K-L -> pi(0)pi(0)pi(0) -> 6 gamma decays. We find B(pi(0) -> e(+)e(-)gamma)/B(pi(0) -> gamma gamma) (m(e+e-) > 15 MeV/c(2)) = [3.920 +/- 0.016(stat) +/- 0.036(syst)] x 10(-3). Using the Mikaelian and Smith prediction for the e(+)e(-) mass spectrum, we correct the result to the full e(+)e(-) mass range. The corrected result is B(pi(0) -> e(+)e(-)gamma)/B(pi(0) -> gamma gamma) = [1.1559 +/- 0.0047(stat) +/- 0.0106(syst)]%. This result is consistent with previous measurements, and the uncertainty is a factor of 3 smaller than any previous measurement.

T. Alexopoulos, T. Andre, M. Arenton, R.F. Barbosa, ∗ A.R. Barker, † L. Bellantoni, A. Bellavance, E. Blucher, G.J. Bock, E. Cheu, S. Childress, R. Coleman, M.D. Corcoran, B. Cox, A.R. Erwin, R. Ford, A. Glazov, A. Golossanov, J. Graham, J. Hamm, K. Hanagaki, Y.B. Hsiung, H. Huang, V. Jejer, D.A. Jensen, R. Kessler, H.G.E. Kobrak, K. Kotera, J. LaDue, A. Ledovskoy, P.L. McBride, E. Monnier, ‡ K.S. Nelson, H. Nguyen, R. Niclasen, V. Prasad, X.R. Qi, E.J. Ramberg, R.E. Ray, M. Ronquest, E. Santos, ∗ P. Shanahan, J. Shields, W. Slater, D. Smith, N. Solomey, E.C. Swallow, 6 P.A. Toale, R. Tschirhart, Y.W. Wah, J. Wang, H.B. White, J. Whitmore, M. Wilking, B. Winstein, R. Winston, E.T. Worcester, T. Yamanaka, and E. D. Zimmerman

Systematics of neutron energy spectra for 120 GeV protons on C, Al, Cu and W targets are presented for data measured using the time-of-flight technique, room-scattering subtraction, and experimentally determined neutron detection efficiency.The measured neutron energy spectra exhibited low-energy angular-independent and high-energy angular-dependent components, below and above about 50 MeV, respectively.The neutron yields of both components increased linearly with target thickness.We obtained neutron yields for one interaction length target and determine the normalization factors from the ratio of the target thickness to the interaction length.We observed a non-linear relationship between neutron yield and target mass number.

The energy spectra of neutrons were measured by a time-of-flight method for 120 GeV protons on thick graphite, aluminum, copper, and tungsten targets with an NE213 scintillator at the Fermilab Test Beam Facility. Neutron energy spectra were obtained between 25 and 3000 MeV at emission angles of 30 degrees, 45 degrees, 120 degrees, and 150 degrees. The spectra were parameterized as neutron emissions from three moving sources and then compared with theoretical spectra calculated by PHITS and FLUKA codes. The yields of the theoretical spectra were substantially underestimated compared with the yields of measured spectra. The integrated neutron yields from 25 to 3000 MeV calculated with PHITS code were 16-36% of the experimental yields and those calculated with FLUKA code were 26-57% of the experimental yields for all targets and emission angles. (C) 2014 Elsevier B.V. All rights reserved.

The position and intensity of the Fermilab Main Injector 128GeV proton beam being delivered to NuMI have been monitored since the start of beam delivery in 2005. The results of this monitoring, and the monitoring of the performance of the instrumentation are discussed. Upgrades to and tests of improved SEM (multiwire Secondary Emission Monitors) are also discussed.

A methodology for the time-of-flight measurement of the neutron energy spectrum for a high-energy proton-beam-induced reaction was established at the Fermilab Test Beam Facility of the Fermi National Accelerator Laboratory. The 120-GeV proton beam with 3×105protons/spill was prepared for event-by-event counting of incident protons and emitted neutrons for time-of-flight energy determination. An NE213 organic liquid scintillator (12.7cm in diameter by 12.7cm in length) was employed with a veto plastic scintillator and a pulse-shape discrimination technique to identify neutrons. Raw waveforms of NE213, veto and beam detectors were recorded to discriminate the effects of multi-proton beam events by considering different time windows. The neutron energy spectrum ranging from 10 to 800MeV was obtained for a 60-cm-long copper target at 90° with respect to the beam axis. The obtained spectrum was consistent with that deduced employing the conventional unfolding technique as well as that obtained in a 40-GeV/c thin-target experiment.

