<chapter name="Onia Processes"> 
 
<h2>Onia Processes</h2> 
 
Production of any <ei>3S1</ei>, <ei>3PJ</ei>, and <ei>3DJ</ei> charmonium 
and bottomonium states via the colour-singlet and colour-octet 
mechanisms. This includes by default, but is not limited to, production of 
the <ei>3S1</ei> <ei>J/psi</ei> and <ei>Upsilon</ei> and their 
radially excited states, as well as the <ei>3PJ</ei> <ei>chi</ei> 
states and the <ei>3D1</ei> <ei>psi(3770)</ei>. In each process the 
heavy quark content, either <ei>ccbar</ei> or <ei>bbbar</ei>, is 
followed by a round-bracketed expression which specifies the physical 
state in spectroscopic notation, <ei>(2S+1) L J</ei>. Proceding this 
is a square-bracketed expression, also in spectroscopic notation, 
which specifies the Fock state through which the process occurs, 
where <ei>(1)</ei> indicates a colour-singlet state and <ei>(8)</ei> a 
colour-octet state. 
 
<p/> The unphysical colour-octet states follow the <code>id</code> 
scheme of <ei>99 n_q n_s n_r n_L n_J</ei> where <ei>n_q</ei> is the 
quark flavour of the state and <ei>n_s</ei> is the colour-octet state 
type. Here <ei>0</ei> is <ei>3S1</ei>, <ei>1</ei> is <ei>1S0</ei>, 
and <ei>2</ei> is <ei>3PJ</ei>. All remaining numbers follow the 
standard PDG numbering scheme. If a physical state is requested 
without a corresponding colour-octet state, a colour-octet state is 
automatically added to the <code>ParticleData</code> 
when a colour-octet process is selected. The colour-octet state is 
created with a mass given by the mass of the physical state plus the 
singlet-octet mass splitting parameter <code>Onia:massSplit</code>, 
which is by default set at 200 MeV, and decays exclusively 
to a gluon and the physical state. If the user wishes to manually 
set the mass splitting for each colour-octet state individually 
then <code>Onia:forceMassSplit</code> can be set to <ei>off</ei>. 
By default the widths of the octet states are set to vanish. 
This is not realistic, given their presumably rather rapid decay, 
but a nonvanishing width is not likely to have any measurable 
consequences that go beyond what comes from viewing the singlet-octet 
mass splitting as an effective parameter. 
 
<p/> 
The original Fortran code for these processes has been contributed 
by Stefan Wolf [unpublished]. For the C++ version only the unpolarized 
expressions are retained, since the theoretical predictions of the 
colour-octet model anyway do not agree with the experimental 
observations. Furthermore, the polarization effects are modest, 
so isotropic decay is not a bad starting point. Such an event sample 
can afterwards be reweighted at will by the user, to test various 
assumptions. The expressions for the colour-singlet production of 
the <ei>3S1</ei> and <ei>3PJ</ei> states can be found 
in <ref>Bai83</ref> and <ref>Gas87</ref>. Colour-octet expressions can 
be found in <ref>Cho96</ref> for the <ei>1S0</ei>, <ei>3S1</ei>, 
and <ei>3PJ</ei> states, and the matrix elements for the <ei>3DJ</ei> 
states are taken from <ref>Yua98</ref>. 
 
<p/> 
The implementation of charmonium and bottomonium production, including 
the colour-octet production mechanism, requires information on 
long-distance NRQCD matrix elements for the various wavefunctions 
involved. Default values for these are encoded in the <ei>O</ei> 
parameters and are taken from <ref>Nas00</ref>; see 
also <ref>Bar07</ref>. The <ei>3DJ</ei> long-distance matrix elements 
are extracted from <ref>Yua98</ref>. 
 
<p/> 
Note that states that differ only by the radial excitation number 
<ei>n_r</ei> share the same short-distance matrix elements. The 
program has therefore been written such that further radial 
excitations can be easily added by editing this file, without 
requiring a recompilation of the code. All related arrays must be 
expanded in exactly the same way, however, i.e. the code of the colour 
singlet state, the long-distance matrix elements and the individual 
process on/off switches. 
 
