IMPEDANCE GROUP SUMMARY.
The impedance working group was charged to reply to the following 8 questions relevant to the design of high-intensity proton machines such as the SNS or the FNAL driver. These questions were first discussed one by one in the whole group, then each ne of them assigned to one member to summarize. On the lst morning these contributions were publicly read, re-discussed and re-written where required—hence they are not the opinion of a particular person, but rather the averaged opinion of all members of the working group.

title: Observation of B+ ---> K(1)(1270)+ gamma

title: Observation of large CP violation in the neutral B meson system.
abstract: We present a measurement of the standard model CP violation parameter sin2 phi(1) based on a 29.1 fb(-1) data sample collected at the Upsilon(4S) resonance with the Belle detector at the KEKB asymmetric-energy e(+)e(-) collider. One neutral B meson is fully reconstructed as a J/psi K(S), psi(2S)K(S), chi(c1)K(S), eta(c)K(S), J/psi K(L), or J/psi K(*0) decay and the flavor of the accompanying B meson is identified from its decay products. From the asymmetry in the distribution of the time intervals between the two B meson decay points, we determine sin2 phi(1) = 0.99+/-0.14(stat)+/-0.06(syst). We conclude that we have observed CP violation in the neutral B meson system.

title: Search for leptonic decays of D0 mesons
abstract: We search for the flavor-changing neutral current decays D-0 -> mu(+)mu(-) and D-0 -> e(+)e(-), and for the lepton-flavor violating decays D-0 -> e(+/-)mu(-/+) using 660 fb(-1) of data collected with the Belle detector at the KEKB asymmetric-energy e(+)e(-) collider. We find no evidence for any of these decays. We obtain significantly improved upper limits on the branching fractions: B(D-0 -> mu(+)mu(-)) e(+)e(-)) e(+)mu(-)) + B(D-0 -> mu(+)e(-)) < 2.6 x 10(-7) at 90% confidence level.

title: Measurement of branching fractions and charge asymmetries for two-body B meson decays with charmonium
abstract: We report branching fractions and charge asymmetries for exclusive decays of charged and neutral B mesons to two-body final states containing a charmonium meson, J/Ψ or Ψ/(2S). This result is based on a 29.4 fb-1 data sample collected at the Y(4S) resonance with the Belle detector at the KEKB asymmetric e+e- collider.

title: Studies of B0 ---> rho+- pi-+ and evidence of B0 ----> rho0 pi0

title: Study on the Bunch Lengthening and Its Related Instability on BEPC

title: Alignment of the CMS tracker with LHC and cosmic ray data
abstract: Any further distribution of this work must maintain attribution to the author(s) and the published article's title, journal citation and DOI.

title: Neutron-deuteron differential cross sections at 35.0 and 46.3 MeV
abstract: Differential cross sections have been measured for $\mathrm{nd}$ and $\mathrm{pd}$ scattering at 35.0 and 46.3 MeV. Only cross sections for c.m. angles \ensuremath{\gtrsim} 90\ifmmode^\circ\else\textdegree\fi{} have been measured in this work, which is in part a higher-precision remeasurement of earlier $\mathrm{nd}$ cross sections and whose main purpose has been to check possible $\mathrm{nd}\ensuremath{-}\mathrm{pd}$ differences which appeared in the earlier measurements at 36.0 and 46.3 MeV. Absolute $\mathrm{nd}$ cross sections of $\ensuremath{\simeq}5%$ precision, obtained by normalization to precision $\mathrm{np}$ cross sections, are compared with absolute $\mathrm{pd}$ cross sections measured at the University of California at Los Angeles. The differences in this comparison and in the $\mathrm{nd}\ensuremath{-}\mathrm{pd}$ relative cross sections measured here are smaller than indicated by the previous measurements. However, some systematic differences do appear to exist at angles near the cross-section minima and beyond.

title: IMPEDANCE OF THE BEPCII ELECTROSTATIC SEPARATORS
abstract: One option to upgrade Beijing Electron Positron Collider (BEPC), namely BEPCII, is to adopt multibunch collision in a single ring with a pretzel orbit. Thus 4 horizontal and 2 vertical electrostatic separators are needed. They have large contribution to the impedance budget of the storage ring. In this paper, ways to minimize the impedance of the separators are introduced, and the primary results of 3D modelling are presented.

title: Summary of the NLC Accelerator Working Group
abstract: The NLC (Next Linear Collider) accelerator working group was concerned with a presentation and thorough discussion of the prospects for achieving a 0.5 TeV linear collider and an examination of issues related to energy upgrades to attain 1.0 to 1.5 TeV in the center-of-mass. The contents of the talks and subsequent discussions are summarized in this paper. Highlights of R&D efforts toward the NLC that were underway during the Snowmass workshop are described. Finally, some of the recent results and issues from the Stanford Linear Collider (SLC), relevant to the design of a future linear collider, are also described. Further detail on most subjects can be found in the recently published “Zeroth-Order Design Report for a Next Linear Collider” (ZDR).