The KTeV E799 experiment has conducted a search for the rare decays, K(L)→π(0)π(0)μ(+)μ(-) and K(L)→π(0)π(0)X(0)→π(0)π(0)μ(+)μ(-), where the X(0) is a possible new neutral boson that was reported by the HyperCP experiment with a mass of (214.3 ± 0.5) MeV/c(2). We find no evidence for either decay. We obtain upper limits of Br(K(L)→π(0)π(0)X(0)→π(0)π(0)μ(+)μ(-)) < 1.0 × 10(-10) and Br(K(L)→π(0)π(0)μ(+)μ(-)) < 9.2 × 10(-11) at the 90% confidence level. This result rules out the pseudoscalar X(0) as an explanation of the HyperCP result under the scenario that the dsX(0) coupling is completely real.

The KTeV E799 experiment has conducted a search for the rare decays, K-L -> pi(0)pi(0)mu(+)mu(-) and K-L -> pi(0)pi X-0(0) -> pi(0)pi(0)mu(+)mu(-), where the X-0 is a possible new neutral boson that was reported by the HyperCP experiment with a mass of (214: 3 +/- 0: 5) MeV/c(2). We find no evidence for either decay. We obtain upper limits of Br(K-L -> pi(0)pi(0)mu(+)mu(-) -> pi(0)pi X-0(0) -> pi(0)pi(0)mu(+)mu(-) ) < 1.0 x 10(-10) and Br(K-L -> pi(0)pi(0)mu(+)mu(-)) < 9.2 x 10(-11) at the 90% confidence level. This result rules out the pseudoscalar X-0 as an explanation of the HyperCP K-L result under the scenario that the (d) over bar sX(0) coupling is completely real.

Using the published KTeV samples of K-L -> pi(+/-)e(-/+)nu and K-L -> pi(+/-)mu(-/+)nu decays, we perform a reanalysis of the scalar and vector form factors based on the dispersive parametrization. We obtain phase-space integrals I-K(e) = 0.15446 +/- 0.00025 and I-K(mu) = 0.10219 +/- 0.00025. For the scalar form factor parametrization, the only free parameter is the normalized form factor value at the Callan-Treiman point (C); our best-fit results in InC = 0.1915 +/- 0.0122. We also study the sensitivity of C to different parametrizations of the vector form factor. The results for the phase-space integrals and C are then used to make tests of the standard model. Finally, we compare our results with lattice QCD calculations of F-K/F-pi and f(+)(0).

SUMMARY In insects, a family of peptides with sequence homology to the vertebrate calcitonins has been implicated in the control of diuresis, a process that includes mixing of the hemolymph. Here, we show that a member of the insect calcitonin-like diuretic hormone (CLDH) family is present in the American lobster, Homarus americanus, serving, at least in part, as a powerful modulator of cardiac output. Specifically, during an ongoing EST project, a transcript encoding a putative H. americanus CLDH precursor was identified; a full-length cDNA was subsequently cloned. In silico analyses of the deduced prepro-hormone predicted the mature structure of the encoded CLDH to be GLDLGLGRGFSGSQAAKHLMGLAAANFAGGPamide (Homam-CLDH), which is identical to a known Tribolium castaneum peptide. RT-PCR tissue profiling suggests that Homam-CLDH is broadly distributed within the lobster nervous system, including the cardiac ganglion (CG), which controls the movement of the neurogenic heart. RT-PCR analysis conducted on pacemaker neuron- and motor neuron-specific cDNAs suggests that the motor neurons are the source of the CLDH message in the CG. Perfusion of Homam-CLDH through the isolated lobster heart produced dose-dependent increases in both contraction frequency and amplitude and a dose-dependent decrease in contraction duration, with threshold concentrations for all parameters in the range 10–11 to 10–10 mol l–1 or less, among the lowest for any peptide on this system. This report is the first documentation of a decapod CLDH, the first demonstration of CLDH bioactivity outside the Insecta, and the first detection of an intrinsic neuropeptide transcript in the crustacean CG.