<p/> 
Double production of charmonium and bottomonium <ei>3S1</ei> states is 
also available, but with only the colour-singlet processes 
included. The short-distance matrix elements for these processes can 
be found in <ref>Hum83</ref> and <ref>Qia02</ref>. Arrays seperate to 
those used for single charmonium and bottomonium production set the 
long-distance NRQCD matrix elements. For consistency these values 
should be the same as those provided for single charmonium and 
bottomonium production, but are seperated to allow further control by 
the user if needed. 
 
<p/> 
The description of 
<aloc href="TimelikeShowers">final-state radiation</aloc> 
is in this case based on some further model assumptions. 
 
<p/> 
Most of the processes below are divergent in the limit <ei>pT &rarr; 0</ei>, 
and therefore a <ei>pTmin</ei> scale should be set. Comparisons with 
data indicate that this divergence can be tamed the same way as for 
the normal QCD <ei>2 &rarr; 2</ei> cross sections <ref>Bar07,Kra08</ref>, 
which makes sense, since they are all dominated by the same kind of 
<ei>t</ei>-channel gluon exchange. It is therefore possible to use the 
<aloc href="UserHooks">SuppressSmallPT</aloc> user hook to impose a 
reweighting that cancels the low-<ei>pT</ei> divergence. 
 
<p/> 
An eikonalized description of these processes, excluding double onia 
production, is included in the multiparton-interactions 
framework. Here the low-<ei>pT</ei> damping is automatic, and 
additionally the framework is more consistent (e.g. with respect to 
energy-momentum constraints and the impact-parameter description) for 
events where the onium production is not the hardest subprocess, as 
would often be the case in the low-<ei>pT</ei> limit. 
 
<flag name="Onia:forceMassSplit" default="on"> 
Force the mass splitting between the colour-singlet states and their 
corresponding colour-octet state to be <code>Onia:massSplit</code>. 
</flag> 
 
<parm name="Onia:massSplit" default="0.2" min="0.0" max="1.0"> 
Mass splitting in GeV between the physical colour-singlet 
states and their corresponding colour-octet state. 
</parm> 
 
<flag name="Onia:all" default="off"> 
Common switch for the group of onia production. 
</flag> 
<flag name="Onia:all(3S1)" default="off"> 
Common switch for the group of <ei>3S1</ei> onia production, 
e.g. <ei>J/psi</ei> and <ei>Upsilon</ei>. 
</flag> 
<flag name="Onia:all(3PJ)" default="off"> 
Common switch for the group of <ei>3PJ</ei> onia production, 
e.g. <ei>chi_c</ei> and <ei>chi_b</ei>. 
</flag> 
<flag name="Onia:all(3DJ)" default="off"> 
Common switch for the group of <ei>3DJ</ei> onia production, 
e.g. <ei>psi(3770)</ei>. 
</flag> 
<flag name="Charmonium:all" default="off"> 
Common switch for the group of charmonium production, 
e.g. <ei>J/psi</ei> and <ei>chi_c</ei>. 
</flag> 
<flag name="Bottomonium:all" default="off"> 
Common switch for the group of bottomonium production, 
e.g. <ei>Upsilon</ei> and <ei>chi_b</ei>. 
</flag> 
 
<h3>Charmonium 3S1 States</h3> 
 
<b>Warning</b>: changed <code>fvec</code>, <code>mvec</code> or 
<code>pvec</code> values must be provided as a comma-separated list 
with the right number of elements, without any blanks inside the list. 
 
<mvec name="Charmonium:states(3S1)" default="{443,100443}" 
min="0"> 
The <ei>3S1</ei> charmonium states that can be produced from the following 
processes. Note that all vectors within this section, 
either of flags or parameters, must be the same length as this 
vector. 
</mvec> 
 
<pvec name="Charmonium:O(3S1)[3S1(1)]" default="{1.16,0.76}" min="0.0"> 
The colour-singlet long-distance matrix 
elements <ei>&lt;O[3S1(1)]&gt;</ei> for the <ei>3S1</ei> charmonium states. 
</pvec> 
 
<pvec name="Charmonium:O(3S1)[3S1(8)]" default="{0.0119,0.0050}" 
min="0.0"> 
The colour-octet long-distance matrix 
elements <ei>&lt;O[3S1(8)]&gt;</ei> for the <ei>3S1</ei> charmonium states. 
</pvec> 
 
<pvec name="Charmonium:O(3S1)[1S0(8)]" default="{0.01,0.004}" min="0.0"> 
The colour-octet long-distance matrix 
elements <ei>&lt;O[1S0(8)]&gt;</ei> for the <ei>3S1</ei> 
charmonium states. 
</pvec> 
 
