Campus Climate Assessment Final Report, 2016

The University of Pennsylvania’s Center for the Study of Race and Equity in Education, in collaboration with Office of the Vice President for Student Affairs, recently completed a comprehensive campus climate assessment of Illinois State University. This included inviting all campus stakeholders to participate in a climate survey, which was collaboratively designed to assess broad issues of diversity and inclusion; the University\u27s competency in addressing matters of harassment and discrimination; the ways in which faculty and staff respond to changing institution demographics; the extent to which the University is committed and responsive to matters of diversity and inclusion; and perceptions regarding the current campus climate as one supportive of equality and equitable outcomes for all stakeholders. A total of 1,952 respondents (faculty, staff, and students) initiated the survey, yielding 1,301 completed surveys and an overall 66% completion rate In addition, and consistent with our work at other colleges and universities across the nation, we spent three days on-campus at Illinois State University facilitating dozens of focus groups with students, faculty, and staff. These groups were identified and by the institution as communities whom could provide both a broad and deep sense of the campus climate for purposes of the assessment

The On-orbit Calibrations for the Fermi Large Area Telescope

The Large Area Telescope (LAT) on--board the Fermi Gamma ray Space Telescope began its on--orbit operations on June 23, 2008. Calibrations, defined in a generic sense, correspond to synchronization of trigger signals, optimization of delays for latching data, determination of detector thresholds, gains and responses, evaluation of the perimeter of the South Atlantic Anomaly (SAA), measurements of live time, of absolute time, and internal and spacecraft boresight alignments. Here we describe on orbit calibration results obtained using known astrophysical sources, galactic cosmic rays, and charge injection into the front-end electronics of each detector. Instrument response functions will be described in a separate publication. This paper demonstrates the stability of calibrations and describes minor changes observed since launch. These results have been used to calibrate the LAT datasets to be publicly released in August 2009.Comment: 60 pages, 34 figures, submitted to Astroparticle Physic

Measurement of CP observables in B± → D(⁎)K± and B± → D(⁎)π± decays

Measurements of CP observables in B ± →D (⁎) K ± and B ± →D (⁎) π ± decays are presented, where D (⁎) indicates a neutral D or D ⁎ meson that is an admixture of D (⁎)0 and D¯ (⁎)0 states. Decays of the D ⁎ meson to the Dπ 0 and Dγ final states are partially reconstructed without inclusion of the neutral pion or photon, resulting in distinctive shapes in the B candidate invariant mass distribution. Decays of the D meson are fully reconstructed in the K ± π ∓ , K + K − and π + π − final states. The analysis uses a sample of charged B mesons produced in pp collisions collected by the LHCb experiment, corresponding to an integrated luminosity of 2.0, 1.0 and 2.0 fb −1 taken at centre-of-mass energies of s=7, 8 and 13 TeV, respectively. The study of B ± →D ⁎ K ± and B ± →D ⁎ π ± decays using a partial reconstruction method is the first of its kind, while the measurement of B ± →DK ± and B ± →Dπ ± decays is an update of previous LHCb measurements. The B ± →DK ± results are the most precise to date

First observation of forward Z→bbˉZ \rightarrow b \bar{b} production in pppp collisions at s=8\sqrt{s}=8 TeV

The decay Z→bb¯ is reconstructed in pp collision data, corresponding to 2 fb −1 of integrated luminosity, collected by the LHCb experiment at a centre-of-mass energy of s=8 TeV. The product of the Z production cross-section and the Z→bb¯ branching fraction is measured for candidates in the fiducial region defined by two particle-level b -quark jets with pseudorapidities in the range 2.220 GeV and dijet invariant mass in the range 4520$GeV and dijet invariant mass in the range$45 < m_{jj} < 165$GeV. From a signal yield of$5462 \pm 763$$Z \rightarrow b \bar{b}$events, where the uncertainty is statistical, a production cross-section times branching fraction of$332 \pm 46 \pm 59$pb is obtained, where the first uncertainty is statistical and the second systematic. The measured significance of the signal yield is 6.0 standard deviations. This measurement represents the first observation of the$Z \rightarrow b \bar{b}$production in the forward region of$pp$ collisions

Study of the lineshape of the chi(c1) (3872) state

A study of the lineshape of the chi(c1) (3872) state is made using a data sample corresponding to an integrated luminosity of 3 fb(-1) collected in pp collisions at center-of-mass energies of 7 and 8 TeV with the LHCb detector. Candidate chi(c1)(3872) and psi(2S) mesons from b-hadron decays are selected in the J/psi pi(+)pi(-) decay mode. Describing the lineshape with a Breit-Wigner function, the mass splitting between the chi(c1 )(3872) and psi(2S) states, Delta m, and the width of the chi(c1 )(3872) state, Gamma(Bw), are determined to be (Delta m=185.598 +/- 0.067 +/- 0.068 Mev,)(Gamma BW=1.39 +/- 0.24 +/- 0.10 Mev,) where the first uncertainty is statistical and the second systematic. Using a Flatte-inspired model, the mode and full width at half maximum of the lineshape are determined to be (mode=3871.69+0.00+0.05 MeV.)(FWHM=0.22-0.04+0.13+0.07+0.11-0.06-0.13 MeV, ) An investigation of the analytic structure of the Flatte amplitude reveals a pole structure, which is compatible with a quasibound D-0(D) over bar*(0) state but a quasivirtual state is still allowed at the level of 2 standard deviations

Observation of the B+ -> D*K--(+) pi(+) decay

The B+\u2192D 17-K+\u3c0+ decay potentially provides an excellent way to investigate charm meson spectroscopy. The decay is searched for in a sample of proton-proton collision data collected with the LHCb detector at center-of-mass energies of 7 and 8 TeV, corresponding to an integrated luminosity of 3 fb-1. A clear signal is observed, and the ratio of its branching fraction to that of the B+\u2192D 17-\u3c0+\u3c0+ normalization channel is measured to be B(B+\u2192D 17-K+\u3c0+)/B(B+\u2192D 17-\u3c0+\u3c0+)=(6.39\ub10.27\ub10.48) 710-2, where the first uncertainty is statistical and the second is systematic. This is the first observation of the B+\u2192D 17-K+\u3c0+ decay

Measurement of CP asymmetries in two-body B-(s)(0)-meson decays to charged pions and kaons

The time-dependent CP asymmetries in B0\u2192\u3c0+\u3c0- and Bs0\u2192K+K- decays are measured using a data sample of p p collisions corresponding to an integrated luminosity of 3.0 fb-1, collected with the LHCb detector at center-of-mass energies of 7 and 8 TeV. The same data sample is used to measure the time-integrated CP asymmetries in B0\u2192K+\u3c0- and Bs0\u2192\u3c0+K- decays. The results are C\u3c0+\u3c0-=-0.34\ub10.06\ub10.01, S\u3c0+\u3c0-=-0.63\ub10.05\ub10.01, CK+K-=0.20\ub10.06\ub10.02, SK+K-=0.18\ub10.06\ub10.02, AK+K-\u394\u393=-0.79\ub10.07\ub10.10, ACPB0=-0.084\ub10.004\ub10.003, and ACPBs0=0.213\ub10.015\ub10.007, where the first uncertainties are statistical and the second systematic. Evidence for CP violation is found in the Bs0\u2192K+K- decay for the first time