Hi Ray,
I'll be just 'arrived' at CERN this Thursday so a bit jet lagged. Perhaps
better if Peter does the honors.
--
Best regards,
Frank
Frank E. Taylor
CERN MIT
ATLAS Collaboration Bldg. 26 - Rm 569
188-3-015 77 Mass. Ave.
Route de Meyrin 385, CH-1211 Geneva 23 Cambridge, MA 02139
Switzerland USA
Office: +41-22-767-6373 Office: 617-253-7249
FAX: +41-22-767-8350 FAX: 617-258-6923
CELL: 781-484-8776 (USA & Europe) CERN CELL +41 76 487 3563
email: [log in to unmask]
web: http://www2.lns.mit.edu/~fet/atlas_mit.html
On Tue, 17 Jan 2012, Ray F. Cowan wrote:
> Hi Peter, Frank,
>
> My apologies...I should have said a "1:00 PM Eastern time", not "11:00 AM".
> My read-through meeting starts an hour before our LQS meeting, but I
> may not be done in one hour.
>
> Thank you,
> --Ray
>
>
> On Tue, 17 Jan 2012, Ray F. Cowan wrote:
>
> > Hi Frank, Peter,
> >
> > I have an 11:00 AM Eastern meeting to do a final read-through with Bill
> > and Carlos of the D mixing review article this Thursday. I'm not sure
> > if we'll be finished in an hour, so I wonder if I could ask one of you
> > to chair this week's LQS meeting?
> >
> > If so, I need to give you the "chair code" for the dial-in number. If no
> > one enters the chair code, everyone just gets left on hold. But I don't
> > want to sent it in email, as I've already had two other chair codes
> > compromised this way. Could I leave it on your voice mail? If so, please
> > send me the best phone number to use. Thanks!
> >
> > This week we'll discuss the new "exotic hadrons" result from Belle that
> > Frank suggested (see below). The paper ref is http://arxiv.org/abs/1110.2251,
> > and rumors in BaBar have it that the interactions newswire post appeared
> > once the preprint was accepted by PRL.
> >
> > Dial-in is ReadyTalk 866-740-1260, code 3144955 at 2 PM Eastern as usual.
> >
> > Thank you,
> > --Ray
> >
> > ---------- Forwarded message ----------
> > Date: Tue, 10 Jan 2012 03:00:15 -0600 (CST)
> > From: Interactions News Wire <[log in to unmask]>
> > To: [log in to unmask]
> > Subject: [Interactions News Wire] #02-12 - KEK: Belle Discovers New Heavy
> > 'Exotic Hadrons'
> >
> > Interactions NewsWire #02-12
> > 10 January 2012 http://www.interactions.org
> > *******************************************
> > Source: KEK
> > Content: Press Release
> > Date Issued: 10 January 2012
> > *******************************************
> >
> > Belle Discovers New Heavy 'Exotic Hadrons'
> >
> > Two unexpected new hadrons containing bottom quarks have been discovered
> > by the Belle Experiment using the High Energy Accelerator Research
> > Organization (KEK)'s B Factory (KEKB), a highly-luminous,
> > electron?positron collider. These new particles have electric charge and
> > are thought to be "exotic" hadrons -- non-standard hadrons, containing at
> > least four quarks. Previously, a series of new and unexpected exotic
> > hadrons containing charm and anti-charm quarks have been observed. This
> > latest discovery from Belle demonstrates the existence of exotic hadrons
> > containing at least four quarks in a particle system including bottom
> > quarks .
> >
> > The Belle Experiment has discovered two new unexpected particles at the
> > KEK B Factory (KEKB). These new particles, termed Z(sub)b, contain both
> > one 'bottom' quark (the second-heaviest quark among the known six types of
> > quarks) and one 'anti-bottom' quark (the anti-particle of the bottom
> > quark). Moreover, they have electric charge and thus are thought to be
> > hadrons in which at least two additional quarks other than the bottom
> > quark and anti-bottom quark (at least four quarks in total) are bound
> > together.