<pvec name="Charmonium:O(3S1)[3P0(8)]" default="{0.01,0.004}" min="0.0"> 
The colour-octet long-distance matrix 
elements <ei>&lt;O[3P0(8)]&gt;/m_Q^2</ei> for the <ei>3S1</ei> charmonium 
states. The remaining <ei>&lt;O[3PJ(8)]&gt;/m_Q^2</ei> 
are calculated from these long-distance matrix elements. 
</pvec> 
 
<fvec name="Charmonium:gg2ccbar(3S1)[3S1(1)]g" default="{off,off}"> 
Colour-singlet production of <ei>3S1</ei> charmonium states via 
<ei>g g &rarr; ccbar[3S1(1)] g</ei>. 
Code 401. 
</fvec> 
 
<fvec name="Charmonium:gg2ccbar(3S1)[3S1(1)]gm" default="{off,off}"> 
Colour-singlet production of <ei>3S1</ei> charmonium states via 
<ei>g g &rarr; ccbar[3S1(1)] g</ei> with a hard <ei>gamma</ei>. 
Code 441. 
</fvec> 
 
<fvec name="Charmonium:gg2ccbar(3S1)[3S1(8)]g" default="{off,off}"> 
Colour-octet production of <ei>3S1</ei> charmonium states via 
<ei>g g &rarr; ccbar[3S1(8)] g</ei>. 
Code 402. 
</fvec> 
 
<fvec name="Charmonium:qg2ccbar(3S1)[3S1(8)]q" default="{off,off}"> 
Colour-octet production of <ei>3S1</ei> charmonium states via 
<ei>q g &rarr; ccbar[3S1(8)] q</ei>. 
Code 403. 
</fvec> 
 
<fvec name="Charmonium:qqbar2ccbar(3S1)[3S1(8)]g" default="{off,off}"> 
Colour-octet production of <ei>3S1</ei> charmonium states via 
<ei>q qbar &rarr; ccbar[3S1(8)] g</ei>. 
Code 404. 
</fvec> 
 
<fvec name="Charmonium:gg2ccbar(3S1)[1S0(8)]g" default="{off,off}"> 
Colour-octet production of <ei>3S1</ei> charmonium states via 
<ei>g g &rarr; ccbar[1S0(8)] g</ei>. 
Code 405. 
</fvec> 
 
<fvec name="Charmonium:qg2ccbar(3S1)[1S0(8)]q" default="{off,off}"> 
Colour-octet production of <ei>3S1</ei> charmonium states via 
<ei>q g &rarr; ccbar[1S0(8)] q</ei>. 
Code 406. 
</fvec> 
 
<fvec name="Charmonium:qqbar2ccbar(3S1)[1S0(8)]g" default="{off,off}"> 
Colour-octet production of <ei>3S1</ei> charmonium states via 
<ei>q qbar &rarr; ccbar[1S0(8)] g</ei>. 
Code 407. 
</fvec> 
 
<fvec name="Charmonium:gg2ccbar(3S1)[3PJ(8)]g" default="{off,off}"> 
Colour-octet production of <ei>3S1</ei> charmonium states via 
<ei>g g &rarr; ccbar[3PJ(8)] g</ei>. 
Code 408. 
</fvec> 
 
<fvec name="Charmonium:qg2ccbar(3S1)[3PJ(8)]q" default="{off,off}"> 
Colour-octet production of <ei>3S1</ei> charmonium states via 
<ei>q g &rarr; ccbar[3PJ(8)] q</ei>. 
Code 409. 
</fvec> 
 
<fvec name="Charmonium:qqbar2ccbar(3S1)[3PJ(8)]g" default="{off,off}"> 
Colour-octet production of <ei>3S1</ei> charmonium states via 
<ei>q qbar &rarr; ccbar[3SJ(8)] g</ei>. 
Code 410. 
</fvec> 
 
<h3>Charmonium 3PJ States</h3> 
 
<b>Warning</b>: changed <code>fvec</code>, <code>mvec</code> or 
<code>pvec</code> values must be provided as a comma-separated list 
with the right number of elements, without any blanks inside the list. 
 
