Mixing of Pentaquark and Molecular States

There are experimental evidences for the existence of narrow states $\Theta^+$ and $\Theta_c$ with the same quantum numbers of $uudd\bar s$ and $uudd\bar c$ pentaquarks and also $NK^{(*)}$ and $ND^{(*)}$ molecular states. Their masses deviate from many theoretical estimates of the pure pentaquark and molecular states. In this work we study the possibility that the observed $\Theta^+$ and $\Theta_c$ are mixtures of pure pentaquark and molecular states. The mixing parameters are in general related to non-perturbative QCD which are not calculable at present. We determine them by fitting data from known states and then generalize the mechanism to $\Theta_b$ to predict its mass and width. The mixing mechanism can also naturally explain the narrow width for $\Theta^+$ and $\Theta_c$ through destructive interferences, even if the pure pentaquark and molecular states have much larger decay widths. We also briefly discuss the properties of the partner eigenstates of $\Theta^+$ and $\Theta_c$ and the possibility of experimentally observe them. Moreover, probable consequences of multi-state mixing are also addressed.Comment: 23 pages, 4 figures. Published version in EPJ

Measurement of the LT-asymmetry in \pi^0 electroproduction at the energy of the \Delta (1232) resonance

The reaction p(e,e'p)pi^0 has been studied at Q^2=0.2 (GeV/c)^2 in the region of W=1232 MeV. From measurements left and right of q, cross section asymmetries \rho_LT have been obtained in forward kinematics \rho_LT(\theta_\pi^0=20deg) = (-11.68 +/- 2.36_stat +/- 2.36_sys)$ and backward kinematics \rho_LT(\theta_\pi^0=160deg) =(12.18 +/- 0.27_stat +/- 0.82_sys). Multipole ratios \Re(S_1+^* M_1+)/|M_1+|^2 and \Re(S_0+^* M_1+)/|M_1+|^2 were determined in the framework of the MAID2003 model. The results are in agreement with older data. The unusally strong negative \Re(S_0+^* M_1+)/|M_1+|^2 required to bring also the result of Kalleicher et al. in accordance with the rest of the data is almost excluded.Comment: 7 pages, 7 figures, 4 tables. Changed content. Accepted for publication in EPJ

Sebagai Negara Super Power Kebudayaan, Indonesia belum Memiliki Strategi Kebudayaan

Indonesia yang disebut oleh UNESCO sebagai negara super power kebudayaan, belum memiliki Strategi Kebudayaan. Untuk menjawab hal ini, Direktorat Jenderal Kebudayaan, Kemdikbud kini sedang bekerja keras menjaring pokok-pokok pikiran kebudayaan yang dimulai dari seluruh daerah (kabupaten/kota), provinsi hingga nasional, untuk dijadikan landasan kebijakan strategi kebudayaan. Dijadwalkan proses penyusunan Pokok Pikiran Kebudayaan Daerah (PPKD) Kabupaten/Kota berlangsung 15 April - 21 Mei 2018. Dilanjutkan penyusunan PPKD tingkat Propinsi 6 Agustus- 5 Oktober 2018. Adapun hasilnya akan dibawa ke tingkat nasional untuk disusun dan ditetapkan sebagai Strategi Kebudayaan dalam forum Kongres Kebudayaan Indonesia pada Oktober 2018 mendatan

apiculatus

Calochortus apiculatus Bakerthree-spot mariposa lily;Baker's mariposa lily;pointed-tip mariposa lilycalochorte apiculéapiculatusWestcastle, Castle Falls, valley floorLodgepole forest4300 fee

apiculatus

Calochortus apiculatus Bakerthree-spot mariposa lily;Baker's mariposa lily;pointed-tip mariposa lilycalochorte apiculéapiculatusWestcastle, Castle Falls, valley floor in forestLodgepole forest4300 feetLodgepol

laeve

Paspalum laeve Michx.field paspalumPaspalum longipilumN. of Bot. St., Bronx Park, City of New Yor

rubella

Sabulina rubella (Wahlenberg) Dillenberger & Kadereitreddish stitchwortsabline rougeâtreArenaria rubellaBlakiston Fallssteep south slope, dry shale and rock5000 feether

oregana

Oxalis oregana Nuttallredwood-sorrel;Oregon wood-sorreloxalide d'Orégonoreganaon s side of Palo Colorado Canyon Rd, ca. 3 mi e of Hwy 1 and 16 mi s of Carmelstramsideca. 50 feetViola sempervirens, Sequoia sempervirens, Myosotis latifoliaAbundan

lanceolata

Prunella vulgaris Linnaeuscommon self-heal;self-heal;common heal-all;heal-all;carpenter weedvulgaris0.4 mi. w. of Soda Springs Campground, 200 yds. S. of Highway 32Fls pink and whit

pauciflora

Packera pauciflora (Pursh) Á. Löve & D. Lövefew-flowered groundselséneçon paucifloreHighwood Pass - S. facing slopes of Mt. Raealong trail below treeline7500'Picea engelmannii, Abies lasiocarpa, Arnica cordifoli