44,564 research outputs found
Pacifigorgia smithsoniana Breedy & Guzman, 2004, new species
<i>Pacifigorgia smithsoniana,</i> new species <p>(Figs. 1 E–F, 4A–E)</p> <p> <b>Material examined</b>. <b> <i>Holotype</i>:</b> UCR 1406, Islote Frijol South, Gulf of Chiriquí, 2–5 m, H.M. Guzman, 24 April 2002.</p> <p> <b> <i>Paratypes</i>:</b> MCZ 57052, Punta Jicarón Nor­West, Gulf of Chiriquí, 3–6 m, H.M. Guzman, 18 April 2002; STRI 486, Bajo Foul, Península de Azuero, 15 m, H.M. Guzman, 11 April 2003; STRI 565, Islas Viudas, Gulf of Chiriquí, 4–6 m, H.M. Guzman, 18 April 2002; STRI 672, 673, Isla Pacora, Gulf of Chiriquí, 2–10 m, H.M. Guzman, 7 May 2003; UCR 1216, Punta Jicarón Nor­West, 3–6 m, H.M. Guzman, 18 April 2002; UCR 1422, 1423, Isla Brincano, Punta South­West, 3–15 m, H.M. Guzman, 27 April 2002; UCR 1429, 1430, Bajo Urracá, 3–20 m, H.M. Guzman, 27 April 2002.</p> <p> <b>Description</b>. Colonies wider than high, up to 150 in height, and 220 mm in width, composed of one or more fans. New fans arise from the others and grow parallel to them. Colour when wet preserved is reddish­orange and dark red when dry; when alive they range from red to dark red. Colonies of different coloured hues can be found on the same site, even on the same rock. Colonies have a strong holdfast, and the fans commonly arise directly from this, but some colonies have short stems up to 10 mm in length. Networks are regular and of closed meshes (Fig. 1 F), mostly angular, up to 7 mm in length and 3 mm in width (about 8–9 meshes/cm²). Mesh branches are squarish in section, up to 2.0 mm in diameter. There are no distinct midribs, but some thick basal branches (up to 10 mm in width) can be traced for short distances into the fans. End­branchlets are more rounded than squarish in section, up to 5 mm in length, and have pointed tips. Free­twigs are short (up to 3 mm in length). The polyps are retracted within dome­shaped, coenenchymal mounds which are slightly raised, and closely crowded on the branches. They are mostly arranged in two to four alternating rows along the branches; more on thick branches. There is a very thin rim of orange sclerites around the polyp apertures. Polyps are white with rods arranged in weak points, some very small biscuit­like rods are found at the base of the tentacles. Coenenchymal sclerites are different combinations and abundances of pink, and hues of red, from reddish­orange to pale yellow, and also multicoloured; many of them show a yellowish halo. The surface of the branches contains dark yellow capstans sparsely distributed on a solid layer of orange and reddish­orange, larger capstans and spindles. In some specimens, however, almost all sclerites have the same colour, generally reddish­orange, but a shine from yellow sclerites on the branches can always be seen. The coenenchymal sclerites are mostly wide capstans and spindles, robustly tuberculate, becoming barrel­like. Anthocodial sclerites are light yellow rods.</p> <p> <b>Holotype</b>. The holotype (Fig. 1 E) is a dry, deep red colony, mostly a single fan, and 120 mm in height, and 200 mm in width. The holdfast was broken at the time of collection. No complete midribs are present, but a thick branch (up to 10 mm in width) at the base subdivides in two thinner ones, which extend up to 70 mm into the fan. At the base of the colony the black axis is visible. Some short branches spread at right angles to form three very small secondary fans at different levels of the colony. The coenenchymal sclerites are mostly wide capstans and spindles, strongly ornamented, mainly reddish­orange, but some are mixtures of these colours. The spindles (up to 0.14 mm in length and 0.05 mm in width) have a complex ornamentation, mostly arranged as four whorls of warty tubercles.