<mvec name="Charmonium:states(3PJ)" default="{10441,20443,445}"> 
The <ei>3PJ</ei> charmonium states that can be produced from the following 
processes. Note that all vectors within this section, 
either of flags or parameters, must be the same length as this 
vector. 
</mvec> 
 
<pvec name="Charmonium:O(3PJ)[3P0(1)]" default="{0.05,0.05,0.05}" 
min="0.0"> 
The color-singlet long-distance matrix elements 
<ei>&lt;O[3P0(1)]&gt;/m_Q^2</ei> for the <ei>3PJ</ei> charmonium 
states. The remaining <ei>&lt;O[3PJ(1)]&gt;/m_Q^2</ei> 
are calculated from these long-distance matrix elements. 
</pvec> 
 
<pvec name="Charmonium:O(3PJ)[3S1(8)]" default="{0.0031,0.0031,0.0031}" 
min="0.0"> 
The color-singlet long-distance matrix elements 
<ei>&lt;O[3S1(8)]&gt;</ei> for the <ei>3PJ</ei> charmonium states. 
</pvec> 
 
<fvec name="Charmonium:gg2ccbar(3PJ)[3PJ(1)]g" default="{off,off,off}"> 
Colour-singlet production of <ei>3PJ</ei> charmonium states via 
<ei>g g &rarr; ccbar[3PJ(1)] g</ei>. 
Code 411. 
</fvec> 
 
<fvec name="Charmonium:qg2ccbar(3PJ)[3PJ(1)]q" default="{off,off,off}"> 
Colour-singlet production of <ei>3PJ</ei> charmonium states via 
<ei>q g &rarr; ccbar[3PJ(1)] q</ei>. 
Code 412. 
</fvec> 
 
<fvec name="Charmonium:qqbar2ccbar(3PJ)[3PJ(1)]g" default="{off,off,off}"> 
Colour-singlet production of <ei>3PJ</ei> charmonium states via 
<ei>q qbar &rarr; ccbar[3PJ(1)] g</ei>. 
Code 413. 
</fvec> 
 
<fvec name="Charmonium:gg2ccbar(3PJ)[3S1(8)]g" default="{off,off,off}"> 
Colour-octet production of <ei>3PJ</ei> charmonium states via 
<ei>g g &rarr; ccbar[3S1(8)] g</ei>. 
Code 414. 
</fvec> 
 
<fvec name="Charmonium:qg2ccbar(3PJ)[3S1(8)]q" default="{off,off,off}"> 
Colour-octet production of <ei>3PJ</ei> charmonium states via 
<ei>q g &rarr; ccbar[3S1(8)] q</ei>. 
Code 415. 
</fvec> 
 
<fvec name="Charmonium:qqbar2ccbar(3PJ)[3S1(8)]g" default="{off,off,off}"> 
Colour-octet production of <ei>3PJ</ei> charmonium states via 
<ei>q qbar &rarr; ccbar[3S1(8)] g</ei>. 
Code 416. 
</fvec> 
 
<h3>Charmonium 3DJ States</h3> 
 
<b>Warning</b>: changed <code>fvec</code>, <code>mvec</code> or 
<code>pvec</code> values must be provided as a comma-separated list 
with the right number of elements, without any blanks inside the list. 
 
<mvec name="Charmonium:states(3DJ)" default="{30443}"> 
The <ei>3DJ</ei> charmonium states that can be produced from the following 
processes. Note that all vectors within this section, 
either of flags or parameters, must be the same length as this 
vector. 
</mvec> 
 
<pvec name="Charmonium:O(3DJ)[3D1(1)]" default="{0.161}" min="0.0"> 
The color-singlet long-distance matrix elements 
<ei>&lt;O[3D1(1)]&gt;</ei> for the <ei>3PJ</ei> charmonium 
states. For a <ei>3DJ</ei> charmonium state where <ei>J</ei> is 
not <ei>1</ei> the long distance matrix 
element <ei>&lt;O[3DJ(1)]&gt;</ei> is calculated 
by <ei>(2J+1)&lt;O[3D1(1)]/3&gt;</ei> using leading order spin symmetry 
relations. 
</pvec> 
 
<pvec name="Charmonium:O(3DJ)[3P0(8)]" default="{0.01}" min="0.0"> 
The colour-octet long-distance matrix 
elements <ei>&lt;O[3P0(8)]&gt;/m_Q^2</ei> for the 3DJ charmonium 
states. The remaining <ei>&lt;O[3PJ(8)]&gt;/m_Q^2</ei> 
are calculated from these long-distance matrix elements. 
</pvec> 
 
