978 research outputs found

    Compact storage ring to search for the muon electric dipole moment

    Full text link
    We present the concept of a compact storage ring of less than 0.5 m orbit radius to search for the electric dipole moment of the muon (dÎĽd_\mu) by adapting the "frozen spin" method. At existing muon facilities a statistics limited sensitivity of d_\mu \sim 5 \times 10^{-23} \ecm can be achieved within one year of data taking. Reaching this precision would demonstrate the viability of this novel technique to directly search for charged particle EDMs and already test a number of Standard Model extensions. At a future, high-power muon facility a statistical reach of d_\mu \sim 5 \times 10^{-25} \ecm seems realistic with this setup.Comment: improved for submission; minor modification

    Can Changing the Value System and Re-aligning the Financial Structure of the Institution Prevent Clinician Burnout?

    Get PDF
    Growing clinician burnout in the U.S. is nearing public health crisis levels. Each year, 400 physicians commit suicide, a rate more than twice that of the general population. Nearly one-third of nurses are emotionally exhausted. The traditional culture of health care - characterized by hierarchy, autonomy, competition, and individualism - has created an environment that makes it difficult for physicians to ask for help or seek care when they need it. The effects of this problem extend beyond the individual health care worker - burnout has been shown to lead to impaired professionalism, high staff turnover, a decrease in patient satisfaction, and an increase in medical errors. How are we to care for others if we cannot care for ourselves? Clearly, we must do a better job of creating environments that strengthen resilience and support the well-being of clinicians and other health care workers. Dr. Kirch will present a framework outlining the domains influencing clinician well-being, including the work environment, learning environment, and personal and professional factors. He will then delve into causal factors in each of these domains, including administrative and regulatory burdens, power differentials and mistreatment, and isolation and work-life imbalance. He will also examine the positive forces at work in each domain that promote wellness, social support, and group connectedness. Finally, Dr. Kirch will review the growing national momentum behind efforts to identify and implement evidence-based solutions promoting clinician well-being and combating burnout, depression, and suicide among U.S. health care workers. While much work remains to be done to create a healthy and resilient clinician workforce, addressing this problem at a national level will make a difference in the lives of clinicians, in the cultures of our institutions, and ultimately, in the outcomes of our patients.https://openworks.mdanderson.org/hrc_burnout_presentations/1007/thumbnail.jp

    Do internal capital markets in business groups mitigate firms' financial constraints?

    Get PDF
    We develop a new rationale for capital allocation in business groups’ internal capital markets. We show that productivity and pledgeable income jointly drive capital allocation within an internal capital market. In financially constrained business groups, an efficient internal capital market can allocate marginal funds to firms that have high pledgeability of income because of a multiplier effect: a dollar of internal funds generates a bigger increase in investment. This result has important implications for the business group affiliation strategy. Whether or not a financially constrained but highly productive firm will benefit from group affiliation depends on its borrowing capacity vis-à-vis other affiliates

    Experimental study of 199Hg spin anti-relaxation coatings

    Full text link
    We report on a comparison of spin relaxation rates in a 199^{199}Hg magnetometer using different wall coatings. A compact mercury magnetometer was built for this purpose. Glass cells coated with fluorinated materials show longer spin coherence times than if coated with their hydrogenated homologues. The longest spin relaxation time of the mercury vapor was measured with a fluorinated paraffin wall coating.Comment: 9 pages, 6 figures, submitted to JINS

    Measurement of the Transverse Polarization of Electrons Emitted in Free Neutron Decay

    Full text link
    Both components of the transverse polarization of electrons emitted in the beta-decay of polarized, free neutrons have been measured. The T-odd, P-odd correlation coefficient quantifying the component perpendicular to the decay plane defined by neutron polarization and electron momentum, was found to be R=0.008 +/- 0.015 +/-0.005. This value is consistent with time reversal invariance, and significantly improves limits on the relative strength of imaginary scalar couplings in the weak interaction. The value obtained for the correlation coefficient associated with the electron polarization component contained within the decay plane N=0.056 +/- 0.011 +/- 0.005, agrees with the Standard Model expectation, providing an important sensitivity test of the experimental setup.Comment: 4 pages, 4 figure
    • …
    corecore