</p> <p>The ends are elongate, pointed or rounded, and abundant asymmetric forms occur with one blunt end and the other acute (Fig. 4 A): a few spindles are arched. The capstans are mostly large (up to 0.10 mm in length and 0.05 mm in width), with strong, warty tubercles. The most characteristic capstans are light red with a clearly marked waist and two tyre–like whorls of tubercles (Fig. 4 B), which are frequently found in sclerite samples. Less abundant smaller capstans, dark yellow (about 0.05 mm in length and 0.04 mm in width) with wide tubercles (Fig. 4 B) are also present. Four­radiates (up to 0.06 by 0.06 mm) with warty ends (Fig. 4 C), and various immature types of sclerites are present (Fig. 4 D). Anthocodial sclerites are yellow, sometimes pale. They are long rods (up to 0.11 mm in length and up to 0.03 mm in width) mostly with smooth or wavy margins, and some with short lobe­like projections (Fig. 4 E).</p> <p> <b>Habitat</b>. This species occurs scattered in patches among other more abundant species, such as <i>P. rubinoffi</i>, <i>P. rubicunda</i>, and <i>P. f i r m a</i>.</p> <p> <b>Etymology</b>. In honour of the Smithsonian Tropical Research Institute located in the Republic of Panama; for decades of support to basic research in tropical marine coastal ecosystems.</p> <p> <b>Distribution</b>. Only reported for the type localities.</p>Published as part of <i>Breedy, Odalisca & Guzman, Hector M., 2004, New species of the gorgoniian genus Pacifigorgia (Coelenterata: Octocorallia: Gorgoniidae) from Pacific Panama, pp. 1-15 in Zootaxa 541</i> on pages 10-12, DOI: <a href="http://zenodo.org/record/157702">10.5281/zenodo.157702</a>
Pacifigorgia sculpta Breedy & Guzman, 2004, new species
Pacifigorgia sculpta, new species (Figs. 1 G–H, 5 A–C) Material examined. Holotype: UCR 1497, Islote Frailes, Península de Azuero, 10–30 m, H.M. Guzman, 9 December 2001. Paratypes: MCZ 57053, Islote Frailes, 10–30 m, H.M. Guzman, 9 December 2001; STRI 389–390, Isla Jicarita, Gulf of Chiriquí, 20 m, H.M. Guzman, 8 August 2002; STRI 410–412, Isla Seca Grande, Gulf of Chiriquí, 20 m, H.M. Guzman and O. Breedy, 26 August 2002; STRI 454, Isla Roncadores, Gulf of Chiriquí, 10–20 m, H.M. Guzman and O. Breedy, 30 August 2002; STRI 476, 482, 497, Bajo Foul, Península de Azuero, 15 m, H.M. Guzman, 11 April 2003; STRI 602, Islote Frailes, 20 m, H.M. Guzman, 1 May 2003; STRI 628, Roca Catedral, 5–15 m, H.M. Guzman, 3 May 2003; STRI 650, Bajo Brincanco, Gulf of Chiriquí, 10–30 m, H.M. Guzman, 5 May 2003; STRI 718, 721–722, 729 – 731, 734, Bajo Trollope, Gulf of Panama, 10–20 m, H.M. Guzman, 6 August 2003; UCR 1037, 1042, Islote Frailes, 10–20 m, H.M. Guzman, 6 August 2003; UCR 1171, 1173, 1175, 1177, 1179, 1181, 1183, 1505, Roca Niagara, Gulf of Panama, 10–20 m, H.M. Guzman, 13 December 2001; UCR 1361 –1365, 1506, Piedra Hacha, 20–30 m, H.M. Guzman, 22 April 2002; UCR 1498, Isla Jicarita, Gulf of Chiriquí, 20–30 m, H.M. Guzman, 19 April 2002; UCR 1499, 1501, 1508, Islote Frailes, 10–30 m, H.M. Guzman, 12 December 2001. Description. Colonies wider than high, up to 120 mm in height and 200 mm in width. Most of the colonies are composed of a single fan, but some have two or three secondary fans that radiate from different parts of the main fan and grow parallel. Colour when preserved or alive is dark orange or reddish brown with lighter hues at the tips, and light ochre when dry. Colonies have a large holdfasts, and fans grow directly from this or sprout from short stems (up to 7 mm in diameter). Network is irregular. Meshes are very open (about 2–3 meshes/cm ²), mostly elongate, up to 45 mm in length, and 25 mm in width. Mesh branches are squarish in section, from 3 mm thick at their base to 1 mm at their tips. No midribs cross the fans, just some thick branches (up to 6 mm in diameter) at the base that diminish and merge with the fan. Endbranchlets are long; up to 25 mm in length. Freetwigs are abundant, up to 15 mm in length; they stick out from the fans, twist and grow parallel as free branches. The polyps are retracted within domeshaped coenenchymal mounds, which are prominent and arranged mostly in pairs along the sides of the branches. In dry specimens, the lateral distribution of the calices is more evident, and bands of coenenchyme are clear between them. The polyps are yellowish with rods arranged in strong, thick points, with some untidily arranged intermediate rods. The anthocodial rods are long, colourless or pale yellow (up to 0.18 mm in length and 0.02 mm in