<fvec name="Charmonium:gg2ccbar(3DJ)[3DJ(1)]g" default="{off}"> 
Colour-singlet production of <ei>3PJ</ei> charmonium states via 
<ei>g g &rarr; ccbar[3DJ(1)] g</ei>. 
Code 417. 
</fvec> 
 
<fvec name="Charmonium:gg2ccbar(3DJ)[3PJ(8)]g" default="{off}"> 
Colour-octet production of <ei>3DJ</ei> charmonium states via 
<ei>g g &rarr; ccbar[3PJ(8)] g</ei>. 
Code 418. 
</fvec> 
 
<fvec name="Charmonium:qg2ccbar(3DJ)[3PJ(8)]q" default="{off}"> 
Colour-octet production of <ei>3DJ</ei> charmonium states via 
<ei>q g &rarr; ccbar[3PJ(8)] q</ei>. 
Code 419. 
</fvec> 
 
<fvec name="Charmonium:qqbar2ccbar(3DJ)[3PJ(8)]g" default="{off}"> 
Colour-octet production of <ei>3DJ</ei> charmonium states via 
<ei>q qbar &rarr; ccbar[3PJ(8)] g</ei>. 
Code 420. 
</fvec> 
 
<h3>Double Charmonium 3S1 States</h3> 
 
<b>Warning</b>: changed <code>fvec</code>, <code>mvec</code> or 
<code>pvec</code> values must be provided as a comma-separated list 
with the right number of elements, without any blanks inside the list. 
 
<mvec name="Charmonium:states(3S1)1" default="{443,443,100443}"> 
The first <ei>3S1</ei> charmonium states of the charmonium pairs that 
can be produced from the following processes. Note that all vectors 
within this section, either of modes, flags, or parameters, must be 
the same length as this vector. 
</mvec> 
 
<mvec name="Charmonium:states(3S1)2" default="{443,100443,100443}"> 
The second <ei>3S1</ei> charmonium states of the charmonium pairs that 
can be produced from the following processes. 
</mvec> 
 
<pvec name="Charmonium:O(3S1)[3S1(1)]1" default="{1.16,1.16,0.76}" min="0.0"> 
The color-singlet long-distance matrix elements 
<ei>&lt;O[3S1(1)]&gt;</ei> for the first <ei>3S1</ei> charmonium 
states. 
</pvec> 
 
<pvec name="Charmonium:O(3S1)[3S1(1)]2" default="{1.16,0.76,0.76}" min="0.0"> 
The color-singlet long-distance matrix elements 
<ei>&lt;O[3S1(1)]&gt;</ei> for the second <ei>3S1</ei> charmonium 
states. 
</pvec> 
 
<fvec name="Charmonium:gg2doubleccbar(3S1)[3S1(1)]" 
default="{off,off,off}"> 
Colour-singlet production of <ei>3S1</ei> charmonium state pairs via 
<ei>g g &rarr; ccbar[3S1(1)] ccbar[3S1(1)] </ei>. 
Code 421. 
</fvec> 
 
<fvec name="Charmonium:qqbar2doubleccbar(3S1)[3S1(1)]" 
default="{off,off,off}"> 
Colour-singlet production of <ei>3S1</ei> charmonium state pairs via 
<ei>q qbar &rarr; ccbar[3S1(1)] ccbar[3S1(1)] </ei>. 
Code 422. 
</fvec> 
 
<h3>Bottomonium 3S1 States</h3> 
 
<b>Warning</b>: changed <code>fvec</code>, <code>mvec</code> or 
<code>pvec</code> values must be provided as a comma-separated list 
with the right number of elements, without any blanks inside the list. 
 
<mvec name="Bottomonium:states(3S1)" default="{553,100553,200553}" 
min="0"> 
The <ei>3S1</ei> bottomonium states that can be produced from the following 
processes. Note that all vectors within this section, 
either of flags or parameters, must be the same length as this 
vector. 
</mvec> 
 
<pvec name="Bottomonium:O(3S1)[3S1(1)]" default="{9.28,4.63,3.54}" min="0.0"> 
The colour-singlet long-distance matrix 
elements <ei>&lt;O[3S1(1)]&gt;</ei> for the <ei>3S1</ei> bottomonium states. 
</pvec> 
 