E. Abouzaid, M. Arenton, A.R. Barker, ∗ L. Bellantoni, E. Blucher, G.J. Bock, E. Cheu, R. Coleman, M.D. Corcoran, B. Cox, A.R. Erwin, C.O. Escobar, A. Glazov, A. Golossanov, R.A. Gomes, P. Gouffon, Y.B. Hsiung, D.A. Jensen, R. Kessler, K. Kotera, A. Ledovskoy, P.L. McBride, E. Monnier, † H. Nguyen, R. Niclasen, D.G. Phillips II, E.J. Ramberg, R.E. Ray, M. Ronquest, E. Santos, W. Slater, D. Smith, N. Solomey, E.C. Swallow, 6 P.A. Toale, R. Tschirhart, Y.W. Wah, J. Wang, H.B. White, J. Whitmore, M. J. Wilking, B. Winstein, R. Winston, E.T. Worcester, T. Yamanaka, E. D. Zimmerman, and R.F. Zukanovich University of Arizona, Tucson, Arizona 85721 University of California at Los Angeles, Los Angeles, California 90095 Universidade Estadual de Campinas, Campinas, Brazil 13083-970 The Enrico Fermi Institute, The University of Chicago, Chicago, Illinois 60637 University of Colorado, Boulder, Colorado 80309 Elmhurst College, Elmhurst, Illinois 60126 Fermi National Accelerator Laboratory, Batavia, Illinois 60510 Osaka University, Toyonaka, Osaka 560-0043 Japan Rice University, Houston, Texas 77005 Universidade de São Paulo, São Paulo, Brazil 05315-970 The Department of Physics and Institute of Nuclear and Particle

The KTeV E799 experiment has conducted a search for the rare decay K-L ->pi(0)pi(0)gamma via the topology K-L ->pi(0)pi(0)(D)gamma (where pi(0)(D)->gamma e(+)e(-)). Because of Bose statistics of the pi(0) pair and the real nature of the photon, the K-L ->pi(0)pi(0)gamma decay is restricted to proceed at lowest order by the CP conserving direct emission (DE) of an E2 electric quadrupole photon. The rate of this decay is interesting theoretically since chiral perturbation theory predicts that this process vanishes at level O(p(4)). Therefore, this mode probes chiral perturbation theory at O(p(6)). In this paper we report a determination of an upper limit of 2.43x10(-7) (90% CL) for K-L ->pi(0)pi(0)gamma. This is approximately a factor of 20 lower than previous results.

E. Abouzaid, M. Arenton, A.R. Barker, ∗ L. Bellantoni, E. Blucher, G.J. Bock, E. Cheu, R. Coleman, M.D. Corcoran, B. Cox, A.R. Erwin, C.O. Escobar, A. Glazov, A. Golossanov, R.A. Gomes, P. Gouffon, Y.B. Hsiung, D.A. Jensen, R. Kessler, K. Kotera, A. Ledovskoy, P.L. McBride, E. Monnier, † H. Nguyen, R. Niclasen, D.G. Phillips II, E.J. Ramberg, R.E. Ray, M. Ronquest, E. Santos, W. Slater, D. Smith, N. Solomey, E.C. Swallow, 6 P.A. Toale, R. Tschirhart, Y.W. Wah, J. Wang, H.B. White, J. Whitmore, M. J. Wilking, B. Winstein, R. Winston, E.T. Worcester, T. Yamanaka, E. D. Zimmerman, and R.F. Zukanovich

The MINER$ν$A TestBeam Detector calibrations will take place in the MTEST facility at Fermilab. It will use a beam of hadrons between 300 and 1500 MeV/c to analyze the response of the MINERvA detector components. The aim of the present work is to design the beam while considering radiation hazards at the hall. To accomplish this, we are using a Monte Carlo simulation based on Geant4 and actual data taken from measurements of the elements that make up the beamline.