width). The coenenchymal sclerites are very ornamented, and are mostly large spindles (up to 0.22 mm in length, and 0.06 mm in width) with up to 8 complete whorls of tubercles, and warty ends. They are redorange to pale yellow and bicoloured, and together with P. s e n t a, include the longest spindles found in the genus. Capstans are less abundant in the slide samples; they are scarcely ornate, with only short tubercles. Holotype. The holotype (Fig. 1 G) is a single fan, 100 mm in height and 135 mm in width. Part of the holdfast was left behind when the specimen was collected. The preserved colony is reddish brown colony. Mesh branches are thick, about 2 mm in diameter. Numerous free twigs radiate from the fan as free branchlets. Endbranchlets reach 12 mm. Coenenchymal sclerites are redorange, pale yellow and bicoloured. They are mostly large spindles (up to 0.18 mm in length, and 0.06 mm in width) with 4–8 complete whorls of delicately sculpted tubercles, and with elongated warty ends, blunt, or acute (Fig. 5 A). There are also small, pale yellow capstans (up to 0.05 mm in length and 0.03 mm in width), and larger ones (up to 0.08 mm in length by 0.04 mm in width) with short, moderately warty tubercles (Fig. 5 B). Anthocodial sclerites are pale yellow. They are thin, long rods (up to 0.17 mm in length and 0.02 mm in width) with dentate margins and have acute, small warts, concentrated at the ends (Fig. 5 C). Remarks. This species is very similar to P. s e n t a, however, P. senta attains a larger size, the mesh branches are thinner, the meshwork finer (up to 23 mm long), and the colony has a more delicate appearance in comparison to the more robust P. sculpta. Dry specimens of P. s e n t a are brittle and the sclerites fall off easily, which is not the case in dry specimens of P. sculpta. Sclerites in both species are the largest recorded for the genus. Spindles in P. s e n t a and in P. sculpta reach the same size (up to 0.22 mm in length, and 0.06 mm in width), however, in P. s e n t a, the spindles have more whorls of tubercles (up to 10) than in P. sculpta (up to 8); thus sclerites of the latter have larger spaces between the whorls (and very warty tubercles). Capstans of both species are of similar shapes, but smaller sizes are reported for P. s e n t a (up to 0.06 mm in length) (Breedy & Guzman 2003 b). The colour of coenenchymal sclerites is definitely different. In all of the specimens of P. sculpta examined, two layers of differently coloured sclerites are clearly defined: reddishorange sclerites in the inner coenenchyme and pale yellow on the surface. In P. s e n t a, on the other hand, all sclerites are of the same colour; brownish pink to colourless. Anthocodial rods are also different, being shorter (up to 0.14 mm in length) and less spiny in P. s e n t a. We have found P. s c u l p t a at several localities in the Gulf of Chiriquí, and also from two sites in the Gulf of Panama, down to 30 m in depth. Breedy & Guzman (2003 b) pointed out that Stiasny (1943) dealt with a species from Isla del Rey, Gulf of Panama, sent to him by Hickson, which agrees with P. senta. Therefore, it was expected that P. s e n t a would be found to occur in Panama. Pacifigorgia senta has been collected from deeper waters, down to 40 m in Costa Rica. In recent collections made by dredging 35–60 m in depth, in Panamá, specimens of P. senta were indeed found, thus the occurrence of P. s e n t a is herein reported and confirmed. Curiously, both P. senta and P. sculpta, were collected together in the same dredge, what indicates that they may occur together. Habitat. Found from 10–40 m in depth, on vertical basaltic walls, living together with large P. e x i m i a colonies and many other octocorals. Though abundant in some places, this species is never the dominant species. Etymology. An adjective (L), sculptus = carved, in allusion to the ornamentation of the spindles. Distribution. Found widely distributed along Gulf of Panama, Gulf of Chiriquí, and Península de Azuero.Published as part of Breedy, Odalisca & Guzman, Hector M., 2004, New species of the gorgoniian genus Pacifigorgia (Coelenterata: Octocorallia: Gorgoniidae) from Pacific Panama, pp. 1-15 in Zootaxa 541 on pages 12-14, DOI: 10.5281/zenodo.15770