<pvec name="Bottomonium:O(3S1)[3S1(8)]" default="{0.15,0.045,0.075}" 
min="0.0"> 
The colour-octet long-distance matrix 
elements <ei>&lt;O[3S1(8)]&gt;</ei> for the <ei>3S1</ei> bottomonium states. 
</pvec> 
 
<pvec name="Bottomonium:O(3S1)[1S0(8)]" default="{0.02,0.006,0.01}" min="0.0"> 
The colour-octet long-distance matrix 
elements <ei>&lt;O[1S0(8)]&gt;</ei> for the <ei>3S1</ei> 
bottomonium states. 
</pvec> 
 
<pvec name="Bottomonium:O(3S1)[3P0(8)]" default="{0.02,0.006,0.01}" min="0.0"> 
The colour-octet long-distance matrix 
elements <ei>&lt;O[3P0(8)]&gt;/m_Q^2</ei> for the <ei>3S1</ei> bottomonium 
states. The remaining <ei>&lt;O[3PJ(8)]&gt;/m_Q^2</ei> 
are calculated from these long-distance matrix elements. 
</pvec> 
 
<fvec name="Bottomonium:gg2bbbar(3S1)[3S1(1)]g" default="{off,off,off}"> 
Colour-singlet production of <ei>3S1</ei> bottomonium states via 
<ei>g g &rarr; bbbar[3S1(1)] g</ei>. 
Code 501. 
</fvec> 
 
<fvec name="Bottomonium:gg2bbbar(3S1)[3S1(1)]gm" default="{off,off,off}"> 
Colour-singlet production of <ei>3S1</ei> bottomonium states via 
<ei>g g &rarr; ccbar[3S1(1)] g</ei> with a hard <ei>gamma</ei>. 
Code 551. 
</fvec> 
 
<fvec name="Bottomonium:gg2bbbar(3S1)[3S1(8)]g" default="{off,off,off}"> 
Colour-octet production of <ei>3S1</ei> bottomonium states via 
<ei>g g &rarr; bbbar[3S1(8)] g</ei>. 
Code 502. 
</fvec> 
 
<fvec name="Bottomonium:qg2bbbar(3S1)[3S1(8)]q" default="{off,off,off}"> 
Colour-octet production of <ei>3S1</ei> bottomonium states via 
<ei>q g &rarr; bbbar[3S1(8)] q</ei>. 
Code 503. 
</fvec> 
 
<fvec name="Bottomonium:qqbar2bbbar(3S1)[3S1(8)]g" default="{off,off,off}"> 
Colour-octet production of <ei>3S1</ei> bottomonium states via 
<ei>q qbar &rarr; bbbar[3S1(8)] g</ei>. 
Code 504. 
</fvec> 
 
<fvec name="Bottomonium:gg2bbbar(3S1)[1S0(8)]g" default="{off,off,off}"> 
Colour-octet production of <ei>3S1</ei> bottomonium states via 
<ei>g g &rarr; bbbar[1S0(8)] g</ei>. 
Code 505. 
</fvec> 
 
<fvec name="Bottomonium:qg2bbbar(3S1)[1S0(8)]q" default="{off,off,off}"> 
Colour-octet production of <ei>3S1</ei> bottomonium states via 
<ei>q g &rarr; bbbar[1S0(8)] q</ei>. 
Code 506. 
</fvec> 
 
<fvec name="Bottomonium:qqbar2bbbar(3S1)[1S0(8)]g" default="{off,off,off}"> 
Colour-octet production of <ei>3S1</ei> bottomonium states via 
<ei>q qbar &rarr; bbbar[1S0(8)] g</ei>. 
Code 507. 
</fvec> 
 
<fvec name="Bottomonium:gg2bbbar(3S1)[3PJ(8)]g" default="{off,off,off}"> 
Colour-octet production of <ei>3S1</ei> bottomonium states via 
<ei>g g &rarr; bbbar[3PJ(8)] g</ei>. 
Code 508. 
</fvec> 
 
<fvec name="Bottomonium:qg2bbbar(3S1)[3PJ(8)]q" default="{off,off,off}"> 
Colour-octet production of <ei>3S1</ei> bottomonium states via 
<ei>q g &rarr; bbbar[3PJ(8)] q</ei>. 
Code 509. 
</fvec> 
 
<fvec name="Bottomonium:qqbar2bbbar(3S1)[3PJ(8)]g" default="{off,off,off}"> 
Colour-octet production of <ei>3S1</ei> bottomonium states via 
<ei>q qbar &rarr; bbbar[3SJ(8)] g</ei>. 
Code 510. 
</fvec> 
 
<h3>Bottomonium 3PJ States</h3> 
 
<b>Warning</b>: changed <code>fvec</code>, <code>mvec</code> or 
<code>pvec</code> values must be provided as a comma-separated list 
with the right number of elements, without any blanks inside the list. 
 