> >
> > A large amount of data containing particles produced in electron?position
> > collisions using the KEKB accelerator, which has achieved the world's
> > highest luminosity, has been obtained. While focusing on 'bottomonia,'
> > heavy mesons composed of one bottom quark and one anti-bottom quark, we
> > conducted a detailed analysis of events involving two types of bottomonia,
> > the Upsilon and the h(sub)b. This analysis revealed two new unanticipated
> > charged particles that decay into a bottomonium (Upsilon or h(sub)b) and a
> > charged pi meson (pi ±), which were then called "Z(sub)b(10610)" and
> > "Z(sub)b(10650)" according to their mass values, 10610 and 10650 MeV/c^2,
> > respectively. They are approximately eleven times heavier than a proton.
> > In principle, a bottomonium particle?s charge is zero; therefore, these
> > charged Z(sub)b particles should have at least two more quarks, e.g. one
> > 'up' quark and one 'anti-down' quark.
> >
> > Several hundred mesons have been identified to date. All of them are
> > thought to be bound states of one quark and one anti-quark, with the
> > binding provided via the strong interaction of elementary particles. Using
> > the KEKB accelerator, however, the Belle experiment has discovered more
> > than ten 'exotic hadrons,' including the X(3872), Y(3940), and Z(4430),
> > which were not anticipated by existing theories. These new particles,
> > which are about 4?4.5 times heavier than a proton, may be exotic hadrons
> > consisting of one 'charm' quark and one 'anti-charm' quark plus two more
> > different types of lighter quarks. These unexpected discoveries have
> > attracted the attention of researchers around the world. The latest
> > discovery has revealed the existence of exotic hadrons containing bottom
> > quarks, which are heavier than charm quarks.
> >
> > The Belle B Factory experiment, which began in 1999 with the aim of
> > elucidating the origin of particle?anti-particle symmetry breaking (CP
> > violation), has contributed to the Nobel Prize in Physics in 2008 awarded
> > to Drs. Kobayashi and Maskawa. Moreover, data obtained from
> > electron?positron collisions with the world's highest luminosity achieved
> > at the KEKB accelerator have resulted in a series of unexpected
> > discoveries of exotic hadrons, opening a new research frontier in particle
> > physics. Data taking at the Belle Experiment has already been completed,
> > but a vast amount of data is still awaiting detailed analysis. Moreover,
> > an upgraded version of the KEKB/Belle Experiment, called SuperKEKB/Belle
> > II is currently being prepared. Belle II aims to collect 50 times more
> > data than the earlier experiment. Researchers are eagerly awaiting the
> > opportunity to explore the full spectrum of exotic hadrons containing
> > various types of quarks, including strange quarks, as well as charm and
> > bottom quarks, which are expected to be discovered in the future at the
> > SuperKEKB/Belle II Experiment. It is worth noting that quarks are bound by
> > the strong interaction and confined to composite particles, such as
> > mesons, and thus cannot exist individually as free particles. The detailed
> > exploration of exotic hadrons will advance the understanding of how and
> > what types of hadrons are possible based on the mechanisms defined by
> > quantum chromodynamics, which describes the strong interaction.
> >
> > A paper reporting this achievement has been accepted for publication by
> > Physical Review Letters on December 30, 2011, and will be published
> > shortly.
> >
> > Full release, with images and glossary, is available at:
> > http://www.kek.jp/intra-e/press/2012/011014/
> >
> > Contact Information
> >
> > About the details of the present study
> > Professor Yoshihide Sakai
> > Co-spokesperson, the Belle Collaboration
> > The High Energy Accelerator Research Organization
> > TEL: 81-29-864-5335
> > FAX: 81-29-864-5340
> > E-mail: [log in to unmask]
> >
> > Professor Toru Iijima
> > Co-spokesperson, the Belle Collaboration
> > The Center for Experimental Studies, the Kobayashi?Maskawa Institute for
> > the Origin of Particles and the Universe, Nagoya University
> > TEL: 81-52-789-2893
> > FAX: 81-52-782-5752
> > E-mail: [log in to unmask]
> >
> > Professor Thomas Browder
> > Co-spokesperson, the Belle Collaboration
> > University of Hawaii
> > TEL: 1-808-956-2936
> > FAX: 1-808-956-2930
> > E-mail: [log in to unmask]
> >
> > Public relations
> > Yohei Morita
> > Public Relations Officer
> > The High Energy Accelerator Research Organization
> > TEL: 81-29-879-6047
> > FAX: 81-29-879-6049
> > E-mail: [log in to unmask]
> >
> > To unsubscribe from the Interactions News Wire, please email [log in to unmask] with "remove" in the subject line.