Going Beyond Counting First Authors in Author Co-citation Analysis
The present study examines one of the fundamental aspects of author co-citation analysis (ACA) - the way co-citation
counts are defined. Co-citation counting provides the data on which all subsequent statistical analyses and mappings
are based, and we compare ACA results based on two different types of co-citation counting - the traditional type that
only counts the first one among a cited work's authors on the one hand and a non-traditional type that takes into
account the first 5 authors of a cited work on the other hand. Results indicate that the picture produced through this non-traditional author co-citation counting contains more coherent author groups and is therefore considerably clearer. However, this picture represents fewer specialties in the research field being studied than that produced through the traditional first-author co-citation counting when the same number of top-ranked authors is selected and analyzed. Reasons for these effects are discussed
Leptogorgia cofrini Breedy & Guzman 2005
<i>Leptogorgia cofrini</i> Breedy & Guzman, 2005 <p>(Fig. 36A, 65)</p> <p> <i>Leptogorgia cofrini</i>. Breedy & Guzman, 2005: 3–9.</p> <p> <b>Material examined.</b> Holotype: UCR 398A, preserved, Islas Tortugas, Golfo de Nicoya, Costa Rica, 1.5 m, J. Cortés, 18 July 1985.</p> <p>Other material examined: PANAMA: ZMUC-ANT 129 q, s, u, v, Taboguilla Island, 5 m, T. Mortensen, 2 November 1915.</p> <p> <b>Diagnosis</b> (according to Breedy & Guzman 2005). Small, white colonies, up to 7 cm in length, and 5 cm in width. Axis cylindrical. Growth form upright, branching abundant, and in multiple planes with a single stem, reaching up to 3 mm in height before branching, or multiple stems (up to 4). Polyps sparsely placed all around branches, fully retractile. Sclerites colourless, and mostly capstans, up to 0.09 mm in length, and spindles, up to 0.12 mm in length, and long anthocodial rods up to 0.14 mm in length. The illustrated specimen is a colony 7.0 cm in length, and 6.0 cm in width.</p> <p> <b>Description.</b> Full description in Breedy & Guzman 2005.</p> <p> <b>Distribution.</b> Islas Tortugas, Golfo de Nicoya: type locality. Commonly found along the Pacific coasts of Costa Rica, and Panama (Table 2, Fig. 65).</p>Published as part of <i>Published, First, 2007, A revision of the genus Leptogorgia Milne Edwards & Haime, 1857 (Coelenterata: Octocorallia: Gorgoniidae) in the eastern Pacific, pp. 1-90 in Zootaxa 1419</i> on page 2
Pacifigorgia catedralensis Breedy & Guzman, 2004, new species
<i>Pacifigorgia catedralensis</i>, new species <p>(Figs. 1A–B, 2 A–E)</p> <p> <b>Material examined</b>. <b> <i>Holotype</i>:</b> UCR 1514, Roca Catedral, Gulf of Chiriquí, 5–15 m, H.M. Guzman, 3 May 2003.</p> <p> <b> <i>Paratypes</i>:</b> MCZ 57050, same data as holotype; UCR 1515, STRI 616A, same data, but 2 May 2003.</p> <p> <b>Description</b>. Colonies wider than high, up to 150 mm in height, and 200 mm in width, composed of multiple fans. New fans radiate from the base of the main axis or from different parts of the colony at different levels, and extend in various directions to produce complex arrangements. Colour when preserved or alive is purple, which fades when dry. Under a dissecting microscope, the surface of the branches show a layer of dark purple sclerites on a white, more densely packed layer of sclerites. Colonies develop a strong, elongate holdfast, and the fans grow directly from this, or are elevated above the substrate on short, thick stems. Network is regular and of closed meshes (about 6–7 meshes/cm²), with sizes up to 10 mm in length and 3 mm in width (Fig. 1B). Mesh branches are squarish in section, up to 2.0 mm thick. No distinct midribs were observed, but some thick branches at the base, up to 5 mm in width, extend for a short distance, up to 15 mm, into the fans. Endbranchlets are short, less than 2 mm in length. A few free­twigs project perpendicular to the fans, and reach up to 3 mm in length. The polyps