<mvec name="Bottomonium:states(3PJ)" default="{10551,20553,555}"> 
The <ei>3PJ</ei> bottomonium states that can be produced from the following 
processes. Note that all vectors within this section, 
either of flags or parameters, must be the same length as this 
vector. 
</mvec> 
 
<pvec name="Bottomonium:O(3PJ)[3P0(1)]" default="{0.085,0.085,0.085}" 
min="0.0"> 
The color-singlet long-distance matrix elements 
<ei>&lt;O[3P0(1)]&gt;/m_Q^2</ei> for the <ei>3PJ</ei> bottomonium 
states. The remaining <ei>&lt;O[3PJ(1)]&gt;/m_Q^2</ei> 
are calculated from these long-distance matrix elements. 
</pvec> 
 
<pvec name="Bottomonium:O(3PJ)[3S1(8)]" default="{0.04,0.04,0.04}" 
min="0.0"> 
The color-singlet long-distance matrix elements 
<ei>&lt;O[3S1(8)]&gt;</ei> for the <ei>3PJ</ei> bottomonium states. 
</pvec> 
 
<fvec name="Bottomonium:gg2bbbar(3PJ)[3PJ(1)]g" default="{off,off,off}"> 
Colour-singlet production of <ei>3PJ</ei> bottomonium states via 
<ei>g g &rarr; bbbar[3PJ(1)] g</ei>. 
Code 511. 
</fvec> 
 
<fvec name="Bottomonium:qg2bbbar(3PJ)[3PJ(1)]q" default="{off,off,off}"> 
Colour-singlet production of <ei>3PJ</ei> bottomonium states via 
<ei>q g &rarr; bbbar[3PJ(1)] q</ei>. 
Code 512. 
</fvec> 
 
<fvec name="Bottomonium:qqbar2bbbar(3PJ)[3PJ(1)]g" default="{off,off,off}"> 
Colour-singlet production of <ei>3PJ</ei> bottomonium states via 
<ei>q qbar &rarr; bbbar[3PJ(1)] g</ei>. 
Code 513. 
</fvec> 
 
<fvec name="Bottomonium:gg2bbbar(3PJ)[3S1(8)]g" default="{off,off,off}"> 
Colour-octet production of <ei>3PJ</ei> bottomonium states via 
<ei>g g &rarr; bbbar[3S1(8)] g</ei>. 
Code 514. 
</fvec> 
 
<fvec name="Bottomonium:qg2bbbar(3PJ)[3S1(8)]q" default="{off,off,off}"> 
Colour-octet production of <ei>3PJ</ei> bottomonium states via 
<ei>q g &rarr; bbbar[3S1(8)] q</ei>. 
Code 515. 
</fvec> 
 
<fvec name="Bottomonium:qqbar2bbbar(3PJ)[3S1(8)]g" default="{off,off,off}"> 
Colour-octet production of <ei>3PJ</ei> bottomonium states via 
<ei>q qbar &rarr; bbbar[3S1(8)] g</ei>. 
Code 516. 
</fvec> 
 
<h3>Bottomonium 3DJ States</h3> 
 
<b>Warning</b>: changed <code>fvec</code>, <code>mvec</code> or 
<code>pvec</code> values must be provided as a comma-separated list 
with the right number of elements, without any blanks inside the list. 
 
<mvec name="Bottomonium:states(3DJ)" default="{}"> 
The <ei>3DJ</ei> bottomonium states that can be produced from the following 
processes. Currently, no <ei>3DJ</ei> states are included in the 
default <code>ParticleData</code> and so none are included here. Note 
that all vectors within this section, either of flags or parameters, 
must be the same length as this vector. 
</mvec> 
 
<pvec name="Bottomonium:O(3DJ)[3D1(1)]" default="{}" min="0.0"> 
The color-singlet long-distance matrix elements 
<ei>&lt;O[3D1(1)]&gt;</ei> for the <ei>3PJ</ei> bottomonium 
states. For a <ei>3DJ</ei> bottomonium state where <ei>J</ei> is 
not <ei>1</ei> the long distance matrix 
element <ei>&lt;O[3DJ(1)]&gt;</ei> is calculated 
by <ei>(2J+1)&lt;O[3D1(1)]/3&gt;</ei> using leading order spin symmetry 
relations. 
</pvec> 
 
<pvec name="Bottomonium:O(3DJ)[3P0(8)]" default="{}" min="0.0"> 
The colour-octet long-distance matrix 
elements <ei>&lt;O[3P0(8)]&gt;/m_Q^2</ei> for the 3DJ bottomonium 
states. The remaining <ei>&lt;O[3PJ(8)]&gt;/m_Q^2</ei> 
are calculated from these long-distance matrix elements. 
</pvec> 
 
<fvec name="Bottomonium:gg2bbbar(3DJ)[3DJ(1)]g" default="{}"> 
Colour-singlet production of <ei>3PJ</ei> bottomonium states via 
<ei>g g &rarr; bbbar[3DJ(1)] g</ei>. 
Code 517. 
</fvec> 
 
<fvec name="Bottomonium:gg2bbbar(3DJ)[3PJ(8)]g" default="{}"> 
Colour-octet production of <ei>3DJ</ei> bottomonium states via 
<ei>g g &rarr; bbbar[3PJ(8)] g</ei>. 
Code 518. 
</fvec> 
 
<fvec name="Bottomonium:qg2bbbar(3DJ)[3PJ(8)]q" default="{}"> 
Colour-octet production of <ei>3DJ</ei> bottomonium states via 
<ei>q g &rarr; bbbar[3PJ(8)] q</ei>. 
Code 519. 
</fvec> 
 
<fvec name="Bottomonium:qqbar2bbbar(3DJ)[3PJ(8)]g" default="{}"> 
Colour-octet production of <ei>3DJ</ei> bottomonium states via 
<ei>q qbar &rarr; bbbar[3PJ(8)] g</ei>. 
Code 520. 
</fvec> 
 
<h3>Double Bottomonium 3S1 States</h3> 
 
<b>Warning</b>: changed <code>fvec</code>, <code>mvec</code> or 
<code>pvec</code> values must be provided as a comma-separated list 
with the right number of elements, without any blanks inside the list. 
 
<mvec name="Bottomonium:states(3S1)1" 
default="{553,553,553,100553,100553,200553}"> 
The first <ei>3S1</ei> bottomonium states of the bottomonium pairs 
that can be produced from the following processes. Note that all 
vectors within this section, either of modes, flags, or parameters, 
must be the same length as this vector. 
</mvec> 
 
<mvec name="Bottomonium:states(3S1)2" 
default="{553,100553,200553,100553,200553,200553}"> 
The second <ei>3S1</ei> bottomonium states of the bottomonium pairs that 
can be produced from the following processes. 
</mvec> 
 
<pvec name="Bottomonium:O(3S1)[3S1(1)]1" 
default="{9.28,9.28,9.28,4.63,4.63,3.54}" min="0.0"> 
The color-singlet long-distance matrix elements 
<ei>&lt;O[3S1(1)]&gt;</ei> for the first <ei>3S1</ei> bottomonium 
states. 
</pvec> 
 
<pvec name="Bottomonium:O(3S1)[3S1(1)]2" 
default="{9.28,4.63,3.54,4.63,3.54,3.54}" min="0.0"> 
The color-singlet long-distance matrix elements 
<ei>&lt;O[3S1(1)]&gt;</ei> for the second <ei>3S1</ei> bottomonium 
states. 
</pvec> 
 
<fvec name="Bottomonium:gg2doublebbbar(3S1)[3S1(1)]" 
default="{off,off,off,off,off,off}"> 
Colour-singlet production of <ei>3S1</ei> bottomonium state pairs via 
<ei>g g &rarr; bbbar[3S1(1)] bbbar[3S1(1)] </ei>. 
Code 521. 
</fvec> 
 
<fvec name="Bottomonium:qqbar2doublebbbar(3S1)[3S1(1)]" 
default="{off,off,off,off,off,off}"> 
Colour-singlet production of <ei>3S1</ei> bottomonium state pairs via 
<ei>q qbar &rarr; bbbar[3S1(1)] bbbar[3S1(1)] </ei>. 
Code 522. 
</fvec> 
 
</chapter> 
 
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