are retracted within dome­shaped coenenchymal mounds which are slightly raised, and closely packed. They are arranged in pairs in longitudinal rows along the branches. Polyps are white with pink, and light purple rods arranged in points. Coenenchymal sclerites are mainly dark purple, white or colourless, and some partially tinted (up to half or up to three quarters of the sclerite). They are mostly wide, strongly tuberculated capstans and spindles. A combination of wide, dark purple capstans and spindles, and small colourless capstans (half the size of the large ones) was always observed in microscopic preparations. The occurrence of large, wide, anthocodial rods with smooth margins is very characteristic in this species.</p> <p> <b>Holotype</b>. The holotype (Fig. 1A) is 110 mm in height, and 150 mm in width. It is formed by two main fans joined at a 90° angle, and two small secondary fans that radiate perpendicularly to one of the main fans. The colony is attached to a small basalt rock by the holdfast. The main fan rises directly from the substrate with a thick branch (5 mm in diameter) which divides in two (about 3 mm in diameter), and extends a short distance into each fan. The preserved colony is purple, with polyps partially expanded showing the anthocodial rods arranged in clearly marked points. Coenenchymal sclerites are mostly wide spindles (up to 0.12 mm in length and 0.05 mm in width) with 4–6 complete whorls of tubercles or a complex arrangement of warts, and oval forms (up to 0.10 mm in length and 0.05 mm in width) (Fig. 2 A). Most of these sclerites have both ends rounded and blunt, but others have one or both ends more pointed. Capstans are also wide (up to 0.10 mm in length and 0.05 mm in width) with warty tubercles, some with elongated, warty ends, or asymmetric, with one blunt end and the other acute (Fig. 2 B). Four­radiates (up to 0.06 mm by 0.06 mm) with warty tips (Fig. 2 C), and various immature types of sclerites are commonly found when sampling (Fig. 2 D). Anthocodial sclerites are large rods (up to 0.13 mm in length and up to 0.03 mm in width) with smooth or lobed margins (Fig. 2 E).</p> <p> <b>Habitat</b>. This species was the shallow dominant species at Roca Catedral, growing on basaltic rocks in strong currents, together with less abundant colonies of <i>Pacifigorgia</i> s <i>mithsoniana</i> new species.</p> <p> <b>Etymology</b>. The species is named after the type locality, Roca Catedral.</p> <p> <b>Remarks.</b> This species has some similarity to <i>Pacifigorgia tabogae</i> (Hickson, 1928) with respect to the colour of the anthocodial sclerites (pink) and their points arrangement, but the morphology of both the colony and the sclerites is different.</p> <p> <b>Distribution</b>. Only reported for the type locality..</p>Published as part of <i>Breedy, Odalisca & Guzman, Hector M., 2004, New species of the gorgoniian genus Pacifigorgia (Coelenterata: Octocorallia: Gorgoniidae) from Pacific Panama, pp. 1-15 in Zootaxa 541</i> on pages 3-4, DOI: <a href="http://zenodo.org/record/157702">10.5281/zenodo.157702</a>
Gorgoniidae Lamouroux 1812
Family Gorgoniidae Lamouroux, 1812 <p> <i>Pacifigorgia</i> Bayer, 1951</p> <p> <b>Synonymy.</b> See Breedy & Guzman 2002: 793 <b>Type species</b>. <i>Gorgonia stenobrochis</i> Valenciennes, 1846, by original designation (Bayer 1951: 94).</p> <p> <b>Description.</b> See Breedy & Guzman 2002: 793</p> <p> <b>Distribution.</b> In the Eastern Pacific, the genus occurs from southern California to Chile and the Galápagos Islands; off the Atlantic coast, only one species has been found (<i>Pacifigorgia elegans</i>) from Trinidad to Brazil (Bayer 1951), and observed in Venezuela (pers. obs.).</p>Published as part of <i>Breedy, Odalisca & Guzman, Hector M., 2004, New species of the gorgoniian genus Pacifigorgia (Coelenterata: Octocorallia: Gorgoniidae) from Pacific Panama, pp. 1-15 in Zootaxa 541</i> on pages 2-3, DOI: <a href="http://zenodo.org/record/157702">10.5281/zenodo.157702</a>
WORD FORMATION PROCESSES ON SLANG WORDS USED BY TRANSSEXUAL
Bahasa adalah hal yang sangat penting dalam kehidupan manusia, hal ini berkaitan langsung dengan fungsinya sebagai alat utama dalam komunikasi verbal. Dalam penggunaanya sehari-hari, bahasa mengalami banyak sekali perkembangan. Hal ini dapat dikarenakan oleh faktor internal dari penutur sendiri ataupun pengaruh lingkungan dan perkembangan zaman. Salah satu perkembangan bahasa yang sekarang banyak sekali terjadi adalah munculnya fenomena slang. Kemunculan slang ini dipicu oleh faktor banyaknya kelompok-kelompok sosial yang bermunculan di masyarakat. Slang yang dahulu sering digunakan oleh kelompok penjahat, kini banyak digunakan oleh kelompok-kelompok sosial dalam masyarakat. Sehingga, slang kini bukan lagi menjadi hal tabu dalam penggunaan bahasa di masyarakat. Biasanya, mereka akan menciptakan slang-slang tertentu untuk ‘privatisasi komunikasi’ di internal kelompok yang hanya diketahui oleh anggota kelompok. Salah satu kelompok yang sering menggunakan slang adalah orang-orang transeksual. Dalam skripsi ini, penulis akan meneliti proses pembentukan kosakata slang yang digunakan oleh tokoh-tokoh transeksual dalam film-film di Indonesia. Objek dalam penelitian ini adalah beberapa film-film Indonesia yang didalamnya terdapat tokoh transeksual. Sedangkan dalam proses analisisnya penulis menggunakan metode agih. Dalam proses penelitian, data-data yang didapat dianalisis berdasarkan perpaduan teori-teori proses pembentukan kata oleh O’Grady dan Guzman (1996), Katamba (1993), Hatch dan Brown (1995) dan Kridalaksana (2007). Data berupa kosakata slang akan diklasifikasikan dalam jenis-jenis proses pembentukan kata, yaitu Compounding, Borrowing, Coinage, Blending, Clipping, Back Formation, Conversion, Inflection, Derivation, Cliticization, Reduplication dan Abbreviation
Measurement of the ratio of branching fractions B(B0→K∗0γ )/B(B0s→φγ ) and the directCP asymmetry inB 0→K∗0γ
The ratio of branching fractions of the radiative B decays B0→K⁎0γ and B0s→ϕγ has been measured using an integrated luminosity of 1.0 fb−1 of pp collision data collected by the LHCb experiment at a centre-of-mass energy of s√=7TeV. The value obtained is
B(B0→K⁎0γ)B(B0s→ϕγ)=1.23±0.06(stat.)±0.04(syst.)±0.10(fs/fd),
where the first uncertainty is statistical, the second is the experimental systematic uncertainty and the third is associated with the ratio of fragmentation fractions fs/fd. Using the world average value for B(B0→K⁎0γ), the branching fraction B(B0s→ϕγ) is measured to be (3.5±0.4)×10−5.
The direct CP asymmetry in B0→K⁎0γ decays has also been measured with the same data and found to be
ACP(B0→K⁎0γ)=(0.8±1.7(stat.)±0.9(syst.))%.
Both measurements are the most precise to date and are in agreement with the previous experimental results and theoretical expectations
Branching fraction and CP asymmetry of the decays B+→K0Sπ+ and B+→K0SK+
An analysis of B+ → K0
Sπ+ and B+ → K0
S K+ decays is performed with the LHCb experiment. The pp
collision data used correspond to integrated luminosities of 1 fb−1 and 2 fb−1 collected at centre-ofmass
energies of
√
s = 7 TeV and
√
s = 8 TeV, respectively. The ratio of branching fractions and the
direct CP asymmetries are measured to be B(B+ → K0
S K+
)/B(B+ → K0
Sπ+
) = 0.064 ± 0.009 (stat.) ±
0.004 (syst.), ACP(B+ → K0
Sπ+
) = −0.022 ± 0.025 (stat.) ± 0.010 (syst.) and ACP(B+ → K0
S K+
) =
−0.21 ± 0.14 (stat.) ± 0.01 (syst.). The data sample taken at
√
s = 7 TeV is used to search for
B+
c
→ K0
S K+ decays and results in the upper limit ( fc · B(B+
c
→ K0
S K+
))/( fu · B(B+ → K0
Sπ+
)) <
5.8 × 10−2 at 90% confidence level, where fc and fu denote the hadronisation fractions of a ¯b
quark
into a B+
c or a B+ meson, respectively
Measurement of b-hadron masses
Measurements of b-hadron masses are performed with the exclusive decay modes B +→J/ψK +, B 0→J/ψK +, B0→J/ψKS0, Bs0→J/ψφ and Λb0→J/ψΛ using an integrated luminosity of 35pb -1 collected in pp collisions at a centre-of-mass energy of 7 TeV by the LHCb experiment. The momentum scale is calibrated with J/ψ→μ +μ - decays and verified to be known to a relative precision of 2 ×10 -4 using other two-body decays. The results are more precise than previous measurements, particularly in the case of the Bs0 and Λb0 masses
- …
